Looking for a software maintenance company to enhance your product performance, user experience, and security features? We assessed numerous agency profiles, success stories, and client reviews to compile this list of the best software maintenance services. Browse our directory and filter the selection by location, pricing, minimum budget, team size, and other criteria.

Best Software Maintenance Services

431 Companies-Rankings updated: October 26, 2026
Software Maintenance

Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

Software Maintenance × Construction ×
  • Talentica Software

    VerifiedVerified by the DesignRush team for authenticity and credibility.

    Building Products AI-Native Way

    Talentica offers product engineering, with a playbook-driven approach refined across more than 200 products over 22 years. Its 200+ GenAI-certified developers deployed AI features in 60% of products. Recommended for startups and SaaS companies needing MVP development, AI integration, or product scaling...

    Top Services:

    • Software Development
    • AI Development
    • IT Services
    • Big Data Analytics
    • Blockchain
    • Show more
    Location
    Pune, India
    Number of Employees
    500 - 999
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    7 Projects Listed

    Talentica Software Services

    • Software Development
    • AI Development
    • IT Services
    • Big Data Analytics
    • Blockchain
    • Mobile App Development
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Wideorbit
    • Sema4.AI
    • Realization Technologies Inc.
    • TailoredMail
    • StructuredWeb Inc
    • Amplify
    • Mist Systems (Juniper Company)
    Data sourced from the agency's DesignRush profile

    Talentica Software Reviews & Testimonials

    • Ashish Sharma
      Ashish Sharma Sr Engineering Manager at OpenGov India Pvt Ltd
      4.7★

      Software Development Review from Ashish Sharma

      Talentica has proven to be an exceptional software outsourcing partner, consistently exceeding expectations in both the quality of their resources, deliverables and their commitment to our success. They function not merely as a vendor, but as an extension of our core engineering team.Key Highlights of our Partnership:High Resource Quality: The engineers provided by Talentica are technically strong and highly competent. They integrate seamlessly with our internal teams and quickly take ownership of complex projects.Commitment and Reliability: Talentica is a truly reliable partner that consistently demonstrates a strong willingness to go beyond the standard scope of work. They proactively identify risks and contribute innovative solutions.Critical Project Support: Their expertise was pivotal in two critical areas:Data Pipeline & Reporting: They were instrumental in both enhancing and maintaining a reliable data pipeline & reporting infrastructure. Software Upgrades: They managed challenging, large-scale software upgrades, ensuring we successfully transitioned to modern technology stacks with minimal disruption.Overall, Talentica is a dependable and high-value partner assisting our mission-critical projects.

    • Anonymous
      Anonymous Advisor at IT Company
      5.0★

      Software Development Review from Anonymous

      We had created a conceptual framework to authenticate and verify the provenance, transaction history, and authorship of blockchain-based NFTs. Talentica was brought on board to test and refine the concept from both functional and engineering perspectives, and later to build a Minimum Viable Product (MVP) aligned with the agreed specifications and constraints.

    • Anonymous
      Anonymous Engineering Manager at SaaS Company
      5.0★

      Software Development Review from Anonymous

      For several years, the team was composed entirely of Talentica contractors. Since January 2022, I have been directly managing them. The Talentica team handled the admin tooling backend, which included multiple Python Flask services with Postgres and Elasticsearch. These services operated in a service-oriented architecture deployed on Kubernetes, using Istio for service mesh and Spinnaker for deployments.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Award Winning Custom Development Experts | ERP Integration | Shopify/BigCommerce

    QOLOS (pronounced "koh-lohs") is a U.S.-based software development company, specializing in building custom, high-performance digital solutions for brands that demand innovation. From complex ERP integrations to e-commerce solutions - you are in good hands with QOLOS...

    Top Services:

    • Web Development
    • eCommerce Development
    • WordPress Website Design
    • UI/UX Design
    • Software Development
    • Show more
    Location
    Green Bay, Wisconsin
    Number of Employees
    50 - 99
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $50,000 & Up
  • AI-Native App & Enterprise Software Development Company

    TechAhead, a global leader in AI-powered custom software development & cloud engineering services, trusted by Fortune 500 companies and enterprises worldwide. We are a Great Place to Work-certified company with 240+ experts and 16 years of experience in engineering innovative, scalable applications...

    Top Services:

    • Mobile App Development
    • AI Development
    • Software Development
    • IoT
    • Staff Augmentation
    • Show more
    Location
    Agoura Hills, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    26 Projects Listed
  • Innolab AI builds revenue engines, not just software. Jane creates pipeline. Luna closes it.

    Innolab AI builds AI systems that sell for you.Jane replaces SDR teams with automated, hyper-personalized outbound.Luna calls and books meetings 24/7 with human-like conversations.We help B2B leaders generate pipeline, cut admin time, and scale revenue without chaos...

    Top Services:

    • AI Development
    • Mobile App Development
    • Web Development
    • Software Testing
    • Blockchain
    • Show more
    Location
    Columbus, Ohio
    Number of Employees
    50 - 99
    Average Hourly Rate
    $59/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    2 Projects Listed
  • Software development with predictable timelines & costs

    Clockwise Software is a digital product development company with 10+ years in the market and 200+ delivered solutions across SaaS, ERP, Logistics, MarTech, and HealthTech. Senior engineers, product thinking, and reliable delivery with under 10% variance on CPI/SPI across projects...

    Top Services:

    • Software Development
    • Mobile App Development
    • Staff Augmentation
    • IT Services
    • AI Development
    • Show more
    Location
    Edinburgh, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    24 Projects Listed
  • AI-accelerated engineering partner for legacy modernization and smart enterprise solutions dev

    Founded in 2018, Devox Software partners with mid-market and enterprise businesses to modernize aging systems, engineer new digital products, and bring AI into production the right way: safely, incrementally, and with measurable ROI...

    Top Services:

    • Software Development
    • Cloud Consulting
    • AI Development
    • DevOps Consulting
    • Mobile App Development
    • Show more
    Location
    Miami, Florida
    Number of Employees
    100 - 249
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    7 Projects Listed
  • Custom Software & AI Development

    Montenegro Systems builds custom software and AI solutions for startups, growing businesses, and enterprises. We deliver end-to-end products and outsourced development teams, with a focus on construction, transportation, and real estate...

    Top Services:

    • Software Development
    • AI Development
    • Mobile App Development
    • Staff Augmentation
    • Managed Services
    • Show more
    Location
    Budva, Montenegro
    Number of Employees
    100 - 249
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $50,000 & Up
  • Innovate, Integrate, Inspire

    DWT (Digital Works Transformation) Technology has been offering business applications, CRM, Integration, migration, database and analytics services since 2017. Our data model is equipped and we support advanced technologies of Oracle Cloud ERP, Microsoft Dynamics, ServiceNow, Salesforce, Big Data, Data...

    Top Services:

    • AI Development
    • Software Development
    • ERP Consulting
    • Big Data Analytics
    • Staff Augmentation
    • Show more
    Location
    Jeddah, Saudi Arabia
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    1 Project Listed
  • Succeed Faster with Syberry.

    Austin-based Syberry builds custom software that companies own outright, replacing costly SaaS tools, modernizing legacy systems, and putting AI to work with people firmly in control. Since 2011, our team has shipped 300+ solutions for startups and Fortune 200 brands. A distinctive delivery process, run on...

    Top Services:

    • Software Development
    • Mobile App Development
    • AI Development
    • Cloud Consulting
    • IoT
    • Show more
    Location
    Austin, Texas
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
  • Your trusted AI software development partner

    Diffco is a software development company that builds cross-platform mobile apps, bespoke SaaS portals, custom database architectures, and admin management panels. The studio deploys clean Python, Node.js, React, and Swift codebases alongside automated testing setups and CI/CD pipelines engineered for...

    Top Services:

    • AI Development
    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Web Development
    • Show more
    Location
    San Jose, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $110/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    31 Projects Listed
  • Techforce Global: Your Catalyst for Seamless Solutions

    Techforce Global: Your partner for government custom software development, React Native development and more. Offering comprehensive services across industries with a global presence and a focus on scalable, intelligent solutions...

    Top Services:

    • Software Development
    • Web Development
    • Mobile App Development
    • IT Services
    • Cloud Consulting
    • Show more
    Location
    Naperville, Illinois
    Number of Employees
    100 - 249
    Average Hourly Rate
    $26/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    20 Projects Listed
  • Transforming Business Through Scalable Software and Ethical AI

    SumatoSoft helps global enterprises and ambitious startups bridge the gap between traditional digitalization and the AI frontier. As a premier AI software development company, we build more than just code; we engineer governed AI ecosystems and scalable platforms that turn raw data into a competitiv...

    Top Services:

    • Software Development
    • Mobile App Development
    • IoT
    • UI/UX Design
    • Big Data Analytics
    • Show more
    Location
    Boston, Massachusetts
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    10 Projects Listed
  • Engineering for live products where mistakes are expensive.

    KITRUM is an engineering partner focused on building on top of live software products. We help them grow beyond their original design by modernizing architecture, adding new capabilities, and scaling systems without disrupting what already works...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • IT Services
    • AI Development
    • Show more
    Location
    Miami, Florida
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    11 Projects Listed
  • Dare to Create*

    Bespoke software development & AI integration for SaaS companies and tech-driven businesses. 22 years of engineering excellence, 450+ delivered products...

    Top Services:

    • Software Development
    • IT Services
    • Mobile App Development
    • IoT
    • AI Development
    • Show more
    Location
    The Hague, Netherlands
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    13 Projects Listed
  • Transform your business ambitions into measurable outcomes

    Tech strategy advisor & delivery partner with 25+ years of experience. We deliver measurable results through a unique, AI-enabled advisory & delivery framework combining technological heritage with AI-driven optimisation to scale faster, with full governance and compliance...

    Top Services:

    • Software Development
    • Cloud Consulting
    • DevOps Consulting
    • Big Data Analytics
    • IT Services
    • Show more
    Location
    Gliwice, Poland
    Number of Employees
    500 - 999
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    20 Projects Listed
  • COAX Software

    VerifiedVerified by the DesignRush team for authenticity and credibility.
    Smart software solutions for travel, transport & logistics

    COAX Software delivers smart software solutions for travel, transport & logisticsconnecting strategy, delivery, and growth to ship reliable, scalable, ROI-positive software...

    Top Services:

    • Web Development
    • Web Design
    • Mobile App Development
    • eCommerce Development
    • UI/UX Design
    • Show more
    Location
    Chicago, Illinois
    Number of Employees
    100 - 249
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    8 Projects Listed
  • Leading Edge. Lasting Impact.

    Troy Web Consulting is a trusted guide for organizations, delivering high-quality, practical software solutionscustom web apps, mobile apps, and websiteson time and on budget. We specialize in solving business challenges through custom tailored software development...

    Top Services:

    • Software Development
    • Mobile App Development
    • eCommerce Development
    • AI Development
    • Software Testing
    • Show more
    Location
    Cohoes, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $155/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    27 Projects Listed
  • Business software with AI inside, built in Houston since 2004.

    Espresso Moon is a Houston custom software company that builds AI-enabled business applications, mobile apps, and cloud platforms for B2B clients, and hosts and supports everything it delivers. We also own and operate GageList, a calibration management SaaS with AI built into the product...

    Top Services:

    • AI Development
    • Software Development
    • Mobile App Development
    • Software Testing
    • UI/UX Design
    • Show more
    Location
    Spring, Texas
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $25,000 - $50,000
  • We Bring Bold Ideas to Life.

    IT, Software, and Chatbot Solutions to upscale your business. We partner with entrepreneurs and business leaders to design and build transformative technology solutions. By putting business goals first and the technology second, we achieve more impactful outcomes...

    Top Services:

    • IT Services
    • Staff Augmentation
    • Mobile App Development
    • Software Development
    • Show more
    Location
    New Orleans, Louisiana
    Number of Employees
    Under 49
    Average Hourly Rate
    $135/hr
    Minimal Budget
    $25,000 - $50,000
  • CodeBranch is an agentic software development partner for U.S. companies

    CodeBranch is an agentic software development partner for U.S. companies, from building new products to scaling existing ones. Senior-led teams in Colombia, working U.S. hours, deliver with AI-native pipelines and our own Spec-Driven Development framework, with quality and security built into every...

    Top Services:

    • Software Development
    • AI Development
    • Mobile App Development
    Location
    Medellín, Colombia
    Number of Employees
    Under 49
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    13 Projects Listed
  • Software Development Company. Outcome-Focused Engineering Partners.

    We're a software development company and outcome-focused engineering partner.Our approach is simple: use AI where it helps, and senior engineers where it matters. Because your business matters and so do your results...

    Top Services:

    • Software Development
    • Mobile App Development
    • Staff Augmentation
    • DevOps Consulting
    • AI Development
    • Show more
    Location
    Lviv, Ukraine
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    4 Projects Listed
  • Custom Software Development & Design for Growing Companies

    Growing companies partner with Frogslayer on mission-critical technology projects requiring speed and precision. We rescue projects gone sideways, modernize & re-write outdated systems, wrangle complex data and integrations, launch new produ...

    Top Services:

    • Software Development
    • Mobile App Development
    Location
    College Station, Texas
    Number of Employees
    50 - 99
    Minimal Budget
    $25,000 - $50,000
  • Strategy-led design + marketing for respected brands.

    Your brand, brewed to perfection. Websites, apps, UX + marketing systems that helps your company grow with clarity...

    Top Services:

    • Product Design
    • Digital Marketing
    • UI/UX Design
    • Graphic Design
    • Digital Strategy
    • Show more
    Location
    Calgary, Canada
    Number of Employees
    Under 49
    Average Hourly Rate
    $130/hr
    Minimal Budget
    $25,000 - $50,000
  • We Engineer Enterprise AI Development

    Engineered in the US based, delivered by a global team with more than 9 years of enterprise engineering experience and 800+ production systems behind us...

    Top Services:

    • AI Development
    • Mobile App Development
    • Software Development
    • IT Services
    • Staff Augmentation
    • Show more
    Location
    Reston, Virginia
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    1 Project Listed
  • We Make 'Delivering Excellence' Effortless

    SCS Tech India is an IT solutions company with expertise on various technology platforms, we enable our global customers achieve digital transformation and provide smart product solutions with our tech consulting, bespoke solutions, as well as professional services. We enable clients across the globe to...

    Top Services:

    • Digital Services
    • IoT
    • AI Development
    • Mobile App Development
    • Blockchain
    • Show more
    Location
    Mumbai, India
    Number of Employees
    100 - 249
    Average Hourly Rate
    $1000/hr
    Minimal Budget
    $25,000 - $50,000
  • Actual AI. Actual results.

    Actual Reality Technologies is an AI solutions consultancy in Perrysburg, Ohio, built for manufacturers tired of AI hype and hungry for measurable outcomes. We pair frontier AI and machine learning with Lean Six Sigma discipline our CEO is a Master Black Belt with 15 years at GE Aviation and operations...

    Top Services:

    • AI Development
    • Software Development
    • Big Data Analytics
    • IoT
    • Mobile App Development
    • Show more
    Location
    Perrysburg, Ohio
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    1 Project Listed
  • AI-first digital solutions for ambitious teams

    Solnix Media is an AI-first digital agency building practical websites, software, and automation for growing teams. We combine strategy, design, engineering, and AI to turn complex ideas into useful digital products...

    Top Services:

    • Digital Strategy
    • Web Design
    • Web Development
    • AI Development
    • Software Development
    • Show more
    Location
    Hyderabad, India
    Number of Employees
    100 - 249
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $25,000 - $50,000
  • We scale software companies and automate the businesses that run on software.

    MVP1 Ventures is a Brisbane-based product engineering and AI firm. We work with two kinds of business: software companies whose product has outgrown the team building it, and operators whose business runs on manual process that software should have absorbed years ago. Our engagements are judged on the...

    Top Services:

    • Software Development
    • Mobile App Development
    • AI Development
    • IT Services
    • DevOps Consulting
    • Show more
    Location
    Brisbane, Australia
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    1 Project Listed
  • Designli

    VerifiedVerified by the DesignRush team for authenticity and credibility.AI LeaderRecognized for strong visibility across AI-powered search and answer engines.

    Build software people actually pay for.

    Designli builds mobile apps, web apps, and SaaS platforms in React Native for clients like Michelin, Hearst, and Goodwill, with 200+ product launches. Its development team uses AI-empowered engineering. The software development agency is best for businesses needing a dedicated, full-time product team...

    Top Services:

    • Mobile App Development
    • Software Development
    • AI Development
    • Web Development
    • Web Design
    • Show more
    Location
    Greenville, South Carolina
    Number of Employees
    50 - 99
    Average Hourly Rate
    $85/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    17 Projects Listed

    Designli Services

    • Mobile App Development
    • Software Development
    • AI Development
    • Web Development
    • Web Design
    • UI/UX Design
    • Software Testing
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Goodwill
    • Earthlink
    • Rotary
    • State of South Carolina
    • Secur.Space
    • Grappos
    • Michelin
    • Accel Entertainment
    • Millennium Parking Garages
    Data sourced from the agency's DesignRush profile

    Designli Reviews & Testimonials

    • John Laporte
      John Laporte Founder at Vets on Point
      5.0★

      Mobile App Development Review from John Laporte

      Designli helped us define the requirements, features, and user experience for an app for our motorcycle organization. They produced technical documentation and a clickable prototype covering navigation, member tools, and safety features. They were responsive, delivered on time every time, and turned our broad concepts into something people could actually click through. The prototype got our stakeholders aligned, earned internal approval, and set us up for engineering, and working out design questions early should save us rework later.

    • Brandi Heffner
      Brandi Heffner Founder at BuckHub
      5.0★

      Mobile App Development Review from Brandi Heffner

      Designli built our SaaS product from scratch, using AI to speed up development, with AWS and Cloudflare in the stack, and they also handle our hosting and maintenance. We had a working MVP in just 30 days and have kept adding features since. In the first 60 days they went beyond what we expected, largely because they took the time to really learn our business and our market. Coordination through Basecamp and Google Meet has kept everything organized.

    • Thomas Simmons
      Thomas Simmons CEO at Simmons Driving School
      5.0★

      Mobile App Development Review from Thomas Simmons

      Designli took over app development and marketing for our driving school, with the goal of building a product we could eventually offer to other schools. Within two and a half months, the app was up and running in our own school. Their project management is excellent, and they push back constructively, thinking through what we actually need instead of building every request as-is.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Promising customized mobile and web app solutions

    Simpalm builds mobile, web, and AI apps using React Native, Flutter, and Node.js, with clients like University of Maryland and AudioBooksNow. The software development agency serves startups, nonprofits, and government. It’s best for businesses needing a US-based mobile and web development partner...

    Top Services:

    • Mobile App Development
    • Web Development
    • Web Design
    • UI/UX Design
    • eCommerce Development
    • Show more
    Location
    Rockville, Maryland
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    22 Projects Listed
  • eSEOspace

    VerifiedVerified by the DesignRush team for authenticity and credibility.Award WinnerRecipient of a Best Design Award for outstanding work.

    Custom Website Design Company. Local US-based team! We Preserve & Optimize your SEO in the Process

    Services We Offer: Software, Web Applications. We have 15+ years of experience designing and developing websites and software from scratch. Our background and emphasis in behavior science allows us to creatively design websites and software systems to convert. Call us at: (916) 866-7893 for a quote!...

    Top Services:

    • Web Design
    • Web Development
    • WordPress Website Design
    • eCommerce Development
    • SEO
    • Show more
    Location
    San Diego, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    32 Projects Listed

    eSEOspace Services

    • Web Design
    • Web Development
    • WordPress Website Design
    • eCommerce Development
    • SEO
    • Graphic Design
    • Mobile App Development
    • CRM Consulting
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Executive Partners
    • Atlantic Partners Corp
    • Canyon Plastics
    • J Allen Fabrics
    • onePRgroup
    • The Sleep Nest
    • EdgeCTP
    • Consultants in Corporate Innovation
    • CalMuni Advisors
    • Avitasen
    Data sourced from the agency's DesignRush profile

    eSEOspace Reviews & Testimonials

    • Muriell Carlisle, LMHC, RAS, C.H.T.
      Muriell Carlisle, LMHC, RAS, C.H.T. Owner at Counseling Oregon, LLC
      5.0★

      Web Design Review from Muriell Carlisle, LMHC, RAS, C.H.T.

      I just want to express my deepest gratitude for all of your help. I can't tell you enough how much I LOVE the website. I think it's so beautiful, professional and elegant. I think it's one of the best therapist's website[s] on the market. :) Thanks to Jeanette and [the] rest of the team for their creativity and neat work and Irina for her incredible knowledge about SEO and resources! You guys rock! (Verified via email)

    • Alyssa Brenke
      Alyssa Brenke Marketing Manager at Cole Industrial, Inc.
      4.8★

      Web Design Review from Alyssa Brenke

      Specifically, working with Ben was amazing! He was incredibly responsive and answered all my questions throughout the process of updating our website. Our original site was built roughly a decade ago (or longer) so we were in need of some streamlining and modernization. The team did just that and quickly! The first iteration was spot on for what we were looking for. Not to mention, they were able to launch quickly and without any interruption to our daily operations. Would 100% recommend [it]!

    • George Shvaya CEO at Pocket Deals
      5.0★

      Web Design Review from George Shvaya

      Irina and Ben from [eSEOspace] were a dream to work with! Not only did they turn[...]around work quickly, but their attention to detail is fantastic, as is their regular communication. I will definitely be reaching out to [eSEOspace] again in the future with more work! (Verified via email)

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • AI-Native, Business-Ready Development Services. Engineered to Scale

    At Mobcoder AI, certified engineers and data scientists help you identify high-ROI AI use cases and operationalize them at scale. With 150+ deployments, CMMI Level 3 certification and 12+ years of experience, we build AI solutions governed by design and model-agnostic frameworks...

    Top Services:

    • Mobile App Development
    • AI Development
    • Software Development
    • Web Development
    • VR/AR
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    100 - 249
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    14 Projects Listed
  • The software studio on subscription.

    The software studio on subscription. We are setting the standard for software built with AI...

    Top Services:

    • Software Development
    • Web Development
    • eCommerce Development
    • Web Design
    • Mobile App Development
    • Show more
    Location
    Zürich, Switzerland
    Number of Employees
    Under 49
    Average Hourly Rate
    $120/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    6 Projects Listed
  • Exoft is a software house with a significant background in web and mobile development.

    Exoft is a custom software development company that provides solutions to address various business needs...

    Top Services:

    • Software Development
    • Web Development
    • Software Testing
    • Cybersecurity
    • IT Services
    • Show more
    Location
    Lviv, Ukraine
    Number of Employees
    50 - 99
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    14 Projects Listed
  • Strategic Technology Partner for Custom Software & Mobile Development

    Techstack is a strategic technology partner with 10+ years of expertise in mobile and custom software development. We build, scale, and evolve high-quality digital products through strong engineering culture, transparency, and long-term growth focus...

    Top Services:

    • Mobile App Development
    • Web Development
    • Software Development
    • Web Design
    • AI Development
    • Show more
    Location
    Wroclaw, Poland
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    24 Projects Listed
  • The Leading App Development Agency In Canada

    You wouldn't call a plumber to work on your electric panel, right? Then why hire a marketing or web agency to build a mobile app? For more than a decade, our passionate team has been developing mobile projects and helping innovative companies of all sizes worldwide reach their true mobile potential. And...

    Top Services:

    • Mobile App Development
    • Web Development
    • Software Development
    • IoT
    • Web Design
    • Show more
    Location
    Montreal, Canada
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    7 Projects Listed
  • Innovating Success Through Technology & Blockchain.

    InvoZone provides comprehensive software development consulting services for businesses, startups, and enterprises...

    Top Services:

    • Mobile App Development
    • Software Development
    • eCommerce Development
    • Blockchain
    • AI Development
    • Show more
    Location
    Pembroke Pines, Florida
    Number of Employees
    500 - 999
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    28 Projects Listed
  • Noetic Brands

    VerifiedVerified by the DesignRush team for authenticity and credibility.
    A Creative Extension Of Your Business

    At Noetic Brands where design meets technology to create meaningful digital experiences. Driven by research, expertise, and a passion for innovation, we craft solutions that elevate brands and engage audiences...

    Top Services:

    • UI/UX Design
    • Branding
    • Graphic Design
    • Creative Services
    • Mobile App Development
    • Show more
    Location
    Toronto, Canada
    Number of Employees
    Under 49
    Average Hourly Rate
    $120/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    16 Projects Listed
  • AI-First Company for Rapid Product Development

    We are global web3.0 Software engineering company making success stories for more two decades with highly motivated and experience teams and a proven agile framework. we prioritize the commercial goal of our customer deliver the highest business value. we are a renowned blockchain app development company in...

    Top Services:

    • Blockchain
    • AI Development
    • Mobile App Development
    • Software Development
    • Web Design
    • Show more
    Location
    Mohali, India
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    7 Projects Listed
  • KrishaWeb

    VerifiedVerified by the DesignRush team for authenticity and credibility.

    Transforming Digital Experiences

    KrishaWeb is a full-service digital agency building web, software, AI, and marketing solutions since 2008. From custom websites and eCommerce to AI development, vibe coding, and white-label services, we help businesses worldwide build, modernize, and scale...

    Top Services:

    • Web Design
    • Web Development
    • eCommerce Development
    • Digital Marketing
    • WordPress Website Design
    • Show more
    Location
    Loveland, Colorado
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    20 Projects Listed

    KrishaWeb Services

    • Web Design
    • Web Development
    • eCommerce Development
    • Digital Marketing
    • WordPress Website Design
    • Mobile App Development
    • Software Development
    • AI Development
    • Staff Augmentation
    • Design Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • AY&J Solicitors
    • CERAGEM
    • EMAAR
    • WHO (World Health Organization)
    • HP
    • GharPedia
    • Panda Kitchen and Bath
    • New Maxico State University
    • The Pennsylvania State University
    • Duke University
    Data sourced from the agency's DesignRush profile

    KrishaWeb Reviews & Testimonials

    • Charnita Mack
      Charnita Mack Undisclosed at Undisclosed
      4.0★

      Web Development Review from Charnita Mack

      Charnita Mack commends KrishaWeb for its efficient work, promptly completing the project with little to no issues. (Source: 3rd Party Review Platform)

    • Marinus Atanga
      Marinus Atanga President at Ennovative Solutions Inc
      5.0★

      UI/UX Design Review from Marinus Atanga

      Sanjay was the Project Manager. The agency was proactive during and after the project, offering necessary support and assistance. The project was finalized within the set budget and timeframe, and it operated as anticipated. (Verified via email)

    • Lukasz Zelezny SEO Expert
      Lukasz Zelezny SEO Expert Founder at SEO.London
      5.0★

      Web Design Review from Lukasz Zelezny SEO Expert

      I recently had the pleasure of working with KrishaWeb to design a WordPress-based website for my business, and I am thrilled to share my experience. From start to finish, KrishaWeb exceeded all of my expectations and delivered a phenomenal final product that has left me beyond satisfied. The talent, dedication, and expertise of the team at KrishaWeb are unparalleled, and I wholeheartedly recommend them to anyone looking to create an exceptional online presence.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • AI-Native Product Engineering Company

    Developer Bazaar Technologies is a Top AI Development company building custom Mobile App & Software Development and specializing in building AI Solutions delivering mesurable outcome...

    Top Services:

    • Mobile App Development
    • eCommerce Development
    • Software Development
    • IT Services
    • Staff Augmentation
    • Show more
    Location
    Indore, India
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    6 Projects Listed
  • Building Software with Integrity and Impact

    KeenEthics is a long-term software development partner supporting clients from early AI prototypes to no-code apps, fully custom solutions...

    Top Services:

    • Web Development
    • Software Development
    • Mobile App Development
    • Web Design
    • UI/UX Design
    • Show more
    Location
    Tallinn, Estonia
    Number of Employees
    50 - 99
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    6 Projects Listed
  • Web & Mobile Development Company

    At AMgrade, we empower businesses - from innovative startups to established enterprises - in over 53 countries with custom software development and Staff Augmentation services...

    Top Services:

    • Web Development
    • Staff Augmentation
    • Software Development
    • Mobile App Development
    • Web Design
    • Show more
    Location
    Prague, Czech Republic
    Number of Employees
    50 - 99
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    9 Projects Listed
  • Native | Hybrid | IOS & Android Mobile App Development

    NewAgeSys IT, Top Mobile App Development Company in NJ, provide mobile app development services to various vertical such as Healthcare, Fitness, Social & Networking, Sports, Education, Utility, On Demand Services etc. We take care of Mobile App UI/UX Design & Development, API & Back-end Programming...

    Top Services:

    • Mobile App Development
    • Web Development
    • Software Development
    • Web Design
    • ERP Consulting
    • Show more
    Location
    Princeton, New Jersey
    Number of Employees
    250 - 499
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    21 Projects Listed
  • We digitalize the way your business operates

    Apiko is a digital transformation consultancy & software development partner that develops highly-performing solutions for startups and established companies, focusing on scalability, innovation, and transparency of actions. Using our deep domain knowledge and cutting-edge software engineering culture, we...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Design
    • Web Development
    • Software Testing
    • Show more
    Location
    Ternopil, Ukraine
    Number of Employees
    100 - 249
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    7 Projects Listed
  • Flexible IT Talent and Agile Software Solutions

    Formed in 2010, eSparkBiz is a world-recognized software development company, offering businesses a culture of innovations. Our mobile and web development solutions provide businesses a competitive edge and help them overcome their businesses limitations...

    Top Services:

    • Software Development
    • Mobile App Development
    • Blockchain
    • IoT
    • Staff Augmentation
    • Show more
    Location
    Ahmedabad, India
    Number of Employees
    250 - 499
    Average Hourly Rate
    $18/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    20 Projects Listed
  • Before the code comes the compass.

    We don't start with codewe start with your business. By combining strategic thinking, AI-assisted analysis, and custom software development, we help companies invest in the right digital solutions and build long-term competitive advantage...

    Top Services:

    • Software Development
    • Web Development
    Location
    Vilnius, Lithuania
    Number of Employees
    Under 49
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed
  • Custom software solutions and innovative services crafted to meet your business goals.

    A boutique software agency specializing in custom, innovative solutions to your unique requirements. Our entire development team is located in North America...

    Top Services:

    • Software Development
    • Mobile App Development
    • Staff Augmentation
    • DevOps Consulting
    • Cloud Consulting
    • Show more
    Location
    Toronto, Canada
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    16 Projects Listed
  • Inspiring Business Through Technology

    itecExperts Pvt Ltd, Software Development & Digital Marketing Company ProvidesBrand-Centric services for Small-Medium Businesses, Startups Entrepreneurs andOrganizations.ItecExperts aims to Inspire business through technology by increasing their business Efficiency, Growth, and Sales by adopting the...

    Top Services:

    • UI/UX Design
    • Web Development
    • eCommerce Development
    • Web Design
    • WordPress Website Design
    • Show more
    Location
    Peshawar, Pakistan
    Number of Employees
    100 - 249
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
  • Custom Mobile Apps, Web Platforms & AI - Paris Studio Since 2018

    Paris-based mobile, web, SaaS and AI development agency founded in 2018, team of 51. A good fit for adding AI (agents, ChatGPT) to existing software, taking over an app left by a previous provider, or launching a mobile app. Projects from €8,000...

    Top Services:

    • Mobile App Development
    • Software Development
    • UI/UX Design
    • AI Development
    • Web Development
    • Show more
    Location
    Paris, France
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    5 Projects Listed

Why companies trust DesignRush

Every agency is independently vetted before it can be listed or ranked

1

Identity Check

We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
129,656+
2

Portfolio Review

We review agency work, case studies, and results to confirm skill.

Applicants rejected
47%
3

Ongoing Audit

We monitor listings regularly; outdated agencies are removed.

Agencies verified
431

Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.

See how rankings and monetization work.

Software Maintenance Company Hiring Guide

What is a software maintenance company?

A software maintenance company is a specialized IT company that optimizes software products to ensure they remain agile, functional, and aligned with the latest technological advancements. Its core focus is maintaining software quality by eliminating bugs and glitches, improving user experience, and supporting product growth and scalability. 

As part of its software maintenance and support services, this agency also helps businesses resolve some of the following challenges: 

  • Crashing and poor-performing software 
  • Low user engagement and high user churn rate 
  • Inability to integrate with operating and data systems, API versions, and communication protocols 
  • Incompatibility with newer devices and their operating systems 
  • Reliance on legacy code, which can incur higher maintenance costs and hinder integration with modern technologies 
  • Inability to comply with the latest international regulations 
  • Limited in-house expertise and resources for software development, testing and maintenance  
  • Frequent cybersecurity incidents across existing software 

Valued at $209 billion in 2023, the software maintenance service market is predicted to reach $807 billion by 2031, with a compound annual growth rate (CAGR) of 18.45% from 2024 to 2031. The market is projected to grow due to the increasing need for operational efficiency and evolving customer demand for digital solutions.

Success story 

For a more concrete understanding of what software maintenance companies can do for businesses, we selected this case study from ELEKS: 

  • Challenge: Network solutions provider Medusabusiness partnered with ELEKS to re-engineer and update its flagship product, Medusa, that was approaching the end of its technological and economic lifecycle. 
  • Solution: ELEKS reworked Medusa's architecture on the cloud and updated its traffic routing. Then, it produced a minimum viable product (MVP), performed quality assurance, and implemented self-service functions. ELEKS also provided continuous support and maintenance, integrating off-the-shelf solutions to support the client’s evolving needs. 
  • Results: Through its specialized expertise in network routing and software engineering, ELEKS ensured zero issues for 90% of Medusa’s upgraded features, which saved Medusabusiness 40% on operational costs and 20% on support efforts. Moreover, the enhanced product led to a 10% customer growth. 

What do software maintenance companies do?

Software maintenance companies modify and update websites, applications, and other systems to resolve issues that have manifested post-launch and improve the product’s overall performance. This allows the solution to stay effective, competitive, secure, and adaptive to evolving technologies and industry standards. 

Key software maintenance services include: 

  • Software audit 
    Analyzing the software to assess overall quality, test for issues, and measure it against a business’ envisioned objectives and the latest standards and regulations 
  • Hosting and infrastructure maintenance 
    Managing servers, databases, and other software infrastructure components to ensure undisrupted operation and scalability 
  • Bug/Corrective software maintenance 
    Repairing minor software defects that impact the app’s overall functionalities, like bugs, glitches, errors, and faults 
  • Preventative software maintenance 
    Taking premeditated measures such as documentation updates, code optimization, and data backup to safeguard against potential issues and vulnerabilities 
  • Perfective software maintenance 
    Amplifying functionality to fulfill the users’ needs by adding new capabilities, implementing user feedback, and removing outdated and ineffective features 
  • Adaptive software maintenance 
    Implementing software changes to adhere to new business policies, changing regulatory requirements, or software and hardware updates 
  • Backup and disaster recovery 
    Backing up software data and establishing processes to quickly restore operations in case of a disaster or emergency 
  • Quality assurance 
    Conducting rigorous tests to identify and resolve functionality defects and ensure the software aligns with the latest practices, regulations, and quality standards 
  • Product migration 
    Transitioning an existing product to a new platform or technology while maintaining data integrity and functionality 

Success story 

To showcase software maintenance services in action, we have selected this case study from iQuasar: 

  • Challenge: A commercial process improvement company engaged iQuasar to migrate and update its existing application, originally built with an outdated version of VC++ and C#. The application faced several critical issues impeding its scalability and maintenance, including fragmented and overly complex code, inefficient workflows, incomplete documentation, incompatible external library dependencies, outdated UI/UX, and outdated technologies and plugins. 
  • Solution: iQuasar upgraded VC++ and C# to the latest version, including the attached components. It also consolidated and organized the codebase, enhanced code readability, optimized the code image, implemented a stable and adaptable workflow by decoupling select modules, and audited and upgraded the external library. Moreover, iQuasar focused on producing a modern and user-friendly UI/UX design and provided comprehensive project documentation that followed the industry’s standardization practices. 
  • Results: The collaboration with iQuasar led to a more robust, stable, efficient, and future-ready application with increased performance longevity and user satisfaction. 

What is the difference between software maintenance and support?

The difference between software maintenance and support lies primarily in their scope of work. Software maintenance involves ongoing improvements and updates throughout the entirety of the software development lifecycle to ensure long-term product value in the long term, including bug fixes, performance optimization, and feature enhancement. In contrast, software support addresses immediate user issues, provides quick fixes and troubleshooting, and helps end-users effectively use the product. 

Other key distinctions include: 

Software maintenance Software support 
Assists companies supplying the software Provides assistance to end-users 
Resolves issues that impact software’s function, performance, and other aspects Fixes short-term functional issues that impact user experience 
Services include updating code and features, optimizing performance, fixing bugs, implementing security and preventive measures, and ensuring environmental adaptation Services include troubleshooting, user training, remote assistance, and onsite support 

How much do software maintenance services cost?

Software maintenance services cost between $5,000 and $50,000 per month. Enterprise software maintenance fees can reach up to 70-90% of the total cost of ownership, while fees for mobile and web app maintenance amount to 15-20% of the original development costs.  

The range of these costs can vary significantly, depending on several factors: 

  • Type of maintenance 
  • Age of software system 
  • System complexity 
  • Hardware stability 
  • Number of new features, functionalities, and integrations 
  • Number of internal and external users 
  • State of documentation  
  • Length of agreement 
  • Agency location and expertise 

Why should I hire a software maintenance service?

You should hire a software maintenance service to resolve software issues, scale your software product, and ensure that it remains valuable to your target users, ultimately, contributing to your business continuity and profitability. Outsourcing such a service allows you and your team to focus on core business activities while you rely on an expert team to optimize your software. 

Software maintenance companies can also help you: 

  • Improve product reliability by fixing arising problems, including bugs, slow-loading systems, and poor-performing features 
  • Improve software efficiency by optimizing codes and retiring outdated functions 
  • Elevate user experience by updating or adding new capabilities that meet users’ needs 
  • Increase cost-efficiency, as software maintenance companies can provide you access to professional tools, software, and technology  
  • Extend product lifespan by keeping it up to date with the latest hardware and software systems 
  • Improve user adoption through application programming interface (API) integrations and software interoperability 
  • Navigate the security and privacy regulations of different regions 
  • Migrate legacy software without losing valuable data and key software functions  
  • Safeguard against sophisticated cyber-attacks  

Success story 

To further emphasize the befits of hiring a software maintenance company, we handpicked a case study from Origina: 

  • Challenge: Trustmark National Bank (TNB) faced a complex challenge in moving away from IBM after an unfavorable three-year agreement. With IBM proposing significant fee increases for renewed support, the bank sought to avoid a new multiyear commitment while maintaining essential support for its software. To manage this transition, Trustmark required a skilled maintenance partner to sustain its current software without extending reliance on IBM. 
  • Solution: TNB entrusted Origina to manage and support 85% of its systems. The agency maintained all versions of TNB’s IBM software, provided expert guidance on software licensing, and helped TNB migrate away from IBM’s support while ensuring compliance with financial industry regulations. It also produced custom software for products that TNB decided to discontinue in the long term and implemented robust cybersecurity to all systems. 
  • Results: TNB secured over $5.5 million in savings, gained control over its software lifecycle, and increased operational efficiency and security. 

How do I choose the best software maintenance company for my business?

You can choose the best software maintenance company for your business by following these steps: 

  1. Evaluate your needs  
    Check your system reports and user feedback to identify areas of improvement and assess whether your internal team has the capacity to address these shortcomings. 
  2. Define project goals and timeframe 
    Specify your objectives for outsourcing software maintenance and support services, align them with your long-term business goals, and ensure they’re SMART (specific, measurable, achievable, relevant, and time-bound). 
  3. Set your budget 
    Define a feasible budget you can allocate towards the service. Consider investing in a regular retainer fee as software maintenance is an ongoing process that isn’t limited to quick patchwork fixes. 
  4. Research for potential partners 
    Explore agency directories like DesignRush, marketplaces, and publications to find reputable agencies. You can also ask colleagues and business partners for referrals. 
  5. Verify their credibility 
    Look into the agencies’ portfolios, case studies, client testimonials, reviews, certifications, and recognitions. Seek providers that are transparent, provide excellent customer support, and have the necessary experience for your project. 
  6. Review their technical expertise 
    Examine their list of tools, technologies, coding languages and styles, platforms, and specialties, and shortlist software maintenance companies that have experience working on products similar to yours. 
  7. Send a request for proposal (RFP) 
    Attach your project scope, budget, timeline, and technical software details and submit them to the shortlisted agencies. Compare their proposals and costs and select those that offer the most value for money. 
  8. Inquire about their security and quality assurance practices 
    Ask about the quality and security measures they undertake during and after maintenance. Seek agencies that are familiar with the latest practices, like balancing automated and manual testing and enabling multi-factor authentication. 
  9. Assess their cultural fit 
    Evaluate how the agency communicates with your members at every interaction, as this can give insight into their soft skills. Select agencies that are professional, responsive, organized, and aligned with your culture and values. 
  10. Choose your partner 
    Settle a service level agreement, payment terms, goals and KPIs, a detailed timeline, and a contract with your chosen partner. Make sure the contract includes stipulations about data privacy and confidentiality to protect your assets. 

Struggling to find a software maintenance company that meets your specific needs? Explore our Marketplace and send us a project brief. We’ll connect you with five leading agencies according to your requirements, free of charge. 

What questions should I ask software maintenance companies before hiring one?

Before hiring one, you should ask software maintenance companies the following questions to gauge their capabilities and see if they can provide the expertise and tools that you need to upgrade your software: 

Its Relevant Background

  1. Have you worked on a software project similar to mine? 
  2. Can you provide me with case studies and client references so I can learn more about your work? 
  3. What is your longest software maintenance project? How do you ensure its scalability and relevance? 
  4. How does your team stay up to date with the latest development and maintenance tools, tech, and best practices? 

Its Services and Processes 

  1. What tech stack and tools do you use?  
  2. What software maintenance services do you offer?  
  3. How do you address the different aspects of software upkeep? 
  4. What is your process for handling compatibility, interoperability, and third-party dependency issues? 
  5. What is your code review and quality assurance process? 
  6. Can you walk me through your data backup and migration process? 
  7. How do you formulate a disaster recovery plan? 
  8. How receptive are you to user feedback and evolving project scope?  
  9. Where is your team based? Can they work during my office hours? 

Related to Your Project 

  1. Who will be on my team? What are their credentials? 
  2. How will you communicate the project’s progress?  
  3. Will your updates and maintenance procedures affect the end users and disrupt their daily usage? 
  4. Who will own the intellectual property rights? 
  5. Will you provide me with detailed documentation of the software maintenance and development? 
  6. What security and privacy measures will you undertake to safeguard my product from cyber threats and attacks?  

What are the best software maintenance companies in the US?

The best software maintenance companies in the US are: 

  1. Essential Designs 
    • 4.9 stars on DesignRush (34 reviews) 
    • 5.0 stars on Google (30 reviews) 
    • Top clients: Honeywell, BMW, Corona, Toyota 
  2. ELEKS 
    • 4.9 stars on DesignRush (27 reviews) 
    • 4.7 stars on Google (561 reviews) 
    • Top clients: TAIT, AVG, Autodesk, States of Jersey 
  3. UTF Labs 
    • 4.0 stars on Google (11 reviews) 
    • Top clients: Smart Vaults, AgriLive, TickrMeter, Petception 
  4. InterSoft Associates 
    • 4.7 stars on Google (3 reviews) 
    • Top clients: Pearson Education, Penguin Random House, Simon & Schuster, Morgan Stanley 
  5. Origina 
    • 5.0 stars on Google (1 review) 
    • Top clients: Capital One, Toyota, T-Mobile, Canon