Top 100 SEO Companies in California
The Best of April 2026Looking for a top SEO firm in California?
Compare top-performing SEO agencies to see which may be the best fit for your business goals. Whether you're seeking to improve your ranking in search engine results pages, boost website traffic, or show up in local search results, investing in SEO is important for business growth.
To assist you in your search for a partner, we’ve compiled this list of the top SEO companies 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 SEO Firms
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$1,000+50 - 249 employeesSan Antonio, TXFunnel Boost Media is a SEO company. They are located in San Antonio, Texas; Doral, Florida; Boston, Massachusetts and San Francisco, California and have a midsize team that focuses on Search Engine Optimization, Advertising, Pay Per Click, and Web Design. The agency was launched in 2012.Read More
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$1,000+10 - 49 employeesNew York, NYSEO company NuStream is in New York, New York; Philadelphia, Pennsylvania and Allentown, Pennsylvania. They provide Search Engine Optimization, Web Design, Digital Strategy, and Video Production and were established in 2010.Read More
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1591$1,000+2 - 9 employeesManteca, CAFounded in 2018, Boomajoom is a PPC company. The team specializes in Pay Per Click and Search Engine Optimization and is headquartered in Manteca, California.Read More
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1592$1,000+10 - 49 employeesSan Francisco, CAAvion Agency is a Content Marketing company. Headquartered in North Melbourne, Australia and San Francisco, California, the agency offers Content Marketing and Digital Strategy.Read More
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1593$1,000+2 - 9 employeesLos Angeles, CASEO services firm Proflico Digital Marketing was founded in 2018. Based in Los Angeles, California, the team offers Search Engine Optimization and Digital Strategy.Read More
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1594$1,000+2 - 9 employeesSan Francisco, CABeknown, a SEO company and pay per click company, specialize in Search Engine Optimization and Pay Per Click. They were established in 2022.Read More
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1595$1,000+50 - 249 employeesDublin, CAProgressino LLC is a Ypsilanti, Michigan-based pay per click agency. The midsize team offers Pay Per Click, UX/UI Design, Advertising, Search Engine Optimization, and more. The agency was established in 2011.Read More
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1596$5,000+50 - 249 employeesLos Angeles, CAB-Reel is a branding firm. They were launched in 1999 and provide Branding and Search Engine Optimization.Read More
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1597$1,000+10 - 49 employeesSan Ramon, CARoundtechsquare is a social media marketing agency. The team specializes in Social Media Marketing and Search Engine Optimization and is based in San Ramon, California and Vadodara, India.Read More
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1598$1,000+2 - 9 employeesSan Diego, CASan Diego Web Design Company, a web design agency, was launched in 2024. They provides Web Design and Search Engine Optimization.Read More
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1599$5,000+50 - 249 employeesDowney, CAMidsize Advertising company Float Media House, is in Downey, California. Their services include Advertising and Media Planning & Buying.Read More
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1600$5,000+2 - 9 employeesSan Francisco, CAThe Design Boutique, Inc. Is a SEO company established in 2003. The agency offers Search Engine Optimization, and is small.Read More
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1601Undisclosed10 - 49 employeesWestlake Village, CAMerchant Centric is a SEO company in Westlake Village, California. Established in 2013, the team focuses on Search Engine Optimization.Read More
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1602Undisclosed2 - 9 employeesLos Angeles, CAParasol Leads is a Los Angeles, California-based SEO agency. They focus on Search Engine Optimization and were founded in 2001.Read More
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1603Undisclosed2 - 9 employeesEl Monte, CADESIGN 101 US GROUP is a small El Monte, California-based SEO agency. The team focuses on Search Engine Optimization.Read More
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1604Undisclosed2 - 9 employeesSan Diego, CABest SEO Worldwide is a SEO services firm. The agency is headquartered in San Diego, California. Their team specializes in Search Engine Optimization.Read More
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1605Undisclosed50 - 249 employeesIrvine, CAFounded in 2013, First Page USA is a SEO company. The midsize team provides Search Engine Optimization and Social Media Marketing.Read More
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1606Undisclosed10 - 49 employeesLos Angeles, CASoftvira, a SEO services firm, was launched in 2016. The firm provides Search Engine Optimization.Read More
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1607Undisclosed50 - 249 employeesFolsom, CAAnuva LLC, a SEO company, focuses on Search Engine Optimization and Web Development. The firm is based in Folsom, California.Read More
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1608UndisclosedFreelancer employeesSacramento, CAMobile app development company Electric Web is in Sacramento, California. They focus on mobile app development, custom software development, digital strategy, search engine optimization, and more and were launched in 2010.Read More
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1609Undisclosed2 - 9 employeesIrvine, CASocial Hospitality, a Content Marketing company, is headquartered in Irvine, California. Launched in 2011, the team offers Content Marketing and Search Engine Optimization.Read More
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1610$5,000+2 - 9 employeesSan Francisco, CALaunched in 2005, Sum Digital is a small social media marketing firm headquartered in San Francisco, California. Their team focuses on Social Media Marketing and Conversion Optimization.Read More
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1611$1,000+2 - 9 employeesSan Francisco, CACircleClick is a Content Marketing company founded in 2009. The team offers Content Marketing and Pay Per Click.Read More
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1612$5,000+2 - 9 employeesRedwood City, CAFounded in 1999, Perkolate Marketing & Design is a small Las Vegas, Nevada-based Digital Strategy company. Their services include Digital Strategy and Graphic Design.Read More
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1613$5,000+2 - 9 employeesSacramento, CAFLX Interactive is a branding agency. They are located in Sacramento, California, and their services include Branding and Search Engine Optimization.Read More
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1614$5,000+2 - 9 employeesSacramento, CAWebVantage Marketing, a social media marketing company, was launched in 2009. The small team focuses on Social Media Marketing and Search Engine Optimization.Read More
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1615$5,000+2 - 9 employeesSacramento, CANoble Image is a Sacramento, California-based SEO services firm. Founded in 1998, the team provides Search Engine Optimization and Web Design.Read More
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1616$5,000+2 - 9 employeesSanta Monica, CAStill Water Interactive is a SEO company launched in 1998. Located in Santa Monica, California, the team provides Search Engine Optimization and Social Media Marketing.Read More
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1617Undisclosed2 - 9 employeesAltadena, CABrand Orbit is an Advertising company launched in 1967. Their team focuses on Advertising and Public Relations.Read More
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1618Undisclosed2 - 9 employeesFresno, CAPanic Website Design is a web design company. The Fresno, California-based agency was founded in 2018. Their services include Web Design and Logo.Read More
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1619Undisclosed2 - 9 employeesBakersfield, CABranding firm GENUINE WEB provides Branding and Search Engine Optimization. They were established in 2004.Read More
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1620Undisclosed2 - 9 employeesChula Vista, CATeam Soda, a small Digital Strategy company, is based in Chula Vista, California. The team focuses on Digital Strategy and Marketing Strategy.Read More
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