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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481$1,000+10 - 49 employeesLos Angeles, CAMedia One Group LLC is a mobile app development company based in Los Angeles, California and Antrim, Northern Ireland. The team provides Mobile App Development and Marketing Strategy.Read More
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482$5,000+10 - 49 employeesSanta Monica, CAMake It Rain is a SEO services firm. In Santa Monica, California, the agency was established in 2012. Their services include Search Engine Optimization and Content Marketing.Read More
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483$5,000+10 - 49 employeesSolana Beach, CACuker is a Solana Beach, California-based UX company. Launched in 2006, the team provides UX/UI Design and Digital Strategy.Read More
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GoMacroIndustries
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484$5,000+10 - 49 employeesSan Francisco, CALaunched in 1999, D E E P B L U E is a small web design agency. Their services include Web Design and Web Development.Read More
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485$1,000+10 - 49 employeesLos Angeles, CARead More
Web Designs Prime is an user experience design company. Their small team is located in Los Angeles, California and provides ux/ui design, branding, search engine optimization, web design, and more. The firm was established in 2015.
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486$1,000+10 - 49 employeesSanta Monica, CAFounded in 2013, NewDeez is a content marketing company. Their small team is located in Santa Monica, California. Their services include content marketing, search engine optimization, web design, ux/ui design, and more.Read More
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487$1,000+2 - 9 employeesCosta Mesa, CAGoldero, a SEO services firm, is located in Costa Mesa, California and. They focus on Search Engine Optimization and Web Design and were established in 2014.Read More
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488$1,000+2 - 9 employeesFremont, CAFounded in 2019, Go Flippa is a SEO agency. The team provides Search Engine Optimization and Conversion Optimization and is headquartered in Fremont, California.Read More
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489Undisclosed2 - 9 employeesNapa, CADiffuse Digital Marketing is a SEO agency in Napa, California. Established in 2018, the team provides Search Engine Optimization and Social Media Marketing.Read More
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490$1,000+2 - 9 employeesLaguna Beach, CARazwerks is a SEO services firm. The team focuses on Search Engine Optimization and Pay Per Click, and the company is headquartered in Laguna Beach, California.Read More
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491$1,000+2 - 9 employeesSanta Monica, CAPrism Design Co is a SEO services firm. The Santa Monica, California-based agency was launched in 2018. Their team focuses on Search Engine Optimization and Web Design.Read More
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492$1,000+2 - 9 employeesSan Diego, CAVizolutions is a SEO company. Their team is in San Diego, California. The company offers Search Engine Optimization and Advertising.Read More
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493$1,000+10 - 49 employeesLos Angeles, CARead More
Established in 2007, Guru Web Media is a small web design agency. Their team provides web design, branding, search engine optimization, pay per click, and more. The agency is based in Los Angeles, California.
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494$1,000+2 - 9 employeesTemecula, CAPublic Advertising Agency, a web design company, was established in 2004. The company offers Web Design and Branding, and is small.Read More
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495$5,000+2 - 9 employeesBurbank, CAMK Group is a SEO services firm. Launched in 2020, the team specializes in Search Engine Optimization and Content Marketing. The firm is based in Burbank, California.Read More
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496$5,000+2 - 9 employeesSan Diego, CACounterflow Marketing is an Advertising company. The team specializes in Advertising and Search Engine Optimization and is in San Diego, California.Read More
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497Undisclosed50 - 249 employeesCarlsbad, CALaunched in 2002, L7 Advertising is a midsize SEO agency. Their team offers Search Engine Optimization and Pay Per Click.Read More
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498$1,000+2 - 9 employeesOrange, CASEO Company OC is a PPC company. Based in Orange, California, the company was established in 2004. Their services include Pay Per Click and Conversion Optimization.Read More
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499$1,000+50 - 249 employeesSan Jose, CAApp Wave INC is a web development firm. Founded in 2020, the team specializes in Web Development and Mobile App Development. The company is headquartered in San Jose, California.Read More
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500Undisclosed10 - 49 employeesTustin, CAFounded in 1993, Echo Media Group, a small UX agency, is located in Tustin, California. Their team offers UX/UI Design and Content Marketing.Read More
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501Undisclosed50 - 249 employeesSanta Monica, CASEO Services in California is a SEO agency established in 2018. They are based in Santa Monica, California and have a midsize team. Their services include Search Engine Optimization, Pay Per Click, Content Marketing, and Web Design.Read More
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502$5,000+2 - 9 employeesPleasanton, CASEO company Leads Ngin, Inc. Was launched in 2010. Based in Pleasanton, California, the team offers Search Engine Optimization and Pay Per Click.Read More
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503Undisclosed2 - 9 employeesYorba Linda, CASeyfmark is a SEO services firm. Their small team is headquartered in Yorba Linda, California and specializes in Search Engine Optimization and Pay Per Click. The agency was founded in 2014.Read More
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504$10,000+10 - 49 employeesPlacentia, CAArbitsol LLC is a Placentia, California-based SEO company. The team offers Search Engine Optimization and Web Design.Read More
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505Undisclosed10 - 49 employeesSan Jose, CAEstablished in 2020, San Jose SEO is a SEO services firm. The team offers Search Engine Optimization and Content Marketing and is based in San Jose, California.Read More
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506$1,000+2 - 9 employeesSan Francisco, CAConversion Optimization company Startercode was launched in 2022. The small team provides Conversion Optimization and Search Engine Optimization.Read More
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507$1,000+2 - 9 employeesKingsburg, CAIn Kingsburg, California, JP Solutions, LLC is a web design agency. Founded in 2014, the team offers Web Design and Mobile App Development.Read More
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508Undisclosed2 - 9 employeesEl Cajon, CANomadic Webs is a SEO agency and website development firm. The El Cajon, California-based agency was established in 2023. Their services include Search Engine Optimization and Web Development.Read More
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509$1,000+2 - 9 employeesLos Angeles, CAKreativa Group is a small Miami, Florida-based PPC company. Their services include Pay Per Click and Web Design.Read More
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MonopriceIndustries
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510$5,000+2 - 9 employeesSalinas, CACore6 Marketing, a SEO services firm, was founded in 2007. The team provides Search Engine Optimization and Web Design.Read More
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