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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931Undisclosed10 - 49 employeesSan Diego, CAComentum is a small San Diego, California-based software development firm. The team focuses on Custom Software Development and Web Development.Read More
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932$1,000+2 - 9 employeesSanta Clara, CAWrite Wing Media is a small Content Marketing company. They provide Content Marketing and Digital Strategy and were established in 2007.Read More
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933Undisclosed10 - 49 employeesClaremont, CAIn Claremont, California, Emblem Design Studios is a small web design agency. The team provides Web Design and Search Engine Optimization.Read More
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934$10,000+10 - 49 employeesLos Angeles, CAUearner.com is a Digital Strategy company established in 2016. The team provides Digital Strategy and Social Media Marketing and is in Los Angeles, California.Read More
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935$1,000+10 - 49 employeesLos Angeles, CADevelTon is a web design company. Their team is in Los Angeles, California and offers Web Design and Social Media Marketing.Read More
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936$10,000+10 - 49 employeesEncinitas, CACreative People Company is an Event Marketing company established in 2018. Their services include Event Marketing and Content Marketing.Read More
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937$1,000+10 - 49 employeesClovis, CAEgility Digital Marketing is a social media marketing company located in Clovis, California. They focus on Social Media Marketing and Content Marketing.Read More
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938$1,000+10 - 49 employeesDavis, CANobox Idea is a social media marketing firm. In Davis, California, the agency offers Social Media Marketing and Search Engine Optimization.Read More
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939$1,000+10 - 49 employeesSan Diego, CASMART MARKETING FIRM is a social media marketing agency established in 2020. The small team provides Social Media Marketing, Email Marketing, Search Engine Optimization, Web Design, and more. The firm is located in San Diego, California; Miami Lakes, Florida and Vancouver, Washington.Read More
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940$1,000+10 - 49 employeesVictorville, CAThe Website Exchange is a Digital Strategy company. They are in Victorville, California and have small team. They offer Digital Strategy and Search Engine Optimization.Read More
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941$5,000+10 - 49 employeesTorrance, CAKtechnologypro is a Torrance, California-based social media marketing firm. They focus on Social Media Marketing and Search Engine Optimization.Read More
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942$1,000+2 - 9 employeesSan Diego, CASocial media marketing firm Teneleven Interactive is in San Diego, California. They specialize in Social Media Marketing and Email Marketing.Read More
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943$10,000+2 - 9 employeesSacramento, CADigital Marketing Labs is an Advertising company in Sacramento, California. They provide Advertising and Branding and were established in 2012.Read More
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944$10,000+2 - 9 employeesSan Diego, CANightcoders, a website development firm, was established in 2012. The team provides Web Development and Mobile App Development and is based in San Diego, California.Read More
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945$1,000+2 - 9 employeesCitrus Heights, CAContent Marketing company Blumoo Creative is based in Citrus Heights, California. The team focuses on Content Marketing and E-Commerce Development.Read More
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946Undisclosed2 - 9 employeesAgoura Hills, CAFivespot Digital Marketing is a branding company headquartered in Agoura Hills, California. They focus on Branding and Search Engine Optimization.Read More
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947Undisclosed2 - 9 employeesVictorville, CAIn Victorville, California, Cyberdude is a SEO company. Their services include Search Engine Optimization and Pay Per Click.Read More
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948Undisclosed2 - 9 employeesVentura, CAEstablished in 1984, The Rico Group is a pay per click agency. The team provides Pay Per Click and Search Engine Optimization and is headquartered in Ventura, California.Read More
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949$1,000+2 - 9 employeesModesto, CAModesto Web Design Group is a web design agency. The agency is headquartered in Modesto, California. Their services include Web Design and Search Engine Optimization.Read More
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950Undisclosed2 - 9 employeesFullerton, CAClickMobile Solutions is a small Fullerton, California-based Content Marketing company. Their services include Content Marketing and Pay Per Click.Read More
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951$5,000+2 - 9 employeesNewport Beach, CASpring SEO, Inc. Is a social media marketing company. The Newport Beach, California-based agency was launched in 2015. Their team offers Social Media Marketing and Search Engine Optimization.Read More
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952$1,000+2 - 9 employeesLos Angeles, CAMaster of Market is a Content Marketing company launched in 2022. The small team specializes in Content Marketing and Search Engine Optimization.Read More
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953$1,000+2 - 9 employeesIrvine, CAAkorn Media LLC , an Advertising company, is in Irvine, California. They focus on Advertising and Search Engine Optimization.Read More
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954$1,000+2 - 9 employeesSacramento, CAThe Fields Agency, a branding agency, is headquartered in Sacramento, California. They provide Branding and Digital Strategy and were established in 2017.Read More
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955$1,000+2 - 9 employeesIrvine, CAKnewChoice Inc is an Irvine, California-based social media marketing agency. The team offers Social Media Marketing and Conversion Optimization.Read More
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956$1,000+2 - 9 employeesSan Diego, CARigal Media is a Marketing Strategy company headquartered in San Antonio, Texas and San Diego, California. Launched in 2014, the team focuses on Marketing Strategy and Search Engine Optimization.Read More
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957Undisclosed2 - 9 employeesNewport Beach, CAASTRAnomicals Marketing is a social media marketing firm. The team specializes in Social Media Marketing and Search Engine Optimization and is headquartered in Newport Beach, California.Read More
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958$1,000+2 - 9 employeesLaguna Hills, CAThe Webdesigns Group is a SEO company launched in 2005. Their services include Search Engine Optimization and Pay Per Click.Read More
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959Undisclosed2 - 9 employeesRancho Cucamonga, CAPublic relations agency Marketing Unlimited is based in Rancho Cucamonga, California. Launched in 2022, the team offers Public Relations and Content Marketing.Read More
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960$1,000+10 - 49 employeesFresno, CANetricks, Inc. Is a web design agency. They are located in Fresno, California and Fresno, California. Their team provides Web Design and Web Development.Read More
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