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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1591Undisclosed50 - 249 employeesCampbell, CANextbrick Inc. Is a Content Marketing company. The midsize Campbell, California-based team focuses on Content Marketing and cloud consulting & SI. The company was launched in 2019.Read More
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1592Undisclosed50 - 249 employeesSan Jose, CABetaSoft Inc. Is a cloud consulting & SI company. Their midsize team of employees is based in San Jose, California. Their team provides cloud consulting & SI and Application Testing.Read More
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1593Undisclosed50 - 249 employeesMountain View, CAMadKudu, a Business Consulting company, focuses on Business Consulting and CRM consulting and SI. The company is in Mountain View, California.Read More
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1594Undisclosed1,000 - 9,999 employeesCosta Mesa, CAARC Document Solutions is a large Digital Strategy company based in Gainesville, Florida and Costa Mesa, California. The team provides Digital Strategy and IT managed services.Read More
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1595Undisclosed250 - 999 employeesSan Francisco, CALaunched in 2004, A5 is a cloud consulting & SI company. Headquartered in San Francisco, California and Toronto, Canada, the team provides cloud consulting & SI and CRM consulting and SI.Read More
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1596$25,000+50 - 249 employeesSan Francisco, CAInnovify is an artificial intelligence development company. Founded in 2011, the midsize agency is located in London, England; San Francisco, California; Austin, California and New York, New York. Their services include Artificial Intelligence, AI Consulting, Custom Software Development, IT strategy consulting, and more.Read More
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ARM INCIndustries
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1597$10,000+50 - 249 employeesBurbank, CABOSC Tech Labs Private Limited is an artificial intelligence development company. Their midsize team is located in Gandhinagar, India and Burbank, California. Their services include Artificial Intelligence, Custom Software Development, AI Agents, Generative AI, and more. The firm was founded in 2019.Read More
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1598$10,000+50 - 249 employeesFullerton, CAFounded in 2009, Pegasus One is a business intelligence company. The firm offers BI & big data consulting & SI, cloud consulting & SI, Custom Software Development, Mobile App Development, and more and has a midsize team. The firm is located in Fullerton, California and Mumbai, India.Read More
Clients
Toshiba Disney City National Bank HondaIndustries
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1599$1,000+10 - 49 employeesSan Francisco, CAOddience is an IT strategy consulting company. They are headquartered in Lagos, Nigeria and San Francisco, California, and their services include IT strategy consulting and CRM consulting and SI.Read More
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1600$1,000+1,000 - 9,999 employeesBelmont, CATectura , a large ERP consulting and SI company, is in Belmont, California and Bengaluru, India. The team offers ERP consulting and SI.Read More
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1601Undisclosed50 - 249 employeesLong Beach, CAStimulus Technologies, a cloud consulting & SI and IT managed services company, provide cloud consulting & SI and IT managed services. They were founded in 1995.Read More
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1602Undisclosed10 - 49 employeesSanta Monica, CAMobolize is a Santa Monica, California-based CRM consulting and SI company. Their services include CRM consulting and SI and ERP consulting and SI.Read More
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1603Undisclosed10 - 49 employeesSan Francisco, CAZData Inc. Is a data analytics company. Headquartered in San Francisco, California, the firm was established in 2012. Their services include BI & big data consulting & SI.Read More
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1604$10,000+50 - 249 employeesSan Ramon, CAIntuz, an AI firm, was launched in 2008. Their midsize team is based in San Ramon, California; Ahmedabad, India and San Francisco, California. Their services include Artificial Intelligence, Custom Software Development, AI Agents, and cloud consulting & SI.Read More
Clients
Bosch Mercedes AMG Fortress Power French FloristIndustries
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1605$5,000+2 - 9 employeesSan Diego, CAAMA Networks is a cloud consulting & SI company. Headquartered in San Diego, California, the team focuses on cloud consulting & SI and IT managed services.Read More
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1606$5,000+10 - 49 employeesWalnut Creek, CAWebfortis is an ECM consulting and SI company in Walnut Creek, California. The team offers ECM consulting and SI and BI & big data consulting & SI.Read More
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1607Undisclosed10 - 49 employeesManhattan Beach, CAECM consulting and SI company Network Solutions Provider was launched in 2005. The team provides ECM consulting and SI and cloud consulting & SI and is in Manhattan Beach, California.Read More
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1608$1,000+2 - 9 employeesCovina, CAFlatly is a big data company. They are located in Covina, California and have small team. They offer BI & big data consulting & SI.Read More
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1609$5,000+2 - 9 employeesLos Angeles, CAASIX Web Development is a web design agency founded in 2012. In Los Angeles, California, the team provides Web Design and UX/UI Design.Read More
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1610$25,000+10 - 49 employeesLos Angeles, CARead More
Staffing company nexus IT group is headquartered in Overland Park, Kansas; Atlanta, Georgia; Austin, Texas and Boston, Massachusetts. The small agency was established in 2010. Their services include Staffing, IT staff augmentation, and Recruiting.
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1611Undisclosed10 - 49 employeesAtascadero, CARose Business Solutions is an ERP consulting and SI company in Atascadero, California. They offer ERP consulting and SI and CRM consulting and SI.Read More
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1612Undisclosed10 - 49 employeesIrvine, CAContivio, a CRM consulting and SI and ERP consulting and SI company, was launched in 2000. The small team offers CRM consulting and SI and ERP consulting and SI.Read More
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1613Undisclosed2 - 9 employeesLivermore, CABi101 Consultants is an unified communications consulting & SI company located in Livermore, California. Their services include unified communications consulting & SI and ERP consulting and SI.Read More
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1614$5,000+2 - 9 employeesEscondido, CAIT TechPros, Inc., an IT managed services company, was established in 2006. The team focuses on IT managed services and cloud consulting & SI.Read More
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1615$5,000+10 - 49 employeesSan Jose, CACloud consulting & SI and IT managed services company iStreet Solutions, LLC was founded in 2004. Based in San Jose, California, the team offers cloud consulting & SI and IT managed services.Read More
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1616Undisclosed50 - 249 employeesIrvine, CABased in Irvine, California, Embee Technologies is an IT strategy consulting company. They provide IT strategy consulting and IT managed services.Read More
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1617$1,000+2 - 9 employeesLos Angeles, CAVictor Orly Consulting is an IT managed services company. Launched in 1999, the agency specializes in IT managed services and Cybersecurity.Read More
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1618Undisclosed50 - 249 employeesPleasanton, CAIT managed services company BDRSuite Backup & Replication is based in Pleasanton, California. They offer IT managed services.Read More
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1619$1,000+10 - 49 employeesLos Angeles, CABekker Compliance Consulting Partners, LLC is a small Tampa, Florida-based Business Consulting company. The team specializes in Business Consulting and Corporate Training & Coaching.Read More
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1620$1,000+10 - 49 employeesSan Diego, CACC Tech Consulting LLC is a cloud consulting & SI company. The Addis Ababa, Ethiopia-based company provides cloud consulting & SI and IT strategy consulting.Read More
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