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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31$25,000+1,000 - 9,999 employeesSan Mateo, CAERP consulting and SI company LogiGear was established in 1994. The team focuses on ERP consulting and SI and Custom Software Development.Read More
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CommScopeIndustries
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32$1,000+2 - 9 employeesLaguna Beach, CASoftware 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.Read More
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33$10,000+50 - 249 employeesSan Francisco, CAFounded in 2015, Bytex Technologies is a website development firm. Their services include Web Development and Enterprise App Modernization.Read More
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34$10,000+250 - 999 employeesWalnut Creek, CASolvd, Inc. Is an IT staff augmentation company. The midsize team is based in Walnut Creek, California; Chernivtsi, Ukraine; Tandil, Argentina and Kyiv, Ukraine. Their services include IT staff augmentation, Custom Software Development, Web Development, and Application Testing.Read More
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NerdWalletIndustries
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35$1,000+250 - 999 employeesEmeryville, CABugRaptors is a midsize Application Testing company. The Sahibzada Ajit Singh Nagar, India-based company was launched in 2016. Their services include Application Testing and Cybersecurity.Read More
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FDIIndustries
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36$25,000+50 - 249 employeesBeverly Hills, CAWeb design company Friflex is located in Beverly Hills, California. Their services include Web Design and UX/UI Design.Read More
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37Undisclosed1,000 - 9,999 employeesSan Francisco, CATest IO is an Application Testing company. In San Francisco, California and Berlin, Germany, the agency focuses on Application Testing.Read More
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38Undisclosed250 - 999 employeesSan Jose, CAPerformance Lab is an Application Testing company launched in 2008. Their team focuses on Application Testing.Read More
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39Undisclosed250 - 999 employeesSan Francisco, CASauce Labs is an Application Testing company. The San Francisco, California-based team offers Application Testing.Read More
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40Undisclosed10 - 49 employeesSan Francisco, CAApplication Testing company Spiral QA is in San Francisco, California. They offer Application Testing.Read More
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41Undisclosed2 - 9 employeesPalo Alto, CAApplication Testing company BlazeRunner provides Application Testing. They were founded in 2019.Read More
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42Undisclosed50 - 249 employeesSunnyvale, CALaunched in 2015, HeadSpin is an Application Testing company. The agency offers Application Testing.Read More
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43Undisclosed50 - 249 employeesSunnyvale, CAFutureDial, Incorporated is an Application Testing company. The firm is located in Sunnyvale, California. Their team provides Application Testing.Read More
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44Undisclosed10 - 49 employeesTorrance, CAFounded in 2011, DIGITAL Hearts USA Inc. Is an Application Testing company. The agency specializes in Application Testing.Read More
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45Undisclosed10 - 49 employeesSanta Clara, CA3Qi Labs is an Application Testing company launched in 2010. Their team specializes in Application Testing.Read More
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46Undisclosed1,000 - 9,999 employeesPleasanton, CALaunched in 2002, QASource, a large Application Testing company, is headquartered in Pleasanton, California. Their services include Application Testing.Read More
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47Undisclosed10 - 49 employeesNovato, CAApplication Testing company Beta Breakers was launched in 1981. The team specializes in Application Testing.Read More
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48Undisclosed10 - 49 employeesSan Francisco, CAApplication Testing company Porter Consulting LLC is in San Francisco, California. They offer Application Testing.Read More
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49Undisclosed10 - 49 employeesSan Jose, CAInnovative Circuits Engineering, Inc. Is an Application Testing company. The team provides Application Testing, and the firm is located in San Jose, California.Read More
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50$10,000+10 - 49 employeesSan Francisco, CAEchoUser is an user experience agency. They are headquartered in San Francisco, California and Washington, District of Columbia, and their services include UX/UI Design and Application Testing.Read More
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51$1,000+50 - 249 employeesSan Jose, CAApp Wave INC is a web development firm. Founded in 2020, the team specializes in Web Development and Mobile App Development. The company is headquartered in San Jose, California.Read More
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52Undisclosed10 - 49 employeesPalo Alto, CABlazeMeter is an Application Testing company. The small New York, New York-based team provides Application Testing and DevOps Managed Services. The agency was established in 2011.Read More
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53Undisclosed10 - 49 employeesLos Angeles, CARead More
QualityWorks Consulting Group is a software development company headquartered in Los Angeles with an office in Jamaica. Founded in 2010, the team of 28 specializes in application testing, other IT consulting and SI, and application management and support. They work mainly with small businesses, focusing on financial services, healthcare and medical, and telecommunications.
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dpdIndustries
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54$25,000+10 - 49 employeesSanta Monica, CALaneways Software and Digital Pty Ltd is a small software development company. The Port Melbourne, Australia-based company was founded in 2012. Their services include Custom Software Development, UX/UI Design, Application Management & Support, E-Commerce Development, and more.Read More
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Quantum UnderwritingIndustries
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55Undisclosed50 - 249 employeesCupertino, CASoftsmith is an Application Testing company in Cupertino, California. Their services include Application Testing and Custom Software Development.Read More
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56Undisclosed10 - 49 employeesSan Jose, CASolution Sources Programming, an Application Testing company, was launched in 1990. The small team provides Application Testing and Custom Software Development.Read More
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57Undisclosed10 - 49 employeesSaratoga, CAApplication Testing company ConformIQ is located in Saratoga, California. They focus on Application Testing and Artificial Intelligence.Read More
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58$1,000+1,000 - 9,999 employeesLondon, EnglandRead More
Qualimatrix Technologies is a IT staff augmentation and application testing company launched in 2020. The midsize Bengaluru, India-based team specializes in IT staff augmentation and application testing.
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59$5,000+10 - 49 employeesIrwindale, CAEstablished in 2019, ProfSquad is an Application Testing company. Their small team is in Irwindale, California and specializes in Application Testing and Conversion Optimization.Read More
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DripHydrationIndustries
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60$1,000+50 - 249 employeesSan Francisco, CAMechlin Technologies LLC is a midsize graphic design company located in San Francisco, California. The team provides Graphic Design and Custom Software Development.Read More
Industries
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