Top 100 SEO Companies in California
The Best of September 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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1681$5,000+2 - 9 employeesFremont, CAEstablished in 2018, Search Lab is a SEO agency. The small team specializes in Search Engine Optimization and Social Media Marketing.Read More
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1682$5,000+2 - 9 employeesWestlake Village, CASEO company and web development company Clearian Communications is based in Westlake Village, California. The team focuses on Search Engine Optimization and Web Development.Read More
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1683Undisclosed2 - 9 employeesSacramento, CAAkamai WP, a SEO agency and web design agency, was launched in 2019. The small team focuses on Search Engine Optimization and Web Design.Read More
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1684$75,000+250 - 999 employeesLong Beach, CAAW Solutions is a branding firm. The New York, New York-based company was founded in 2011. Their team offers Branding and Email Marketing.Read More
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1685$1,000+10 - 49 employeesSanta Monica, CARead More
In Montreal, Canada; Toronto, Canada; Ottawa, Canada and Santa Monica, California, Social Media 55 is a social media marketing agency. The small firm was launched in 2014. Their team provides Social Media Marketing, Search Engine Optimization, Pay Per Click, and E-Commerce Development.
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HGregoireIndustries
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1686$1,000+Freelancer employeesLos Angeles, CA1993 Designs is a web design company located in Los Angeles, California. They provide Web Design and Pay Per Click and were established in 2020.Read More
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1687$5,000+2 - 9 employeesIrvine, CASmall web development firm Softshop, is in Irvine, California. Their services include Web Development and Search Engine Optimization.Read More
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1688$5,000+10 - 49 employeesSan Diego, CALaunched in 2016, pirawna is a small advertising company headquartered in San Diego, California and Frisco, Texas. Their services include advertising, media planning & buying, conversion optimization, search engine optimization, and more.Read More
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1689$1,000+Freelancer employeesAnaheim, CALaunched in 2020, MarketStra LLC - SEO Experts, a small SEO agency, is located in Anaheim, California. Their services include Search Engine Optimization and Advertising.Read More
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1690$1,000+Freelancer employeesIrvine, CAEstablished in 2012, SEO Expert Dmytro Verzhykovskyi is a SEO agency. The firm focuses on Search Engine Optimization and Market Research, and is small.Read More
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1691$1,000+10 - 49 employeesLos Angeles, CALeCamel is a SEO agency founded in 2012. The company focuses on Search Engine Optimization and Logo.Read More
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1692$1,000+2 - 9 employeesLos Angeles, CAServiceZone is a web design agency. Their small team is in Los Angeles, California and focuses on Web Design and Web Development. The company was founded in 2018.Read More
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1693Undisclosed10 - 49 employeesSan Diego, CAAffinity Design Hub, a marketing strategy company, was founded in 2015. Their small team is based in San Diego, California. Their services include marketing strategy, search engine optimization, graphic design, logo, and more.Read More
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1694$5,000+2 - 9 employeesFontana, CASEO services firm Everest Legal Marketing is based in Fontana, California. Their services include Search Engine Optimization and Web Design.Read More
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1695$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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1696$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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1697$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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1698$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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1699$1,000+10 - 49 employeesMonterey, CAByte Technology, a web design agency, is in Littleton, Colorado; Monterey, California; Maple Grove, Minnesota and New York, New York. The small team provides Web Design, Web Development, E-Commerce Development, Search Engine Optimization, and more. The agency was established in 2001.Read More
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1700$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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1701$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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1702$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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1703$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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1704$1,000+50 - 249 employeesLos Angeles, CALaunched in 2013, Marqade Inc is a Content Marketing company. Headquartered in Alpharetta, Georgia; North Sydney, Australia; Charlotte, North Carolina and Los Angeles, California, their midsize team offers Content Marketing, Ecommerce Marketing, Search Engine Optimization, Branding, and more.Read More
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1705$1,000+Freelancer employeesSan Diego, CAEric Strate is a SEO agency and Generative AI company. Founded in 2012, the team provides Search Engine Optimization and Generative AI.Read More
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1706$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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1707$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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1708Undisclosed10 - 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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1709Undisclosed2 - 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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1710Undisclosed2 - 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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