Top 10 Best Software QA Testing Companies in USA in 2025

Discover the leading software QA testing companies in USA, recognized for their excellence in ensuring high-quality software. These top firms deliver expert testing services, guaranteeing robust performance and reliability across diverse industries.

Welcome to our comprehensive guide featuring the best software testing companies in USA, showcasing top QA testing companies and software quality assurance companies. As technology advances rapidly, the demand for top-quality software products is more essential than ever. To ensure that software products meet the specified requirements, are free of errors, and comply with industry regulations, software QA testing has become an essential component of the software development process. As a result, businesses of all sizes actively seek proficient software testing companies to partner with and guarantee seamless performance of their digital products.

Criteria for Selecting the Best Software Testing Companies in USA

Selecting the best software testing companies can be daunting due to the sheer number of available options. According to a Market Research Future (MRFR) report, the outsourced software testing market was valued at USD 3.56 billion in 2022 and is expected to reach USD 5.28 billion by 2032. With many companies listing US locations but operating primarily offshore, businesses must consider several factors before deciding.

Key Considerations Include

• Onshore vs. Offshore Testing: Balance the benefits of cost savings from offshore testing with potential challenges such as time zone differences and language barriers.
• Experience and Expertise: Look for companies with a proven track record in your industry and expertise in relevant testing methodologies.
• Technological Capabilities: Ensure the company uses state-of-the-art tools and technologies to provide efficient, effective, and scalable testing solutions.
• Client Portfolio and Reviews: Client testimonials and industry recognition on platforms like Clutch and G2 can provide insights into a company’s reliability and performance.

Top 10 Software Testing Companies in USA in 2024

After extensive research, we have compiled a list of the top 10 software testing companies in USA for 2024. These companies have been selected based on their years of industry experience, core service offerings, domain expertise, geographical presence, and reputation on esteemed review platforms. The list is presented in no particular order, but it’s worth noting that QASource, headquartered in California, USA, meets all the criteria set forth.

1. QASource

   Core Services	Automation Testing, Manual Testing, IoT Testing, Software Testing, AI Testing, API Testing, Security Testing, Salesforce Testing, SAP Testing, Financial Testing, Blockchain Testing, Cybersecurity Testing, Performance Testing, RPA Testing, Cloud-based Software Testing, Mobile App Testing, QA Consulting, and many more with dedicated testing teams and customizable solutions.
   About	QASource is a leading software testing company providing high-quality QA services to clients worldwide for over 23 years. They provide nearshore and offshore quality testing engineers and expertise to clients who need to deliver thoroughly tested software. Their proven approach combines extensive training, dedicated teams, and optimized communication protocols to quickly onboard new clients, deeply integrate with their development teams, and maximize their output, quality, and speed.
   Founded Year	2000
   Onshore/Offshore Testing	Both
   Headquartered	California, United States
   Other Locations	United States Mexico India
   Services Areas	USA, Canada, UK, Australia, New Zealand, Ireland, Portugal, Spain, Iceland, Norway, Sweden, Finland, Denmark, Germany, Belgium, France, Austria, Switzerland
   No. of Employees	1400+

2. DeviQA

   Core Services	QA Automation, Manual Testing, Performance Testing, Security Testing, API Testing, Mobile Testing, Web Testing, Desktop Testing, Compatibility Testing, Load Testing, Functional Testing, DevOps Testing, Usability Testing, QA Audit & Consulting, and Test Documentation.
   About	DeviQA is a software testing and quality assurance company that delivers reliable and efficient QA solutions. Its approach is tailored to meet the specific needs of each project, helping businesses achieve their goals by ensuring their applications are robust, secure, and performant.
   Founded Year	2010
   Onshore/Offshore Testing	Yes
   Headquartered	New York, United States
   Other Locations	United States, Europe, UK, Canada, the Middle East, and Australia.
   Services Areas	North America, Europe, and the Asia-Pacific
   No. of Employees	250+

3. QualityLogic

   Core Services	Manual testing, Automated Testing, Performance Testing, Mobile Testing, Security Testing, Accessibility Testing, Usability Testing, API Testing, Load and Performance Testing, Regression Testing, Exploratory Testing, and DevOps testing.
   About	Qualitylogic has over 38 years of experience in the software testing industry. They have worked with companies in various industries, including healthcare, finance, telecommunications, and more. With a team of experienced engineers and testers, QualityLogic has earned a reputation for delivering high-quality testing services that help clients improve the performance and reliability of their products.
   Founded Year	1986
   Onshore/Offshore Testing	Both
   Headquartered	Idaho, United States
   Other Locations	United States
   Services Areas	Southern California, Midwest, and Pacific Northwest USA
   No. of Employees	200+

4. ImpactQA

   Core Services	Automation Testing, Functional Testing, Performance Testing, Security Testing, Mobile App Testing, IoT Testing, API Testing, Cloud Testing, Usability Testing, Accessibility Testing, Compatibility Testing, Penetration Testing, Compliance Testing, Big Data Testing, Data Migration Testing, Database Testing, DevOps Testing, ERP Testing, Localization Testing, Regression Testing, Smoke Testing, and Unit Testing.
   About	ImpactQA is a global independent software testing and quality assurance company that delivers high-quality testing solutions to clients across various industries. The company is known for its expertise in leveraging innovative technologies to ensure software security, reliability, and performance. With a commitment to excellence, ImpactQA provides tailored services to meet each client's unique needs, helping them achieve faster time-to-market and improved software quality.
   Founded Year	2012
   Onshore/Offshore Testing	Both
   Headquartered	Texas, United States
   Other Locations	United States, United Kingdom, Germany, India
   Services Areas	North America, Europe, the Asia-Pacific, and the Middle East
   No. of Employees	250+

5. Cigniti

   Core Services	Quality Engineering, Digital Assurance, Advisory and Transformation, QA Outsourcing, DevOps, Test Advisory Services, and QE and Digital Assurance Platform.
   About	Cigniti is a global leader in independent quality engineering and software testing services. It has expanded its operations to various locations worldwide. Cigniti has an impressive track record of delivering high-quality services to leading organizations across verticals.
   Founded Year	1998
   Onshore/Offshore Testing	India-based Operations
   Headquartered	Hyderabad, India
   Other Locations	United States, United Kingdom, Canada, Australia, UAE, South Africa, Singapore, and India
   Services Areas	North America, Europe, Asia-Pacific, and the Middle East
   No. of Employees	4,000+

6. Qualitestgroup

   Core Services	Test Automation, Performance Engineering, Quality Engineering, Agile & DevOps, QA Consulting, Digital Assurance & Testing, SAP Testing, Testing Transformation, Accessibility Testing, and Security Testing.
   About	Qualitestgroup is a software testing and quality assurance company founded in 1997. It provides end-to-end quality assurance and testing services to businesses of all sizes, from small startups to large enterprises. Qualitestgroup has the resources and expertise to deliver quality assurance and software testing services across various industries.
   Founded Year	1997
   Onshore/Offshore Testing	Both
   Headquartered	London, United Kingdom
   Services Areas	United States, Canada, Europe, India, Middle East, and Africa
   No. of Employees	6500+

7. TestingXperts

   Core Services	Test Automation, Manual Testing, Performance Testing, Security Testing, Mobile Testing, Functional Testing, Regression Testing, Compatibility Testing, Usability Testing, Exploratory Testing, DevOps Testing, and Consulting Services.
   About	TestingXperts is a leading software testing and quality assurance company that provides end-to-end testing services for digital products and platforms. They have a proven track record of delivering high-quality software testing solutions to clients across banking, finance, healthcare, e-commerce, and more industries. With a global presence and a team of experienced testing professionals, TestingXperts is committed to delivering reliable and cost-effective testing services.
   Founded Year	2013
   Onshore Testing	Yes. India-based Operation
   Offshore Testing	Yes
   Headquartered	Pennsylvania, United States
   Other Locations	United Kingdom, Canada, UAE, Singapore, Netherlands, South Africa, India
   Services Areas	USA, Canada, UK, Europe, Australia, Middle East, Asia Pacific
   No. of Employees	1500+

8. QAMentor

   Core Services	Software testing, QA consulting, test automation, mobile testing, web application testing, performance testing, security testing, regression testing, usability testing, accessibility testing, functional testing, API testing, and DevOps testing.
   About	QAMentor is one of the leading QA testing companies and offers QA consulting services. Founded in 2010, it has since provided customized testing solutions for clients in various industries, including healthcare, finance, education, and e-commerce. The company's team of experts offers various testing services, including functional, performance, security, and automation testing. QAMentor's mission is to help businesses deliver high-quality software products while reducing risk and cost.
   Founded Year	2010
   Onshore Testing	Yes. India-based Operation
   Offshore Testing	Yes
   Headquartered	New York, United States
   Other Locations	USA, United Kingdom, France, Ukraine, Israel, Thailand, Romania, Tunisia, India
   Services Areas	New York, Brooklyn, Jersey City, Fort Lauderdale, London, Paris, Toulouse, Cherkasy, Kharkiv, Haifa, Nakhon Ratchasima, Bucharest, Tunis, Pune, Bangalore, Chennai, Trivandrum.
   No. of Employees	400+

9. TestMatick

   Core Services	Test Automation, Manual Testing, Mobile App Testing, Web Application Testing, Game Testing, Cloud-Based Testing, Performance Testing, Security Testing, DevOps Testing, API Testing, and QA Consulting.
   About	Testmatick is a software testing company that provides end-to-end QA services to various industries. Testmatick has since become a leading software testing company serving clients worldwide. A team of experienced testers at Testmatick works closely with clients to ensure their software products meet the highest quality standards.
   Founded Year	2009
   Onshore/Offshore Testing	Both
   Headquartered	New York, United States
   Other Locations	Ukraine, Cyprus, and Germany
   Services Areas	Ukraine, Cyprus, Germany
   No. of Employees	120+

10. Testrig

    Core Services	Functional Testing, Regression Testing, Security Testing, Performance Testing, Automation Testing, Mobile Testing, Game Testing, DevOps Testing, and many more.
    About	Testrig is a software testing company offering businesses comprehensive testing solutions globally. Founded in 2015, it has rapidly become a reliable partner for organizations looking to optimize their testing processes. Testrig specializes in manual and automation testing across different domains, providing clients with tailor-made testing services to meet their business needs.
    Founded Year	2015
    Onshore/Offshore Testing	Both
    Headquartered	Texas, United States
    Other Locations	India and the United Kingdom
    Services Areas	USA, Canada, UK, Australia, New Zealand, India, and the Middle East
    No. of Employees	100+

Why does QASource Stand Out?

QASource consistently meets and exceeds industry standards, making it a top choice among software quality assurance companies in USA. With a robust set of core services, a solid global presence, and a client-centric approach, QASource is well-equipped to handle complex testing requirements across industries. Their ability to integrate traditional and advanced testing methodologies, along with their commitment to continuous improvement, sets them apart as a leader in the field.

Wrap Up

In conclusion, software testing emerges as an indispensable facet of the software development lifecycle, warranting meticulous attention from businesses. With the persistent and escalating demand for superior-quality software, the significance of securing a reliable, cost-effective software testing partner cannot be overstated. Our carefully curated selection of the top 10 software QA testing companies in the USA stands as a valuable repository, offering businesses the means to pinpoint organizations that exhibit demonstrable expertise, extensive experience, and a track record of high customer satisfaction in delivering exemplary software testing solutions, as corroborated by data gleaned from Clutch and G2.