Our directory is designed to help you find the right software testing company in the USA, based on five ranking criteria, expert review, and 1,300 verified client reviews.

Discover the Best Software Testing Companies in the US

13 Companies - Rankings updated: September 06, 2026

DesignRush evaluates software testing agencies for QA expertise, testing processes, and verified client reviews to support confident decision-making. Some placements may be paid partnerships.

United States × Social Networks × Sort by: Top Rated × Clear Filters
  • You Dream IT - We Dev IT

    𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 is one of the main areas of DevIT work. Our team has extensive knowledge of various technologies. This allows us to create fast, flexible, responsive, attractive, and user-friendly stores and Shopify apps...

    Top Services:

    • eCommerce Development
    • Web Development
    • Software Development
    • IT Services
    • Web Design
    • Show more
    Location
    St. Petersburg, Florida
    Number of Employees
    100 - 249
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    29 Projects Listed

    DevIT Services

    • eCommerce Development
    • Web Development
    • Software Development
    • IT Services
    • Web Design
    • UI/UX Design
    • Software Testing
    • IT Compliance Solution
    • WordPress Website Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • AfterSell by Rokt | Shopify App
    • Karstgoods | Website & WebApp
    • Heliguy | Website & WebApp
    • UpsellPlus Checkout Upsells | Shopify App
    • UpCart - Slide Cart Drawer | Shopify App
    • OutSell Cross Sell & Upsell | Shopify App
    • Antla | Shopify App
    • ConvertMax PostPurchase Upsell | Shopify App
    • Stored microsites on demand | Shopify App
    • Push Down & Hide Out Of Stock | Shopify App
    Data sourced from the agency's DesignRush profile

    DevIT Reviews & Testimonials

    • Denis Khorolsky
      Denis Khorolsky COO at WiserBrand
      5.0

      Applications Review from Denis Khorolsky

      We worked with DevIT on a Shopify app for one of our ecommerce clients. The app handled product personalization, pricing rules, and personalized order data, while our team worked on the main Shopify platform and customer experience. The teams worked well together, and the client was able to launch the new feature without changing the existing store.

    • Oleksandr Romanov
      Oleksandr Romanov Founder & CEO at Idea Team
      5.0

      Small Businesses Website Development Review from Oleksandr Romanov

      We worked together with DevIT Group on a financial operations platform for a shared client. Our team focused more on the core product and Python backend, while DevIT handled the infrastructure side using Node.js services built with NestJS and Fastify. They worked on integrations, payment flows, internal APIs, notifications, and async processing between different services. A lot of the project depended on things working reliably in the background, and their part stayed stable even as new integrations were added later. The collaboration felt pretty easy overall. Most discussions were direct and technical, without too much unnecessary process around them.

    • Viktoriia Rekonvald
      Viktoriia Rekonvald HR & Strategic Partnerships Manager at Stubbs
      5.0

      Small Businesses Website Development Review from Viktoriia Rekonvald

      We worked alongside DevIT Group on a fintech platform for a shared client. Our team handled the blockchain layer, while DevIT was responsible for the web application built on a MERN stack. They took care of the full application layer, including the React frontend and Node.js backend. Their part covered wallet connection flows, transaction tracking, and syncing on-chain data with the app. The way they handled API logic and off-chain data storage kept the system predictable even when blockchain confirmations were delayed.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Chop Dawg

    Verified Verified by the DesignRush team for authenticity and credibility. Award Winner Recipient of a Best Design Award for outstanding work.

    Meet The Partner Behind Your App's Success | Make It App'n!

    Meet your award-winning app development team, dedicated to turning your vision into scalable and profitable digital apps and software...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • eCommerce Development
    • WordPress Website Design
    • Show more
    Location
    Philadelphia, Pennsylvania
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    52 Projects Listed

    Chop Dawg Services

    • Mobile App Development
    • Software Development
    • Web Development
    • eCommerce Development
    • WordPress Website Design
    • UI/UX Design
    • Software Testing
    • Wearables
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Alpha Paw
    • Big Brothers Big Sisters
    • Choice Home Warranty
    • City of Peachtree Corners, Georgia
    • City of Philadelphia, Pennsylvania
    • City of Springboro, Ohio
    • CRBO
    • FlynnO'Hara
    • Hilton
    • Innovative
    Data sourced from the agency's DesignRush profile

    Chop Dawg Reviews & Testimonials

    • Malik Boyd
      Malik Boyd Co-Founder at GyftMasters
      5.0

      Mobile App Development Review from Malik Boyd

      Chop Dawg helped us turn our gifting app concept into a working prototype, handling wireframes, UI design, coding, data storage, and automation from scratch. Their team has been transparent, proactive, and highly responsive throughout the process. They provide clear schedules, flag issues early, and keep us informed at every stage. We’ve been very happy with the prototype so far and are excited to move into full iOS and Android development.

    • Anonymous
      Anonymous Founder at Cuddlebids
      5.0

      Mobile App Development Review from Anonymous

      Chop Dawg took our iOS app from concept to launch, handling design, development, AWS, and App Store requirements. Their team was responsive, practical, and highly supportive throughout the process. They also stayed involved after launch with updates and fixes, and even helped promote the app through their network. Their support contributed to strong early growth and helped position the company for a later acquisition.

    • Anonymous
      Anonymous Executive at Undisclosed
      5.0

      Web Design Review from Anonymous

      Chop Dawg supported us with UX/UI design for a new fintech web application. They took the time to understand our users, product requirements, features, and overall vision before moving into design. Over a 6 to 7 week engagement, their team shared regular Figma reviews, incorporated feedback quickly, and stayed highly responsive. They finished ahead of schedule with no budget issues, and the internal response to the final designs has been very positive. Their attention to detail, professionalism, and ability to keep the process organized made them very easy to work with.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Digitally Transforming Brands Across the Globe

    Digital Aptech Pvt. Ltd is an ISO 9001 and 27001 Certified Kolkata-based CMMI Level 3 IT Support and Services Company dedicated to delivering high-quality and world-class business IT solutions for start-ups, SMEs, emerging and global brands...

    Top Services:

    • eCommerce Development
    • Web Development
    • Mobile App Development
    • IT Services
    • Web Design
    • Show more
    Location
    Austin, Texas
    Number of Employees
    100 - 249
    Average Hourly Rate
    $20/hr
    Portfolios Count
    11 Projects Listed

    Digital Aptech Services

    • eCommerce Development
    • Web Development
    • Mobile App Development
    • IT Services
    • Web Design
    • Software Development
    • Staff Augmentation
    • Software Testing
    • AI Development
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Black Tiger Marketing Limited
    • S4 Logistics
    • Smile 4
    Data sourced from the agency's DesignRush profile

    Digital Aptech Reviews & Testimonials

    • Catherine Vennat
      Catherine Vennat SVP Global Marketing at Thermacell Repellents, Inc.
      5.0

      Web Design Review from Catherine Vennat

      Digital Aptech redesigned and revamped four websites for a consumer products company. The team developed a new corporate site, enhanced an e-commerce store, redesigned two websites, and conducted a comprehensive audit of the existing site. Digital Aptech created two new websites and designed the updated e-commerce store, significantly improving the overall consumer experience. Their work included a thorough audit, valuable insights, and exceptional design. Digital Aptech demonstrated outstanding project management skills and successfully completed the project within five months.

    • Kelly Anne Kah
      Kelly Anne Kah Solutions Coordinator at Marketplace Homes
      5.0

      Web Development Review from Kelly Anne Kah

      Digital Aptech Pvt. Ltd. successfully developed and designed a comprehensive real estate platform, incorporating post-launch performance metrics. Their in-depth research of industry competitors laid the foundation for a tailored design that met our unique needs. During the design phase, they effectively balanced a variety of requirements to serve both our existing and prospective customers. The project began with an analysis of competitor websites, examining their organizational structures and adapting them to align with our sales and operational processes. The result was a site inspired by leading industry platforms, featuring a home feed where users could explore properties of interest. Additionally, the platform was enhanced with features that allowed current customers to track their properties throughout the sales process. Digital Aptech Pvt. Ltd. also integrated links to our property management portals for seamless navigation. Throughout the project, we collaborated extensively using Figma and Salesforce. They implemented a Multiple Listing Service (MLS) data feed, a critical real estate data solution, and extracted valuable insights from the website to support our sales team. By integrating this data feed and other innovative features, Digital Aptech Pvt. Ltd. significantly increased visitor traffic and conversions on our platform. Their team demonstrated exceptional responsiveness and provided a combination of technical expertise and excellent customer service. Digital Aptech Pvt. Ltd. proved to be a communicative and reliable partner, delivering a robust solution that met and exceeded our expectations.

    • Brian Zielinski
      Brian Zielinski President & Co-Founder at ShapeConnect
      5.0

      Web Development Review from Brian Zielinski

      We partnered with Digital Aptech Pvt. Ltd. to develop a dynamic website for ShapeConnect, and their expertise and commitment exceeded our expectations. ShapeConnect is designed to empower businesses by streamlining the selection of trusted software and service partners in critical areas like accounting, marketing, technology, and human resources. Digital Aptech played a pivotal role in bringing our vision to life. The team demonstrated exceptional skill in crafting a user-friendly and visually engaging platform. They ensured the website was responsive, secure, and seamlessly integrated with the functionalities required to support ShapeConnect's unique three-step process: diagnosing business needs, matching with tailored solutions, and managing collaborations through a secure portal. Their dedication to understanding our objectives, combined with efficient project management, made the entire development process smooth and transparent. Communication was consistent, and they were always ready to address challenges or implement changes promptly. Thanks to Digital Aptech Pvt. Ltd., ShapeConnect now provides an intuitive platform for businesses to confidently connect with solutions that drive growth and innovation. We highly recommend their services to anyone seeking reliable website development expertise.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Software development company that delivers measurable results.

    SparxIT is an AI-driven technology partner delivering intelligent software solutions, AI development, cloud transformation, and digital products. We build scalable platforms powered by AI, ML, and automation for startups and enterprises. Trusted by HP, Suzuki, and Hisense...

    Top Services:

    • AI Development
    • Cybersecurity
    • Web Design
    • Web Development
    • eCommerce Development
    • Show more
    Location
    Walpole, Massachusetts
    Number of Employees
    100 - 249
    Average Hourly Rate
    $30/hr
    Portfolios Count
    35 Projects Listed

    Sparx IT Services

    • AI Development
    • Cybersecurity
    • Web Design
    • Web Development
    • eCommerce Development
    • Mobile App Development
    • Software Development
    • Cloud Consulting
    • DevOps Consulting
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Vedanta
    • Hp
    • Huawei
    • Motorola
    • D-Link
    • Hisense
    • Necco
    • Intel
    Data sourced from the agency's DesignRush profile

    Sparx IT Reviews & Testimonials

    • Tariq Khan
      Tariq Khan Manager at EG- Retail
      5.0

      Mobile App Development Review from Tariq Khan

      Developing the grocery app with SparxIT was a terrific experience for me. The team provided us with regular updates regarding the app, keeping us informed. Their prompt action and extensive technical know-how made the project complete smoothly.

    • Paul Landherr
      Paul Landherr Manager at AusCellardoor
      4.5

      Mobile App Development Review from Paul Landherr

      The company hired Sparx IT to create a mobile app for its premium wine business. It wanted a seamless app that improves the process of buying wine, making it fun and simple for customers to discover and enjoy excellent wines. SparxIT's expertise in MVP development truly impressed the client. The completed MVP for the premium wine business app has gotten overwhelmingly positive feedback from users. (Verified by email)

    • Dylan Brown
      Dylan Brown Manager at www.tchomecare.ca
      5.0

      Mobile App Development Review from Dylan Brown

      The app development is still in progress, and they have provided us with weekly updates on the progress of the app development project. The quality of work is outstanding. We are thoroughly impressed with the team's level of expertise and skill. Overall, we're having an excellent experience working with the SparxIT team and would highly recommend their services to anyone needing mobile app development services. (Verified via email)

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Quality, Experience, Transparency, Results

    Mercury Development offers best in class Software Development, Mobile Apps, UI/UX, QA, ML, Data Science and more. With over 23 years in business, and over 400 employees, Mercury has the experience required to deliver your project on time and on budget...

    Top Services:

    • Mobile App Development
    • Software Development
    • UI/UX Design
    • Software Testing
    • Wearables
    • Show more
    Location
    Stuart, Florida
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Portfolios Count
    8 Projects Listed

    Mercury Development Services

    • Mobile App Development
    • Software Development
    • UI/UX Design
    • Software Testing
    • Wearables
    • IoT
    • eCommerce Development
    • Web Development
    • Web Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • HSBC
    • DOW
    • Kensington
    • Symantec
    • Sony
    • Mars
    • Thompson Reuters
    • Grainger
    • HP
    • SAP
    Data sourced from the agency's DesignRush profile

    Mercury Development Reviews & Testimonials

    • Anonymous
      Anonymous Director of Audience Engagement at The Bible Project
      5.0

      Software Development Review from Anonymous

      We started off with some discovery sessions and a beta demo, then went through a few rounds of tweaks where they adjusted both how it worked and how it looked based on what we asked for. The whole build went pretty smooth. Gotta say, Mikhail, the PM, was great to deal with. Super easy to talk to and somehow turned what I wanted into clear technical stuff without me having to overexplain.

    • Anonymous
      Anonymous Project Manager at DGS HomeSource
      5.0

      Mobile App Development Review from Anonymous

      The whole point of this project was to clean up the brand’s online rep, get more good reviews out there, and just boost how we show up online. What stuck with me was how sharp the Mercury team is- they really know their stuff. Anytime I had a question, they had an answer or a fix ready. Super easy to lean on them.

    • Matthew Kulig
      Matthew Kulig Co-Founder & CFO at Aisle411
      5.0

      Software Development Review from Matthew Kulig

      Development provides software integration and mobile app development for turnkey retail platforms, ensuring up-to-date functionality and system cohesion by scaling from 2–10 resources as needed. The team’s precise task breakdowns, affordable price point, and proactive reporting strengthen the partnership.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • 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
    Dover, Delaware
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    24 Projects Listed

    Techstack company Services

    • Mobile App Development
    • Web Development
    • Software Development
    • Web Design
    • AI Development
    • UI/UX Design
    • Software Testing
    • IoT
    • Staff Augmentation
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Corel
    • SkillLab
    • VivaQuant
    • ECNV
    • Gravit
    • MindManager
    • ReviverSoft
    • The Savage Bureau
    • Illiad
    • Exaum Energy
    Data sourced from the agency's DesignRush profile

    Techstack company Reviews & Testimonials

    • Darshan Chordia
      Darshan Chordia Social Media Marketing Manager at Tarini Stoneworks
      5.0

      Software Development Review from Darshan Chordia

      We worked with Techstack to create a digital platform that would simplify how we manage projects, materials, and client interactions. The idea was to make our process more transparent and efficient while keeping the quality and uniqueness of our products at the center. From the beginning, Techstacks team understood our needs clearly. They built a stable, modern system that allowed us to manage workflows, track materials, and visualize designs in real time. Everything worked smoothly across devices, and the new platform handled large amounts of visual data without any performance issues. Communication was easy and professional throughout the project. The team stayed responsive, respected deadlines, and quickly adapted to feedback. We appreciated how they approached the project with both technical precision and creative understanding, making sure the solution supported our way of working. The result made a big difference for us. We now have a reliable, easy-to-use platform that saves time, improves coordination, and helps us deliver better experiences for our clients. Working with Techstack company felt effortless - they were consistent, thoughtful, and committed to getting every detail right.

    • Sidharth Dugar
      Sidharth Dugar Co-Founder at Route One Advisory
      5.0

      Software Development Review from Sidharth Dugar

      We worked with Techstack to develop a digital platform that could support the financial and operational needs of our growing client base. Our vision was to create an integrated web solution that would bring together financial management, client communication, and digital infrastructure into one cohesive system. The goal was to give small and medium-sized businesses the same level of data visibility and workflow efficiency that large enterprises enjoy but through a user-friendly, scalable product. Techstack company quickly understood what we were trying to achieve. They built a modern web application architecture that unified financial analytics, project tracking, and CRM capabilities while ensuring top performance and security. Their team handled everything from backend development to UX optimization. What stood out most was how seamlessly Techstacks team balanced precision with flexibility. We had tight deadlines and evolving priorities, yet they consistently delivered on time without compromising quality. Communication was clear and proactive, we always felt aligned, even as the project evolved. The result was a platform that allowed us to operate more efficiently and deliver a better experience to our clients. It centralized our data, reduced manual processes, and helped us scale faster without adding unnecessary complexity. Techstack brought strong technical expertise and a genuine sense of ownership to the project, turning a challenging concept into a powerful business tool that continues to grow with us.

    • Sri Sharma
      Sri Sharma Owner at NextGrowth Marketing
      5.0

      Web Development Review from Sri Sharma

      When we brought Techstack on board, our analytics subsystem was at a breaking point. Performance issues, data inconsistencies, and outdated architecture were slowing us down and creating friction for both our internal teams and end users. Given the scale of our platform: millions of customer interactions generating terabytes of data daily we needed a partner who could not only fix the flaws but also future-proof the entire system. Techstack company took on the challenge with impressive precision. Their team started with a deep audit that revealed critical weaknesses in our existing infrastructure. From there, they restructured the backend, optimized performance, and built a reliable synchronization flow between our internal tools and third-party CRMs. Techstack introduced a new architecture powered by Amazon Redshift and an asynchronous analytics engine, which dramatically reduced data retrieval times and improved responsiveness across the board. What we appreciated most was how seamlessly they integrated into our process. They communicated clearly, delivered consistently, and made sure every change was fully tested and stable before rollout. The results were: system reliability improved, performance bottlenecks disappeared, and we could finally handle large-scale data processing without worrying about stability. Techstack company combined strong engineering skills with a genuine commitment to understanding our goals. They helped us rebuild confidence in our platforms ability to scale and perform at its best.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Empowering Innovation Through IT Solutions.

    iVelopment delivers cutting-edge IT solutions that drive business success. With a focus on personalized service and innovative technologies, we provide tailored software development, systems integration, and IT staffing to help companies stay ahead in a rapidly evolving digital landscape...

    Top Services:

    • Graphic Design
    • Logo Design
    • Web Design
    • Web Development
    • WordPress Website Design
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Portfolios Count
    4 Projects Listed

    iVelopment, Inc Services

    • Graphic Design
    • Logo Design
    • Web Design
    • Web Development
    • WordPress Website Design
    • eCommerce Development
    • Software Development
    • Software Testing
    • Translation Services
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Google
    • META
    • USTrendy
    • Pesos Hoy
    • Box of Beats
    • The MLS
    • Snap Recordings
    • Iberogram
    • Restec
    • LA Fire Protection
    Data sourced from the agency's DesignRush profile

    iVelopment, Inc Reviews & Testimonials

    • Ana  Carolina
      Ana Carolina Head of HR and Recruitment at YellowIpe
      5.0

      Web Design Review from Ana Carolina

      iVelopment LLC's project management was exceptional. They delivered all milestones on time and kept us informed throughout the development process. Their responsive communication and proactive approach to addressing our needs were truly impressive. They took the time to understand our vision and goals, and their team worked diligently to bring that vision to life.

    • Andriy Moraru
      Andriy Moraru Website Manager at EarnForex
      5.0

      Web Design Review from Andriy Moraru

      iVelopment LLC was a breath of fresh air for our online presence. They listened to our needs, overhauled our website with meticulous care, and significantly enhanced user experience. This talented team is not only skilled but also incredibly responsive and efficient, providing a one-stop shop for all our digital needs. Our business is now thriving with their seamless web solutions!

    • Lee Ellis
      Lee Ellis Director at Tyson Properties South Africa
      5.0

      Software Development Review from Lee Ellis

      Working with iVelopment was a transformative experience for our company, Tyson Properties South Africa. They helped us turn our vision of a customized property management software into reality. Their team took the time to understand our unique challenges and delivered a tailored solution that streamlined our operations and improved client interactions. The project was managed flawlessly, with every milestone met on time. Their responsiveness to our needs was remarkable, and their innovative approach was refreshing. The end result was a sophisticated yet user-friendly platform that has significantly enhanced our operational efficiency. Overall, iVelopment exceeded our expectations, and I highly recommend them for any custom software development needs. Their partnership has undeniably elevated our business!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • The undisputed authority on BLE Bluetooth IoT and AI App Development

    We are the undisputed authority on Bluetooth BLE, IoT, and AI applications. Our Bluetooth and AI applications have proven to be very effective to clients across the United States and Europe. Call us for a free technical consultation and evaluation of your project...

    Top Services:

    • Mobile App Development
    • Web Development
    • Software Development
    • Product Design
    • AI Development
    • Show more
    Location
    Westport, Connecticut
    Number of Employees
    50 - 99
    Portfolios Count
    16 Projects Listed

    Quartus Technology, Inc Services

    • Mobile App Development
    • Web Development
    • Software Development
    • Product Design
    • AI Development
    • eCommerce Development
    • Blockchain
    • Digital Marketing
    • VR/AR
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Avis Budget Group Ireland
    • Thrifty Car Rental Ireland
    • Omega Flex, Inc.
    • Vail Resorts
    • Dasher Lawless
    • SwingU
    • Hertz Ireland
    • Creative Racing
    • Aeropath Aviation
    • Beaver Creek
    Data sourced from the agency's DesignRush profile

    Quartus Technology, Inc Reviews & Testimonials

    • Robert Kriegsman
      Robert Kriegsman IT Consultant at Software Development Company
      5.0

      Translation Services Review from Robert Kriegsman

      Quartus deleoped an enterprise system for me to help track and analyze information on various activities, involvong data ingestion and analysis, then presentation. Quartus Technology, Inc.'s reliability and innovative solutions stood out.

    • Laura Waniuk
      Laura Waniuk Senior Manager, Events and Brand Creative Services at Bad Robot Games
      5.0

      Mobile App Development Review from Laura Waniuk

      During my tenure at Beaver Creek Resort Company I was tasked with building and launching a guest-facing app for the hundreds of thousands of visitors to Beaver Creek Mountain. I worked very closely with Quartus Technology and their team to meet the budget, the timeline and all the required features for the project. The app launched early! It's been an incredible success and the app has continued into phase 2 and 3 with added functions. I highly recommend Quartus Technology if you are in search of a quality app, strong development team and transparent pricing.

    • Chris Caputo, PMP
      Chris Caputo, PMP Director of Project Management at CATIC
      5.0

      Mobile App Development Review from Chris Caputo, PMP

      After looking at multiple vendors to build an app to provide information on municipalities we selected Quartus. The scope included the development of the app (including designs) and integration to a service that our development team created. Quartus was successful. They delivered in a timely, cost-efficient manner and were easy to work with. When we decided to have a second app created, we did not look elsewhere and stayed with Quartus. This app involved the development of a calculator to calculate and email title insurance premiums. Like our first app, Quartus had to develop the designs (they were able to leverage a portion of the work from our first app) and integrate to a different service that our development team created. Once again, Quartus delivered. These apps were for Android and iOS. They are a good partner.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Enterprise AI Solutions | Scalable . Flexible. Sustainable

    Seasia Infotech is a global AI-powered digital engineering company with 25+ years of experience delivering custom software, AI solutions, cloud applications, mobile apps, and enterprise platforms. We help businesses accelerate innovation, improve efficiency, and drive digital transformation...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • AI Development
    • Big Data Analytics
    • Show more
    Location
    Emeryville, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    54 Projects Listed

    Seasia Infotech Services

    • Software Development
    • Mobile App Development
    • Web Development
    • AI Development
    • Big Data Analytics
    • Cloud Consulting
    • Staff Augmentation
    • Cybersecurity
    • IoT
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Adani Group
    • Flipkart
    • Harley-Davidson
    • Microsoft
    • MainStreet Equity Corp
    • HDFC Bank
    • Swaraj
    • Innopharma Education
    • Renault
    • Puda
    Data sourced from the agency's DesignRush profile

    Seasia Infotech Reviews & Testimonials

    • cornelia verden
      cornelia verden Web Developer at Cornelia Verden LLC
      5.0

      eCommerce Development Review from cornelia verden

      This Company is AMAZING, they are very professional. We hired them to build my website, and they did an EXCELLENT job. They continuously communicated with me during the development phase. If you want a beautiful, well-designed, professional website that has optimum functionabilty, You must go with Seasia Infotech. You can always expect excellent quality services from the professionals at Seasia Infotech.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Deploy Dream Applications From Scratch

    Our team of over 200 IT experts and engineers harness the power of contemporary technologies, advanced frameworks, and innovative methodologies to deliver unmatched and top-notch outsourced services from India...

    Top Services:

    • Mobile App Development
    • Web Design
    • eCommerce Development
    • Web Development
    • Software Testing
    • Show more
    Location
    Sunnyvale, California
    Number of Employees
    100 - 249
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed

    ThinkSys Services

    • Mobile App Development
    • Web Design
    • eCommerce Development
    • Web Development
    • Software Testing
    • Software Development
    • AI Development
    • DevOps Consulting
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Match
    • Perion
    • American Greetings
    • Shutterstock
    • Just Pharma
    • Playtika
    • Angies List
    • Allegro
    • Atlas Financial Holdings
    • Delightme
    Data sourced from the agency's DesignRush profile
  • X2 Mobile

    Award Winner Recipient of a Best Design Award for outstanding work.

    Bridge the Gap Between Ideas & Digital Experiences

    Actively identify tech & product opportunities to transform your ideas into engaging and accessible digital experiences. Our clients from Africa, US or EU enjoy great returns such as 2M monthly users or 10k downloads in the first 10 days of launching their app...

    Top Services:

    • Mobile App Development
    • Web Development
    • Software Development
    • Product Design
    • UI/UX Design
    • Show more
    Location
    Wilmington, Delaware
    Number of Employees
    Under 49
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    17 Projects Listed

    X2 Mobile Services

    • Mobile App Development
    • Web Development
    • Software Development
    • Product Design
    • UI/UX Design
    • Software Testing
    • VR/AR
    • AI Development
    • Market Research
    • Business Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Red Sea International Film Festival
    • ClassLink
    • Ubongo Learning
    • Kinnect
    • KiteSpot
    • Collaborative Classroom
    • Verity
    • VCash
    • Aslan Interactive, Inc.
    • Safelet BV
    Data sourced from the agency's DesignRush profile
  • Passionate Developers

    The Demski Group is a full-stack mobile and web development firm that creates beautiful, engaging, state-of-the-art applications and designs to help businesses grow and succeed...

    Top Services:

    • Mobile App Development
    • Software Development
    • IoT
    • AI Development
    • VR/AR
    • Show more
    Location
    Olean, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $80/hr
    Minimal Budget
    $1,000 - $10,000

    The Demski Group Services

    • Mobile App Development
    • Software Development
    • IoT
    • AI Development
    • VR/AR
    • Web Development
    • UI/UX Design
    • Software Testing
    • Staff Augmentation
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • SEEN Dating
    Data sourced from the agency's DesignRush profile

    The Demski Group Reviews & Testimonials

    • Jonathan Adam Tucker
      Jonathan Adam Tucker Review from Google
      5.0

      Jonathan Adam Tucker's Review Sourced from Google

      I have been working with The Demski Group for the last two years. The Demski Group recently completed a comprehensive upgrade to a client website. This upgrade involved multiple apps and custom code to accomplish. The Demski Group has the expertise and open communication required to execute a business owners or marketers vision for a website.

    • Laurel Barnes
      Laurel Barnes Review from Google
      5.0

      Laurel Barnes's Review Sourced from Google

      I had a great experience working with Andrew on a client project involving an Angular website. He jumped in to make some important updates and got the contact form up and running smoothly. Andrew was extremely responsive, knowledgeable, and easy to work with throughout the entire process. Highly recommend!

    • Mickey Rowe
      Mickey Rowe Review from Google
      5.0

      Mickey Rowe's Review Sourced from Google

      We spoke to a few different companies as we set out to find someone to create a website/database application to augment our desktop software. We chose The Demski Group in part because we found them very easy to talk to in our interview. That first impression stuck as we have a great relationship with them now. We are currently planning to farm out another project and are not even considering looking for anyone else to take it on.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Transforming Ideas Into Robust Online Experiences

    In 2016, we founded Web Design Glory, a company specializing in website design projects. Over time, our expertise expanded to include app design and development projects, which we successfully delivered alongside our website projects. Building on this success, in 2018, we established a subsidiary venture "App...

    Top Services:

    • Software Development
    • Mobile App Development
    • VR/AR
    • IoT
    • Software Testing
    • Show more
    Location
    Austin, Texas
    Number of Employees
    Under 49
    Average Hourly Rate
    $120/hr
    Minimal Budget
    $10,000 - $25,000

    App Design Glory Services

    • Software Development
    • Mobile App Development
    • VR/AR
    • IoT
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • SOCKET-Social Media
    • CoMesh
    • Easytrip Services Corporation
    Data sourced from the agency's DesignRush profile

FAQs for Software Testing Companies

What services does a software testing company provide for your business in the United States?

They provide a comprehensive range of services designed to validate and improve software quality through systematic evaluation and advanced tooling. 

Core testing services include: 

  • Quality assurance and testing strategy: Audits software and defines testing scope, priorities, coverage, approach, and reporting. 
  • Functional testing: Verifies that software features work according to specified business and functional requirements. 
  • Regression testing: Detects unintended issues introduced by system changes and releases.  
  • Performance and load testing: Measures the application’s reliability and responsiveness during peak usage. 
  • Security testing: Identifies and resolves security vulnerabilities and tests against compliance and governance requirements. 
  • Usability testing: Assesses user experience, interface intuitiveness, and overall accessibility of the solution. 
  • Integration and API testing: Validates how different system components and third-party services work together. 

In addition to these services, software testing companies implement a mix of manual (often for exploratory and user experience-focused scenarios) and automated (repeatable checks throughout the development cycle for speed and consistency) testing models.  

How much does software testing cost?

Software testing costs about 15%-25% of the development costs or 23% of the IT budget. In terms of hourly rates, US software testing companies charge an average of $100-$250 per hour, with more complex systems or specialized tests going beyond $300/hour. 

The final rate will depend on solution complexity, testing coverage, quality requirements, project timeline, and current technical debt. 

Here’s how much software testing costs as a percentage of the software development budget: 

  • Critical systems and highly regulated industries: 40%-50% 
  • Enterprise applications: 25%-35% 
  • Consumer-facing applications: 15%-25% 
  • Mobile applications: 20%-30% 

In practice, basic one-time testing projects, such as a website penetration test, cost approximately $5,000-$10,000.  

On the other hand, continuously evolving software solutions that require regular comprehensive testing can fetch between $20,000 and $70,000+ per month. 

Are there any additional costs to consider when working with US software testing agencies?

Beyond project scope, complexity, and timeline, these are additional costs to consider when working with software testing agencies in the USA: 

  • Tooling and platform fees: Software license or subscription fees for device farms, performance testing platforms, and security scanning tools may be billed separately from the company’s overall rates. 
  • Device/browser lab coverage: For tests that require broad compatibility coverage, costs can increase based on access to real devices, operating system versions, and browsers.  
  • Scope growth: New testing requirements, additional integrations, new platforms (mobile/web), or expanding acceptance criteria often require a change order. 
  • Additional test cycles: Extra rounds of re-testing and regression tests beyond what’s defined in the service level agreement (SLA) incur additional costs. 
  • Defect remediation effort: Fixing defects is often outside the testing scope and is billed as an additional engineering or development fee. 
  • Compliance and security deliverables: If you require additional formal evidence (e.g., audit artefacts and traceability) or expanded security testing, expect incremental charges. 

How long does software testing usually take?

On average, software testing takes around 20%-40% of the total software development time. However, the final timeline will depend on infrastructure complexity, test scope and methodology, and quality requirements. 

Here’s an approximate software testing timeframe based on the typical software project schedules: 

  Full Release Schedule  Software Testing Timeframe

Small software builds 
(e.g., Landing platforms)

12-24 weeks 2-4 weeks
Mid-sized builds 
(e.g., Fully customized mobile apps)
16-40 weeks 3-4 months
Large builds
(e.g., Multi-module platforms)
36-144 weeks 6-12 months

 Notably, software testing is often integrated into the software development lifecycle (SDLC). As such, it’s common to see QA and testing done in 1-2-week sprints rather than a separate stage altogether. 

What industries do US software testing firms typically work with?

US software testing providers work with a wide range of industries, as all digital solutions need to be tested in some capacity. However, these are the sectors that quality assurance (QA) and testing experts work in based on the State of Testing Report 2025

  • Tech: 35.2% 
  • Finance and insurance: 16.9% 
  • Others: 12.7% 
  • Healthcare: 10.9% 
  • Business and information: 4.5% 
  • Retail: 4.1% 
  • Marketing: 3.7% 
  • Transportation: 3% 
  • Government: 3% 
  • Gaming: 2.6% 
  • Education: 1.9% 

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