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
Industries
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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
Industries
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1981Undisclosed2 - 9 employeesClovis, CACityline Websites is a graphic design agency located in Clovis, California. Their services include Graphic Design and Search Engine Optimization.Read More
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1982Undisclosed2 - 9 employeesBakersfield, CAGinomai Creative is a graphic design company in Bakersfield, California. Their services include Graphic Design and Logo.Read More
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1983Undisclosed2 - 9 employeesSan Juan Bautista, CAHeadquartered in San Juan Bautista, California, Webstrim Design Group is an e-commerce development company. They provide E-Commerce Development and Email Marketing and were founded in 2004.Read More
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1984Undisclosed2 - 9 employeesLos Angeles, CAUX design company HammockWeb is based in Los Angeles, California. They provide UX/UI Design and E-Commerce Development.Read More
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1985Undisclosed2 - 9 employeesRedondo Beach, CAByer Co is a Redondo Beach, California-based branding agency. The team focuses on Branding and Search Engine Optimization.Read More
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1986Undisclosed2 - 9 employeesFountain Valley, CAFounded in 2012, Addictive Marketing Group is a small Fountain Valley, California-based Mobile & App Marketing company. Their team specializes in Mobile & App Marketing and Pay Per Click.Read More
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1987Undisclosed2 - 9 employeesIrvine, CAInk Refuge is a web design agency launched in 2008. The agency focuses on Web Design and Branding.Read More
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1988Undisclosed2 - 9 employeesCerritos, CAG2CPartners is a Content Marketing company located in Cerritos, California. They focus on Content Marketing and Pay Per Click.Read More
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1989Undisclosed2 - 9 employeesIrvine, CAPacific Internet Consulting Group, a Mobile & App Marketing company, was established in 2004. The team focuses on Mobile & App Marketing and Pay Per Click.Read More
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1990Undisclosed2 - 9 employeesSanta Ana, CAIn Santa Ana, California, Revho Ad Agency is a branding firm. Founded in 2014, the team specializes in Branding and Search Engine Optimization.Read More
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1991Undisclosed2 - 9 employeesHacienda Heights, CADigital Xchange Media is a branding agency headquartered in Hacienda Heights, California. Their services include Branding and Digital Strategy.Read More
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1992Undisclosed2 - 9 employeesSanta Ana, CASynergy Digital is a small Email Marketing company in Santa Ana, California. The team specializes in Email Marketing and Pay Per Click.Read More
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1993Undisclosed2 - 9 employeesManhattan Beach, CA#Hashtag Digital Media Marketing Agency is a branding agency. Their small team of employees is in Manhattan Beach, California. Their team focuses on Branding and Content Marketing.Read More
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1994Undisclosed2 - 9 employeesSanta Ana, CADigital Media Landing is a branding firm. They were launched in 2016 and focus on Branding and Content Marketing.Read More
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1995Undisclosed2 - 9 employeesLa Habra, CAAd Relate Media, a Content Marketing company, was established in 2015. The agency provides Content Marketing and Mobile & App Marketing, and is small.Read More
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1996Undisclosed2 - 9 employeesSanta Ana, CALet’s Bee Social Digital Marketing is a branding firm. The Santa Ana, California-based company was launched in 2016. Their team offers Branding and Content Marketing.Read More
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1997Undisclosed2 - 9 employeesLos Alamitos, CAOmnibeat is a small branding firm. They focus on Branding and Email Marketing and were established in 2011.Read More
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1998Undisclosed2 - 9 employeesFullerton, CAKnockout Web Media Marketing is an Email Marketing company. Their team is based in Fullerton, California and specializes in Email Marketing and Pay Per Click.Read More
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1999Undisclosed2 - 9 employeesCathedral City, CAEstablished in 2007, Rakunn Designs is a small Advertising company headquartered in Cathedral City, California. Their team offers Advertising and Graphic Design.Read More
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2000Undisclosed2 - 9 employeesFullerton, CAChrysalis Web Development is a graphic design agency. In Fullerton, California, the agency was established in 2012. Their services include Graphic Design and Mobile & App Marketing.Read More
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2001Undisclosed2 - 9 employeesLa Palma, CAThe Web Scientists is a small Back Office Outsourcing company based in La Palma, California. The team offers Back Office Outsourcing and Search Engine Optimization.Read More
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2002Undisclosed2 - 9 employeesIrvine, CAH4 Marketing is a Content Marketing company based in Irvine, California. Their services include Content Marketing and Pay Per Click.Read More
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2003Undisclosed2 - 9 employeesOrange, CARaining Fire Interactive is a small Orange, California-based SEO services firm. The team specializes in Search Engine Optimization and Social Media Marketing.Read More
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2004Undisclosed2 - 9 employeesAnaheim, CAHilux Marketing Consultants, a small pay per click agency, is headquartered in Anaheim, California. The team specializes in Pay Per Click and Search Engine Optimization.Read More
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2005Undisclosed2 - 9 employeesBerkeley, CAPR firm McColl Communications was founded in 1989. In Berkeley, California, the team focuses on Public Relations and Media Planning & Buying.Read More
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2006Undisclosed2 - 9 employeesWatsonville, CALaunched in 2008, Contractor Advertising is an Email Marketing company. Their services include Email Marketing and Marketing Strategy.Read More
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2007Undisclosed2 - 9 employeesSan Bernardino, CAAcuMedia Corporation is a branding firm in San Bernardino, California. Established in 2005, the team offers Branding and Email Marketing.Read More
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2008Undisclosed2 - 9 employeesSan Bernardino, CAAdvertising company FreeAgent Media is based in San Bernardino, California. The team specializes in Advertising and Graphic Design.Read More
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2009Undisclosed2 - 9 employeesSan Bernardino, CAHeadquartered in San Bernardino, California, Insight Media is an Advertising company. They specialize in Advertising and AR/VR development and were established in 2013.Read More
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2010Undisclosed2 - 9 employeesSan Juan Capistrano, CAContent Marketing company Surge is headquartered in San Juan Capistrano, California. The team focuses on Content Marketing and Search Engine Optimization.Read More
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