Top 100 IT Services Companies in California

Software development firm MugCo was founded in 2020. The small Pleasanton, California-based team specializes in custom software development, e-commerce development, web development, cloud consulting & SI, and more.

Nexsales is a conversion optimization company. The Cupertino, California-based agency was established in 2008. The midsize team specializes in conversion optimization, BI & big data consulting & SI, business consulting, demand generation marketing, and more.

Based in Petaluma, California, theCodery is a CRM consulting and SI company. They focus on CRM consulting and SI, custom software development, BI & big data consulting & SI, cloud consulting & SI, and more and were founded in 2018.

Burgi Technologies is an IT support provider based in Tustin, California. Their small team of 1–2 employees mostly services small businesses in the healthcare, automotive, and manufacturing industries. They specialize in providing helpdesk support, ensuring HIPAA compliance, and conducting security backups.

Cloud consulting & SI company Xceptional was launched in 2007. The small team offers cloud consulting & SI, IT managed services, unified communications consulting & SI, cybersecurity, and more. The firm is based in San Diego, California.

Kazmarek Technology Solutions is a IT managed services company. The small San Diego, California-based firm was established in 2000. Their services include IT managed services, cybersecurity, IT strategy consulting, cloud consulting & SI, and more.

Email marketing company bauer/DIGITAL is headquartered in Los Angeles, California. Launched in 2004, the small team offers email marketing, content marketing, search engine optimization, pay per click, and more.

ClearScale is a cloud-native systems integration, strategic consulting, and application development company founded in San Francisco with over 50 employees. They provide custom software development, mobile app development, and big data consulting services.

Lightbulb Networks is a managed IT company based in Anaheim, Calif. The company, founded in 2015, has a team of less than ten that provides IT managed services, IT strategy consulting, and cybersecurity to small and midmarket companies in the IT, business services, and other industries.

Veganext is a cybersecurity company located in El Segundo, California. The firm focuses on cybersecurity, IT managed services, IT strategy consulting, cloud consulting & SI, and more and has a midsize team.The firm was launched in 2017.

Ideas Factory US is a custom software development company established in 2014. Based in Fairfield, California, their small team focuses on custom software development, enterprise app modernization, IT strategy consulting, cloud consulting & SI, and more.

Launched in 1996, Creative Resources Technology Group is an IT managed services company. The agency offers IT managed services, cybersecurity, and IT strategy consulting and has a small team. The agency is in Costa Mesa, California.

Cloud Brigade is a small software development company. In Santa Cruz, California, the firm was founded in 2005. Their team specializes in custom software development, Artificial Intelligence, IT managed services, web development, and more.

Sunvera Software is an Irvine, Calif.-based mobile app development company with fewer than 10 employees. Founded in 2013, the team specializes in mobile app development, custom software development, and web development. 

ISSQUARED INC, a midsize IT managed services company, is located in Westlake Village, California and Hyderabad, India. They offer IT managed services, cloud consulting & SI, and IT strategy consulting and were established in 2010.

Alpha & Omega Computer Inc. Is an IT strategy consulting company headquartered in Hacienda Heights, California. They provide IT strategy consulting, IT managed services, ERP consulting and SI, cloud consulting & SI, and more and were founded in 1987.

DemandDynamics is an Irvine, California-based cloud consulting & SI company. The small firm was founded in 2019. Their services include cloud consulting & SI, CRM consulting and SI, ERP consulting and SI, and IT managed services.

Rely On IT is a managed IT firm based in Los Altos, Calif. Founded in 2005, their team of 8 serves clients in the real estate and education sectors. Services include cloud consulting and strategy.

AlphaBOLD is a IT managed services company launched in 2017. Their midsize team is based in Carlsbad, California and provides IT managed services, mobile app development, IoT development, and Artificial Intelligence.

IDerive, a media planning & buying agency, was launched in 2022. Headquartered in San Diego, California, their small team specializes in media planning & buying, digital strategy, content marketing, and BI & big data consulting & SI.

MSRCosmos LLC is a data analytics company founded in 2008. Their midsize team is based in Stockton, California and specializes in BI & big data consulting & SI, ERP consulting and SI, Artificial Intelligence, cloud consulting & SI, and more.

SymSoft Solutions is an advertising company. Their small team is headquartered in Sacramento, California. Their services include advertising, branding, digital strategy, search engine optimization, and more. The agency was launched in 2006.

WordSphere WordPress Development Agency is a software development firm established in 2007. Their small team is headquartered in San Bernardino, California. The company focuses on custom software development, IT managed services, web design, wearable app development, and more.

Cybersecurity company SharkStriker Inc. Is in Walnut Creek, California. The midsize team provides cybersecurity. The firm was launched in 2010.

IT strategy consulting company Milestone Technologies Inc is headquartered in Fremont, California and Phoenix, Arizona. The firm offers IT strategy consulting, cloud consulting & SI, Artificial Intelligence, application management & support, and more and is large.The firm was founded in 1997.

Laminar Consulting Services Inc. is an application development firm located in Foothill Ranch, Calif. Founded in 20015, they currently have about 3 employees. They offer custom software development, application testing, and enterprise app modernization services to primarily midmarket firms in financial services as well as the health care and medical industries.

Pact-One Solutions, LLC, a IT managed services company, is headquartered in Las Vegas, Nevada; San Diego, California; Pasadena, California and Lake Oswego, Oregon. The small team focuses on IT managed services, cybersecurity, IT strategy consulting, other IT consulting and SI, and more and was founded in 2003.

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.

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.

NexusTek is an IT solutions company headquartered in Greenwood Village, Colo., with additional offices in Phoenix and Los Angeles. The company has a team of nearly 300 employees who provide CRM consulting & SI, IT managed services, cloud consulting & SI, and productivity, collaboration & UC consulting and SI services.