Explore leading software testing companies that launch high-performing products, detect bugs early, improve stability, and ensure every feature works correctly across devices and environments. For teams focused on the US market, we also highlight trusted partners with region-specific expertise, including top US-based software testing companies.

Best Software Testing Firms

1,329 Companies-Rankings updated: October 26, 2026

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.

  • Precise Engineering. Here.

    At LKICORP®, we provide expert engineering services to clients across a range of industries. Our team of skilled engineers has experience in mechanical, electrical, and environmental engineering, among others. We work closely with our clients to understand their unique needs and develop customized solutions...

    Top Services:

    • Mobile App Development
    • Software Testing
    • VR/AR
    • Blockchain
    • Software Development
    • Show more
    Location
    Pittsburgh, Pennsylvania
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $300/hr
    Minimal Budget
    $50,000 & Up
  • Qualified personnel rules!

    We are a joint venture of international entrepreneurs and developers. We focus on providing the high level of software development services to our clients that match our German standards. It always results in a very strong, maintainable and reliable software and complete satisfaction of the clients.The...

    Top Services:

    • Blockchain
    • Web Development
    • Software Testing
    • Mobile App Development
    • IoT
    • Show more
    Location
    Bad Nenndorf, Germany
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    3 Projects Listed
  • Tech too complex? We keep it simple.

    IT teams and business leaders are often at odds. This is in large part because technologists focus on technology rather than the underlying business issue. This company was founded to bridge that gap and to allow business owners the ability to fully leverage their tech stack. We offer near shore resources...

    Top Services:

    • Managed Services
    • IT Services
    • DevOps Consulting
    • Staff Augmentation
    • AI Development
    • Show more
    Location
    Bellingham, Washington
    Number of Employees
    100 - 249
    Average Hourly Rate
    $80/hr
    Minimal Budget
    $50,000 & Up
  • We create solutions that work on the result of your projects.

    PNN Soft is a trusted technology partner. We provide outsourcing and offshore software development services for business from different industries. We provide full-cycle development services, and we are expertise in custom development of software, mobile, web app, IoT, cloud, and PWA solutions...

    Top Services:

    • Web Design
    • eCommerce Development
    • Software Development
    • Mobile App Development
    • IoT
    • Show more
    Location
    Kyiv, Ukraine
    Number of Employees
    100 - 249
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $50,000 & Up
  • Delivering Scalable Software Products

    EVLabs specializes in software and product development, offering expert guidance across information technology (IT) consulting and digital transformation solutions. The agency's people-centric approach ensures seamless integration and consistent results, driven by passionate developers who prioritize trust...

    Top Services:

    • Software Testing
    • Software Development
    Location
    Plovdiv, Bulgaria
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $50,000 & Up
  • Stalwart solutions for peak results.

    We are UniRidge a solution agency that solves business challenges with technology. We create innovative software to help our clients become industry leaders...

    Top Services:

    • Staff Augmentation
    • DevOps Consulting
    • AI Development
    • Software Development
    • Web Design
    • Show more
    Location
    Ottawa, Canada
    Number of Employees
    50 - 99
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    4 Projects Listed
  • We create tech but speak human.

    From enterprise software solutions and innovative custom maps featuring intuitive wayfinding, to cutting-edge AR and VR experiences, we specialise in crafting transformative technology...

    Top Services:

    • Digital Services
    • Digital Strategy
    • UI/UX Design
    • Web Development
    • Software Testing
    • Show more
    Location
    Sydney, Australia
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $50,000 & Up
  • Sketch Development Services

    VerifiedVerified by the DesignRush team for authenticity and credibility.
    Build it. Run it. Own it.

    We embed development teams to build the right AI-enabled custom software, and equip your team to run it...

    Top Services:

    • Software Development
    • Cloud Consulting
    • UI/UX Design
    • eCommerce Development
    • DevOps Consulting
    • Show more
    Location
    St. Louis, Missouri
    Number of Employees
    Under 49
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    8 Projects Listed
  • We Code Success

    Directio is a global tech partner that brings together people, processes, and technology to code successnot just by building software, but by solving todays challenges and preparing businesses for whats next. With a unique blend of consulting, tailored development, and flexible collaboration models, we...

    Top Services:

    • Software Development
    • Software Testing
    • DevOps Consulting
    • IT Services
    • IT Compliance Solution
    • Show more
    Location
    Warsaw, Poland
    Number of Employees
    100 - 249
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $50,000 & Up
  • AI-first custom software and IT services for enterprise and government

    AI-first custom software, AI and IT services firm in McLean, VA and North Bethesda, MD, serving enterprise and government. SBA-certified EDWOSB and WOSB, CAGE 9RX92. A senior Sthenos team is accountable on every engagement, and we build a free clickable prototype before you commit...

    Top Services:

    • Software Development
    • AI Development
    • Staff Augmentation
    • Mobile App Development
    • Cloud Consulting
    • Show more
    Location
    McLean, Virginia
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    23 Projects Listed
  • We Deliver Promises

    Enterprises with AI, Data & Digital EngineeringGEGNAT is a global technology consulting and software engineering company specializing in Artificial Intelligence, Data Engineering, Master Data Management (MDM), Cloud Platforms, and Enterprise Digital Transformation...

    Top Services:

    • Web Development
    • eCommerce Development
    • SEO
    • AI Development
    • Mobile App Development
    • Show more
    Location
    Albuquerque, New Mexico
    Number of Employees
    100 - 249
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $50,000 & Up
  • More Than Code We Build Trust Through Craft & Commitment

    Engineered with integrity. Backed by mentorship. Delivered with care. BTS transforms ideas into scalable, secure, and impactful digital products that deliver long-term value...

    Top Services:

    • Software Development
    • AI Development
    • Big Data Analytics
    • Mobile App Development
    • UI/UX Design
    • Show more
    Location
    San Francisco, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    11 Projects Listed
  • End-to-End Engineering Expertise

    Building and scaling digital products for enterprises across Scandinavia (Sweden, Norway, Denmark) & Europe with expert engineering and IFS services and consulting...

    Top Services:

    • Software Development
    • Software Testing
    • AI Development
    • DevOps Consulting
    • Cloud Consulting
    • Show more
    Location
    Colombo, Sri Lanka
    Number of Employees
    250 - 499
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $50,000 & Up
  • Building Intelligent Digital Solutions That Drive Business Growth

    Miami-based AI development and custom software company building emotionally intelligent AI products, automation systems, SaaS platforms, MVPs, and digital products for business growth...

    Top Services:

    • Web Design
    • eCommerce Development
    • Web Development
    • WordPress Website Design
    • AI Development
    • Show more
    Location
    Miami Beach, Florida
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    1 Project Listed
  • AI systems that hold up in production

    Production AI systems for teams that need practical software, not AI theater: LLM apps, private knowledge systems, tool-using agents, predictive analytics, dashboards, evaluation, and implementation from strategy through launch...

    Top Services:

    • AI Development
    • Software Development
    • Software Testing
    • Mobile App Development
    • Big Data Analytics
    • Show more
    Location
    Huntington Beach, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $50,000 & Up
  • Yes We Care

    NEWTEL is a premier BPO provider delivering exceptional omnichannel call center, live chat, and social media support. We combine elite customer service with advanced content moderation to secure and scale your digital brand 24/7...

    Top Services:

    • BPO
    • Call Centers
    • Software Testing
    • Customer Support
    • HR Outsourcing
    • Show more
    Location
    Amman, Jordan
    Number of Employees
    500 - 999
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $50,000 & Up
  • Embedded Electronics Product Design & Development Services

    Alpha ICT designs and develops embedded electronics products for OEMs worldwide hardware, firmware, IoT, and software under one roof. 100+ engineers, 500K+ field-deployed products, serving HVAC, lab instruments, and industrial device makers since 2014...

    Top Services:

    • Product Design
    • Engineering
    • Customer Support
    • IoT
    • Mobile App Development
    • Show more
    Location
    Pune, India
    Number of Employees
    100 - 249
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $50,000 & Up
  • We Build Digital Products

    QTIM is a digital product development company that designs and builds complex, high-load web platforms, mobile applications, SaaS products, and AI-powered solutions for businesses worldwide. Ranked among Russia's leading development companies, QTIM has successfully delivered more than 280 projects across...

    Top Services:

    • Web Design
    • Web Development
    • Mobile App Development
    • Design Services
    • Software Testing
    • Show more
    Location
    Tula, Russia
    Number of Employees
    50 - 99
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    8 Projects Listed
  • Modotech's ISi Helps Small & Mid-Tier P&C Carriers and MGAs Scale, Succeed & Sustain

    ISi PAS is built and serviced by insurance professionals for insurance professionals...

    Top Services:

    • UI/UX Design
    • IoT
    • AI Development
    • Software Testing
    • Mobile App Development
    • Show more
    Location
    Media, Pennsylvania
    Number of Employees
    50 - 99
    Minimal Budget
    $50,000 & Up
  • Challenges Accepted. Solutions Delivered.

    Sigma Design integrates design, engineering, and manufacturing capabilities under one roof. That co-location enables rapid prototyping, rigorous testing, and quality assurance in one place, lets us own a significant portion of the supply chain internally, and produces quick feedback loops and streamlined...

    Top Services:

    • Design Services
    • Product Design
    • Wearables
    • IoT
    • Software Testing
    • Show more
    Location
    Camas, Washington
    Number of Employees
    250 - 499
    Minimal Budget
    $50,000 & Up
  • 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
  • Product Design & Engineering for Banks, Fintechs, and Enterprise Platforms

    Alty designs and builds digital products for companies where complexity is high, and decisions must withstand scale.For 16+ years, weve helped fintech, banking, and product-led organizations turn complex digital systems into scalable products used by millions...

    Top Services:

    • Mobile App Development
    • Design Services
    • Software Development
    • Web Design
    • UI/UX Design
    • Show more
    Location
    Cascais, Portugal
    Number of Employees
    50 - 99
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    22 Projects Listed
  • AdTech Engineering Teams & Staff Augmentation

    Geomotiv is an AdTech-focused technology company providing dedicated teams, IT staff augmentation, and custom development services for businesses building and scaling digital platforms...

    Top Services:

    • Software Development
    • Web Development
    • Mobile App Development
    • IoT
    • Software Testing
    • Show more
    Location
    Alexandria, Virginia
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    11 Projects Listed
  • Commerce Engineering for Complex B2B Systems

    Ecommerce engineering agency for Adobe Commerce (Magento), Shopify Plus, SFCC, Medusa and Shopware. B2B portals, ERP integration (SAP, NetSuite, Dynamics), replatforming, rescue of failing builds, team extension. Adobe Commerce Silver, Hyvä Bronze Partner. Est. 2009, 200+ engineers, Europe and US...

    Top Services:

    • eCommerce Development
    • Web Development
    • Mobile App Development
    • Software Testing
    • Cloud Consulting
    • Show more
    Location
    Tallinn, Estonia
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    20 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
  • Engineering peace of mind

    At Vention, unparalleled customer care isnt just a promise its our mission. We blend personalized experience, unwavering attention to detail, and a genuine passion for your business, ensuring that every aspect of our collaboration is tailored to your success...

    Top Services:

    • Software Development
    • Staff Augmentation
    • Mobile App Development
    • Software Testing
    • Web Development
    • Show more
    Location
    New York City, New York
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    15 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
  • AI is easy. Systems are hard. We build systems.

    AI is easy. Systems are hard. We build systems...

    Top Services:

    • Software Development
    • AI Development
    • Staff Augmentation
    • Cloud Consulting
    • Software Testing
    • Show more
    Location
    Vilnius, Lithuania
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    20 Projects Listed
  • Your Partners in Success.

    Quest Global Technologies is a global leader in development & consultation of cutting-edge Blockchain, Metaverse, AR/VR, QA, Automation, Salesforce & Web3 advancements...

    Top Services:

    • Blockchain
    • AI Development
    • Digital Marketing
    • IT Services
    • Software Testing
    • Show more
    Location
    Indore, India
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    6 Projects Listed
  • FinTech Apps Development

    Itexus is a fintech software development company delivering enterprise-grade software solutions for both the traditional financial services industry and disruptive fintech startups. The company builds secure, compliant, high-load platforms across Digital Banking, Stock Trading, Investment Management, Crypto...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • Software Testing
    • AI Development
    • Show more
    Location
    Dover, Delaware
    Number of Employees
    100 - 249
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    18 Projects Listed
  • Strategize. Develop. Deliver.

    Your business faces unique challenges. Let's work together to create a custom mobile app or web solution to meet those challenges head-on...

    Top Services:

    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • IoT
    • AI Development
    • Show more
    Location
    Nashua, New Hampshire
    Number of Employees
    250 - 499
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    8 Projects Listed
  • Nearshore Software Development Services

    Clear your backlog and ship products you're proud of faster with our nearshore software development resources. We provides highly skilled, team-based resources to companies that need tech talent fast...

    Top Services:

    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • Web Development
    • eCommerce Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    8 Projects Listed
  • Experts at Your Service

    Alt Digital Technologies is a B2B service provider servicing end to end development, DevOps, Testing and e-commerce solutions for your business. We work efficiently in ATG, Java, React, Salesforce, WordPress and majorly all technologies...

    Top Services:

    • Web Development
    • eCommerce Development
    • Mobile App Development
    • Software Development
    • Software Testing
    • Show more
    Location
    Florida City, Florida
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    8 Projects Listed
  • Digital Consulting That Drives Business Innovation

    Robosoft Technologies is an experience engineering company trusted by large global enterprises, ambitious startups, and mid-size companies worldwide. Our mission is to simplify every aspect of digital life, from utility services to entertainment and productivity at work...

    Top Services:

    • Mobile App Development
    • UI/UX Design
    • Web Development
    • Software Testing
    • Software Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    16 Projects Listed
  • Accelerate Innovation With AI-Driven Development

    JumpGrowth is a premier AI-led product engineering studio headquartered in Dallas, Texas. JumpGrowth specializes in building scalable, AI-powered software applications and products tailored for tech startups and enterprise innovation teams...

    Top Services:

    • Mobile App Development
    • Web Development
    • AI Development
    • Software Testing
    • Software Development
    • Show more
    Location
    Richardson, Texas
    Number of Employees
    100 - 249
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    6 Projects Listed
  • Trusted IT Partner for SMBs & Enterprises Since 2001 | Dedicated Teams | Industry-Specific Solutions

    Altoros is a 350+ person strong IT consulting and development group. For over 20 years, we've been assisting Global 2000 organizations in getting software products to market faster and reducing the cost of R&D experiments to enable stable business growth...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Design
    • Web Development
    • Staff Augmentation
    • Show more
    Location
    Pleasanton, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    12 Projects Listed
  • SEEDIUM builds & scales web/mobile products globally: full-cycle development & team augmentation

    Seedium provides full-cycle development and team augmentation services for startups and SMBs around the world. We focus on progressive mobile & web application development, marketplaces, serverless and microservices solutions, high-load projects, and SaaS platforms...

    Top Services:

    • Software Development
    • Mobile App Development
    • AI Development
    • Web Design
    • Staff Augmentation
    • Show more
    Location
    Tallinn, Estonia
    Number of Employees
    Under 49
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    8 Projects Listed
  • Innovation Technology Solution.

    Desun Technology Pvt. Ltd. is a leading software development company in Kolkata, specializing in comprehensive IT services, including web development and mobile app development. Our cutting-edge technology solutions empower businesses to thrive in the digital era. Elevate your business with Desun Technology...

    Top Services:

    • Web Development
    • Digital Services
    • Branding
    • eCommerce Development
    • Mobile App Development
    • Show more
    Location
    Kolkata, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $15/hr
    Minimal Budget
    $25,000 - $50,000
  • Enabling Your Digital and AI Transformation

    ZAPTA Technologies is a global technology partner helping startups and SMEs build, scale, and modernize software products through digital and AI innovation. We deliver secure, performance-driven platforms designed to grow with the business...

    Top Services:

    • Software Development
    • Web Design
    • Web Development
    • Mobile App Development
    • Software Testing
    • Show more
    Location
    Austin, Texas
    Number of Employees
    100 - 249
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    8 Projects Listed
  • Powering the IoT Revolution

    CitrusDev is a team of experts with a general focus on the Internet of Things (IoT) project development. Our team's key points of interest are Smart Home, Smart City, Smart Farm, Automotive, Healthcare, and Indoor navigation domains. We cover the Hi-tech, Retail, Fintech, and Education industries as well...

    Top Services:

    • IoT
    • Web Development
    • Mobile App Development
    • Wearables
    • WordPress Website Design
    • Show more
    Location
    Kyiv, Ukraine
    Number of Employees
    Under 49
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    7 Projects Listed
  • Your Innovation Partner

    Singular is a specialized software development company that thrives on agile methodologies. We excel at leveraging Next Gen technologies, such as Flutter & FlutterFLow, to craft dynamic platforms that are remarkably adaptable, user-friendly, and high-performing...

    Top Services:

    • Software Development
    • Web Design
    • eCommerce Development
    • Web Development
    • UI/UX Design
    • Show more
    Location
    Miami, Florida
    Number of Employees
    50 - 99
    Average Hourly Rate
    $65/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    13 Projects Listed
  • Designing Products That Captivate, Innovate & Elevate.

    Detekt Design Group is a leading product design agency in Austin, Texas. With over 20 years of experience, our team of engineers and designers specializes in bringing concepts to life. From electronics to embedded systems, we have successfully launched products in various sectors, including life sciences and...

    Top Services:

    • Product Design
    • Branding
    • Software Development
    • Software Testing
    • IoT
    • Show more
    Location
    Austin, Texas
    Number of Employees
    Under 49
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    15 Projects Listed
  • We are about skilled and passionate software engineers solving their customers' problems with tech

    We develop custom software systems perfectly tailored to the needs of your company. We can take your most significant competitive advantage ideas and turn them into robust and flexible software that's easy to use and to adapt to new ideas in the future...

    Top Services:

    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • IT Services
    • Software Testing
    • Show more
    Location
    Sibiu, Romania
    Number of Employees
    Under 49
    Average Hourly Rate
    $48/hr
    Minimal Budget
    $25,000 - $50,000
  • You Dream It - We Deliver It

    CIDT builds blockchain, Web3, and SaaS products from concept to launch. We combine startup agility with enterprise - grade engineering to deliver secure, scalable, and transparent solutions fast and within budget...

    Top Services:

    • Blockchain
    • Software Development
    • Mobile App Development
    • UI/UX Design
    • AI Development
    • Show more
    Location
    Northbrook, Illinois
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    3 Projects Listed
  • Award Winning Miami Based App Development

    We are an Award-Winning app and software development agency based in Miami FL. We work with clients nation-wide to cut their IT expenditure, provide custom, tailor-made software solutions, and help scale their organization through progressive technology...

    Top Services:

    • Mobile App Development
    • Web Development
    • Software Testing
    • UI/UX Design
    • Software Development
    • Show more
    Location
    Miami, Florida
    Number of Employees
    100 - 249
    Minimal Budget
    $25,000 - $50,000
  • Developing Complex Medical Solutions for Smart Ideas

    Evenset is a Toronto-based mobile and web application development agency for the HealthTech and MedTech industry. As a young and dynamic firm, we have experienced an impressive growth rate, and have established a track record among our clients for being reliable, responsive, and committed to delivering the...

    Top Services:

    • Software Development
    • Mobile App Development
    • AI Development
    • Software Testing
    • Show more
    Location
    Toronto, Canada
    Number of Employees
    Under 49
    Average Hourly Rate
    $130/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    3 Projects Listed
  • Mobile & Web Software Dev Team

    Kernelics is a boutique web and mobile software development firmfor startups and tech companies...

    Top Services:

    • Mobile App Development
    • Staff Augmentation
    • Product Design
    • Software Development
    • eCommerce Development
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    18 Projects Listed
  • Your Full Stack Technology Partner

    Emergent Software is a full-stack technology solution provider specializing in the Microsoft ecosystem. We partner with our clients to modernize business operations with Microsoft-focused cloud transformation, custom software development, and data engineering...

    Top Services:

    • Web Design
    • Web Development
    • Mobile App Development
    • Software Development
    • Cloud Consulting
    • Show more
    Location
    Minneapolis, Minnesota
    Number of Employees
    100 - 249
    Average Hourly Rate
    $190/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    9 Projects Listed
  • Product Innovation at It's Best!

    Accelerating Intelligent Product Innovation in HealthcareLangate is a leading HealthTech software development company with 20+ years of experience helping healthcare organizations build intelligent, secure, and compliant digital products.We specialize in developing HIPAA-compliant SaaS platforms...

    Top Services:

    • Mobile App Development
    • Software Testing
    • Software Development
    • IT Services
    • Big Data Analytics
    • Show more
    Location
    Jersey City, New Jersey
    Number of Employees
    100 - 249
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    10 Projects Listed
  • The Right Software Can Change Everything

    Atomic Object is a top-rated custom software design and development consultancy. Our co-located, U.S.-based team works with executives to improve their bottom line by delivering new products, enhancing existing products, modernizing legacy products, and integrating AI into their software systems...

    Top Services:

    • Mobile App Development
    • AI Development
    • Software Development
    • Web Development
    • Product Design
    • Show more
    Location
    Grand Rapids, Michigan
    Number of Employees
    100 - 249
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    1 Project 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
1,329

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

See how rankings and monetization work.

Frequently Asked Questions About Software Testing Companies

What services do software testing firms provide?

Software testing companies provide different testing services to identify errors, security risks, performance issues, and how the software behaves in real-life situations and across devices. As part of their software testing service, they also check if each feature works as expected, fix bugs, make improvements, and make sure new software development updates don’t break existing functions, so the software quality remains stable. 

Core services include: 

  • Functional testing  
  • Performance testing  
  • Security testing  
  • Usability testing  
  • Regression testing   
  • Automation testing  
  • Accessibility testing    
  • Mobile app testing  
  • API testing  
  • Compatibility testing across devices/browsers  
  • Compliance testing  
  • Testing with artificial intelligence (AI) tools
  • QA audit 

How much do software testing services cost?

Hourly rates for QA testing range from $25 to $200+. The final cost is determined based on the size of the software or application, its complexity, required testing type, tech stack (custom-built and older legacy systems cost more), and niche.  

The rate will also depend on the seniority of the software tester. Across the United States, junior quality assurance (QA) tester may charge $70 to $110 per hour, while the rate for a senior QA mentor and automation engineer can range from $130 to $200 per hour.   

Special software testing services such as QA audit goes from $5,000 to $25,000. 

How can businesses know what type of software testing do they need?

Businesses can determine what type of testing solutions they need based on the potential impact of failures and the likelihood of defects. Namely, if they encounter:  

  • Core functionality issues: Use functional testing to verify features work as expected 
  • Unstable code or new features: Use unit testing for individual components and integration testing for modules working together 
  • Poor system stability after updates: Seek regression testing to make sure new changes didn't break existing features 
  • Performance and load issues: Use performance and load testing to evaluate speed and scalability 
  • Security issues: Security and penetration testing are commonly used across apps handling sensitive user data 
  • Hard-to-navigate user experience (UX): Pursue usability testing to determine how intuitive the application is for end users 
  • Low compatibility across devices: Compatibility testing can evaluate how good the app works on different browsers, devices, and OS versions 

There is also the option to choose between manual and automated testing.  

Is automated testing more expensive than manual testing?

As an investment, automated testing is pricier than manual testing but offers a lower cost-per-test over time as it can run the same scripts repeatedly, without human intervention. Conversely, manual testing entails lower upfront fee, but its cost grows linearly as the project grows, as every test cycle requires paid hours from QA testers.  

So, for short-term projects or ones with shifting requirements, manual testing is considered a more economical option, whereas for maintenance and regression cycles, automated testing grants better return on investment. 

The main distinction between these methodologies is that manual testing relies on human observation and interaction to identify defects, whereas automated testing uses software scripts to compare outcomes against predicted results.  

Manual testing is best suited for exploratory testing, usability assessments, ad-hoc bug hunting, and minor hotfix verifications where script development would be inefficient. Automated testing, on the other hand, is primarily used for regression testing to make sure the new code does not break existing features. 

How do businesses measure the effectiveness of software testing?

The effectiveness of the software testing is measured via: 

  • Code coverage: The percentage of the code that has been tested 
  • Defect density: The number of defects found per unit of code 
  • Test case effectiveness: The percentage of test cases that identify defects; helps prune redundant and ineffective tests 
  • Time to detect and fix defects: The time it takes to identify and fix software defects and software bugs 
  • Defect leakage: The number of bugs that "escaped" to production versus those caught during the testing phase Â