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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1681Undisclosed10 - 49 employeesSan Francisco, CAHello Next Step is an e-commerce development firm. Their team is based in San Francisco, California. The firm offers E-Commerce Development and Graphic Design.Read More
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1682Undisclosed10 - 49 employeesLos Angeles, CAIonic Media, an Advertising company, was established in 2002. The team focuses on Advertising and Search Engine Optimization and is headquartered in Los Angeles, California.Read More
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1683Undisclosed10 - 49 employeesSan Diego, CANOYO Web Development, a SEO company, is in San Diego, California. They focus on Search Engine Optimization and Web Design and were established in 2007.Read More
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1684Undisclosed10 - 49 employeesSan Diego, CAEp host, a web design company, was founded in 2007. Based in San Diego, California, the team focuses on Web Design and Web Development.Read More
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1685Undisclosed10 - 49 employeesLos Angeles, CAWeb Leads Inc is a small Advertising company. They specialize in Advertising and Mobile App Development and were established in 2010.Read More
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1686Undisclosed10 - 49 employeesAlameda, CAWest Advertising is an Email Marketing company. Launched in 1988, the team specializes in Email Marketing and Media Planning & Buying.Read More
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1687Undisclosed10 - 49 employeesSan Francisco, CATVEspañol Inc. Is an Advertising company. Established in 1993, the firm provides Advertising and Graphic Design.Read More
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1688Undisclosed10 - 49 employeesOrange, CAHeadquartered in Orange, California, Total Spectrum Advertising is an Advertising company. They focus on Advertising and Logo.Read More
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1689Undisclosed10 - 49 employeesLos Angeles, CAFounded in 2007, Cyberset is a small graphic design agency headquartered in Los Angeles, California. Their team focuses on Graphic Design and Mobile & App Marketing.Read More
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1690Undisclosed10 - 49 employeesPleasanton, CARhino Digital Media, Inc. Is a Content Marketing company. The firm is headquartered in Pleasanton, California. Their services include Content Marketing and Email Marketing.Read More
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1691Undisclosed10 - 49 employeesMountain View, CACypress Digital Media is a Mountain View, California-based application development firm. Launched in 2010, the team specializes in Mobile App Development and Search Engine Optimization.Read More
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1692Undisclosed10 - 49 employeesSan Diego, CACirca Interactive is a branding agency established in 2011. The firm offers Branding and Search Engine Optimization.Read More
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1693Undisclosed10 - 49 employeesSanta Ana, CAPay per click company Acumen Velocity was launched in 2007. The small team provides Pay Per Click and Search Engine Optimization.Read More
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1694Undisclosed10 - 49 employeesSan Diego, CAStats Digital is an Email Marketing company. They offer Email Marketing and Search Engine Optimization and are based in San Diego, California.Read More
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1695Undisclosed10 - 49 employeesEl Segundo, CANOMAD Digital + Venture, a branding firm, was launched in 2018. The company specializes in Branding and Content Marketing, and is small.Read More
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1696Undisclosed10 - 49 employeesSan Luis Obispo, CAThe Parable Group is an Advertising company. The company is headquartered in San Luis Obispo, California. Their team offers Advertising and Email Marketing.Read More
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1697Undisclosed10 - 49 employeesWalnut Creek, CAWPF Creatives is a SEO agency. They provide Search Engine Optimization and Content Marketing and are based in Walnut Creek, California.Read More
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1698Undisclosed10 - 49 employeesSan Diego, CALaunched in 2016, 4Blooms.Guru is an Advertising company. The company provides Advertising and Email Marketing.Read More
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1699Undisclosed10 - 49 employeesLos Angeles, CABranding company Bud Marketers, LTD was founded in 2002. The team focuses on Branding and E-Commerce Development and is in Los Angeles, California.Read More
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1700Undisclosed10 - 49 employeesHawthorne, CAAuroinfo - Hawthorne is a small AI firm. They provide Artificial Intelligence and Content Marketing and were established in 2002.Read More
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1701Undisclosed10 - 49 employeesRancho Cucamonga, CATIG ADVERTISING, INC. Is a Content Marketing company. Established in 2016, the agency is located in Rancho Cucamonga, California. Their team offers Content Marketing and Pay Per Click.Read More
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1702Undisclosed10 - 49 employeesRancho Cucamonga, CACRM consulting and SI company INDEVA is in Rancho Cucamonga, California. They focus on CRM consulting and SI and Email Marketing and were founded in 1998.Read More
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1703Undisclosed10 - 49 employeesChico, CASteps Marketing is a graphic design company launched in 2007. The small team focuses on Graphic Design and Marketing Strategy.Read More
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1704Undisclosed10 - 49 employeesIrvine, CABrandcasters, Inc. - Podetize, an Advertising company, was launched in 2017. The small team offers Advertising and Content Marketing.Read More
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1705Undisclosed10 - 49 employeesManhattan Beach, CAPipeline (Manhattan Beach, California) is a small branding agency headquartered in Manhattan Beach, California. The team specializes in Branding and Email Marketing.Read More
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1706Undisclosed10 - 49 employeesSanta Barbara, CADigital Performance Marketing Group is a Santa Barbara, California-based Advertising company. The team focuses on Advertising and Email Marketing.Read More
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1707Undisclosed10 - 49 employeesSan Luis Obispo, CAVibrant Agency, an e-commerce development firm, was launched in 2014. Located in San Luis Obispo, California, the team focuses on E-Commerce Development and Graphic Design.Read More
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1708Undisclosed10 - 49 employeesMenlo Park, CAContinuum Global is an Email Marketing company. Their team is located in Menlo Park, California. The firm focuses on Email Marketing and Search Engine Optimization.Read More
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1709Undisclosed10 - 49 employeesAntioch, CA365 Days On is an IT managed services company launched in 2015. The team provides IT managed services and Web Development and is headquartered in Antioch, California.Read More
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1710Undisclosed10 - 49 employeesPleasant Hill, CAKha Creation USA, a web design agency, is located in Pleasant Hill, California. The team specializes in Web Design and Web Development.Read More
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Check out a SEO Company in California with the most new reviews in the past 12 months.
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