Top 100 Software Testing Companies in California
The Best of December 2025Looking for a top software QA company in California?
Hiring a software testing company is a necessity to both test and improve the services your company offers, especially in an increasingly digital world.
To assist you in your search for a partner, we’ve compiled this list of the top software testing companies in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best California Software QA Companies
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$5,000+50 - 249 employeesCluj-Napoca, RomaniaRead More
BetterQA is an Application Testing company. Their midsize team is located in Cluj-Napoca, Romania. Their services include Application Testing, other IT consulting and SI, and Application Management & Support. The company was launched in 2018.
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$5,000+50 - 249 employeesSeattle, WARead More
QA Wolf, an application testing company, was launched in 2019. The company provides application testing and has a small team.
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181Undisclosed50 - 249 employeesCitrus Heights, CALogicTree IT Solutions is a mobile app development company. They offer Mobile App Development and Application Testing and were founded in 2007.Read More
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182$5,000+2 - 9 employeesSan Jose, CARobert Nicholson Consulting is a social media marketing agency. Launched in 2016, the company specializes in Social Media Marketing and Search Engine Optimization.Read More
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183Undisclosed250 - 999 employeesSunnyvale, CAMaantic Inc is a midsize web design company launched in 2009. Their team specializes in Web Design and UX/UI Design.Read More
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184Undisclosed250 - 999 employeesCupertino, CAR4Solutions Inc is a big data analytics company. The midsize Cupertino, California-based team specializes in BI & big data consulting & SI and cloud consulting & SI. The company was founded in 2007.Read More
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185Undisclosed250 - 999 employeesDublin, CAFounded in 2004, TRUGlobal is a midsize IT strategy consulting company. Their team provides IT strategy consulting and BI & big data consulting & SI.Read More
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186Undisclosed250 - 999 employeesIrvine, CALaunched in 2015, Arctiq is a midsize IT strategy consulting company. Their services include IT strategy consulting and unified communications consulting & SI.Read More
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187Undisclosed250 - 999 employeesDublin, CAAlcor Solutions, Inc., an IT strategy consulting company, was established in 2008. The midsize team offers IT strategy consulting and cloud consulting & SI.Read More
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188Undisclosed250 - 999 employeesIrvine, CAInterra Information Technologies is a cloud consulting & SI company. Founded in 1996, their team focuses on cloud consulting & SI and Cybersecurity.Read More
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189Undisclosed50 - 249 employeesCupertino, CAAppPerfect Corp is a custom software development firm. Headquartered in Cupertino, California, their team focuses on Custom Software Development and Robotics Process Automation.Read More
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190Undisclosed50 - 249 employeesSanta Ana, CARencata, a midsize IT strategy consulting company, is headquartered in Santa Ana, California and Puducherry, India. The team focuses on IT strategy consulting and BI & big data consulting & SI.Read More
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191Undisclosed50 - 249 employeesFremont, CADew Software is an IT strategy consulting company founded in 1997. Their team offers IT strategy consulting and BI & big data consulting & SI.Read More
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192Undisclosed2 - 9 employeesLivermore, CALuitporia Software Consult is a CRM consulting and SI company located in Livermore, California. They provide CRM consulting and SI and IT managed services.Read More
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193Undisclosed2 - 9 employeesSan Diego, CACutler Engineering & Technology Services LLC is a small Cybersecurity company based in San Diego, California. Their services include Cybersecurity and IT managed services.Read More
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194Undisclosed2 - 9 employeesLos Angeles, CAECommerce Cosmos is a Fort Lauderdale, Florida-based social media marketing agency. They provide Social Media Marketing and Email Marketing and were launched in 2013.Read More
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195Undisclosed2 - 9 employeesLos Angeles, CASystems Programming Consultants, Inc. Is a software development firm. Established in 1982, their team specializes in Custom Software Development and Web Development.Read More
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196Undisclosed2 - 9 employeesIrvine, CABizTech2go is a business intelligence company. They are based in Irvine, California. Their team specializes in BI & big data consulting & SI and ERP consulting and SI.Read More
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197Undisclosed2 - 9 employeesMilpitas, CACygne Noir Cyber, LLC, a Cybersecurity company, was established in 2023. The team specializes in Cybersecurity and IT managed services.Read More
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198Undisclosed2 - 9 employeesHuntington Beach, CAProticom is a custom software development firm. Based in Huntington Beach, California, the company was launched in 1996. Their services include Custom Software Development and Application Testing.Read More
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199Undisclosed2 - 9 employeesCarlsbad, CAFounded in 1999, Lynch Interactive, Inc. Is a business intelligence company. The agency provides BI & big data consulting & SI and IT managed services.Read More
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200Undisclosed2 - 9 employeesCulver City, CALocated in Culver City, California, Bright Defense, LLC. Is a Cybersecurity company. Their services include Cybersecurity and IT managed services.Read More
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201Undisclosed2 - 9 employeesLos Angeles, CAXeneX Inc. Is a Cybersecurity company. In Los Angeles, California, their team provides Cybersecurity and IT managed services.Read More
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202$5,000+50 - 249 employeesIrvine, CAWeblineGlobal is an application development company launched in 1999. Their midsize team is located in Irvine, California. Their services include mobile app development, ux/ui design, web development, e-commerce development, and more.Read More
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203$1,000+2 - 9 employeesSacramento, CAParah Group is a Sacramento, California-based Conversion Optimization company. They offer Conversion Optimization and UX/UI Design and were launched in 2022.Read More
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204Undisclosed2 - 9 employeesSan Francisco, CAConichiwa is a Business Consulting company launched in 2017. Their services include Business Consulting and Custom Software Development.Read More
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205Undisclosed250 - 999 employeesSan Francisco, CAMidsize Application Testing company Testing Hero, is headquartered in San Francisco, California and Hanoi, Vietnam. The team specializes in Application Testing and Web Development.Read More
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206$100,000+250 - 999 employeesSan Jose, CASP Software (P) Limited, a software development firm, is headquartered in Hyderabad, India and San Jose, California. The team specializes in Custom Software Development and Artificial Intelligence.Read More
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207Undisclosed10 - 49 employeesCorona, CASunztech Intl, a web design company, is located in Corona, California. Their services include Web Design and UX/UI Design.Read More
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208Undisclosed10 - 49 employeesCorte Madera, CAApplication Testing company Critical Logic is headquartered in Corte Madera, California. Their services include Application Testing and Custom Software Development.Read More
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209$1,000+2 - 9 employeesSan Francisco, CALaunched in 2015, CoreTeam.io is a software development company. Their services include Custom Software Development and Web Development.Read More
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210$5,000+50 - 249 employeesSimi Valley, CAQualityLogic is an Application Testing company launched in 1986. In Boise, Idaho; Simi Valley, California and Oklahoma City, Oklahoma, their midsize team focuses on Application Testing.Read More
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