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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UndisclosedUndisclosed10 - 49Irving, TX
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In Irving, Texas, Good Automation is a custom software development company and Application Testing company. They specialize in Custom Software Development and Application Testing.
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UndisclosedUndisclosed10 - 49Colorado Springs, CO
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Small Application Testing and Robotics Process Automation company Procurity, is in Colorado Springs, Colorado. Their services include Application Testing and Robotics Process Automation.
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UndisclosedUndisclosed10 - 49Cleveland, OH
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Established in 2012, Emerald Built Environments is an Application Testing and Environmental Consulting company. Their services include Application Testing and Environmental Consulting.
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UndisclosedUndisclosed10 - 49Charlotte, NC
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R88, Inc. Is a small Application Testing and Business Consulting company in Charlotte, North Carolina. The team focuses on Application Testing and Business Consulting.
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UndisclosedUndisclosed10 - 49Chesterfield, MO
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Launched in 2011, Special Inspections & Design is an Architectural Design and Application Testing company. Their team provides Architectural Design and Application Testing.
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UndisclosedUndisclosed10 - 49Baltimore, MD
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Application Testing and Engineering company Building Envelope Consultants and Scientists is headquartered in Baltimore, Maryland. Their services include Application Testing and Engineering.
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UndisclosedUndisclosed10 - 49Englewood, CO
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Small cloud consulting & SI and Application Testing company Nicman Group, is located in Englewood, Colorado and Clifton, New Jersey. The team offers cloud consulting & SI and Application Testing.
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UndisclosedUndisclosed10 - 49Woodbury, MN
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Established in 1991, SVI America is an application development company and Application Testing company. The team offers Mobile App Development and Application Testing.
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UndisclosedUndisclosed10 - 49Billerica, MA
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Headquartered in Billerica, Massachusetts, Xcelero is a small ERP consulting and SI and Application Testing company. Their services include ERP consulting and SI and Application Testing.
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UndisclosedUndisclosed10 - 49Plano, TX
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Established in 1995, ASSET InterTech, Inc. Is a software development company and Application Testing company. The firm specializes in Custom Software Development and Application Testing.
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UndisclosedUndisclosed10 - 49Oakland, CA
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Software development firm and Application Testing company npm, Inc. Is based in Oakland, California. The team specializes in Custom Software Development and Application Testing.
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UndisclosedUndisclosed10 - 49Hallandale Beach, FL
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Maverc Technologies is a small Cybersecurity and Application Testing company located in Hallandale Beach, Florida. Their services include Cybersecurity and Application Testing.
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UndisclosedUndisclosed10 - 49O'Fallon, IL
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Application Testing and Engineering company Quality Testing and Engineering, Inc was established in 2000. The team specializes in Application Testing and Engineering.
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$5,000+$25 - $49 / hr10 - 49Sugar Land, TX
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See all 5 projectsEnginerasoft offers services including App Testing, QA Testing, and Software Testing. Clients have praised Enginerasoft for their excellent project management, timely delivery, effective communication, and creative solutions. The overall feedback highlights their impressive ability to align with client needs and improve project outcomes through innovative ideas.
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$1,000+< $25 / hr250 - 999Milpitas, CA
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See all 5 projectsAppzlogic Inc specializes in Application Testing, QA Testing, and Software Quality Assurance services. Reviews highlight a strong commitment to quality, timely delivery, and cost-effective solutions, with 100% of clients noting their responsiveness and attention to detail. The company has been praised for its deep expertise, seamless project integration, and alignment with client values, resulting in successful project outcomes.
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$250,000+$100 - $149 / hr1,000 - 9,999Santa Clara, CA
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Infostretch is a large Application Testing company headquartered in Santa Clara, California and New York, New York. Their services include Application Testing and Enterprise App Modernization.
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$1,000+Undisclosed10 - 49Nicholasville, KY
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Designr is a social media marketing agency headquartered in Nicholasville, Kentucky. They focus on Social Media Marketing and Search Engine Optimization and were launched in 2016.
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$1,000+$25 - $49 / hr10 - 49Pleasanton, CA
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Klystron is a SEO services firm. Their team is headquartered in Pleasanton, California. The firm specializes in Search Engine Optimization and Custom Software Development.
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UndisclosedUndisclosed50 - 249Piscataway, NJ
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Testing Mavens is an Application Testing company. They provide Application Testing and IT staff augmentation and are based in Piscataway, New Jersey and Kakkanad, India.
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$10,000+$25 - $49 / hr2 - 9Aventura, FL
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See all 2 projectsSionix is a recruitment agency specializing in efficiently filling technical roles by sourcing, screening, and presenting candidates aligned with clients' technical and cultural needs. Reviewers report a 100% success rate in meeting timelines and emphasize Sionix's strong communication and project management. However, 50% suggest improvements in candidate screening details.
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$1,000+Undisclosed250 - 999Stamford, CT
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Aspire IT Services Partner is a midsize IT managed services company founded in 2002. Their team provides IT managed services and IT staff augmentation.
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$1,000+$25 - $49 / hr250 - 999New York, NY
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Dawn IT Services is a Sales Outsourcing company. The agency is headquartered in Chennai, India and New York, New York. Their team provides Sales Outsourcing and Application Testing.
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$1,000+< $25 / hr250 - 999Princeton, NJ
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CAT Software Services, a social media marketing firm, is based in Princeton, New Jersey. They offer Social Media Marketing and Email Marketing.
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$5,000+$50 - $99 / hr10 - 49Carlsbad, CA
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Established in 2019, Scleraworx is an IT managed services company. The agency provides IT managed services and Web Development.
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Undisclosed$100 - $149 / hr10 - 49Miamisburg, OH
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Tech Team SOS is a Cybersecurity company launched in 2012. The team provides Cybersecurity and IT managed services.
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$10,000+$50 - $99 / hr10 - 49Washington, DC
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UTF Labs, a software development firm, is based in Washington, District of Columbia. Launched in 2017, the team offers Custom Software Development and Web Development.
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UndisclosedUndisclosed50 - 249Marietta, GA
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Symbioun, a custom software development company, was founded in 1993. The team provides Custom Software Development and IT managed services.
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$1,000+Undisclosed50 - 249Danbury, CT
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Golabs is a web development firm. Located in San Carlos, Costa Rica and Danbury, Connecticut, the firm provides Web Development and Mobile App Development.
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$5,000+$50 - $99 / hr2 - 9Boca Raton, FL
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TryMe is a Digital Strategy company. They are based in Boca Raton, Florida and have small team of experts. Their services include Digital Strategy and Custom Software Development.
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Undisclosed$25 - $49 / hr2 - 9Raleigh, NC
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KLEAP Technologies is a Cybersecurity company in Raleigh, North Carolina and Hyderabad, India. They provide Cybersecurity and Blockchain and were launched in 2020.
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$1,000+$25 - $49 / hr10 - 49Fairfax, VA
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See all 1 projectsMoldotech specializes in web development, integration, and UI/UX design, with a particular focus on mobile app development. Clients consistently praise the company for its efficient project management, timely delivery, and high-quality design work, emphasizing Moldotech's ability to swiftly address concerns and integrate feedback effectively.
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UndisclosedUndisclosed50 - 249Tampa, FL
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Amzur Technologies, Inc. Is a cloud consulting & SI company. Their team is based in Tampa, Florida. The company offers cloud consulting & SI and ERP consulting and SI.
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$5,000+$100 - $149 / hr2 - 9Trumbull, CT
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Launched in 1999, DLS Solutions, Inc. Is a custom software development company. Their team provides Custom Software Development and UX/UI Design.
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UndisclosedUndisclosed50 - 249Greensboro, NC
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Software development company Zenergy Technologies is based in Greensboro, North Carolina. They focus on Custom Software Development and Application Testing and were founded in 2010.
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UndisclosedUndisclosed50 - 249Huntsville, AL
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MTA, INC. - Alabama, a software development company, was established in 1984. The midsize team focuses on Custom Software Development and Application Testing.
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UndisclosedUndisclosed50 - 249Seattle, WA
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Founded in 2012, Strategic Business Decisions Consulting is an Application Testing company. Their team focuses on Application Testing and Digital Strategy.
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UndisclosedUndisclosed50 - 249New York, NY
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RTTS is a business intelligence company. The company is in New York, New York. Their team specializes in BI & big data consulting & SI and Application Testing.
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UndisclosedUndisclosed50 - 249Orange, CA
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SQA² is an Application Testing company launched in 1997. The team offers Application Testing and IT strategy consulting and is in Orange, California.
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UndisclosedUndisclosed50 - 249Cupertino, CA
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OPTOFIDELITY is an AR/VR development company. Their midsize team of employees is located in Cupertino, California. Their team specializes in AR/VR development and Application Testing.
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UndisclosedUndisclosed50 - 249San Francisco, CA
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TestRigor is an Application Testing company. Established in 2015, the company is based in San Francisco, California. Their team focuses on Application Testing and ERP consulting and SI.
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UndisclosedUndisclosed50 - 249San Francisco, CA
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Founded in 2012, Rainforest QA, a midsize Application Testing company, is in San Francisco, California. Their services include Application Testing and Artificial Intelligence.
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UndisclosedUndisclosed50 - 249Redwood City, CA
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Split Software, Inc. Is an Application Testing company. They offer Application Testing and Custom Software Development and were launched in 2015.
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UndisclosedUndisclosed1,000 - 9,999Diamond Bar, CA
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Liferay is an Application Testing company established in 2004. The large team focuses on Application Testing and API Development.
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UndisclosedUndisclosed50 - 249Saint Paul, MN
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CRM Services, a CRM consulting and SI company, was established in 2024. The midsize team focuses on CRM consulting and SI and Blockchain.
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$5,000+< $25 / hr50 - 249Alpharetta, GA
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D2R AI Labs Private ltd is a software development company. They offer Custom Software Development and Artificial Intelligence and are based in Alpharetta, Georgia.
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$5,000+$100 - $149 / hr50 - 249Edison, NJ
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Content Writing Pulse is a branding agency. They are in Edison, New Jersey and have midsize team. They offer Branding and Search Engine Optimization.
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$1,000+< $25 / hr50 - 249Santa Clara, CA
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Goognu data service pvt. Ltd is a business intelligence company. The Santa Clara, California-based firm focuses on BI & big data consulting & SI and cloud consulting & SI.
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$10,000+$25 - $49 / hr50 - 249Mount Laurel Township, NJ
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Winlen Technologies, an IT strategy consulting company, is based in Mount Laurel Township, New Jersey. They specialize in IT strategy consulting and IT managed services and were established in 2015.
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Undisclosed$100 - $149 / hr10 - 49Fair Oaks, CA
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Launched in 2006, BG Software is a Cybersecurity company. The agency provides Cybersecurity and Custom Software Development.
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$250,000+$200 - $300 / hr10 - 49Detroit, MI
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Block Harbor Cybersecurity is a Cybersecurity company headquartered in Detroit, Michigan and Rochester Hills, Michigan. They offer Cybersecurity and IT managed services.
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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.