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.
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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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451$5,000+10 - 49 employeesCalabasas, CASmart Street Media is a SEO agency. Based in Calabasas, California and Las Vegas, Nevada, the firm was founded in 2013. Their services include Search Engine Optimization and Pay Per Click.Read More
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452$1,000+2 - 9 employeesMission Viejo, CAXentina Digital Group is a SEO company. Their small team is based in Mission Viejo, California and specializes in Search Engine Optimization and Web Design. The firm was launched in 2004.Read More
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453$1,000+2 - 9 employeesLos Angeles, CAInternetize.Me, a custom software development company, is in Los Angeles, California. They specialize in Custom Software Development and IT strategy consulting.Read More
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454Undisclosed2 - 9 employeesSan Diego, CALocal Spark Marketing is a SEO company launched in 2017. The team focuses on Search Engine Optimization and Web Design and is located in San Diego, California.Read More
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455$5,000+2 - 9 employeesYucaipa, CAHuely inc. Is a SEO company established in 2015. In Yucaipa, California, the team offers Search Engine Optimization and Web Design.Read More
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456$1,000+10 - 49 employeesIrvine, CAStratosphere is a small SEO company founded in 2012. Their team focuses on Search Engine Optimization and Web Design.Read More
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Fuller Insurance AgencyIndustries
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457$1,000+2 - 9 employeesSanta Maria, CALaunched in 2013, RP3 Productions is a small video production company. Their services include Video Production and Social Media Marketing.Read More
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Toyota Santa Maria Toyota Lompoc Toyota San Luis Obispo Kia Santa Maria -
458$1,000+250 - 999 employeesSan Diego, CALocated in Colorado Springs, Colorado; San Diego, California; Farmington, Arizona and Columbia, Missouri, Intero Digital is a SEO services firm. Established in 1996, the midsize team specializes in Search Engine Optimization, Pay Per Click, Digital Strategy, Social Media Marketing, and more.Read More
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Mizuno Gaiam Jaguar ArcadiaIndustries
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459$1,000+2 - 9 employeesThousand Oaks, CALittle Opus, LLC is a SEO company launched in 2000. The firm specializes in Search Engine Optimization and Social Media Marketing.Read More
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460$5,000+10 - 49 employeesGlendale, CAEstablished in 1998, Submit Express, a small SEO agency, is located in Glendale, California. Their services include Search Engine Optimization and Content Marketing.Read More
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461$1,000+50 - 249 employeesSan Diego, CASEO services firm Einstein Medical was established in 1995. The team offers Search Engine Optimization and Web Development.Read More
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462$1,000+250 - 999 employeesLaguna Beach, CATeam4eCom is a SEO agency. Their midsize team is in Laguna Beach, California and focuses on Search Engine Optimization, Pay Per Click, Content Marketing, Ecommerce Marketing, and more. The agency was launched in 1999.Read More
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463$5,000+2 - 9 employeesLos Angeles, CALaunched in 2013, Epikta LLC is an Advertising company. Their team provides Advertising and Branding.Read More
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464$1,000+50 - 249 employeesSan Diego, CADigital Authority Partners is a Chicago, Illinois-based SEO company. They provide Search Engine Optimization, Marketing Strategy, and Pay Per Click and were launched in 2016.Read More
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Omron HealthcareIndustries
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465$5,000+2 - 9 employeesSacramento, CALaunched in 2009, Get on the Map is a social media marketing agency and SEO agency. The team focuses on Social Media Marketing and Search Engine Optimization and is based in Sacramento, California.Read More
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466$1,000+2 - 9 employeesMonterey, CAHeadquartered in Monterey, California, PlayBig Digital is a Marketing Strategy company. Launched in 2010, the team offers Marketing Strategy and Search Engine Optimization.Read More
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467Undisclosed50 - 249 employeesOak Park, CAWordpressIntegration, an user experience agency, was launched in 2004. They offers UX/UI Design and E-Commerce Development.Read More
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468$5,000+10 - 49 employeesPlacerville, CASEO services firm NUBRAND was launched in 2008. The team provides Search Engine Optimization and Pay Per Click.Read More
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469$1,000+10 - 49 employeesOroville, CASEO agency and web design agency SEO Web was launched in 2016. The team focuses on Search Engine Optimization and Web Design.Read More
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470$1,000+10 - 49 employeesLos Angeles, CASmart SEO People is a SEO company. The team provides Search Engine Optimization and Web Development, and the firm is based in Los Angeles, California.Read More
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471$1,000+10 - 49 employeesSan Diego, CARead More
ClickCallSell, a business consulting company, is located in San Diego, California. Founded in 2018, the small team specializes in business consulting, web development, pay per click, and web design.
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472$1,000+2 - 9 employeesPleasanton, CAGolden Gate SEO is a SEO services firm based in Pleasanton, California and. The team focuses on Search Engine Optimization and Social Media Marketing.Read More
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473$1,000+2 - 9 employeesHuntington Beach, CADigital Papercuts is a SEO services firm. In Huntington Beach, California, their team provides Search Engine Optimization and Pay Per Click.Read More
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474$5,000+10 - 49 employeesSan Jose, CAAppCode Technologies is a website development firm in Faridabad, India and San Jose, California. Founded in 2016, the team focuses on Web Development and Mobile App Development.Read More
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475Undisclosed250 - 999 employeesEl Segundo, CAAgent Image is a Digital Strategy company. They were launched in 1999, and their services include Digital Strategy and Social Media Marketing.Read More
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476$1,000+10 - 49 employeesLos Angeles, CARead More
PR agency The Confluence was established in 2009. Their small team is in Los Angeles, California and offers public relations, branding, search engine optimization, content marketing, and more.
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477$1,000+2 - 9 employeesCampbell, CASacha Agency, a SEO company, focuses on Search Engine Optimization and Marketing Strategy. The company is based in Campbell, California.Read More
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478Undisclosed2 - 9 employeesMoraga, CASEO company and PPC agency SEOzone was launched in 2011. The firm offers Search Engine Optimization and Pay Per Click.Read More
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479$1,000+2 - 9 employeesRoseville, CAJCT Growth is a SEO company located in Roseville, California. Established in 2019, the team offers Search Engine Optimization and Content Marketing.Read More
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480$5,000+50 - 249 employeesLos Angeles, CASearch Marketing Experts, a SEO company, focus on Search Engine Optimization and Pay Per Click. They were established in 2005.Read More
Industries
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