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.
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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2341UndisclosedFreelancer employeesMill Valley, CAWilder Strategy Lab is a social media marketing company. The Mill Valley, California-based firm provides Social Media Marketing and Search Engine Optimization.Read More
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2342$5,000+1,000 - 9,999 employeesSalt Lake City, UTFounded in 1971, Merkle is a large CRM consulting and SI company. Their team focuses on CRM consulting and SI and Digital Strategy.Read More
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DellIndustries
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2343$1,000+50 - 249 employeesSanta Clarita, CARead More
Yashco Systems is a software company based in Hilliard, Ohio, and founded in 2000. With more than 50 employees, they are experts in web development, mobile app development, and IT managed services.
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2344Undisclosed250 - 999 employeesSan Mateo, CALohika is a software development company. Headquartered in San Mateo, California and Ukraine, Ukraine, the company provides Custom Software Development and Blockchain.Read More
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2345Undisclosed50 - 249 employeesEscondido, CAPrakat Solutions, a data analytics company, was established in 2009. The agency offers BI & big data consulting & SI and cloud consulting & SI.Read More
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2346Undisclosed1,000 - 9,999 employeesFremont, CARead More
Based in Bengaluru, India, Sonata Software is an IT strategy consulting company. The large firm was founded in 1986. Their team provides IT strategy consulting, BI & big data consulting & SI, cloud consulting & SI, ERP consulting and SI, and more.
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2347$5,000+250 - 999 employeesSan Diego, CAIT managed services company SHE Group is headquartered in Ludwigshafen am Rhein, Germany and Cluj-Napoca, Romania. Launched in 1987, the team provides IT managed services and IT strategy consulting.Read More
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BASFIndustries
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2348$1,000+250 - 999 employeesSan Jose, CAKsolves India Limited is a CRM consulting and SI company established in 2012. The company provides CRM consulting and SI, BI & big data consulting & SI, ERP consulting and SI, Web Development, and more and has a midsize team. The company is located in Noida, India; Pune, India; Indore, India and San Jose, California.Read More
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LTIIndustries
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2349$25,000+250 - 999 employeesOakland, CASoftware development company Tringapps was established in 2008. The firm focuses on Custom Software Development and cloud consulting & SI.Read More
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2350$50,000+1,000 - 9,999 employeesSaratoga, CARead More
Headquartered in L'viv, Ukraine; New York, New York; Saratoga, California and Bellevue, Washington, Sigma Software Group is a software development company. The large agency was established in 2002. Their services include Custom Software Development, Web Development, Mobile App Development, BI & big data consulting & SI, and more.
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VolvoIndustries
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2351$5,000+250 - 999 employeesSan Jose, CALuvina Software JSC is a cloud consulting & SI company headquartered in Hanoi, Cau Giay, Vietnam and Danang, Vietnam. They focus on cloud consulting & SI and CRM consulting and SI.Read More
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SIIndustries
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2352$25,000+250 - 999 employeesBeverly Hills, CAAltudo is a midsize New York, New York-based Marketing Strategy company. Launched in 1997, the team offers Marketing Strategy, Digital Strategy, Web Design, BI & big data consulting & SI, and more.Read More
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2353Undisclosed50 - 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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2354$10,000+1,000 - 9,999 employeesSan Ramon, CARead More
Neurealm is a Cybersecurity company. They specialize in Cybersecurity, Custom Software Development, Artificial Intelligence, Generative AI, and more and were founded in 1998. Their large team is headquartered in Princeton, New Jersey; San Ramon, California; Santa Clara, California and Chennai, India.
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2355$5,000+10 - 49 employeesPalo Alto, CARead More
Tessafold LLC is an application development company located in Palo Alto, California; Berlin, Germany; Jeddah, Saudi Arabia and Ciudad de México, Mexico. Founded in 2017, the small team specializes in Mobile App Development, Artificial Intelligence, UX/UI Design, cloud consulting & SI, and more.
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2356$5,000+50 - 249 employeesIrvine, CAIn Kirkland, Washington and Irvine, California, Covestic is an IT managed services company. Launched in 2001, the team offers IT managed services and cloud consulting & SI.Read More
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2357$5,000+1,000 - 9,999 employeesSan Jose, CAHappiest Minds Technologies is a business intelligence company. The large team is headquartered in Bengaluru, India; San Jose, California; Princeton, New Jersey and Mumbai, India. Their services include BI & big data consulting & SI, cloud consulting & SI, CRM consulting and SI, Application Management & Support, and more.Read More
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2358$100,000+50 - 249 employeesSan Jose, CAIntagleo Systems is a midsize Slough, United Kingdom-based custom software development firm. Founded in 2004, the team focuses on custom software development, IT staff augmentation, mobile app development, web development, and more.Read More
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2359Undisclosed50 - 249 employeesSanta Clarita, CAInfyStrat Software Services is an IoT development company. The Santa Clarita, California-based agency was established in 2015. Their services include IoT development and Artificial Intelligence.Read More
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2360$25,000+250 - 999 employeesMountain View, CAPRIJBS is a midsize IT staff augmentation company. They provide IT staff augmentation and IT strategy consulting and were established in 1997.Read More
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2361$10,000+250 - 999 employeesSan Jose, CARishabh Software is a software development company. They are located in Vadodara, India; Harrow, England; San Jose, California and Bengaluru, India and have a midsize team. Their services include Custom Software Development, Digital Engineering, BI & big data consulting & SI, cloud consulting & SI, and more. The firm was established in 1999.Read More
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LindeIndustries
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2362Undisclosed50 - 249 employeesFremont, CAInput Zero Technologies Pvt. Ltd. Is an IT strategy consulting company. The Fremont, California-based company focuses on IT strategy consulting and cloud consulting & SI.Read More
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2363$25,000+250 - 999 employeesMilpitas, CASoftware development firm Gadgeon Systems Inc. Is headquartered in Milpitas, California; Kochi, India; Aartselaar, Belgium and Kakkanad, India. The midsize company was launched in 2011. Their services include Custom Software Development, Product Design, Mobile App Development, IoT development, and more.Read More
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Kore WirelessIndustries
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2364Undisclosed1,000 - 9,999 employeesFort Worth, TXFORVIS is an Accounting company established in 1923. Their team offers Accounting and Business Consulting.Read More
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2365Undisclosed250 - 999 employeesLos Angeles, CASaguaro Technology, a cloud consulting & SI company, was established in 1999. The midsize team offers cloud consulting & SI and Custom Software Development.Read More
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2366Undisclosed50 - 249 employeesRamona, CAC3IT Solutions is a midsize Ramona, California-based AI firm. The team offers Artificial Intelligence and Robotics Process Automation.Read More
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2367Undisclosed50 - 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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2368$5,000+250 - 999 employeesRedwood City, CAEquinix EMEA, an IT managed services company, focus on IT managed services and IT strategy consulting. They were established in 1998.Read More
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2369Undisclosed250 - 999 employeesSanta Clara, CAIn Santa Clara, California and Islamabad, Pakistan, Emumba is an UX design company. The team offers UX/UI Design and BI & big data consulting & SI.Read More
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2370Undisclosed50 - 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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