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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2791UndisclosedFreelancer employeesNevada City, CAContent Writing Services company Wicked Good Copywriting is located in Nevada City, California. Their services include Content Writing Services and Content Marketing.Read More
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2792UndisclosedFreelancer employeesCovina, CAArcher Copywriting is a small Content Writing Services company. Launched in 2005, the team offers Content Writing Services and Content Marketing.Read More
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2793UndisclosedFreelancer employeesLos Angeles, CAUBuild Lenon is a social media marketing firm. The Los Angeles, California-based firm offers Social Media Marketing and Affiliate Marketing.Read More
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2794UndisclosedFreelancer employeesIrvine, CAAspire Catalyst is a social media marketing firm. Established in 2023, the firm offers Social Media Marketing and Content Marketing.Read More
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2795UndisclosedFreelancer employeesFresno, CACS Designs is a small Fresno, California-based social media marketing firm. Their services include Social Media Marketing and Search Engine Optimization.Read More
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2796UndisclosedFreelancer employeesSanta Clarita, CADesignAdict, a social media marketing company, was founded in 2016. They provides Social Media Marketing and Email Marketing.Read More
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2797UndisclosedFreelancer employeesRichmond, CADigitalaxy Media, a SEO company, is located in Richmond, California. Their services include Search Engine Optimization and Pay Per Click.Read More
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2798UndisclosedFreelancer employeesLaguna Beach, CAFastweb.dev, a small web design company, is headquartered in Laguna Beach, California. Their services include Web Design and Web Development.Read More
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2799UndisclosedFreelancer employeesSan Francisco, CASearch Manipulator, a public relations company, is located in San Francisco, California. Their services include Public Relations and Digital Strategy.Read More
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2800UndisclosedFreelancer employeesPalmdale, CASocial media marketing company Suncrest Media is in Palmdale, California. Established in 2015, the team offers Social Media Marketing and Content Marketing.Read More
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2801UndisclosedFreelancer employeesMill Valley, CAWilder Strategy Lab is a social media marketing company. The Mill Valley, California-based firm provides Social Media Marketing and Search Engine Optimization.Read More
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2802Undisclosed10 - 49 employeesOceanside, CAPie Solutions is a branding company founded in 2008. Headquartered in Oceanside, California and Karachi, Pakistan, the team focuses on Branding and Search Engine Optimization.Read More
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2803$1,000+50 - 249 employeesSanta Maria, CACMG Digital is a website development firm headquartered in Pula, Croatia and Zagreb, Croatia. The company offers web development, video production, web design, ux/ui design, and more and has a midsize team.The company was established in 2001.Read More
Clients
P&G, GSK, ConvaTec, Edgewell, Cloetta, Helion, RimacIndustries
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2804Undisclosed10 - 49 employeesSan Jose, CAElevate Digital Services, a web development firm, is located in Dubai, United Arab Emirates and San Jose, California. Their services include Web Development and Mobile App Development.Read More
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2805$10,000+10 - 49 employeesIrvine, CALocated in New York, New York and Irvine, California, Dukas Linden is a PR agency. Launched in 2002, the team provides Public Relations and Social Media Marketing.Read More
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2806Undisclosed2 - 9 employeesIrvine, CABlack Wire Digital is a graphic design agency. They were launched in 2016, and their services include Graphic Design and Web Design.Read More
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2807$5,000+10 - 49 employeesLos Angeles, CAKento Systems is a small Accounting company. Launched in 1990, the team offers Accounting and Branding.Read More
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2808Undisclosed10 - 49 employeesLos Angeles, CAPushMyWeb.com is a graphic design company launched in 2010. Their team offers Graphic Design and Web Design.Read More
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2809Undisclosed10 - 49 employeesTemecula, CALaunched in 2004, DRIVEN360 is a public relations agency. The team offers Public Relations and Branding and is based in Temecula, California.Read More
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2810Undisclosed10 - 49 employeesRiverside, CAConstantMD Inc. Is a social media marketing agency. Established in 2010, their team provides Social Media Marketing and Search Engine Optimization.Read More
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2811Undisclosed10 - 49 employeesHayward, CADynamic Global Links - Hayward is an e-commerce development company. They are in Hayward, California and have small team. Their team provides E-Commerce Development and Mobile App Development.Read More
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2812Undisclosed10 - 49 employeesStockton, CACloudKrest is a cloud consulting & SI company. The agency is located in Stockton, California. Their team provides cloud consulting & SI and unified communications consulting & SI.Read More
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2813Undisclosed10 - 49 employeesSonoma, CABalzac Communications & Marketing is a PR company. Their team is headquartered in Sonoma, California. The agency specializes in Public Relations and Social Media Marketing.Read More
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2814Undisclosed10 - 49 employeesSan Diego, CASofizar is a social media marketing firm. They are headquartered in San Diego, California, and their services include Social Media Marketing and Content Marketing.Read More
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2815Undisclosed50 - 249 employeesEncinitas, CATarget River, an Advertising company, offers Advertising and Sales Outsourcing. The company is in Salt Lake City, Utah and Encinitas, California.Read More
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2816$5,000+2 - 9 employeesTorrance, CAPurpleJACK Technologies is a web design company established in 2012. The team focuses on Web Design and Web Development.Read More
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2817Undisclosed2 - 9 employeesSan Diego, CASmall Content Marketing company Invata Global Marketing™️, is located in San Diego, California and Austin, Texas. The team offers Content Marketing and Graphic Design.Read More
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2818UndisclosedFreelancer employeesAlameda, CASuperclean Web Services is a web design agency founded in 1995. In Alameda, California, the team focuses on Web Design and E-Commerce Development.Read More
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2819UndisclosedFreelancer employeesVentura, CAWilmeth Group is a web design company. The team is in Ventura, California, and their services include Web Design and Web Development.Read More
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2820UndisclosedFreelancer employeesVacaville, CAHess Yes Media is a Vacaville, California-based web design company. They provide Web Design and Branding and were launched in 2019.Read More
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