Top 100 IT Services Companies in California
The Best of April 2026Looking 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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211$5,000+10 - 49 employeesSan Diego, CAVideo production agency NANOBOT Group is in San Diego, California and Tallinn, Estonia. The small team provides Video Production, Digital Strategy, Email Marketing, Search Engine Optimization, and more and was established in 2010.Read More
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212$10,000+250 - 999 employeesMilpitas, CARead More
Founded in 2014, Teksun Inc. is a product engineering services company. Their team of around 25 employees is based in San Jose, Calif., with an additional office in Ahmedabad, India. They focus on IoT development, product design, and cloud consulting.
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QEPRIndustries
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213Undisclosed10 - 49 employeesCarlsbad, CABased in Carlsbad, California, InterKnowlogy is an AI firm. The small team provides Artificial Intelligence, AI Consulting, AI Agents, Generative AI, and more. The company was launched in 1999.Read More
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214$1,000+10 - 49 employeesLaguna Hills, CATop Pick Designs is a Laguna Hills, California-based. The agency offers and is small.The agency was established in 2023.Read More
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215$1,000+50 - 249 employeesLos Angeles, CALaunched in 2013, Differenz Force is a CRM consulting and SI company. Their services include CRM consulting and SI.Read More
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216$10,000+10 - 49 employeesSan Ramon, CARead More
Cloud consulting & SI company Initialyze was established in 2015. The small San Ramon, California-based team offers cloud consulting & SI, web design, ux/ui design, architectural design, and more.
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217$1,000+10 - 49 employeesSan Francisco, CALaunched in 1998, Help4Access (Microsoft Access Technical Support) is an IT managed services company. The small San Francisco, California-based team offers IT managed services, unified communications consulting & SI, custom software development, and IT staff augmentation.Read More
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218Undisclosed250 - 999 employeesSan Ramon, CARead More
Five9 is a cloud-based call center software provider. Their team of about 1,000 employees is based in San Ramon, Calif. Services include CRM, ERP, and IT consulting, as well as voice services. They were founded in 2001.
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DebtCleanseIndustries
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219$25,000+10 - 49 employeesSan Diego, CARead More
NoMoBo is a San Diego-based software company founded in 2017 with more than 10 members. They specialize in custom software, web, and mobile app development services for small and mid-market firms in industries such as real estate, IT, and utilities.
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HOA MessengerIndustries
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220Undisclosed10 - 49 employeesLos Angeles, CARead More
Eachbase is a digital agency that operates out of California. Their main services span branding, SEO, and web development.
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Nino's Pizza AECO Starfish Polo TMSIndustries
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221$5,000+2 - 9 employeesSan Francisco, CARead More
Launched in 2006, matax is an accounting company. They are in San Francisco, California and have a small team. Their services include accounting and business consulting.
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222$1,000+50 - 249 employeesFremont, CARead More
4 Way Technologies is an application development company. They offer mobile app development and were founded in 2012. Their midsize team is in Noida, India and Fremont, California.
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223$10,000+50 - 249 employeesDublin, CAConvergeHub, a CRM consulting and SI company, specializes in CRM consulting and SI and Business Consulting. The firm is in Dublin, California.Read More
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224$50,000+10 - 49 employeesLos Angeles, CARead More
The Development Factory is a software development firm based in Los Angeles, with a branch office in Toronto. Founded in 2009. With a team of 10, The Development Factory specializes in custom software development, mobile development, product design and more.
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Givsum - Empowering every person to be a force for goodIndustries
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225Undisclosed50 - 249 employeesCupertino, CATechnology Mindz, a midsize CRM consulting and SI company, is in Cupertino, California and Jaipur, India. Their services include CRM consulting and SI and IT managed services.Read More
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226$1,000+10 - 49 employeesSan Ramon, CABased in San Ramon, California, Clare Computer Solutions is an IT managed services company. They provide IT managed services and Cybersecurity and were founded in 1990.Read More
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227$250,000+50 - 249 employeesAliso Viejo, CAEstablished in 2017, CyberProof, a midsize IT strategy consulting company, is located in Aliso Viejo, California. Their services include IT strategy consulting and cloud consulting & SI.Read More
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228$10,000+10 - 49 employeesLos Angeles, CARead More
Launched in 2007, Formula is a IT strategy consulting company. The large team provides IT strategy consulting, BI & big data consulting & SI, cloud consulting & SI, IT staff augmentation, and more. The agency is headquartered in Los Angeles, California.
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229$1,000+10 - 49 employeesSan Francisco, CAKindrix Group is a small cloud consulting & SI company. The San Francisco, California-based agency was launched in 2025. Their services include cloud consulting & SI, Cybersecurity, Artificial Intelligence, Digital Engineering, and more.Read More
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230$1,000+50 - 249 employeesNapa, CAEndsight is an IT managed services company in Napa, California. They focus on IT managed services and IT strategy consulting and were founded in 2004.Read More
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231$5,000+10 - 49 employeesLos Angeles, CARead More
indusriaLAX is a custom software and application development company based in Los Angeles, Costa Mesa, and San Diego, Calif. Founded in 2012, their team of less than 50 provides big and small businesses through CRM consulting, custom software development, and web development.
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Car Rental Help CenterIndustries
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232$5,000+2 - 9 employeesSanta Monica, CAPike x Digital is a web design company. Their small team is based in Santa Monica, California. The firm provides Web Design, Email Marketing, Search Engine Optimization, Marketing Strategy, and more.Read More
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FUSE Media Elios Restaurant Colville Hall Wedding Venue Blake Hall Wedding VenueIndustries
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233$1,000+2 - 9 employeesSan Diego, CAABUSINESS is a cloud consulting & SI company. They provide cloud consulting & SI and CRM consulting and SI and were established in 2019.Read More
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234$10,000+1,000 - 9,999 employeesWalnut Creek, CAEstablished in 2002, Vaco is a large Brentwood, Tennessee-based IT managed services company. Their team specializes in IT managed services and cloud consulting & SI.Read More
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235$10,000+10 - 49 employeesSanta Cruz, CALaunched in 2017, SuiteCentric is a small Santa Cruz, California-based ERP consulting and SI company. Their services include ERP consulting and SI and CRM consulting and SI.Read More
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236Undisclosed10 - 49 employeesSan Diego, CAStratus10 is a cloud consulting & SI company. The San Diego, California-based team specializes in cloud consulting & SI.Read More
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237$5,000+10 - 49 employeesSan Diego, CACreative Resources Technology Group, an IT managed services company, offers IT managed services and Cybersecurity. The agency is based in Austin, Texas and San Diego, California.Read More
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238Undisclosed1,000 - 9,999 employeesStockton, CAEstablished in 2008, MSRcosmos LLC is an Application Management & Support company. Based in Stockton, California, the team focuses on Application Management & Support and ERP consulting and SI.Read More
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239$1,000+2 - 9 employeesLos Angeles, CARead More
Themis Web Technologies is a software development company based in Los Angeles, California. Founded in 2007, they are a sole proprietorship that provides web development, e-commerce development, custom software development, and enterprise app modernization.
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Incited MediaIndustries
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240$25,000+1,000 - 9,999 employeesLos Angeles, CANetsol Technologies Inc. Is a Cybersecurity company. Based in Los Angeles, California and London, England, the team specializes in Cybersecurity and cloud consulting & SI.Read More
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