Top 100 SEO Companies in California
The Best of June 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.
Jump to Most Reviewed Companies
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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1891Undisclosed2 - 9 employeesSan Diego, CAKickin Knowledge is a small San Diego, California-based Advertising company. The team focuses on Advertising and Branding.Read More
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1892$5,000+2 - 9 employeesSan Diego, CALocated in San Diego, California, Atlantis Marketing is an Advertising company. They offer Advertising and Branding.Read More
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1893$5,000+2 - 9 employeesSan Diego, CABlackwood Industries is an Advertising company based in San Diego, California. The team provides Advertising and Branding.Read More
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1894$5,000+2 - 9 employeesSan Francisco, CACharles Communications Associates is an Advertising company. They focus on Advertising and Branding and were established in 2003. The firm is based in San Francisco, California.Read More
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1895$5,000+2 - 9 employeesMorgan Hill, CAScarlett Vision Media Inc. Is an Advertising company established in 2005. The team specializes in Advertising and Branding.Read More
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1896$5,000+2 - 9 employeesLafayette, CATech Design Studios is a Lafayette, California-based Advertising company. The team provides Advertising and Branding.Read More
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1897$5,000+2 - 9 employeesRiverside, CAMind and Mill is a small Riverside, California-based Advertising company. The team provides Advertising and Branding.Read More
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1898$5,000+2 - 9 employeesLong Beach, CAOhso! design is an Advertising company. They are based in Long Beach, California and have small team of experts. Their services include Advertising and Branding.Read More
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1899$5,000+2 - 9 employeesLong Beach, CA3rd Street Marketing, Inc., an Advertising company, is based in Long Beach, California. The team focuses on Advertising and Branding.Read More
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1900$5,000+2 - 9 employeesBeverly Hills, CATopco Marketing is an Advertising company. Headquartered in Beverly Hills, California, the company was founded in 2011. Their team offers Advertising and Branding.Read More
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1901$5,000+2 - 9 employeesSanta Monica, CAQuaintise is a SEO services firm. Founded in 2003, the team specializes in Search Engine Optimization and Advertising.Read More
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Community Health Network of ConnecticutIndustries
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1902$5,000+2 - 9 employeesRoseville, CAWicked Web Design, an Advertising company, is headquartered in Roseville, California. They provide Advertising and Branding.Read More
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1903$5,000+2 - 9 employeesSan Diego, CASocial Doctor is a SEO agency. Their small team is headquartered in San Diego, California and focuses on Search Engine Optimization and Web Design. The company was launched in 2007.Read More
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1904$5,000+2 - 9 employeesSan Diego, CAFounded in 1994, Mth Degree is an Advertising company. Their team offers Advertising and Branding.Read More
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1905$5,000+2 - 9 employeesSan Diego, CAKInteractive Agency is a San Diego, California-based Advertising company. Launched in 2010, the team focuses on Advertising and Digital Strategy.Read More
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1906$5,000+2 - 9 employeesSan Jose, CAMilagro Marketing is an Advertising company located in San Jose, California. They focus on Advertising and Branding and were founded in 2001.Read More
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1907$5,000+2 - 9 employeesSan Jose, CAElkins Retail Advertising is a San Jose, California-based Advertising company. The team provides Advertising and Branding.Read More
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1908$5,000+2 - 9 employeesFresno, CAFive Creative Group is an Advertising company founded in 1995. In Fresno, California, the team focuses on Advertising and Branding.Read More
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1909$5,000+2 - 9 employeesWindsor, CAEstablished in 1991, Catamaran Marketing is an Advertising company. Their team focuses on Advertising and Branding.Read More
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1910$5,000+2 - 9 employeesPleasanton, CALocated in Pleasanton, California, Local SEO Guide is a small Advertising company. The team offers Advertising and Branding.Read More
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1911$5,000+2 - 9 employeesFresno, CAReal-Time OutSource is a Fresno, California-based Advertising company. Launched in 2009, the team offers Advertising and Branding.Read More
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1912$5,000+2 - 9 employeesSanta Clarita, CANine Eye Interactive Media is a small Advertising company headquartered in Santa Clarita, California and Los Angeles, California. Their services include Advertising and Branding.Read More
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1913$1,000+2 - 9 employeesSanta Monica, CACapture Media is a SEO agency. Based in Santa Monica, California, the team focuses on Search Engine Optimization and Social Media Marketing.Read More
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1914$1,000+2 - 9 employeesOakland, CAJade Orchard is a Marketing Strategy company. They are headquartered in Oakland, California and have small team of experts. Their services include Marketing Strategy and Pay Per Click.Read More
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1915$5,000+2 - 9 employeesBurbank, CABackhouse Media, LLC is a Burbank, California-based Marketing Strategy company. Founded in 2005, the team offers Marketing Strategy and Web Design.Read More
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1916$5,000+2 - 9 employeesCosta Mesa, CAWebsite Muscle is a Marketing Strategy company based in Costa Mesa, California. They specialize in Marketing Strategy and Social Media Marketing.Read More
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1917$5,000+2 - 9 employeesGlendale, CATheMEDIAWORX is a branding agency. Their team is headquartered in Glendale, California and specializes in Branding and Web Design.Read More
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1918$5,000+2 - 9 employeesSan Francisco, CARooster Grin is a web design company. Founded in 2011, the team specializes in Web Design and Web Development.Read More
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1919$5,000+2 - 9 employeesLos Angeles, CAMicroComp LLC is an e-commerce development firm. The small Los Angeles, California-based team offers E-Commerce Development and Graphic Design. The firm was launched in 2009.Read More
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1920$5,000+2 - 9 employeesLos Angeles, CATYRANT KING INC is a Los Angeles, California-based e-commerce development company. Founded in 2002, the team specializes in E-Commerce Development and Graphic Design.Read More
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