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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1381$5,000+2 - 9 employeesLos Angeles, CALA Local SEO is a SEO agency. The small Los Angeles, California-based team focuses on Search Engine Optimization and Social Media Marketing. The agency was founded in 2015.Read More
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1382$5,000+2 - 9 employeesLos Angeles, CAInside Market Strategy is a SEO services firm established in 2014. The team specializes in Search Engine Optimization and Content Marketing.Read More
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1383$5,000+2 - 9 employeesLong Beach, CAFounded in 1998, Pavenet Internet Services is a small Long Beach, California-based SEO services firm. Their services include Search Engine Optimization and Web Design.Read More
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1384Undisclosed2 - 9 employeesMadera, CASMDS is a SEO company. In Madera, California, their team offers Search Engine Optimization and Web Design.Read More
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1385Undisclosed2 - 9 employeesLake Forest, CATrendy Mobile Designs is a SEO agency. Launched in 2015, the team offers Search Engine Optimization and Content Marketing. The agency is based in Lake Forest, California.Read More
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1386Undisclosed2 - 9 employeesVacaville, CACastles Information Network is a web design company. Founded in 1999, the team specializes in Web Design and Search Engine Optimization. The company is headquartered in Vacaville, California.Read More
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1387Undisclosed2 - 9 employeesLancaster, CASpiralmode Design Studio is a SEO company founded in 1999. In Lancaster, California, the team provides Search Engine Optimization and Social Media Marketing.Read More
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1388Undisclosed2 - 9 employeesWest Hollywood, CAAffiliate Marketing company Huge Ape Media was founded in 2005. The company offers Affiliate Marketing and Search Engine Optimization.Read More
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1389Undisclosed2 - 9 employeesLong Beach, CAIn Long Beach, California, Digital Profusion is a SEO company. The team focuses on Search Engine Optimization and Mobile & App Marketing.Read More
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1390Undisclosed2 - 9 employeesYorba Linda, CALocal Magnetic Marketing is a SEO services firm. Their small team of employees is located in Yorba Linda, California. Their team offers Search Engine Optimization and Content Marketing.Read More
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1391Undisclosed2 - 9 employeesHuntington Beach, CAOrange County Marketing Experts, a SEO company, was founded in 2013. The small team provides Search Engine Optimization and Social Media Marketing.Read More
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1392Undisclosed2 - 9 employeesSanta Clarita, CASolid Search Marketing, Inc. Is a pay per click agency. The team focuses on Pay Per Click and Search Engine Optimization and is based in Santa Clarita, California.Read More
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1393Undisclosed2 - 9 employeesSanta Barbara, CALocal SEO Launch is a SEO agency. Founded in 2017, the agency specializes in Search Engine Optimization and Web Design.Read More
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1394Undisclosed2 - 9 employeesTampa, FLHotel SEO Services is a SEO agency. They are headquartered in Tampa, Florida and Las Vegas, Nevada. Their team provides Search Engine Optimization and Content Marketing.Read More
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1395Undisclosed2 - 9 employeesOjai, CATribal Core is a SEO agency. Located in Ojai, California, the team focuses on Search Engine Optimization and Digital Strategy.Read More
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1396Undisclosed2 - 9 employeesIrvine, CACalifornia SEO Company is a SEO company. The Irvine, California-based team provides Search Engine Optimization and Social Media Marketing.Read More
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1397Undisclosed2 - 9 employeesBellflower, CASoCal Digital Agency, a small SEO company, is in Bellflower, California. The team provides Search Engine Optimization and Content Marketing.Read More
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1398$1,000+2 - 9 employeesLos Angeles, CASEO Zila Marketing Agency, a SEO services firm, offer Search Engine Optimization. They were founded in 2016.Read More
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1399Undisclosed10 - 49 employeesVentura, CARead More
Event marketing & planning company Vonazon is in Ventura, California. The small team offers event marketing & planning, graphic design, search engine optimization, social media marketing, and more and was founded in 2005.
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1400$10,000+2 - 9 employeesLos Angeles, CASEO Expert Patrick is a SEO agency. They specialize in Search Engine Optimization and are headquartered in Los Angeles, California.Read More
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1401Undisclosed2 - 9 employeesIrvine, CASEO services firm Irvine SEO Consulting was launched in 2010. Headquartered in Irvine, California, the team offers Search Engine Optimization.Read More
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1402Undisclosed2 - 9 employeesSanta Clara, CADavincci.Tactics is an Ilorin, Nigeria-based SEO company. The small company was established in 2022. Their team provides search engine optimization, pay per click, web design, web development, and more.Read More
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1403$1,000+10 - 49 employeesSimi Valley, CABruce Clay India is a SEO services firm. Based in Gurgaon, India and Simi Valley, California, their small team offers Search Engine Optimization and Pay Per Click. The firm was established in 2009.Read More
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1404$1,000+2 - 9 employeesSan Francisco, CAHeadquartered in San Francisco, California, Got.Media is a SEO agency. They focus on Search Engine Optimization.Read More
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1405Undisclosed10 - 49 employeesWest Hollywood, CARead More
Velvet Media & Marketing is a Los Angeles-based agency that services small to mid-sized businesses. Founded in 2015, their team of 5–6 employees takes a full-service approach to marketing. They offer web design, branding, social media management, and SEO, among other marketing strategies.
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1406Undisclosed50 - 249 employeesPalo Alto, CAWeb design company Airfleet is in Palo Alto, California and Kefar Sava, Israel. They specialize in Web Design and Web Development.Read More
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1407Undisclosed2 - 9 employeesSacramento, CAOutrankify SEO is a SEO agency. They are headquartered in Sacramento, California and have small team. Their team focuses on Search Engine Optimization and Digital Strategy.Read More
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1408$5,000+Freelancer employeesHayward, CARead More
FlashPointLabs is a content marketing company established in 2010. The company offers content marketing, advertising, print design, graphic design, and more and has a small team.
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1409$1,000+50 - 249 employeesRiyadh, Saudi ArabiaMidsize social media marketing agency First Growth Agency, is based in Dubai, United Arab Emirates and Riyadh, Saudi Arabia. Their services include Social Media Marketing and Email Marketing.Read More
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1410$1,000+10 - 49 employeesMission Viejo, CAEstablished in 2017, Anclaren is a SEO services firm. Their team specializes in Search Engine Optimization and Social Media Marketing.Read More
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Check out a SEO Company in California with the most new reviews in the past 12 months.
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