Top 100 Systems Integrator Companies in California

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. 

SADA Systems, with a team of 350+ employees, is a software consulting agency that was founded in 2000. SADA Systems is headquartered in Los Angeles, with an office in Washington. The agency helps a variety of clients with their cloud consulting and system integration, IT strategy consulting, and software development needs.

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.

Akins IT is a small cybersecurity company based in Newport Beach, California. The team specializes in cybersecurity, IT strategy consulting, and cloud consulting & SI.

Galliot is a San Francisco-based software development firm founded in 2018. With an additional office in Montevideo, Uruguay, their 10-man-team develops products for midmarket and enterprise-level clients. While custom software and DevOps are their specialties, they also offer web development and cloud consulting.

Launched in 2011, Dynamics Square is a big data analytics company. The company specializes in BI & big data consulting & SI, cloud consulting & SI, CRM consulting and SI, ECM consulting and SI, and more and has a midsize team.

Vertical Computers is an IT services company based in Chino, Calif. The company, founded in 2014, has a team of around 15 that provides IT managed services, cloud consulting & SI, and voice services to various companies.

ZAG Technical Services is an IT solutions & business consulting company based in San Jose, San Ramon, and Salinas, Calif. The company, founded in 1998, has more than around 90 employees and provides IT managed services, cloud consulting & SI, cybersecurity, IT staff augmentation, IT strategy consulting, and unified communications consulting & SI services. ZAG Technical Services serves small and larger-sized companies in various industries that include business services, education, and financial services.

Cymetrix Software is a CRM consulting and SI company headquartered in San Francisco, California and Mumbai, India. They specialize in CRM consulting and SI, custom software development, and BI & big data consulting & SI and were launched in 2016.

Facet Interactive is a small Digital Strategy company launched in 2014. Their services include Digital Strategy, BI & big data consulting & SI, cloud consulting & SI, CRM consulting and SI, and more. The agency is based in El Segundo, California.

Based in Campbell, California, Barracuda is a large cloud consulting & SI company. The team specializes in cloud consulting & SI, cybersecurity, other IT consulting and SI, and application management & support.

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. 

Metal Toad is a Los Angeles, California-based cloud consulting & SI company. The firm specializes in cloud consulting & SI, BI & big data consulting & SI, IT managed services, Custom Software Development, and more and is midsize.The firm was founded in 2003.

EbizON is a midsize custom software development firm. Established in 2007, the agency is based in Altadena, California. Their services include Custom Software Development, Mobile App Development, cloud consulting & SI, CRM consulting and SI, and more.

Dynamic 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.

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.

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.

Abtech Technologies is an IT managed services company. They are in Carlsbad, California and have a midsize team. The firm provides IT managed services, cloud consulting & SI, IT staff augmentation, IT strategy consulting, and more.

Kingsmen Digital Ventures is a custom software development firm established in 2017. Their small team is based in Irvine, California and provides custom software development, ux/ui design, mobile app development, and web development.

Insightful Networks is a business intelligence company. The midsize West Hollywood, California-based agency was founded in 1998. Their team provides BI & big data consulting & SI, IT staff augmentation, IT managed services, other IT consulting and SI, and more.

Fastly is an edge cloud platform for developers founded in 2011in San Francisco. With over 900 employees scattered in various international locations, they provide cloud consulting, systems integration, IT consulting, and more.

Cloudsquare is a Salesforce Consulting Partner that is based in Los Angeles, CA, with a direct focus on strategic advisory, technical implementation, and business transformation. Founded in 2017, they have about 30+ employees, that primarily support mid-market companies with a focus on the financial services and healthcare sectors. Services include Salesforce consulting, implementation, integrations, and managed services.

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.

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.

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.

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.

Tailored Technology Services Inc. Is a small Irvine, California-based IT managed services company. Founded in 2013, the team offers IT managed services.

Be Structured Technology Group is a managed services provider (MSP) headquartered in Los Angeles. Established in 2007, they work with business services and nonprofit companies, providing IT managed services, strategy and cloud consulting, cybersecurity, and system integration. They're a team of 11-employees.

SeedX Inc. is an award-winning digital marketing and growth agency headquartered in Los Angeles and Austin. They were founded in 2015, and the team of 45 specializes in omnichannel marketing, paid media, and scalable growth strategy. They primarily focus on e-commerce, technology, and multi-faceted campaigns and growth projects.

Wendego I.T. Solutions is an IT firm based in San Diego and founded in 2006. With no more than 10 employees, they provide IT managed services, IT strategy consulting, and cybersecurity services for clients in the industries of health care and financial services.