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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$25,000+$25 - $49 / hr1,000 - 9,999San Mateo, CA
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ERP consulting and SI company LogiGear was established in 1994. The team focuses on ERP consulting and SI and Custom Software Development.
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UndisclosedUndisclosed50 - 249Coatesville, PA
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Constellation PowerLabs, an Application Testing and Logistics & Supply Chain Consulting company, was launched in 1923. The firm provides Application Testing and Logistics & Supply Chain Consulting.
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$5,000+$50 - $99 / hr1,000 - 9,999Marietta, GA
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Established in 1997, Softensity is an IT staff augmentation company. The firm specializes in IT staff augmentation and Custom Software Development, and is large.
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$1,000+< $25 / hr2 - 9Princeton, NJ
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See all 2 projectsBGS is a comprehensive back-office service provider specializing in legal process outsourcing, document management, and administrative support. Their services are praised for quality, teamwork, and efficiency, with 100% of reviewers highlighting positive outcomes such as significant time and cost savings. Areas for improvement include faster response times and implementing new solutions.
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$1,000+< $25 / hr250 - 999Emeryville, CA
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See all 13 projectsBugRaptors is a distinguished company specializing in Software Quality Assurance and Application Testing, offering services such as QA Testing, App QA, and Development Testing. With predominantly positive feedback, approximately 90% of reviews commend their expertise in bug documentation and efficient project management. Clients consistently highlight their technical prowess, attention to detail, and commitment to quality, with 70% noting their proactive communication and adaptability to specific project needs.
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$1,000+< $25 / hr50 - 249Chesterbrook, PA
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BJS Soft Solutions LLC is an UX agency founded in 2017. The firm focuses on UX/UI Design and Web Development, and is midsize.
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Undisclosed$50 - $99 / hr10 - 49Los Angeles, CA
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See all 10 projectsQualityWorks Consulting Group is a distinguished provider of Software Quality Assurance and Testing Services, specializing in App QA and Development Testing. Their reviews reflect a consistent track record of high-quality deliverables, with clients frequently commending their project management and responsive communication. Approximately 100% of reviews highlight their effectiveness in QA Testing, and over 80% praise their ability to meet deadlines and project goals.
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$1,000+$25 - $49 / hr2 - 9Laguna Beach, CA
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Software Brush Inc is an Application Testing company. They are headquartered in Laguna Beach, California and have small team. Their services include Application Testing and IT strategy consulting.
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UndisclosedUndisclosed10 - 49Holly Springs, NC
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Located in Holly Springs, North Carolina, Paragon Application Systems is an Application Testing company. They specialize in Application Testing.
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UndisclosedUndisclosed2 - 9Piscataway, NJ
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Established in 2015, Tetraforzasoft Inc is an Application Testing company. The firm focuses on Application Testing, and is small.
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UndisclosedUndisclosed10 - 49Indianapolis, IN
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Stonemill Consulting LLC is a small Application Testing company in Indianapolis, Indiana. Their services include Application Testing.
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UndisclosedUndisclosed10 - 49Austin, TX
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TESTCo Inc. Is a small Austin, Texas-based Application Testing company. Their services include Application Testing.
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UndisclosedUndisclosed250 - 999Tampa, FL
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A-LIGN, a Cybersecurity and Application Testing company, was launched in 2009. The company focuses on Cybersecurity and Application Testing, and is midsize.
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UndisclosedUndisclosed250 - 999Atlanta, GA
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Katalon is an Application Testing company. They were established in 2016 and provide Application Testing and API Development.
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UndisclosedUndisclosed50 - 249Atlanta, GA
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Established in 2016, Kobiton is an Application Testing company. The team offers Application Testing and DevOps Managed Services.
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UndisclosedUndisclosed50 - 249Atlanta, GA
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NCS Partners is an Application Testing company in Atlanta, Georgia. They focus on Application Testing and Robotics Process Automation and were established in 2011.
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UndisclosedUndisclosed10 - 49Fort Wayne, IN
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Adaptek Systems is a small Application Testing company located in Fort Wayne, Indiana. Their services include Application Testing.
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UndisclosedUndisclosed10 - 49Boulder, CO
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TopNotchQA is a small Application Testing company. They focus on Application Testing and were established in 2015.
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UndisclosedUndisclosed10 - 49Indianapolis, IN
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Finch Automation Inc, an Application Testing company, is located in Indianapolis, Indiana and Fort Wayne, Indiana. Their services include Application Testing.
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UndisclosedUndisclosed50 - 249Miami, FL
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TheTestMart is an Application Testing company. Founded in 2020, the firm is headquartered in Miami, Florida. Their services include Application Testing.
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UndisclosedUndisclosed250 - 999Norwalk, CT
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Toluna is a Market Research and Application Testing company. Their team is in Norwalk, Connecticut. The firm focuses on Market Research and Application Testing.
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UndisclosedUndisclosed2 - 9Las Vegas, NV
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Based in Las Vegas, Nevada, iProcess LLC is an Application Testing company. They offer Application Testing and were founded in 2014.
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UndisclosedUndisclosed10 - 49Detroit, MI
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Intellibee Inc, an Application Testing company, was established in 2010. The team provides Application Testing and is based in Detroit, Michigan and Hyderabad, India.
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UndisclosedUndisclosed10 - 49Eagan, MN
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Computer Solutions LLC is an Application Testing company. They were founded in 2008 and provide Application Testing.
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UndisclosedUndisclosed50 - 249Minneapolis, MN
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Application Testing company Parsec Labs was founded in 2017. The team provides Application Testing and is headquartered in Minneapolis, Minnesota.
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UndisclosedUndisclosed1,000 - 9,999Austin, TX
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Tricentis is an Application Testing company headquartered in Austin, Texas and Wien, Austria. They specialize in Application Testing and cloud consulting & SI and were founded in 2007.
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UndisclosedUndisclosed1,000 - 9,999San Francisco, CA
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Test IO is an Application Testing company. In San Francisco, California and Berlin, Germany, the agency focuses on Application Testing.
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UndisclosedUndisclosed250 - 999San Jose, CA
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Performance Lab is an Application Testing company launched in 2008. Their team focuses on Application Testing.
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UndisclosedUndisclosed250 - 999Blue Ash, OH
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ATL, A Bureau Veritas Company, an Application Testing and Engineering company, was founded in 1987. Headquartered in Blue Ash, Ohio, the team focuses on Application Testing and Engineering.
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UndisclosedUndisclosed250 - 999San Francisco, CA
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Sauce Labs is an Application Testing company. The San Francisco, California-based team offers Application Testing.
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UndisclosedUndisclosed10 - 49San Francisco, CA
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Application Testing company Spiral QA is in San Francisco, California. They offer Application Testing.
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UndisclosedUndisclosed10 - 49Union, OH
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Continental Testing is a small Union, Ohio-based Application Testing company. The team specializes in Application Testing.
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UndisclosedUndisclosed250 - 999Indianapolis, IN
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Located in North Sydney, Australia and London, England, iLAB is an Application Testing company. They offer Application Testing.
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UndisclosedUndisclosed250 - 999Norcross, GA
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Ace Industries is an Application Testing and Contract Manufacturing company. Established in 1932, their team offers Application Testing and Contract Manufacturing.
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UndisclosedUndisclosed50 - 249Austell, GA
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Ashley Sling, an Application Testing company, was established in 1992. They focuses on Application Testing.
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UndisclosedUndisclosed10 - 49Buford, GA
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Founded in 2007, Dunlop NDT, LLC is a small Buford, Georgia-based Application Testing company. Their team offers Application Testing.
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UndisclosedUndisclosed10 - 49Alpharetta, GA
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Xenogenesis, LLC is an Alpharetta, Georgia-based Application Testing company. Established in 2002, the team provides Application Testing.
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UndisclosedUndisclosed50 - 249Aventura, FL
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Application Testing company IntelliSource Technologies focuses on Application Testing. They were established in 2019.
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UndisclosedUndisclosed2 - 9Palo Alto, CA
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Application Testing company BlazeRunner provides Application Testing. They were founded in 2019.
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UndisclosedUndisclosed50 - 249Chevy Chase, MD
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Application Testing company ALP International Corporation is located in Chevy Chase, Maryland and Washington, District of Columbia. They offer Application Testing.
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UndisclosedUndisclosed10 - 49Austin, TX
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Intoollect is an Austin, Texas-based Application Testing company. The team provides Application Testing.
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UndisclosedUndisclosed10 - 49Dallas, TX
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Application Testing company Omni Sourcing, Inc. Was established in 2012. The firm focuses on Application Testing.
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UndisclosedUndisclosed50 - 249Vienna, VA
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Steadfast Technologies is a midsize Application Testing company located in Vienna, Virginia. Their services include Application Testing.
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UndisclosedUndisclosed2 - 9Coppell, TX
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AyasCloud Inc is an Application Testing company launched in 2020. The team focuses on Application Testing.
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UndisclosedUndisclosed50 - 249New York, NY
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A-V Services, Inc. Is an Application Testing company. Their midsize team is in New York, New York and Fairfield, New Jersey. Their services include Application Testing.
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UndisclosedUndisclosed50 - 249Massapequa, NY
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Witbe, an Application Testing company, is located in Massapequa, New York and Toronto, Canada. They offer Application Testing.
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UndisclosedUndisclosed2 - 9Edison, NJ
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Testree is an Application Testing company. They focus on Application Testing and were founded in 2005.
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UndisclosedUndisclosed10 - 49Houston, TX
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Quality Lab is a small Houston, Texas-based Application Testing company. Their services include Application Testing.
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UndisclosedUndisclosed2 - 9Phoenix, AZ
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Dytek Solutions is a small Phoenix, Arizona-based Application Testing company. Their services include Application Testing.
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UndisclosedUndisclosed50 - 249Cumming, GA
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Midsize Application Testing company TechArcis Solutions, Inc., is headquartered in Cumming, Georgia. The team focuses on Application Testing and IoT development.
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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.