Top 100 SEO Companies in California
The Best of December 2025Looking 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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2041$5,000+2 - 9 employeesSan Francisco, CAVideo production agency STEPHEN PORTER PRODUCTIONS was founded in 2012. The team focuses on Video Production and Content Marketing.Read More
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2042Undisclosed2 - 9 employeesSunnyvale, CAPorfura, a small Digital Strategy company, is in Sunnyvale, California. The team offers Digital Strategy and Email Marketing.Read More
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2043Undisclosed2 - 9 employeesFremont, CAV Eight Marketing is a social media marketing company. The Fremont, California-based agency was established in 2019. Their services include Social Media Marketing and Content Marketing.Read More
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2044$1,000+2 - 9 employeesLaguna Beach, CASDLT Digital Marketing is a social media marketing company. The Laguna Beach, California-based team specializes in Social Media Marketing and Search Engine Optimization.Read More
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2045$5,000+2 - 9 employeesFresno, CACloud1Marketing is a Digital Strategy company founded in 2012. Located in Fresno, California, the team offers Digital Strategy and Social Media Marketing.Read More
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2046$1,000+2 - 9 employeesLos Angeles, CASocial media marketing agency LeadGrow Media was established in 2018. The small team focuses on Social Media Marketing and Search Engine Optimization.Read More
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2047$1,000+2 - 9 employeesDublin, CATechisthan is a SEO company. They are based in Dublin, California, and their services include Search Engine Optimization and Digital Strategy.Read More
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2048$1,000+2 - 9 employeesSan Francisco, CAAutusus Digital Marketing, an Advertising company, is in San Francisco, California. The team focuses on Advertising and Social Media Marketing.Read More
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2049$1,000+Freelancer employeesOceanside, CALeashless Media is a Content Marketing company. The agency is in Oceanside, California. Their team offers Content Marketing and Corporate Photography.Read More
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2050$1,000+50 - 249 employeesLos Angeles, CAFounded in 2008, Quantumlinx is a SEO company. The company focuses on Search Engine Optimization and Pay Per Click, and is midsize.Read More
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2051UndisclosedFreelancer employeesSacramento, CARankingRuler SEO is a small social media marketing company. They focus on Social Media Marketing and Search Engine Optimization and were established in 2024.Read More
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2052$5,000+Freelancer employeesFullerton, CASerenity Creative Solutions is a small PPC agency established in 2024. Their services include Pay Per Click and Search Engine Optimization.Read More
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2053$1,000+Freelancer employeesBelmont, CANarratives by Nazar is a Belmont, California-based social media marketing agency. They provide Social Media Marketing and Digital Strategy.Read More
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2054$5,000+2 - 9 employeesMoreno Valley, CAInTouch Marketing is a web design company. Established in 2012, their team focuses on Web Design and Content Marketing.Read More
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2055$1,000+2 - 9 employeesCarlsbad, CAAE Design Co. Is a website development firm. Launched in 2012, the company is in Carlsbad, California. Their services include Web Development and Branding.Read More
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2056$1,000+Freelancer employeesLakewood, CAMargaux Agency, LLC is a small Lakewood, California-based Digital Strategy company. Their services include Digital Strategy and Marketing Strategy.Read More
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2057Undisclosed2 - 9 employeesLos Angeles, CASmall web design company SheTech, is based in Los Angeles, California. The team focuses on Web Design and Web Development.Read More
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2058$1,000+2 - 9 employeesEl Dorado Hills, CAFriday Marketing Inc is a small El Dorado Hills, California-based Content Marketing company. The team specializes in Content Marketing and Marketing Strategy.Read More
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2059Undisclosed2 - 9 employeesVallejo, CAResults Marketing is a social media marketing company. The firm is headquartered in Vallejo, California. Their team provides Social Media Marketing and Web Design.Read More
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2060$5,000+10 - 49 employeesLos Angeles, CAEstablished in 1984, Maestro Digital is an user experience agency. The team offers UX/UI Design and Branding.Read More
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2061UndisclosedFreelancer employeesSan Diego, CAKatie Fellenz Digital Marketer is a Digital Strategy company. The San Diego, California-based team focuses on Digital Strategy and Content Marketing.Read More
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2062$1,000+Freelancer employeesIrvine, CALocated in Irvine, California, Empyreal Motions is a Content Marketing company. Founded in 2015, the team provides Content Marketing and Digital Strategy.Read More
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2063$1,000+Freelancer employeesLong Beach, CALimemob is a branding firm. The Long Beach, California-based company was founded in 2017. Their team specializes in Branding and Search Engine Optimization.Read More
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2064$1,000+Freelancer employeesWildomar, CACOUR Digital, a Content Marketing company, was launched in 2018. They provides Content Marketing and Pay Per Click.Read More
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2065$1,000+Freelancer employeesIrvine, CASEO agency LUK Digital was established in 2020. The small team provides Search Engine Optimization and Digital Strategy.Read More
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2066$5,000+2 - 9 employeesSan Diego, CATop Rank Solutions, a SEO agency, is based in San Diego, California. Founded in 2013, the team provides Search Engine Optimization and Social Media Marketing.Read More
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2067$5,000+2 - 9 employeesLos Angeles, CAOrganic SEO Marketing, a small SEO agency, is in Los Angeles, California. Their services include Search Engine Optimization and Web Design.Read More
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2068$5,000+2 - 9 employeesSanta Monica, CASilicon Beach Digital is a SEO company. Based in Santa Monica, California, the team specializes in Search Engine Optimization and Web Design.Read More
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2069Undisclosed2 - 9 employeesSan Francisco, CASEO company Seo Socially is headquartered in San Francisco, California. They focus on Search Engine Optimization and Web Design.Read More
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2070Undisclosed2 - 9 employeesVista, CASEO company Beacon SEO is in Vista, California. Founded in 2018, the team provides Search Engine Optimization and Pay Per Click.Read More
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