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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1771Undisclosed50 - 249 employeesSouth San Francisco, CAAB-Soft is a cloud consulting & SI company founded in 2011. The team specializes in cloud consulting & SI and BI & big data consulting & SI and is based in South San Francisco, California.Read More
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1772Undisclosed10 - 49 employeesBurbank, CALaunched in 2014, ConvergentDS LLC is a small Cybersecurity company. Their services include Cybersecurity and IT strategy consulting.Read More
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1773$10,000+2 - 9 employeesLong Beach, CACoremaitri Software, a small software development firm, is located in Long Beach, California and New Delhi, India. Their services include Custom Software Development and ERP consulting and SI.Read More
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1774$10,000+2 - 9 employeesDublin, CASutraSarthi Strategic Solution LLP is a Business Consulting company. The team provides Business Consulting and Marketing Strategy, and the agency is based in Ahmedabad, India and Dublin, California.Read More
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1775Undisclosed50 - 249 employeesLos Angeles, CASecureData is an IT managed services company. The Minneapolis, Minnesota-based company focuses on IT managed services.Read More
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1776$1,000+10 - 49 employeesFremont, CAFounded in 2015, OneGreenDiary is a small ERP consulting and SI company. Their team focuses on ERP consulting and SI and Web Development.Read More
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1777$50,000+1,000 - 9,999 employeesIrvine, CAIn Irvine, California; Roseville, California; Boise, Idaho and Denver, Colorado, Synoptek, LLC. Is an IT managed services company. The large team specializes in IT managed services, Enterprise App Modernization, cloud consulting & SI, and IT strategy consulting and was established in 2001.Read More
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Champion Home ExteriorsIndustries
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1778$10,000+10 - 49 employeesSan Francisco, CAZaltech AI is an IT managed services company. The team focuses on IT managed services and Custom Software Development and is based in San Francisco, California and Dubai, United Arab Emirates.Read More
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1779$5,000+2 - 9 employeesCalabasas, CAColddata is an IT strategy consulting company founded in 2000. The team offers IT strategy consulting and Custom Software Development.Read More
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1780$100,000+50 - 249 employeesAustin, TXRead More
Established in 2012, Unique Software Development is a data analytics company. The firm offers BI & big data consulting & SI, Web Development, Custom Software Development, Mobile App Development, and more and has a midsize team. The firm is headquartered in Dallas, Texas; Washington, District of Columbia; New York, New York and Austin, Texas.
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MODE TransportationIndustries
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1781$100,000+10 - 49 employeesSan Francisco, CASpan Digital is a custom software development firm launched in 2013. The team specializes in Custom Software Development and BI & big data consulting & SI.Read More
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1782$25,000+250 - 999 employeesBeverly Hills, CAFounded in 2011, Rootstrap is a software development company. Their midsize team is located in Beverly Hills, California; Buenos Aires, Argentina; Montevideo, Uruguay and Medellín, Colombia and offers Custom Software Development, Artificial Intelligence, Mobile App Development, BI & big data consulting & SI, and more.Read More
Clients
MasterClass Google Tony Robbins EmeritusIndustries
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1783$10,000+10 - 49 employeesBerkeley, CADeCodinate Inc is a Berkeley, California-based mobile application development firm. They provide Mobile App Development and Web Development.Read More
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1784$25,000+10 - 49 employeesRolling Hills Estates, CAIT managed services company Navinod Technologies LLP(Aykan®) was launched in 2017. They are headquartered in Mangaluru, India and Rolling Hills Estates, California and have a small team. Their services include IT managed services, Artificial Intelligence, AI Consulting, Generative AI, and more.Read More
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1785Undisclosed50 - 249 employeesSan Jose, CA360 IT Professionals is a midsize San Jose, California-based CRM consulting and SI company. Their services include CRM consulting and SI and Mobile App Development.Read More
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1786$25,000+1,000 - 9,999 employeesSanta Clara, CASoftnautics - a MosChip Company is an AI firm located in Santa Clara, California and Ahmedabad, India. Their services include Artificial Intelligence and IoT development.Read More
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1787Undisclosed10 - 49 employeesSan Diego, CAAffinity Design Hub, a marketing strategy company, was founded in 2015. Their small team is based in San Diego, California. Their services include marketing strategy, search engine optimization, graphic design, logo, and more.Read More
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1788Undisclosed1,000 - 9,999 employeesSan Jose, CAAutomation Anywhere is an Application Testing company. The team offers Application Testing and cloud consulting & SI and is headquartered in San Jose, California and Bengaluru, India.Read More
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1789$1,000+50 - 249 employeesLake Forest, CAXRM is a CRM consulting and SI company. The Lake Forest, California-based team specializes in CRM consulting and SI and IT managed services.Read More
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1790$10,000+2 - 9 employeesLos Angeles, CAComputer Help LA, a cloud consulting & SI company, is based in Los Angeles, California. Their services include cloud consulting & SI and IT managed services.Read More
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1791$10,000+2 - 9 employeesArcadia, CAIT System House LLC is a cloud consulting & SI company based in Arcadia, California. Founded in 2007, the team focuses on cloud consulting & SI and IT managed services.Read More
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1792$5,000+Freelancer employeesSan Diego, CAGreenman IT Support is an IT managed services company. Launched in 2005, the firm is in San Diego, California. Their team focuses on IT managed services.Read More
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1793$5,000+10 - 49 employeesRocklin, CAEstablished in 2003, Intuitive Networks, Inc. Is a small IT managed services company located in Rocklin, California. Their team provides IT managed services and IT strategy consulting.Read More
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1794$5,000+2 - 9 employeesLos Angeles, CACorporate West Computer Systems, an IT managed services company, specializes in IT managed services. The agency is based in Los Angeles, California.Read More
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1795$5,000+2 - 9 employeesChino Hills, CAHeadquartered in Chino Hills, California, D1 Networks is a small IT managed services company. Their services include IT managed services and Cybersecurity.Read More
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1796$5,000+Freelancer employeesSanta Monica, CABased in Santa Monica, California, Palisades Technology is a small IT strategy consulting company. Their services include IT strategy consulting and IT managed services.Read More
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1797$10,000+10 - 49 employeesLos Angeles, CABusiness intelligence company ExistBI was founded in 2008. The team provides BI & big data consulting & SI and IT managed services and is located in Los Angeles, California.Read More
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1798$1,000+50 - 249 employeesShenzhen Shi, ChinaAPEX Technologies, a midsize AI company, is headquartered in Shanghai, China and Beijing, China. The team specializes in Artificial Intelligence and AR/VR development.Read More
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1799Undisclosed2 - 9 employeesSan Diego, CATCM is a small San Diego, California-based IT strategy consulting company. Their services include IT strategy consulting.Read More
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1800Undisclosed1,000 - 9,999 employeesLos Gatos, CAImpetus is a large Los Gatos, California-based data analytics company. Their services include BI & big data consulting & SI.Read More
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