Top 100 IT Services Companies in California
The Best of December 2025Looking for a top IT services company in California?
For your company to grow, it is essential to choose the best technology. Hiring an innovative IT services provider is the easiest way to ensure that you are making the best use of technology, increasing sales, and staying one step ahead of the competition.
To assist you in your search for a partner, we’ve compiled this list of the top IT consultants in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
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List of the Best California IT Companies
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$10,000+50 - 249 employeesL'viv, UkraineRead More
Founded in 2019, Uinno is an artificial intelligence firm. The midsize team specializes in Artificial Intelligence, Custom Software Development, Low/No Code Development, UX/UI Design, and more. The company is based in L'viv, Ukraine; Tallinn, Estonia; Kingston upon Thames, England and Zaporizhzhia, Ukraine.
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$1,000+50 - 249 employeesNaperville, ILBetterWorld Technology is a midsize IT managed services company launched in 2003. Their services include IT managed services, Cybersecurity, IT strategy consulting, and Compliance Consulting. The company is headquartered in Naperville, Illinois; Naperville, Illinois; Winter Park, Florida and Denver, Colorado.Read More
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1741$25,000+50 - 249 employeesSan Jose, CAAimesoft is an artificial intelligence development company. They are located in San Jose, California and Hanoi, Vietnam. Their team provides Artificial Intelligence and Generative AI.Read More
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1742Undisclosed50 - 249 employeesMilpitas, CAIT strategy consulting company cPacket is headquartered in Portland, Oregon and Milpitas, California. They focus on IT strategy consulting and cloud consulting & SI.Read More
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1743$25,000+10 - 49 employeesLos Angeles, CAWebsite development firm Nurdsoft focuses on Web Development and Mobile App Development. They are in Los Angeles, California and Gurugram, India.Read More
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1744Undisclosed10 - 49 employeesPortland, ORSmall SEO services firm Sariya IT, is in Gazipur, Bangladesh; Portland, Oregon; Fullerton, California and Dallas, Texas. They focus on Search Engine Optimization, Pay Per Click, Web Development, Graphic Design, and more and were founded in 2015.Read More
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1745$5,000+10 - 49 employeesSan Diego, CAMedAccess is a small San Diego, California-based Advertising company. The team provides Advertising and Branding.Read More
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1746$10,000+10 - 49 employeesLos Altos, CAAvaamo is an artificial intelligence firm. Founded in 2014, the team focuses on Artificial Intelligence and IoT development. The agency is in Los Altos, California and India.Read More
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1747Undisclosed10 - 49 employeesRancho Cucamonga, CACRM consulting and SI company INDEVA is in Rancho Cucamonga, California. They focus on CRM consulting and SI and Email Marketing and were founded in 1998.Read More
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1748Undisclosed10 - 49 employeesLos Angeles, CAZobrist Software Group, Inc. Is a Los Angeles, California-based e-commerce development company. Launched in 2000, the team focuses on E-Commerce Development and IT managed services.Read More
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1749Undisclosed10 - 49 employeesConcord, CACRM consulting and SI company SaaScend is based in Concord, California. The team specializes in CRM consulting and SI and Application Management & Support.Read More
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1750Undisclosed10 - 49 employeesFresno, CAMertech Data Systems, Inc. Is a small custom software development firm based in Pembroke Pines, Florida and Fresno, California. The team offers Custom Software Development and cloud consulting & SI.Read More
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1751Undisclosed10 - 49 employeesLos Altos, CAPractical SQA, an Application Testing company, is located in Los Altos, California. Their services include Application Testing and Mobile & App Marketing.Read More
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1752Undisclosed10 - 49 employeesWoodland, CAVarkasa Inc is an Application Testing company based in Woodland, California. Their services include Application Testing and IT strategy consulting.Read More
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1753Undisclosed10 - 49 employeesSan Diego, CAAdvantu is an Application Testing company. Their small team of employees is based in San Diego, California. Their team offers Application Testing and Custom Software Development.Read More
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1754Undisclosed10 - 49 employeesSan Ramon, CARobotics Process Automation company Autocene was launched in 2010. Headquartered in San Ramon, California, the team focuses on Robotics Process Automation and IT strategy consulting.Read More
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1755Undisclosed10 - 49 employeesCosta Mesa, CACrème Collective is a Costa Mesa, California-based branding company. They provide Branding and CRM consulting and SI and were established in 2013.Read More
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1756Undisclosed10 - 49 employeesMilpitas, CACrosslynx US LLC, a custom software development firm, is located in Milpitas, California. They offer Custom Software Development and Application Testing.Read More
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1757Undisclosed10 - 49 employeesPleasanton, CAHeadquartered in Pleasanton, California and Vadodara, India, Exaqode is a small UX design agency. The team focuses on UX/UI Design and IT strategy consulting.Read More
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1758Undisclosed10 - 49 employeesMenlo Park, CADiffbot is an artificial intelligence firm. Their small team is in Menlo Park, California. Their services include Artificial Intelligence and BI & big data consulting & SI.Read More
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1759Undisclosed10 - 49 employeesSan Jose, CALaunchable, Inc is a data analytics company. Located in San Jose, California, the team specializes in BI & big data consulting & SI and Custom Software Development.Read More
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1760Undisclosed10 - 49 employeesNewport Beach, CAInsellerate is a Sales Outsourcing company. The agency is headquartered in Newport Beach, California. Their services include Sales Outsourcing and Pay Per Click.Read More
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1761Undisclosed10 - 49 employeesLos Angeles, CAAloola.io is a PPC agency. Established in 2019, the agency is located in Los Angeles, California. Their team focuses on Pay Per Click and Search Engine Optimization.Read More
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1762Undisclosed10 - 49 employeesSan Francisco, CAPostHog, Inc. Is a Market Research company. Based in San Francisco, California, their team focuses on Market Research and BI & big data consulting & SI.Read More
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1763Undisclosed10 - 49 employeesLos Angeles, CAIKonnek is a big data company. They provide BI & big data consulting & SI and Corporate Training & Coaching and were founded in 2003.Read More
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1764Undisclosed10 - 49 employeesLos Angeles, CAHC Development is a Marketing Strategy company. The Los Angeles, California-based agency was launched in 2004. Their team provides Marketing Strategy and Email Marketing.Read More
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1765Undisclosed10 - 49 employeesValencia, CAFounded in 1988, ITAD Services is a pay per click company. The company provides Pay Per Click and IT managed services.Read More
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1766Undisclosed10 - 49 employeesLos Angeles, CAAutomatedView Technologies is a Los Angeles, California-based Digital Strategy company. Their services include Digital Strategy and BI & big data consulting & SI.Read More
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1767Undisclosed10 - 49 employeesArcadia, CAEcomPlus is a small branding agency. They focus on Branding and Pay Per Click and were established in 2017.Read More
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1768Undisclosed10 - 49 employeesSan Francisco, CA729 Solutions is a branding company. Based in San Francisco, California, the firm was established in 2003. Their services include Branding and IT managed services.Read More
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1769Undisclosed10 - 49 employeesLos Angeles, CADeRisk Technologies is an IT strategy consulting company. They were founded in 2020, and their services include IT strategy consulting and BI & big data consulting & SI.Read More
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1770$1,000+10 - 49 employeesSan Mateo, CABinstellar Technologies Pvt. Ltd. Is a small mobile application development company. Established in 2021, the agency is based in Ahmedabad, India and San Mateo, California. Their services include Mobile App Development, UX/UI Design, E-Commerce Development, Branding, and more.Read More
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Check out an IT Services Company in California with the most new reviews in the past 12 months.
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