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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31Undisclosed50 - 249 employeesCalabasas, CABased in Calabasas, California, Faye is a CRM consulting and SI company. Established in 2010, the midsize team provides CRM consulting and SI, Low/No Code Development, Custom Software Development, and AI Consulting.Read More
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32$5,000+50 - 249 employeesCosta Mesa, CARead More
Helixstorm is an IT managed services company. The midsize Costa Mesa, California-based team specializes in IT managed services, IT strategy consulting, and cloud consulting & SI. The company was established in 2007.
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O'NeillIndustries
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33$10,000+50 - 249 employeesBeverly Hills, CARead More
Founded in 2010, Mission is an AWS managed services partner based in El Segundo, Calif. Their team of 83 employees specializes in IT managed services, cloud consulting and SI, and enterprise app modernization.
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Boston Celtics -
34$5,000+10 - 49 employeesRedondo Beach, CARead More
SugarShot is an IT company headquartered in Los Angeles. The company was founded in 2018, and their 11 employees mostly provide IT managed services, specifically security, help desk, disaster recovery, and network segments.
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EaturnaIndustries
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35$5,000+10 - 49 employeesEl Segundo, CARead More
Technology Management Concepts is an IT consulting firm based in Marina Del Rey, Calif. it was founded in 1984, and has 38 employees. Technology Management Concepts specializes in ERP consulting & SI, application management & support and CRM consulting and SI.
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RobeksIndustries
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36$1,000+50 - 249 employeesCastaic, CARead More
Satva Solutions is a web development company headquartered in Santa Clarita, Calif. Their team of fewer than 50 employees operates out of Ahmedabad, India offices as well, serving small and midmarket businesses across a range of industries. They were founded in 2013.
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RenaultIndustries
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37$5,000+50 - 249 employeesSan Diego, CARead More
Managed Solution provides integrated IT services to small to midmarket clients across a variety of sectors. Founded in 2002 and headquartered in San Diego, CA, their team consists of approximately 20 employees. They work to solve business challenges, primarily by way of cloud consulting, SI, and IT product management.
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Microsoft, US SMB Champions Club, SMB Marketer of the YearIndustries
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38Undisclosed10 - 49 employeesSan Jose, CARead More
DataEndure is a digital security company based in San Jose, Calif. and founded in 1983. Their team of 36 employees specializes in cybersecurity, cloud consulting, and IT managed services for enterprise and midmarket candidates in the IT, financial services, and healthcare industries.
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DataEndure works with a number of customers across industriesIndustries
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39Undisclosed50 - 249 employeesSan Diego, CARead More
Interlaced.io is a San Diego, California-based IT strategy consulting and IT managed services company. They focus on IT strategy consulting and IT managed services and were launched in 2009.
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40$1,000+50 - 249 employeesSan Francisco, CARead More
MondayCall is a cloud and CRM consulting firm based in San Francisco. Their team of about 150 serves clients of all sizes across a range of industries. Additional services include SI and IT managed services. They were founded in 2009.
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GoogleIndustries
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41$1,000+10 - 49 employeesIrvine, CARead More
KME Systems is a small IT managed services company launched in 1993. Their services include IT managed services, IT strategy consulting, and cloud consulting & SI. The company is headquartered in Lake Forest, California.
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42Undisclosed10 - 49 employeesCayucos, CARead More
Cloud consulting & SI company HiView Solutions is in Cayucos, California. The small team provides cloud consulting & SI, IT managed services, IT strategy consulting, and IT staff augmentation and was founded in 2016.
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43$10,000+10 - 49 employeesSan Francisco, CAXterra Solutions, an IT managed services company, was founded in 2009. The firm focuses on IT managed services, Cybersecurity, and cloud consulting & SI and has a small team. The firm is in San Francisco, California.Read More
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44$50,000+50 - 249 employeesSanta Monica, CARead More
Sidebench is a strategy, design, and development consultancy with a team of 70+ experts headquartered in Los Angeles. Founded in 2012, Sidebench caters to enterprise companies and new ventures seeking the management consultants & experienced founders, the technical chops of systems architects, and a UX-first approach. Sidebench provides app and web development, UX/UI design, web design, and app testing via a fully integrated product delivery team.
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Microsoft CorporationIndustries
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45$1,000+10 - 49 employeesPasadena, CABased in Pasadena, California; Grapevine, Texas and Denver, Colorado, Techmedics is an IT managed services company. The company specializes in IT managed services, IT strategy consulting, Cybersecurity, and cloud consulting & SI and is small.The company was launched in 1999.Read More
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46$5,000+10 - 49 employeesCarlsbad, CADynamic Data is a small data analytics company. Established in 2019, the team specializes in BI & big data consulting & SI, Artificial Intelligence, and digital strategy. The agency is in Carlsbad, California.Read More
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47$5,000+2 - 9 employeesLos Angeles, CABased in Los Angeles, California, Lead Love is a small CRM consulting and SI company. Founded in 2017, the team offers CRM consulting and SI, IT managed services, Account-Based Marketing, Conversion Optimization, and more.Read More
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SyndesusIndustries
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48$10,000+10 - 49 employeesBerkeley, CARead More
Beyond the Arc is a data analytics company based in Berkeley, Calif. Founded in 2001 and currently employing about nine people, Beyond the Arc provides a mix of data analytics, IT consulting, and digital marketing services. In particular, they specialize in Business Intelligence (BI), system integration (SI), big data, Artificial Intelligence (AI), and marketing strategy. Their primary clients are enterprises in the financial services industry.
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IBMIndustries
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49$10,000+50 - 249 employeesMumbai, IndiaIn Long Beach, California; Mumbai, India; Earley, England and San Francisco, California, Cymetrix Software is a CRM consulting and SI company. The midsize team focuses on CRM consulting and SI, BI & big data consulting & SI, Custom Software Development, AR/VR development, and more. The company was founded in 2016.Read More
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50$5,000+50 - 249 employeesOakland, CARead More
Xantrion is a cybersecurity company. They are in Oakland, California and have a midsize team. The agency offers cybersecurity, IT managed services, cloud consulting & SI, and IT strategy consulting.
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51$5,000+10 - 49 employeesLos Angeles, CARead More
Headquartered in Redondo Beach, California, IT Accuracy is a cloud consulting & SI company. The small company was launched in 2007. Their team specializes in cloud consulting & SI, IT managed services, cybersecurity, IT strategy consulting, and more.
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Farmer's InsuranceIndustries
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52$10,000+50 - 249 employeesSan Francisco, CAAzumo, an artificial intelligence company, was established in 2016. Their midsize team is headquartered in San Francisco, California and Rosario, Argentina. The firm provides Artificial Intelligence, Custom Software Development, Mobile App Development, and BI & big data consulting & SI.Read More
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Twitter Facebook Omnicom Discovery ChannelIndustries
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53$5,000+10 - 49 employeesBeverly Hills, CARead More
RGB Projects is an IT services provider based in Beverly Hills, California. Founded in 2006, their team of about 20 work with mainly enterprise and mid-market clients. They specialize in ECM consulting and SI, IT managed services, and application management and support.
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54$10,000+50 - 249 employeesSan Francisco, CAScaleTech Solutions, a custom software development company, was launched in 2017. The agency focuses on Custom Software Development, IT managed services, Mobile App Development, E-Commerce Development, and more and has a midsize team. The agency is in San Francisco, California; Frankfurt am Main, Germany and Ahmedabad, India.Read More
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55$50,000+250 - 999 employeesSan Francisco, CARead More
3Q Digital is a digital marketing and strategic consulting agency headquartered in San Mateo, Calif. with additional offices in San Diego, San Francisco, Chicago, New York, Burlington, Vt., Austin, Texas, and Raleigh, N.C. Their staff consists of over 250 experts in SEO, social media marketing, and analytics.
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Eventbrite -
56$10,000+10 - 49 employeesSan Diego, CARead More
BD Emerson is a cybersecurity company in Richmond, Virginia. The company offers cybersecurity, business consulting, corporate law, and compliance consulting and has a small team.The company was established in 2020.
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57$5,000+250 - 999 employeesIrvine, CANexusTek is a midsize cloud consulting & SI company. The Greenwood Village, Colorado-based agency was established in 1996. Their team provides cloud consulting & SI, IT managed services, Cybersecurity, IT strategy consulting, and more.Read More
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58$5,000+50 - 249 employeesLos Angeles, CARead More
SeedX Inc., an Ecommerce Marketing company, was launched in 2015. They are based in Los Angeles, California; Austin, Texas and New York, New York and have a midsize team. Their services include Ecommerce Marketing, Advertising, Search Engine Optimization, Web Design, and more.
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American Marketing Association 1-800-FlowersIndustries
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59$1,000+2 - 9 employeesLos Angeles, CASunlight Media LLC, a Market Research company, is located in Los Angeles, California and Santa Monica, California. The small agency was established in 2011. Their services include Market Research, IT managed services, Web Development, Mobile App Development, and more.Read More
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Gary Numan MSA Agency L.A County Atlantic RecordsIndustries
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60$5,000+10 - 49 employeesSan Diego, CARead More
RSI Security is an IT managed services and cybersecurity company. They focus on IT managed services and cybersecurity and were launched in 2008. The company is headquartered in San Diego, California.
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Schedule ConsultationMost Reviewed IT Services Company in California
Check out an IT Services Company in California with the most new reviews in the past 12 months.
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