Top Software Testing Companies in the United States
From Silicon Valley product teams to Austin startups and New York–based enterprises, the United States is a global hub for quality assurance and software testing. U.S. firms bring deep experience in regulated industries (healthcare, fintech, government) and modern practices like shift-left testing, CI/CD-driven automation, and secure-by-design workflows.
On Clutch, you’ll find verified U.S.-based QA partners with detailed client reviews, case studies, and industry certifications. Use filters to narrow by budget, hourly rate, team size, location, and domain expertise. Compare providers on tooling proficiency, device lab coverage, and measurable outcomes such as reduced defect leakage and faster release cycles. Browse these additional directories:
• Global Top Software Testing Companies
• Software Testing Companies in New York
• Software Testing Companies in Dallas
• Software Testing Companies in San Francisco
• U.S. Software Testing Companies for Information Technology
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Featured
What are Featured Providers?
$25,000+$25 - $49 / hr1,000 - 9,999Serves United StatesServices provided
See all 86 projectsSimform is a versatile software development company specializing in App Testing, QA Testing, and Software Quality Assurance services. Clients consistently highlight their timely delivery, effective communication, and commitment to project success. Nearly all reviews mention their strong project management and adaptability to client needs, with 100% praising their commitment and technical expertise.
$5,000+Undisclosed50 - 249Serves United StatesServices provided
See all 64 projectsQA Wolf, a specialized company in QA Testing and Software Quality Assurance services, consistently receives positive feedback for its robust automation capabilities and responsive support. Approximately 85% of reviews highlight their ability to enhance automated test coverage, while 70% commend their professional and collaborative project management. Clients appreciate their seamless integration into existing workflows and rapid response to issues, making them a reliable partner in Application Quality Assurance.
$5,000+$25 - $49 / hr50 - 249Serves United StatesServices provided
See all 32 projectsQualityLogic is a reputable company specializing in Software Quality Assurance and Testing Services, including App Testing and QA Testing. According to client reviews, QualityLogic is praised for their excellent communication and detailed documentation, with approximately 90% of responses highlighting their professional project management and adherence to budget. Clients frequently commend their flexibility and the successful implementation of testing protocols, underscoring QualityLogic's ability to enhance software quality and mitigate risks effectively.
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UndisclosedUndisclosed50 - 249Chicago, IL
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See all 1 projectsMoz Web Media LLC is an SEO and social media management agency recognized for its expertise in enhancing online presence and visibility. With a client satisfaction rate of 100%, the company is praised for its professionalism and effective communication, leading to increased website exposure for clients like real estate appraisal firms.
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$10,000+$25 - $49 / hr250 - 999Houston, TX
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Established in 1999, TISA Software LLC is a midsize CRM consulting and SI company. Their services include CRM consulting and SI and IT staff augmentation.
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$5,000+$100 - $149 / hr10 - 49New York, NY
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Cybersecurity company Invadel is located in New York, New York. They focus on Cybersecurity and Application Testing.
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$1,000+$50 - $99 / hr2 - 9Woodbridge Township, NJ
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Fortitude Development, an application development firm, is headquartered in Woodbridge Township, New Jersey. Founded in 2016, the team specializes in Mobile App Development and Web Development.
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UndisclosedUndisclosed250 - 999Philadelphia, PA
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Located in Philadelphia, Pennsylvania and City of London, England, Invent Analytics is an AI company. They specialize in Artificial Intelligence and Application Testing.
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UndisclosedUndisclosed250 - 999Alpharetta, GA
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RapidIT Inc is an Application Testing company. The team specializes in Application Testing and Recruiting and is located in Alpharetta, Georgia and Hyderabad, India.
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UndisclosedUndisclosed10 - 49Northborough, MA
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DefenseCode is a Cybersecurity company. The Midleton, Ireland-based agency provides Cybersecurity and Custom Software Development.
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$10,000+$25 - $49 / hr50 - 249New York, NY
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See all 5 projectsQAwerk is a professional software testing company specializing in application quality assurance, app testing, and software QA. Reviewers consistently commend QAwerk for their impressive quality of work, high responsiveness, and proactive suggestions, with 100% positive feedback regarding their thorough testing and effective communication. Approximately 75% of reviewers highlight QAwerk's ability to adapt and integrate into client workflows seamlessly.
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$10,000+$100 - $149 / hr250 - 999St. Louis Park, MN
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Magenic is a software development firm. The company is based in St. Louis Park, Minnesota and San Francisco, California. Their team offers Custom Software Development and Mobile App Development.
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$25,000+$25 - $49 / hr50 - 249Albany, NY
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See all 1 projectsAtlantis Consulting Group Inc is a consulting firm specializing in internet-based point of sale systems. Reviews indicate a high level of customer satisfaction, highlighting their timely delivery and exceptional customer support. With 100% positive feedback, clients consistently praise their responsiveness and ability to meet specific project needs efficiently. The company's commitment to maintaining strong client relationships is a recurring theme in their feedback.
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$5,000+$200 - $300 / hr2 - 9Princeton, NJ
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Protexity is a Cybersecurity company. Established in 2023, the firm offers Cybersecurity and Application Testing.
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$1,000+$25 - $49 / hr10 - 49New York, NY
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Xoho Tech, Inc is a website development firm. Their team is headquartered in New York, New York. The agency specializes in Web Development and Custom Software Development.
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$50,000+$50 - $99 / hr50 - 249McLean, VA
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DXFactor is a website development company. They are based in McLean, Virginia and have midsize team. They specialize in Web Development and Mobile App Development.
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UndisclosedUndisclosed2 - 9Round Rock, TX
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Kimputing is an Application Testing company. The team focuses on Application Testing and IT strategy consulting and is in Round Rock, Texas.
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UndisclosedUndisclosed10 - 49Richardson, TX
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Sawtest Solution Inc. Is an Application Testing company. Their small team is located in Richardson, Texas. Their services include Application Testing and Custom Software Development.
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UndisclosedUndisclosed10 - 49Austin, TX
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Founded in 1992, Dss Solutions Inc, a small Application Testing company, is located in Austin, Texas and Mysuru, India. Their services include Application Testing and cloud consulting & SI.
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UndisclosedUndisclosed10 - 49Clearwater, FL
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In Clearwater, Florida, Speed of Light Media is an Application Testing company. Their services include Application Testing and cloud consulting & SI.
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UndisclosedUndisclosed10 - 49New York, NY
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Founded in 2011, Marquis Business and Technology Solutions is a small Application Testing company. Their team specializes in Application Testing and Custom Software Development.
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$5,000+$100 - $149 / hr1,000 - 9,999Oak Brook, IL
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CIeNET Technologies, a large custom software development company, is in Beijing, China and Oak Brook, Illinois. Their services include Custom Software Development and Enterprise App Modernization.
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UndisclosedUndisclosed50 - 249Provo, UT
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ObservePoint is an Application Testing company launched in 2010. The agency focuses on Application Testing and cloud consulting & SI.
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UndisclosedUndisclosed1,000 - 9,999Provo, UT
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Micro Focus, a software development company, was launched in 1976. The team provides Custom Software Development and Enterprise App Modernization and is in Provo, Utah.
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UndisclosedUndisclosed50 - 249Irving, TX
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Based in Irving, Texas and Hyderabad, India, QualiZeal is a midsize Application Testing company. Their services include Application Testing and cloud consulting & SI.
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UndisclosedUndisclosed50 - 249Frisco, TX
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Cloud consulting & SI and Application Testing company ProDigitalWorx Inc was founded in 2018. The midsize team specializes in cloud consulting & SI and Application Testing.
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UndisclosedUndisclosed50 - 249Addison, TX
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Worksoft is an Application Testing company. Founded in 1998, the team focuses on Application Testing and IT strategy consulting. The company is in Addison, Texas and City of London, England.
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UndisclosedUndisclosed50 - 249Newark, DE
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Enterprise Business Solutions Inc, a software development firm and Application Testing company, specialize in Custom Software Development and Application Testing. They were launched in 1999.
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UndisclosedUndisclosed50 - 249Lenexa, KS
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Launched in 1999, Genuen is a midsize Application Testing and Engineering company. Their team provides Application Testing and Engineering.
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UndisclosedUndisclosed50 - 249Campbell, CA
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Application Testing and Robotics Process Automation company Resolve Systems was launched in 2014. The team focuses on Application Testing and Robotics Process Automation.
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UndisclosedUndisclosed1,000 - 9,999San Jose, CA
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Spirent Communications is a Cybersecurity company in San Jose, California and Beijing, China. They offer Cybersecurity and IT managed services and were launched in 1936.
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UndisclosedUndisclosed50 - 249West Chester, OH
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Established in 1971, Systecon is an Application Testing and Commercial Property Management company. The company provides Application Testing and Commercial Property Management, and is midsize.
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UndisclosedUndisclosed50 - 249Cumming, GA
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Yash Solutions LLC is a big data company and Application Testing company established in 2000. The team provides BI & big data consulting & SI and Application Testing and is in Cumming, Georgia.
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UndisclosedUndisclosed50 - 249Topeka, KS
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Info Origin Inc., a software development company and Application Testing company, was established in 2011. The agency focuses on Custom Software Development and Application Testing.
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UndisclosedUndisclosed50 - 249Lewes, DE
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JESV TECH is a custom software development firm and Application Testing company located in Lewes, Delaware. The team offers Custom Software Development and Application Testing.
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UndisclosedUndisclosed50 - 249Westfield, MA
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Industrial Technical Services, Inc, an Application Testing and Commercial Property Management company, provide Application Testing and Commercial Property Management. They were established in 1976.
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UndisclosedUndisclosed50 - 249Chico, CA
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Shasta QA , an Application Testing company, was launched in 2002. The midsize team offers Application Testing and Custom Software Development.
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UndisclosedUndisclosed50 - 249Kennesaw, GA
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Gretrix is a custom software development firm and Application Testing company. Founded in 2018, the firm provides Custom Software Development and Application Testing.
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UndisclosedUndisclosed50 - 249San Francisco, CA
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Eppo, Inc. Is an artificial intelligence company and Application Testing company. The San Francisco, California-based team focuses on Artificial Intelligence and Application Testing.
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UndisclosedUndisclosed50 - 249Atlanta, GA
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App development company and Application Testing company TestGrid.io is in Atlanta, Georgia. Their services include Mobile App Development and Application Testing.
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UndisclosedUndisclosed50 - 249New York, NY
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Application Testing and AI Agents company Emergence AI was founded in 2018. The team specializes in Application Testing and AI Agents.
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$25,000+$25 - $49 / hr10 - 49Denver, NC
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Genx Integrated Systems is an Application Testing company launched in 2023. The team specializes in Application Testing and DevOps Managed Services.
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UndisclosedUndisclosed1,000 - 9,999Franklin, TN
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Emids is a Business Consulting company founded in 1999. Their services include Business Consulting and Generative AI.
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$1,000+$25 - $49 / hr250 - 999New York, NY
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See all 1 projectsProquantic Software specializes in creating and enhancing websites, offering services tailored to business promotion needs. Client feedback highlights their exceptional communication, professionalism, and the ability to deliver aesthetically pleasing and functional websites on time and within budget. Their honest and considerate approach is consistently praised, making them a reliable choice for digital solutions.
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$10,000+$25 - $49 / hr50 - 249Alpharetta, GA
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Mobinius Technologies is a midsize Alpharetta, Georgia-based app development company. Their services include Mobile App Development and Application Testing.
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$50,000+Undisclosed1,000 - 9,999Irving, TX
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In Irving, Texas and Serilingampalle (M), India, Motivity Labs is a Cybersecurity company. The team offers Cybersecurity and Mobile App Development.
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UndisclosedUndisclosed50 - 249Las Vegas, NV
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CorePulse Technologies, a branding company, was established in 2016. The team offers Branding and Search Engine Optimization.
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$10,000+$100 - $149 / hr2 - 9Cornelius, NC
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ProformUX is an UX agency. Their small team of employees is located in Cornelius, North Carolina. Their team focuses on UX/UI Design and Business Consulting.
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$5,000+$25 - $49 / hr50 - 249Hanford, CA
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Acrosoft LLC is a web design agency. The company is in Hanford, California. Their services include Web Design and UX/UI Design.
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$5,000+$25 - $49 / hr50 - 249Chicago, IL
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Launched in 2016, QA Outsource is a midsize IT strategy consulting company. Their services include IT strategy consulting and IT managed services.
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UndisclosedUndisclosed10 - 49Las Vegas, NV
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Buguard is a Cybersecurity company. They were established in 2020, and their services include Cybersecurity and IT managed services.
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$10,000+Undisclosed10 - 49Atlanta, GA
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PurpleBox, Inc. Is a cloud consulting & SI company. The team specializes in cloud consulting & SI and Cybersecurity and is headquartered in Atlanta, Georgia.
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$50,000+$25 - $49 / hr50 - 249New York, NY
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See all 9 projectsKualitatem Inc. is a specialized QA Testing firm known for providing comprehensive software testing services, including functional, performance, and security testing. Reviews highlight a 95% reduction in critical software bugs and a 30% improvement in application performance. Clients consistently praise their proactive approach and detailed testing methodologies, with 100% positive feedback on timely delivery and effective project management.
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This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.
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List of the Top 15 United States QA Testers
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$5,000+Undisclosed50 - 249Seattle, WA
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
100% Application Testing -
$5,000+$25 - $49 / hr50 - 249Boise, ID
Ability to deliver
38.1/40.018.2/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
100% Application Testing -
UndisclosedUndisclosed250 - 999Mountain View, CA
Ability to deliver
36/40.016.4/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
100% Application Testing -
$1,000+< $25 / hr250 - 999New York, NY
Ability to deliver
35.4/40.016/20 Reviews9.8/10 Clients & Experience9.6/10 Market PresenceService focus
100% Application Testing -
$1,000+$50 - $99 / hr50 - 249Boise, ID
Ability to deliver
31.2/40.016.4/20 Reviews8.6/10 Clients & Experience6.2/10 Market PresenceService focus
100% Application Testing -
$5,000+$25 - $49 / hr10 - 49Boulder, CO
Ability to deliver
31/40.015.4/20 Reviews9.8/10 Clients & Experience5.9/10 Market PresenceService focus
80% Application Testing20% Other -
$1,000+$50 - $99 / hr50 - 249Aurora, CO
Ability to deliver
30.4/40.016.2/20 Reviews8.3/10 Clients & Experience5.8/10 Market PresenceService focus
100% Application Testing -
$50,000+$50 - $99 / hr1,000 - 9,999San Francisco, CA
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
10% Application Testing90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Application Testing90% Other -
$25,000+$50 - $99 / hr250 - 999Aventura, FL
Ability to deliver
39.3/40.019.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
10% Application Testing90% Other -
$5,000+< $25 / hr250 - 999Sunnyvale, CA
Ability to deliver
27.1/40.018/20 Reviews1.6/10 Clients & Experience7.5/10 Market PresenceService focus
100% Application Testing -
$5,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
34.6/40.015.8/20 Reviews9/10 Clients & Experience9.8/10 Market PresenceService focus
20% Application Testing80% Other -
$10,000+$50 - $99 / hr50 - 249Lakewood, CO
Ability to deliver
38.4/40.018.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Application Testing90% Other -
$50,000+$25 - $49 / hr1,000 - 9,999Houston, TX
Ability to deliver
35.4/40.017.4/20 Reviews8.4/10 Clients & Experience9.6/10 Market PresenceService focus
10% Application Testing90% Other -
$50,000+$50 - $99 / hr50 - 249Scottsdale, AZ
Ability to deliver
36.3/40.017.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
10% Application Testing90% Other -
$1,000+$150 - $199 / hr10 - 49Guys Mills, PA
Ability to deliver
29.4/40.016.2/20 Reviews5.7/10 Clients & Experience7.5/10 Market PresenceService focus
50% Application Testing50% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Princeton, NJ
Ability to deliver
29.3/40.015.2/20 Reviews7.3/10 Clients & Experience6.8/10 Market PresenceService focus
20% Application Testing80% Other -
$10,000+$150 - $199 / hr10 - 49Chicago, IL
Ability to deliver
35.5/40.015.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
10% Application Testing90% Other -
$5,000+$50 - $99 / hr50 - 249Austin, TX
Ability to deliver
35/40.018.8/20 Reviews10/10 Clients & Experience6.2/10 Market PresenceService focus
10% Application Testing90% Other -
$1,000+< $25 / hr1,000 - 9,999Lewisville, TX
Ability to deliver
32.6/40.015.6/20 Reviews7.4/10 Clients & Experience9.6/10 Market PresenceService focus
10% Application Testing90% Other -
Undisclosed$150 - $199 / hr10 - 49Minneapolis, MN
Ability to deliver
34.6/40.016.8/20 Reviews10/10 Clients & Experience7.8/10 Market PresenceService focus
10% Application Testing90% Other -
$10,000+$25 - $49 / hr50 - 249McLean, VA
Ability to deliver
26.8/40.017.2/20 Reviews4.3/10 Clients & Experience5.3/10 Market PresenceService focus
45% Application Testing55% Other -
$10,000+$50 - $99 / hr10 - 49New York, NY
Ability to deliver
34.1/40.019.6/20 Reviews9/10 Clients & Experience5.5/10 Market PresenceService focus
10% Application Testing90% Other -
$25,000+$50 - $99 / hr250 - 999Plano, TX
Ability to deliver
32.6/40.015.6/20 Reviews10/10 Clients & Experience7/10 Market PresenceService focus
10% Application Testing90% Other -
UndisclosedUndisclosed50 - 249Cookeville, TN
Ability to deliver
21.5/40.016.6/20 Reviews0/10 Clients & Experience4.9/10 Market PresenceService focus
100% Application Testing -
$75,000+$150 - $199 / hr10 - 49Austin, TX
Ability to deliver
31.3/40.016.2/20 Reviews8.5/10 Clients & Experience6.6/10 Market PresenceService focus
25% Application Testing75% Other -
$250,000+$50 - $99 / hr250 - 999Austin, TX
Ability to deliver
30.8/40.016.2/20 Reviews8.2/10 Clients & Experience6.4/10 Market PresenceService focus
15% Application Testing85% Other -
$5,000+$25 - $49 / hr10 - 49New York, NY
Ability to deliver
20.8/40.016.8/20 Reviews0/10 Clients & Experience4/10 Market PresenceService focus
100% Application Testing -
$5,000+$150 - $199 / hr10 - 49Portland, OR
Ability to deliver
30.8/40.015/20 Reviews8.5/10 Clients & Experience7.3/10 Market PresenceService focus
20% Application Testing80% Other -
$5,000+$150 - $199 / hr10 - 49San Francisco, CA
Ability to deliver
30.6/40.016.2/20 Reviews7.3/10 Clients & Experience7.2/10 Market PresenceService focus
20% Application Testing80% Other
U.S. Software Testing FAQs
U.S. testing partners offer proximity to major product and engineering hubs, making collaboration easier across time zones and in-person workshops. Many teams also understand domestic compliance requirements such as HIPAA, PCI DSS, SOX, COPPA, and accessibility standards (WCAG/ADA), which is critical for healthcare, fintech, public sector, and enterprise SaaS.
US agencies often staff senior SDETs and architects who can integrate automated testing into your DevOps toolchain (GitHub/GitLab/Jenkins/Azure DevOps), improve release velocity, and establish KPIs like defect escape rate, test coverage, MTTD/MTTR, and build health. If your roadmap depends on timely, compliant releases for North American users, a US-based QA partner can be a strategic multiplier.
Pricing varies because of factors like expertise, location, and scope. Based on Clutch’s recent data, most software testing companies in the United States charge:
- Hourly rates: typically $75 – $175 per hour for US-based QA engineers and SDETs; niche security or performance specialists may charge more.
- Monthly dedicated QA: $8,000 – $20,000+ per engineer for embedded team models.
- Project-based engagements: functional web/mobile testing often ranges from $25,000 – $150,000+, depending on complexity, environments, and automation depth.
- Ongoing QA programs: regression + automation maintenance may start around $5,000 – $25,000 per month for smaller products, scaling with release cadence and coverage goals.
Tip: Ask for a pilot sprint or paid discovery to validate tooling, coverage, and reporting before you commit to a longer-term plan.
U.S. QA and testing agencies commonly support a broad spectrum of industries and niches, including those from:
- Healthcare and health tech (HIPAA, FDA-adjacent validation, data privacy)
- Fintech, banking, and payments (PCI DSS, SOC 2, audit trails)
- SaaS and enterprise software (multi-tenant, role-based access, SSO)
- E-commerce and retail (peak load testing, conversions, ADA compliance)
- Media/streaming and gaming (cross-device compatibility, latency)
- Automotive, aerospace, and defense (safety, reliability, traceability)
- Public sector and education (FedRAMP-influenced controls, accessibility)
When assessing potential partners, look for sector-specific case studies and evidence of regulatory fluency.
Start by carefully outlining your project’s specific technical requirements and objectives. Then, browse through Clutch’s directories and evaluate your options on:
- Domain fit — experience in your industry’s risks and regulations.
- Test strategy — clear approaches across unit, API, UI, performance, security, and accessibility; evidence of a shift-left mindset.
- Tooling and labs — expertise with Selenium/Cypress/Playwright, Appium, Postman, JMeter/k6, BrowserStack/Sauce Labs, TestRail/Zephyr; real device coverage.
- DevOps integration — CI/CD automation, version control, and artifact management aligned with your stack.
- Reporting and KPIs — dashboards for defect leakage, coverage, flakiness, and time-to-release.
- Team model — embedded vs. outsourced software testing in the USA; onshore, nearshore, or hybrid support with defined handoffs.
- Proof — quantified case studies, references, and verified Clutch reviews.
Shortlist 3–5 firms, run a small pilot (2–4 weeks), and compare outputs: stability gains, test reliability, and collaboration quality.
- No written test strategy, unclear scope, or generic “we test everything” claims
- Overreliance on manual testing without a roadmap for automation where it makes sense
- Limited real-device coverage for mobile or a shallow browser/OS matrix
- Flaky tests and no remediation plan; ignoring test data and environment parity
- Vanity metrics (case counts) instead of meaningful KPIs (defect escape rate, coverage)
- Inability to integrate with your CI/CD tools or provide audit-ready reports
- Lack of familiarity with required standards (HIPAA, PCI DSS, SOC 2, WCAG/ADA)
- Poor knowledge transfer, no ownership of test assets, or missing documentation
Underestimating red flags can lead to regrets, headaches, and costly mishaps in the future. Be proactive when filtering your options and do your best to spot these warning signs early.