Top 100 Staff Augmentation Services in California
The Best of December 2025Looking for a top staff augmentation service in California?
Maintaining all of your business processes and services requires an incredible amount of patience and diligence, and sometimes you need external expertise to do so.
To assist you in your search for a partner, we’ve compiled this list of the top IT staff augmentation companies in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best California Staff Augmentation Firms
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1$25,000+50 - 249 employeesSan Jose, CADiffco, a custom software development firm, is based in San Jose, California. They focus on Custom Software Development, Artificial Intelligence, IT staff augmentation, Web Development, and more and were launched in 2008.Read More
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Mars Chemtreat Nokia InstreamaticIndustries
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2$50,000+50 - 249 employeesSan Francisco, CARead More
Cybercraft Inc. is a development agency headquartered in Lviv, Ukraine, that was established 2012. Their team of 19 offers custom software development, IT staff augmentation, web development, and more.
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Palo Alto NetworksIndustries
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3$5,000+10 - 49 employeesEl Segundo, CARead More
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.
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Element Solutions IncIndustries
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4$50,000+250 - 999 employeesPalo Alto, CARead More
Turing is a small IT staff augmentation company. Established in 2018, the agency is in Palo Alto, California. Their services include IT staff augmentation.
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5$10,000+50 - 249 employeesSan Francisco, CARead More
Founded in 2012, SF AppWorks is a digital agency that produces innovative technologies for mainly midmarket companies. Based in San Francisco, their team of 50+ specializes in web development, mobile app development, UX/UI design, and custom software development.
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West ElmIndustries
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6$10,000+10 - 49 employeesBurbank, CARead More
Based in Kyiv, Ukraine, EltexSoft is a software development company that was founded in 2015. Their team of 31 provides customer software development, mobile app development, and web development for small businesses; their clients are primarily in the information technology, education, retail, and e-commerce industries.
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SaaS EdTech MarketplaceIndustries
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7$10,000+50 - 249 employeesSacramento, CABluelight is a midsize custom software development firm based in Sacramento, California and Jardim Paulistano, Brazil. Launched in 2019, the team provides Custom Software Development, Web Development, Mobile App Development, UX/UI Design, and more.Read More
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8$10,000+50 - 249 employeesPalo Alto, CARead More
Launched in 2019, Koderspedia is a custom software development company. The midsize Palo Alto, California-based team specializes in custom software development, web development, mobile app development, e-commerce development, and more.
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9$50,000+50 - 249 employeesSan Francisco, CAAdmios, a software development firm, was launched in 2005. The company provides Custom Software Development, IT staff augmentation, IT managed services, Application Testing, and more and has a midsize team. The company is in San Francisco, California.Read More
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10$10,000+10 - 49 employeesSacramento, CARead More
Prestige Development Group is an IT staff augmentation company based in Sacramento, California. The small firm was launched in 2016. Their team specializes in IT staff augmentation, custom software development, mobile app development, and blockchain.
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Capital OneIndustries
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11Undisclosed10 - 49 employeesCayucos, CARead More
Cloud consulting & SI company HiView Solutions is in Cayucos, California. The small team provides cloud consulting & SI, IT managed services, IT strategy consulting, and IT staff augmentation and was founded in 2016.
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12$5,000+10 - 49 employeesWest Hollywood, CAInsightful 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.Read More
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13$1,000+50 - 249 employeesCastaic, CARead More
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.
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RenaultIndustries
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14Undisclosed50 - 249 employeesSan Francisco, CARead More
Martian Craft is a user experience design company established in 2010. The company provides ux/ui design, cloud consulting & SI, custom software development, web development, and more and has a midsize team.
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AppleIndustries
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15$10,000+50 - 249 employeesSan Mateo, CARead More
Cider is a software development company located in San Francisco. Founded in 2015, their 5 employees provide software development, marketing, and web design services to ecommerce clients.
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HPIndustries
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16$1,000+10 - 49 employeesSan Diego, CACrown Computers inc is an IT managed services company established in 1995. The company offers IT managed services, IT strategy consulting, Cybersecurity, IT staff augmentation, and more and has a small team.Read More
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17$75,000+250 - 999 employeesMenlo Park, CARead More
Based in Menlo Park, California, TurnKey Labs is a midsize software development firm. Founded in 2019, the team focuses on custom software development, product design, and HR services.
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Headspace, R1, ResNet, Diib, Salad, MiResourceIndustries
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18Undisclosed2 - 9 employeesLos Angeles, CAHeadquartered in Los Angeles, California, DevSignal is an IT staff augmentation company. The small firm was founded in 2023. Their team offers IT staff augmentation, Staffing, Recruiting, IT managed services, and more.Read More
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19$50,000+10 - 49 employeesIrvine, CARead More
Company A is a custom application development company based in Irvine, Calif., with offices in Plano, Texas, and Novi Sad, Serbia. The company, founded in 2015, has a team of more than ten that provides cloud consulting & SI, custom software development, web development, mobile app development, and enterprise app modernization services. Company A serves small and larger-sized companies in various industries, including IT, financial services, and health care & medical.
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20Undisclosed50 - 249 employeesSan Mateo, CALaunched in 2020, Remotebase is a HR agency. The agency offers HR services and has a midsize team. The agency is headquartered in San Mateo, California.Read More
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21$10,000+50 - 249 employeesSan Mateo, CAIT staff augmentation company Genium is located in San Mateo, California and New York, New York. The midsize team specializes in IT staff augmentation, Custom Software Development, Mobile App Development, and Artificial Intelligence. The agency was launched in 2011.Read More
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ShopPogoEclipseIndustries
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22$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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23$1,000+50 - 249 employeesSouth San Francisco, CARead More
Aston Technologies is a midsize IT staff augmentation company. The Minneapolis, Minnesota-based firm was founded in 2001. Their services include IT staff augmentation and IT managed services.
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24$25,000+50 - 249 employeesGranite Bay, CARead More
FullStack Labs is a software consultancy headquartered in Granite Bay, CA with satellite offices in Arlington, VA, and Barranquilla, Colombia. With over 40 employees at hand, FullStack provides web development, custom software development, and mobile app development services to enterprises and startups alike.
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25$5,000+10 - 49 employeesLos Angeles, CARead More
Headquartered in Redondo Beach, California, IT Accuracy is a cloud consulting & SI company. The small company was launched in 2007. Their team specializes in cloud consulting & SI, IT managed services, cybersecurity, IT strategy consulting, and more.
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Farmer's InsuranceIndustries
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26$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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27$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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28$5,000+2 - 9 employeesSan Jose, CARead More
CodeFutures is a small software development company. Based in Broomfield, Colorado and San Jose, California, the agency was launched in 2001. Their services include custom software development, cloud consulting & SI, IT staff augmentation, and other IT consulting and SI.
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29$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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30$10,000+10 - 49 employeesMarina del Rey, CARead More
Fabric Staffing is an HR company founded in 2016 and based in Marina Del Rey, Calif. With more than 10 experts, they provide HR services, IT staff augmentation, and branding solutions for clients ranging from small firms to large enterprises in the fields of IT services.
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ClutterIndustries
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