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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2161Undisclosed2 - 9 employeesMurrieta, CAPixelthon is an Email Marketing company launched in 2011. The small team provides Email Marketing and Mobile & App Marketing.Read More
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2162Undisclosed2 - 9 employeesWalnut Creek, CAEstablished in 2007, Ahilia is a small branding company. Their services include Branding and Event Marketing.Read More
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2163Undisclosed2 - 9 employeesLancaster, CAAV Web Designs, an Advertising company, was founded in 2000. The team offers Advertising and Email Marketing and is located in Lancaster, California.Read More
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2164Undisclosed2 - 9 employeesWalnut Creek, CABranding company Social Pop Creative was launched in 2011. Based in Walnut Creek, California, the team provides Branding and Email Marketing.Read More
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2165Undisclosed2 - 9 employeesUpland, CAAd America is a web design agency. The team specializes in Web Design and Branding, and the company is located in Upland, California.Read More
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2166Undisclosed2 - 9 employeesVisalia, CADMI Agency is an Email Marketing company launched in 1996. Their services include Email Marketing and Graphic Design.Read More
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2167Undisclosed2 - 9 employeesPasadena, CASEO Firepower is an Other Digital Marketing and SEO agency. The team specializes in Other Digital Marketing and Search Engine Optimization, and the firm is in Pasadena, California.Read More
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2168Undisclosed2 - 9 employeesVacaville, CAContent Marketing company Legacy Innovative Solutions was founded in 2014. The team focuses on Content Marketing and Email Marketing.Read More
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2169Undisclosed2 - 9 employeesWalnut Creek, CASomethumb Web Design and Development is a small website development company launched in 2003. Their team offers Web Development and Search Engine Optimization.Read More
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2170Undisclosed2 - 9 employeesVista, CAJewel Web & Design is a Vista, California-based graphic design agency. Launched in 2008, the team offers Graphic Design and Web Design.Read More
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2171Undisclosed2 - 9 employeesVista, CAWeb design company WP Management Team was established in 2001. The team specializes in Web Design and Web Development and is in Vista, California.Read More
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2172Undisclosed2 - 9 employeesLaguna Niguel, CADigital Strategy and SEO company OSI Local was founded in 2008. Based in Laguna Niguel, California, the team provides Digital Strategy and Search Engine Optimization.Read More
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2173Undisclosed2 - 9 employeesLivermore, CANetwork Software Services is a software development company. Their team is located in Livermore, California and offers Custom Software Development and UX/UI Design.Read More
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2174Undisclosed2 - 9 employeesSan Francisco, CASEO company and social media marketing company Built To Scale provides Search Engine Optimization and Social Media Marketing. They are headquartered in San Francisco, California.Read More
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2175Undisclosed2 - 9 employeesSimi Valley, CAHeadquartered in Simi Valley, California, New Incite is a Marketing Strategy and SEO company. The team offers Marketing Strategy and Search Engine Optimization.Read More
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2176Undisclosed2 - 9 employeesCarpinteria, CAJBS Partners is a small pay per click company and SEO agency headquartered in Carpinteria, California. Their services include Pay Per Click and Search Engine Optimization.Read More
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2177Undisclosed2 - 9 employeesArcata, CAEvenVision, a social media marketing agency, was established in 2007. The team focuses on Social Media Marketing and Web Design.Read More
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2178Undisclosed2 - 9 employeesLos Angeles, CABRADIENT, a web design company, is based in Los Angeles, California. The team focuses on Web Design and Web Development.Read More
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2179Undisclosed2 - 9 employeesElk Grove, CAEstablished in 2018, BAI Digital, a small SEO agency and web design company, is in Elk Grove, California. Their services include Search Engine Optimization and Web Design.Read More
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2180Undisclosed2 - 9 employeesElk Grove, CAHampton Global Communications is a SEO agency and web design agency located in Elk Grove, California. Established in 2011, the team provides Search Engine Optimization and Web Design.Read More
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2181Undisclosed2 - 9 employeesElk Grove, CAWXPERTS.CO, a small SEO company and web design company, is headquartered in Elk Grove, California. The team specializes in Search Engine Optimization and Web Design.Read More
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2182Undisclosed2 - 9 employeesElk Grove, CALocated in Elk Grove, California, Re Invent Marketing is a small SEO company and social media marketing company. Their services include Search Engine Optimization and Social Media Marketing.Read More
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2183Undisclosed2 - 9 employeesCommerce, CAMinorea is a CRM consulting and SI company. They specialize in CRM consulting and SI and Business Consulting and are based in Commerce, California and Cerritos, California.Read More
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2184Undisclosed2 - 9 employeesNewport Beach, CAOrange Marketing is a Marketing Strategy company. Launched in 2018, the firm is located in Newport Beach, California. Their services include Marketing Strategy and Sales Outsourcing.Read More
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2185Undisclosed2 - 9 employeesLos Angeles, CAGelber Consulting Group, a SEO company and pay per click agency, was founded in 2018. The small team provides Search Engine Optimization and Pay Per Click.Read More
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2186Undisclosed2 - 9 employeesSolana Beach, CASEO agency and pay per click agency Raw AMZ is headquartered in Solana Beach, California. Launched in 2016, the team focuses on Search Engine Optimization and Pay Per Click.Read More
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2187Undisclosed2 - 9 employeesLos Angeles, CASocial media marketing company The Freeman Agency was founded in 2020. The agency provides Social Media Marketing and Search Engine Optimization.Read More
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2188Undisclosed2 - 9 employeesSan Clemente, CAUnsung Studio, a branding firm, provides Branding and Web Design. The company is located in San Clemente, California.Read More
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2189Undisclosed2 - 9 employeesSanta Rosa, CASanta Rosa Marketing & SEO Agency is a SEO agency. They are headquartered in Santa Rosa, California and have small team. Their team offers Search Engine Optimization and Pay Per Click.Read More
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2190Undisclosed2 - 9 employeesSan Diego, CAInfatex, Inc is a web development company. The San Diego, California-based agency specializes in Web Development and Social Media Marketing.Read More
Industries
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