Top 100 SEO Companies in California
The Best of April 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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$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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2161$1,000+Freelancer employeesLos Angeles, CASoftyfier is a Los Angeles, California-based web design agency. Their services include Web Design and Web Development.Read More
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2162Undisclosed2 - 9 employeesSan Marcos, CAMilVet Media is a Digital Strategy company launched in 2013. The team provides Digital Strategy and Web Development.Read More
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2163$1,000+2 - 9 employeesLong Beach, CALocal Galaxy is a web design agency established in 2000. The small team offers Web Design and Web Development.Read More
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2164$1,000+50 - 249 employeesSan Francisco, CAWired Wisdom Media is a midsize Ecommerce Marketing company. Founded in 2022, the team focuses on Ecommerce Marketing and Branding.Read More
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2165Undisclosed2 - 9 employeesElk Grove, CAFounded in 2020, Cattzilla is a small Elk Grove, California-based Content Marketing company. Their team focuses on Content Marketing and Conversion Optimization.Read More
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2166$1,000+Freelancer employeesWest Hollywood, CASimple More Online is a branding agency. Launched in 2015, their team offers Branding and Conversion Optimization.Read More
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2167$1,000+250 - 999 employeesLos Angeles, CASEO company SmartSites is based in Paramus, New Jersey; Chamblee, Georgia; Detroit, Michigan and Raleigh, North Carolina. They provide Search Engine Optimization, Pay Per Click, Advertising, and Social Media Marketing and were launched in 2011.Read More
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2168$5,000+Freelancer employeesAlameda, CALeverageDigital.io is a web design agency. Established in 2020, the team focuses on Web Design and Search Engine Optimization.Read More
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2169UndisclosedFreelancer employeesSan Diego, CAJuggle Media is a social media marketing company. The San Diego, California-based firm was established in 2022. Their services include Social Media Marketing and Content Marketing.Read More
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2170$1,000+Freelancer employeesLos Angeles, CASmall Digital Strategy company Click SEO Agency, is located in Los Angeles, California. The team provides Digital Strategy and Content Marketing.Read More
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2171$1,000+Freelancer employeesPacheco, CAABDigitalGrowthPro is a Digital Strategy company. The Pacheco, California-based team offers Digital Strategy and Email Marketing.Read More
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2172$1,000+Freelancer employeesVallejo, CALamb Consulting - Small Biz Marketing is an Advertising company headquartered in Vallejo, California. The team focuses on Advertising and Graphic Design.Read More
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2173$1,000+Freelancer employeesSan Diego, CAGibbard Web Design is a website development firm. Established in 2006, the firm is located in San Diego, California. Their team provides Web Development and Branding.Read More
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2174$1,000+2 - 9 employeesSan Jose, CAMagnate Marketing Agency is a small San Jose, California-based Advertising company. The team specializes in Advertising and Branding.Read More
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2175$10,000+2 - 9 employeesSan Francisco, CASmall Marketing Strategy company Spice Marketing, is headquartered in San Francisco, California. Their services include Marketing Strategy and Branding.Read More
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2176$1,000+2 - 9 employeesSan Mateo, CAMagpie Child Care Digital Marketing, a Digital Strategy company, is headquartered in San Mateo, California. Their services include Digital Strategy and Marketing Strategy.Read More
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2177UndisclosedFreelancer employeesFremont, CAContent Marketing company Freelancer was established in 2022. The firm specializes in Content Marketing and Search Engine Optimization, and is small.Read More
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2178UndisclosedFreelancer employeesRiverbank, CAWebdul, a web design company, is in Riverbank, California. The team provides Web Design and Web Development.Read More
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2179UndisclosedFreelancer employeesIrvine, CAFounded in 2023, Metis Digital is a small SEO agency. Their team offers Search Engine Optimization and Social Media Marketing.Read More
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2180Undisclosed50 - 249 employeesFresno, CADesignix LLC is a Fresno, California-based social media marketing firm. The team offers Social Media Marketing and Search Engine Optimization.Read More
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2181UndisclosedFreelancer employeesLos Angeles, CALos Angeles Web Designs, a small web design agency, is in Los Angeles, California. Their services include Web Design and Search Engine Optimization.Read More
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2182$25,000+Freelancer employeesWest Hollywood, CAGothic Moon Creative Studio LLC is a SEO agency. The agency is headquartered in West Hollywood, California. Their team specializes in Search Engine Optimization and Web Design.Read More
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2183UndisclosedFreelancer employeesSan Diego, CABest Sandiego Web Design Company, a social media marketing company, was established in 2024. The company focuses on Social Media Marketing and Search Engine Optimization.Read More
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2184$1,000+Freelancer employeesGardena, CA10xDev is a SEO services firm. Established in 2025, the agency focuses on Search Engine Optimization and Web Design.Read More
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2185$1,000+Freelancer employeesSan Francisco, CAClaire Bough Content Marketing, a small Content Marketing company, is headquartered in San Francisco, California. The team offers Content Marketing and Marketing Strategy.Read More
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2186Undisclosed50 - 249 employeesNewport Beach, CAMilan CM is a Funding & Investment company. Launched in 2025, the team focuses on Funding & Investment and Direct Marketing. The company is in Newport Beach, California.Read More
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2187$1,000+Freelancer employeesEl Dorado Hills, CADigital Presence Co is a web design agency. Founded in 2026, the team offers Web Design and Search Engine Optimization. The agency is based in El Dorado Hills, California.Read More
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2188$1,000+50 - 249 employeesSan Francisco, CALaunched in 2013, Alsett Advertising & Printing is an Advertising company. Headquartered in Las Vegas, Nevada and Las Vegas, Nevada, the team offers Advertising and Market Research.Read More
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2189$100,000+250 - 999 employeesOakland, CALQ Digital, a SEO services firm, offer Search Engine Optimization and Social Media Marketing. They were established in 2006.Read More
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2190$5,000+2 - 9 employeesSan Diego, CAEstablished in 1987, Visual Asylum is an Advertising company. The firm focuses on Advertising and Branding.Read More
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