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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$5,000+50 - 249 employeesGaithersburg, MDRead More
DesignDATA is an IT managed services company. Established in 1979, the midsize agency is headquartered in Gaithersburg, Maryland and Washington, District of Columbia. Their services include IT managed services, IT strategy consulting, cloud consulting & SI, and Cybersecurity.
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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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61Undisclosed10 - 49 employeesPasadena, CARead More
Cyber Defense Group is a Los Angeles, California-based cloud consulting & SI and cybersecurity company. Launched in 2016, the small team specializes in cloud consulting & SI and cybersecurity.
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62$1,000+10 - 49 employeesMarina del Rey, CARead More
Axe Automation is a CRM consulting and SI company founded in 2022. The firm provides CRM consulting and SI, ERP consulting and SI, Artificial Intelligence, and Robotics Process Automation and has a small team. The firm is in Marina del Rey, California.
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JLL Colliers Cleverly Blue Ocean CapitalIndustries
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63$5,000+10 - 49 employeesSausalito, CARead More
Atricore is an agile Sausalito, California-based IAM product, services, and consulting company launched in 2007. Their team of IAM experts focuses on identity and access management orchestration and modernization, cybersecurity, and IT strategy consulting; with SaaS tools for cloud identity migration.
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64$5,000+10 - 49 employeesSan Diego, CARead More
TAVO Media Group is a small advertising company. Headquartered in San Diego, California, the firm was founded in 2012. Their services include advertising, marketing strategy, branding, search engine optimization, and more.
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65$10,000+50 - 249 employeesSanta Monica, CARead More
Lightcrest is a consultancy based in Santa Monica, Calif., and founded in 2008. Their team of over 50 offers big data consulting, cloud consulting, and cybersecurity solutions to clients in the industries of advertising, business services, and education, among others.
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Hewlett PackardIndustries
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66$5,000+1,000 - 9,999 employeesSan Jose, CARead More
ExpertsFromIndia is a development company based in San Jose, Calif. They were founded in 2003 and have a team of around 800 employees. They primarily provide custom software development and SEO.
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eBayIndustries
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67$25,000+50 - 249 employeesLos Angeles, CADreamers Inc. Is an artificial intelligence development company in Los Angeles, California. Launched in 2013, the midsize team focuses on Artificial Intelligence, Mobile App Development, Blockchain, Cybersecurity, and more.Read More
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NASA Johns Hopkins Applied Physics Lab US Air Force US Department of EducationIndustries
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68$50,000+10 - 49 employeesLos Angeles, CAMaterialize Labs is a Los Angeles, California-based business intelligence company. They specialize in BI & big data consulting & SI, Custom Software Development, Web Development, Mobile App Development, and more and were founded in 2018.Read More
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69$10,000+50 - 249 employeesSunnyvale, CARead More
CloudGeometry is a cloud consulting & SI company. The midsize Sunnyvale, California-based team specializes in cloud consulting & SI, IT managed services, other IT consulting and SI, custom software development, and more. The agency was established in 2007.
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70$25,000+50 - 249 employeesPalo Alto, CARead More
Data Monsters is a big data analytics company headquartered in San Francisco, California and , Russia. Established in 2015, the midsize team focuses on BI & big data consulting & SI, custom software development, and Artificial Intelligence.
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NetAppIndustries
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71$5,000+10 - 49 employeesSan Diego, CARead More
Pointivity Managed Solutions is an IT managed services agency in San Diego. Founded in 2001, they have about 17 employees that serve mostly midmarket and small-business clients in a wide range of sectors. Services include cloud consulting, IT consulting and SI, as well as IT strategy.
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Laffer Associates -
72Undisclosed250 - 999 employeesIrvine, CASilk Software is an e-commerce development company established in 2007. Their midsize team is based in Irvine, California and New York, New York. Their services include E-Commerce Development, ERP consulting and SI, Social Media Marketing, Search Engine Optimization, and more.Read More
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AllbirdsIndustries
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73$10,000+10 - 49 employeesLos Angeles, CARead More
Data-Sleek, a big data company, was launched in 2020. Based in Los Angeles, California, their small team provides BI & big data consulting & SI and web development.
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74Undisclosed50 - 249 employeesWalnut Creek, CACybersecurity company SharkStriker Inc. Is in Walnut Creek, California. The midsize team provides cybersecurity. The firm was launched in 2010.Read More
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75$1,000+10 - 49 employeesSan Marcos, CARead More
HIPAA Vault is a cloud consulting company based in San Marcos, Calif. Founded in 1997, this thirteen-person team offers HIPAA-complianted web hosting and cloud solutions, along with systems integration, cloud consulting, cybersecurity, and managed IT services for the healthcare field.
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76$5,000+10 - 49 employeesSan Mateo, CARead More
Kinetix Technology Services is an IT managed services company established in 2005. In San Mateo, California, their small team provides IT managed services, cloud consulting & SI, IT strategy consulting, and cybersecurity.
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77$50,000+10 - 49 employeesPasadena, CASerious Development is a small software development company founded in 2012. Their services include Custom Software Development, Mobile App Development, BI & big data consulting & SI, and Artificial Intelligence. The company is in Pasadena, California and Houston, Texas.Read More
Clients
Imperial Health CSD MedPoint Global 1Industries
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78$5,000+50 - 249 employeesSacramento, CARead More
West Advanced Technologies Inc is a midsize Sacramento, California-based cybersecurity company. The team specializes in cybersecurity, IT staff augmentation, cloud consulting & SI, and IT managed services.
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79$5,000+2 - 9 employeesLafayette, CARead More
BizCare is an IT solutions company based in Lafayette, Calif. They were founded in 2006 and have a team of 4 employees who specialize in IT managed services and cyber security. They cut through the chaos of the modern IT landscape to provide their clients with solutions that work.
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80$5,000+50 - 249 employeesIrvine, CARead More
TekHqs ( Tek HeadQuarters ) is a custom software development company founded in 2010 with more than 50 members. They provide custom software development, CRM consulting, and ERP consulting solutions from their office in Irvine, Calif. They work primarily with small firms.
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YamahaIndustries
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81$50,000+10 - 49 employeesSan Francisco, CARead More
RSO Consulting is a small pay per click agency in San Francisco, California. They specialize in Pay Per Click, Search Engine Optimization, Social Media Marketing, Conversion Optimization, and more and were founded in 2006.
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Adobe Alsco Uniforms ADLINK Technology Inc. La Scuola International SchoolIndustries
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82$5,000+10 - 49 employeesSanta Rosa, CARead More
Cybersecurity company Portola Systems, Inc is headquartered in Santa Rosa, California. The small agency was established in 1994. Their team focuses on cybersecurity, IT managed services, IT strategy consulting, cloud consulting & SI, and more.
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83$1,000+10 - 49 employeesSaratoga, CARead More
Computer Experts Corp. is a consultancy founded in 1988 with over 10 experts. Based in Saratoga, Calif., they offer IT managed services, big data consulting, and cloud consulting solutions for small businesses in the field of IT services.
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84$5,000+10 - 49 employeesGlendale, CARead More
Inbound AV is a marketing strategy company launched in 2017. Their small team is headquartered in Glendale, California. The firm specializes in marketing strategy, digital strategy, email marketing, graphic design, and more.
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85$1,000+50 - 249 employeesSan Jose, CARead More
Alternis IT is a managed IT and cybersecurity broker based in San Jose, Calif., with an office in Los Angeles. The broker, founded in 2013, has more than 50 employees and provides cybersecurity, IT managed services, IT strategy consulting, and cloud consulting & SI services. Alternis IT serves small and midmarket companies in various sectors that include financial services, media, and legal.
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KindPeoplesIndustries
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86$1,000+2 - 9 employeesLos Angeles, CAWEBITMD, a small pay per click agency, is in Los Angeles, California; New York, New York and Dallas, Texas. They focus on Pay Per Click, Ecommerce Marketing, Content Marketing, and CRM consulting and SI and were established in 2008.Read More
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Hyatt HotelsIndustries
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87$1,000+2 - 9 employeesBeverly Hills, CARead More
IT strategy consulting company We Solve Problems was launched in 2010. They are located in Beverly Hills, California and have a small team. Their services include IT strategy consulting, IT managed services, cybersecurity, cloud consulting & SI, and more.
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88$50,000+1,000 - 9,999 employeesSanta Clara, CARead More
Founded in 2001, Trianz is a strategic agency headquartered in Santa Clara, Calif. with offices all over the United States, including Boston, Chicago, and Seattle.Their team has over 1,000 employees that specialize in big data consulting, cloud consulting, and IT strategy consulting.
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High TechIndustries
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89$5,000+10 - 49 employeesLos Angeles, CALocated in Los Angeles, California and Irvine, California, TouchZen Media is a small mobile application development company. They specialize in Mobile App Development, UX/UI Design, and IT strategy consulting and were established in 2014.Read More
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Beachbody LLCIndustries
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90$25,000+50 - 249 employeesSan Francisco, CARead More
Grio is a software consulting firm based in San Francisco, Calif, that was established in 2008. Their team of 50 employees offers web development, mobile app development, and UX/UI design services.
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