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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631$10,000+2 - 9 employeesLos Angeles, CALucid Public Relations is a SEO services firm. The company is located in Los Angeles, California. Their services include Search Engine Optimization and Social Media Marketing.Read More
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632$1,000+2 - 9 employeesWestlake Village, CASEOpologist, a web design company, is based in Westlake Village, California. They offer Web Design and Search Engine Optimization and were established in 2020.Read More
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633$1,000+10 - 49 employeesSanta Clarita, CAMarketing Six is a small SEO company. Established in 2019, the team specializes in Search Engine Optimization and Pay Per Click.Read More
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634$10,000+50 - 249 employeesLos Angeles, CAMedia Trovert is a midsize Los Angeles, California-based PPC agency. The team offers Pay Per Click and Search Engine Optimization.Read More
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635$1,000+2 - 9 employeesSan Diego, CAOla Moana Marketing is a San Diego, California-based SEO company. They specialize in Search Engine Optimization and Social Media Marketing.Read More
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636$5,000+50 - 249 employeesPoway, CAMidsize Advertising company Anderson Direct & Digital, is based in Poway, California. Their services include Advertising and Branding.Read More
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637$1,000+50 - 249 employeesSan Francisco, CAEquivity is a graphic design company. Founded in 2014, the team focuses on Graphic Design and Marketing Strategy.Read More
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638$5,000+2 - 9 employeesLos Angeles, CATopHatRank.com is a SEO services firm. The Los Angeles, California-based firm was launched in 2008. Their services include Search Engine Optimization and Content Marketing.Read More
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639Undisclosed2 - 9 employeesFullerton, CADigital Owl Group is a SEO services firm. The company is based in Fullerton, California. Their services include Search Engine Optimization and Conversion Optimization.Read More
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640$1,000+250 - 999 employeesLaguna Beach, CAData4eCom is a midsize Laguna Beach, California-based Advertising company. The team offers Advertising and Search Engine Optimization.Read More
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641$1,000+2 - 9 employeesSan Francisco, CAEstablished in 2000, ROIworks Digital is a SEO company. The company specializes in Search Engine Optimization and Content Marketing, and is small.Read More
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642Undisclosed2 - 9 employeesCarlsbad, CALocated in Carlsbad, California, All Maven is a small graphic design company. The team focuses on Graphic Design and Branding.Read More
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643$1,000+2 - 9 employeesVista, CASEO company GoBeRewarded Marketing Agency was launched in 2015. The team offers Search Engine Optimization and Pay Per Click.Read More
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644$10,000+250 - 999 employeesLos Angeles, CAMidsize Digital Strategy company American Seo Experts, is in Los Angeles, California. Their services include Digital Strategy and Search Engine Optimization.Read More
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645$10,000+250 - 999 employeesGlendale, CABased in Glendale, California, Amaze Logo is a midsize branding firm. Their services include Branding and Search Engine Optimization.Read More
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646Undisclosed250 - 999 employeesRiverside, CAThePulse Creative Solutions is a midsize Riverside, California-based branding firm. The team provides Branding and Search Engine Optimization.Read More
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647$10,000+50 - 249 employeesLos Angeles, CARead More
9thWonder is a strategic marketing, media, and idea company founded in 2018. With headquarters in Houston and offices across the US, Argentina, and Vietnam, the team of about 140 employees offers media planning and buying, advertising, branding, PR, and market research services. Their enterprise, midmarket, and small business clients are in the IT, consumer products, and healthcare industries, amongst others.
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Coleman Natural FoodsIndustries
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648$10,000+2 - 9 employeesDowney, CADzino Web Development is a SEO company based in Downey, California. Their services include Search Engine Optimization and Web Design.Read More
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649$10,000+10 - 49 employeesSan Diego, CASEO Services California is a SEO agency. They are based in San Diego, California and have small team. They specialize in Search Engine Optimization and Web Development.Read More
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650$1,000+2 - 9 employeesOceanside, CALaunched in 2020, Little Big Marketing San Diego, a small social media marketing firm, is based in Oceanside, California. Their services include Social Media Marketing and Search Engine Optimization.Read More
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651$10,000+50 - 249 employeesSan Francisco, CAIn San Francisco, California and St. Louis , Missouri, H&L Partners is a midsize SEO services firm. The team offers Search Engine Optimization and Web Design.Read More
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652$100,000+50 - 249 employeesSan Diego, CADeck 7, Inc is an Advertising company. Established in 2015, the team offers Advertising and Search Engine Optimization. The firm is headquartered in San Diego, California.Read More
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653Undisclosed50 - 249 employeesSan Diego, CAEstablished in 2012, PACIFIC Digital Group is a Content Marketing company. The team offers Content Marketing and Event Marketing.Read More
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654$1,000+50 - 249 employeesLos Angeles, CAWebzool Creative Inc. Is a branding company established in 2012. The firm offers Branding and Pay Per Click.Read More
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655Undisclosed50 - 249 employeesSan Luis Obispo, CAEtna Interactive is a San Luis Obispo, California-based Content Marketing company. They offer Content Marketing and Digital Strategy.Read More
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656Undisclosed50 - 249 employeesSan Mateo, CAFounded in 1979, Caccia Plumbing, a midsize SEO agency, is based in San Mateo, California. Their team specializes in Search Engine Optimization and UX/UI Design.Read More
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657$10,000+10 - 49 employeesSan Diego, CARead More
Grow and Convert is a SEO agency established in 2017. The agency focuses on search engine optimization, pay per click, and content marketing and has a small team.
Clients
SmartlookIndustries
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658$5,000+10 - 49 employeesPasadena, CAONE400 is a branding firm headquartered in Pasadena, California and West Hollywood, California. The small team focuses on Branding, Marketing Strategy, Digital Strategy, Content Marketing, and more and was founded in 2014.Read More
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659Undisclosed10 - 49 employeesLos Angeles, CALiveWebMedia is an e-commerce development firm. Located in Los Angeles, California, their small team focuses on E-Commerce Development and Search Engine Optimization. The firm was established in 1998.Read More
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660$1,000+10 - 49 employeesSan Diego, CACaroff Communications is a San Diego, California-based web design agency. Their services include Web Design and Search Engine Optimization.Read More
Industries
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