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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961$10,000+10 - 49 employeesPasadena, CAWebsite Husky is a social media marketing firm. Headquartered in Pasadena, California, their team focuses on Social Media Marketing and Search Engine Optimization.Read More
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962$1,000+10 - 49 employeesSan Diego, CABranding company Rank N Bank focuses on Branding and Content Marketing. They are based in San Diego, California.Read More
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963$1,000+10 - 49 employeesSan Jose, CASEOWebPlanet Solutions is a social media marketing company based in San Jose, California. Launched in 2013, the team focuses on Social Media Marketing and Search Engine Optimization.Read More
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964$1,000+10 - 49 employeesFremont, CAEstablished in 2012, Dukami Enterprises is a SEO company. The team offers Search Engine Optimization and Pay Per Click.Read More
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965$1,000+2 - 9 employeesHuntington Beach, CASurfline Media is a Huntington Beach, California-based marketing strategy company. They provide marketing strategy, social media marketing, content marketing, email marketing, and more and were founded in 2022.Read More
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966$1,000+2 - 9 employeesVista, CAMarketing Apes, a Digital Strategy company, was launched in 2006. They focuses on Digital Strategy and Email Marketing.Read More
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967$1,000+50 - 249 employeesSacramento, CABranding agency Beyrmedia is in Sacramento, California. The midsize team specializes in Branding, Marketing Strategy, Media Planning & Buying, Social Media Marketing, and more. The firm was founded in 2020.Read More
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968$1,000+50 - 249 employeesPalo Alto, CAMarketing Headquarter, a midsize Digital Strategy company, is located in Palo Alto, California. The team offers Digital Strategy and Social Media Marketing.Read More
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969Undisclosed50 - 249 employeesPasadena, CAHeadquartered in Pasadena, California, Custom Web Online is a SEO agency. Their services include Search Engine Optimization and Web Design.Read More
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970$1,000+50 - 249 employeesLake Forest, CAGo To Logo Experts is a social media marketing agency founded in 2010. Their team offers Social Media Marketing and Search Engine Optimization.Read More
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971$1,000+50 - 249 employeesAnaheim, CAEQuestever - ERP, CRM Implementation & Digital Marketing Company is a SEO agency. Launched in 2014, the company offers Search Engine Optimization and CRM consulting and SI.Read More
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972$1,000+50 - 249 employeesSan Francisco, CAGreen Leaf Publishers LLC is a San Francisco, California-based social media marketing company. The team specializes in Social Media Marketing and Affiliate Marketing.Read More
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973Undisclosed50 - 249 employeesLos Angeles, CAFounded in 2016, Splendid Logo is a branding agency. The team offers Branding and Social Media Marketing.Read More
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974Undisclosed50 - 249 employeesPasadena, CAWeb Design Digits is a social media marketing company. Launched in 2000, the firm is in Pasadena, California. Their services include Social Media Marketing and Search Engine Optimization.Read More
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975$1,000+50 - 249 employeesSan Diego, CAWeb Verse Pro, a branding firm, was established in 2010. They specializes in Branding and Social Media Marketing.Read More
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976Undisclosed50 - 249 employeesSan Francisco, CABrandova Tech is a San Francisco, California-based branding agency. They offer Branding and Search Engine Optimization.Read More
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977$1,000+50 - 249 employeesLos Angeles, CAClickies is a Digital Strategy company located in Los Angeles, California. They provide Digital Strategy and Social Media Marketing.Read More
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978$1,000+50 - 249 employeesLos Angeles, CACode 9 Web Studios, a SEO agency, is headquartered in Los Angeles, California. Their services include Search Engine Optimization and Pay Per Click.Read More
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979$1,000+50 - 249 employeesIrvine, CAWolcott Publishing is a SEO agency. Launched in 2010, the team provides Search Engine Optimization and Print Design.Read More
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980$1,000+50 - 249 employeesLos Angeles, CAAdvance Ghostwriting is a Los Angeles, California-based Content Marketing company. Their services include Content Marketing and Search Engine Optimization.Read More
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981$5,000+2 - 9 employeesSausalito, CALaunched in 2020, Haus Haus Design is a web design company. Their team offers Web Design and Web Development.Read More
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982$1,000+10 - 49 employeesNorco, CABranding firm Kulture Konnect was launched in 2005. The small team specializes in Branding and Marketing Strategy.Read More
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983$5,000+10 - 49 employeesMenlo Park, CABrainrider is a Digital Strategy company. They offer Digital Strategy and Content Marketing and were launched in 2010.Read More
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984$5,000+10 - 49 employeesGlendale, CASoftline Solutions is a Glendale, California-based PPC company. Established in 2008, the team offers Pay Per Click and Ecommerce Marketing.Read More
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985Undisclosed10 - 49 employeesFremont, CAIT managed services company PlanetMagpie IT Consulting was founded in 1998. The company offers IT managed services and IT staff augmentation, and is small.Read More
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986Undisclosed10 - 49 employeesWindsor, CAFounded in 2018, VTraffic.io is a Digital Strategy company. The team offers Digital Strategy and Social Media Marketing.Read More
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987$5,000+2 - 9 employeesSan Jose, CASmall Conversion Optimization company Mobistreak, Inc., is in San Jose, California and Walnut, California. The team specializes in Conversion Optimization and Pay Per Click.Read More
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988$1,000+2 - 9 employeesSanta Cruz, CAIversen Design is a web design company. They specialize in Web Design and Search Engine Optimization and were launched in 2009. The agency is in Santa Cruz, California.Read More
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989$1,000+2 - 9 employeesSan Jose, CAIT managed services company offthegridit was founded in 2012. The team provides IT managed services and Cybersecurity.Read More
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990$1,000+10 - 49 employeesUnion City, CASocial media marketing company AI Source Hub was launched in 2022. The small team focuses on Social Media Marketing and Content Marketing.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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