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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241$1,000+250 - 999 employeesMilpitas, CALaunched in 2016, Appzlogic Inc is an IT staff augmentation company. The midsize Farmers Branch, Texas-based team offers IT staff augmentation, Web Development, Mobile App Development, Application Testing, and more.Read More
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Harvard Business SchoolIndustries
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242$10,000+1,000 - 9,999 employeesMenlo Park, CATrantor Inc. Is an app development company launched in 2012. Their large team is located in Menlo Park, California; Chandigarh, India; Vancouver, Canada and Heredia, Costa Rica. Their services include Mobile App Development, Custom Software Development, Web Development, BI & big data consulting & SI, and more.Read More
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GenpactIndustries
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243Undisclosed50 - 249 employeesWalnut Creek, CAASD Global-Public Sector is a software development firm in Walnut Creek, California. They specialize in Custom Software Development and ERP consulting and SI.Read More
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244Undisclosed2 - 9 employeesStockton, CASolon Innovations LLC. Is a small user experience design agency established in 2018. Their services include UX/UI Design and Graphic Design.Read More
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245Undisclosed2 - 9 employeesLos Angeles, CALaunched in 2021, One River Consulting Inc, a small software development company, is headquartered in Los Angeles, California. Their team offers Custom Software Development and Web Development.Read More
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246$10,000+50 - 249 employeesLos Angeles, CAPingle Studio is a mobile app development firm established in 2007. Their services include Mobile App Development and Custom Software Development.Read More
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247$50,000+1,000 - 9,999 employeesSan Jose, CAIoT development company eInfochips - an Arrow company was launched in 1994. The company focuses on IoT development and cloud consulting & SI.Read More
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248Undisclosed50 - 249 employeesSan Francisco, CAUXCam, a Conversion Optimization company, was launched in 2014. They specializes in Conversion Optimization and UX/UI Design.Read More
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249Undisclosed50 - 249 employeesSan Francisco, CAIn San Francisco, California and Paris, France, TrustInSoft is a midsize data analytics company. Their services include BI & big data consulting & SI and Cybersecurity.Read More
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250Undisclosed50 - 249 employeesSanta Clara, CAFounded in 2007, Neova Solutions is a midsize Santa Clara, California-based Robotics Process Automation company. Their services include Robotics Process Automation and DevOps Managed Services.Read More
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251Undisclosed10 - 49 employeesPalo Alto, CAUnleash is a small DevOps Managed Services company launched in 2019. Their team provides DevOps Managed Services and Custom Software Development.Read More
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252Undisclosed10 - 49 employeesLong Beach, CAEnsymbios, Inc. Is an IT strategy consulting company. The team offers IT strategy consulting and CRM consulting and SI and is based in Long Beach, California.Read More
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253Undisclosed10 - 49 employeesIrvine, CAUX design company Avente, Inc. Was founded in 2017. The firm specializes in UX/UI Design and IT managed services, and is small.Read More
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254Undisclosed10 - 49 employeesLaguna Beach, CADevBird is a small Laguna Beach, California-based graphic design company. Their services include Graphic Design and cloud consulting & SI.Read More
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255Undisclosed50 - 249 employeesSan Jose, CATestin Ltd. Is a Beijing, China-based Application Testing company. Launched in 2007, the team provides Application Testing and cloud consulting & SI.Read More
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256Undisclosed50 - 249 employeesSan Francisco, CAUrtheCast is a custom software development company. Located in Vancouver, Canada and San Francisco, California, the team focuses on Custom Software Development and Mobile App Development.Read More
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257$50,000+250 - 999 employeesPalo Alto, CARead More
InApp was founded in 2000 and currently has 300+ employees. Headquartered in Trivandrum, India, their services include web development, custom software development, and mobile app development. They also have another location in Palo Alto, Calif.
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258Undisclosed250 - 999 employeesPleasanton, CACriticalRiver Inc. Is a cloud consulting & SI company founded in 2014. The team focuses on cloud consulting & SI and IT managed services and is in Pleasanton, California and Hyderabad, India.Read More
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259$10,000+10 - 49 employeesSan Francisco, CAMINDFLARES, a small Market Research company, is headquartered in Dubai, United Arab Emirates and Antelias, Lebanon. Their services include Market Research and UX/UI Design.Read More
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260$25,000+250 - 999 employeesSan Francisco, CARobosoft Technologies Inc. Is a San Francisco, California-based app development company. They offer Mobile App Development, UX/UI Design, Web Development, Custom Software Development, and more and were launched in 1996.Read More
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Warner Bros. Discovery HSBC McDonalds Mercury FinanceIndustries
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261$5,000+50 - 249 employeesSan Mateo, CABased in San Mateo, California and Lucknow, India, STPL IT Solutions is a web design agency. They offer Web Design and UX/UI Design.Read More
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262Undisclosed50 - 249 employeesSan Jose, CAMumba Technologies is an IT strategy consulting company. Launched in 2010, the team offers IT strategy consulting and BI & big data consulting & SI.Read More
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263Undisclosed50 - 249 employeesSan Francisco, CAUniform Systems, Inc. Is a CRM consulting and SI company. Based in San Francisco, California and Berlin, Germany, their team focuses on CRM consulting and SI and Custom Software Development.Read More
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264Undisclosed1,000 - 9,999 employeesPlano, TXRead More
ValueLabs is a global business technology services and solutions provider based in Hyderabad, India with over 25 offices worldwide in the US, Europe, and Asia. Founded in 1997, ValueLabs' team of over 5,000 employees provides non-voice BPO/back office services and voice/call center capabilities.
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265Undisclosed10 - 49 employeesSunnyvale, CA360logica Software Testing Services is a Noida, India-based Application Testing company. The team provides Application Testing and Custom Software Development.Read More
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266Undisclosed50 - 249 employeesLos Angeles, CALeo Technosoft is a web design agency based in Pune, India and Orlando, Florida. The team specializes in Web Design and Web Development.Read More
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267Undisclosed1,000 - 9,999 employeesSanta Clara, CAATMECS Global Inc is a Market Research company. They provide Market Research and BI & big data consulting & SI and were established in 2013.Read More
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268Undisclosed50 - 249 employeesSan Francisco, CAPublift is a Blackrock, Ireland-based Advertising company. Established in 2015, the team focuses on Advertising and Application Testing.Read More
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269Undisclosed50 - 249 employeesSan Jose, CAEstablished in 1980, Edvenswa Enterprises is a midsize mobile app development company. Their team offers Mobile App Development and Robotics Process Automation.Read More
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270$10,000+50 - 249 employeesManhattan Beach, CAExist Global is a software development firm. The agency is located in Pasig, Philippines and Manhattan Beach, California. Their services include Custom Software Development and Application Testing.Read More
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