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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1711Undisclosed10 - 49 employeesAntioch, CA365 Days On is an IT managed services company launched in 2015. The team provides IT managed services and Web Development and is headquartered in Antioch, California.Read More
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1712Undisclosed10 - 49 employeesPleasant Hill, CAKha Creation USA, a web design agency, is located in Pleasant Hill, California. The team specializes in Web Design and Web Development.Read More
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1713Undisclosed10 - 49 employeesDiscovery Bay, CAConquest Marketing, a small Content Marketing company, is in Discovery Bay, California. Their services include Content Marketing and Email Marketing.Read More
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1714Undisclosed10 - 49 employeesNewport Beach, CADigital EYE Media, a branding agency, is in Newport Beach, California. Founded in 2001, the team offers Branding and Content Marketing.Read More
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1715Undisclosed10 - 49 employeesLos Alamitos, CAInfused Digital, a graphic design company, is in Los Alamitos, California. The team provides Graphic Design and Search Engine Optimization.Read More
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1716Undisclosed10 - 49 employeesNewport Beach, CATypeLab is a small branding agency headquartered in Newport Beach, California. The team offers Branding and Conversion Optimization.Read More
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1717Undisclosed10 - 49 employeesNorwalk, CAPay per click agency Pantera Digital Media was established in 2009. The firm offers Pay Per Click and Search Engine Optimization, and is small.Read More
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1718Undisclosed10 - 49 employeesSeal Beach, CAMy Social Biz is a Content Marketing company. Headquartered in Seal Beach, California, the agency specializes in Content Marketing and Digital Strategy.Read More
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1719Undisclosed10 - 49 employeesNewport Beach, CALancelot Media is a branding firm. The team specializes in Branding and Pay Per Click, and the agency is headquartered in Newport Beach, California.Read More
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1720Undisclosed10 - 49 employeesOrange, CAEverythingOnline LLC is a Conversion Optimization company. Established in 2010, the firm is headquartered in Orange, California. Their services include Conversion Optimization and Pay Per Click.Read More
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1721Undisclosed10 - 49 employeesHacienda Heights, CAChampion Network, an user experience design company, is located in Hacienda Heights, California. They offer UX/UI Design and Search Engine Optimization and were launched in 2000.Read More
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1722$10,000+10 - 49 employeesLos Angeles, CARead More
// TECHYSCOUTS is a conversion optimization company. The Los Angeles, California-based agency was launched in 2012. The small team offers conversion optimization, web design, ux/ui design, web development, and more.
Industries
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1723Undisclosed10 - 49 employeesUpland, CAAdvantage Attorney is a Content Marketing company. The Upland, California-based company offers Content Marketing and Search Engine Optimization.Read More
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1724Undisclosed10 - 49 employeesMarina del Rey, CAAdvertise Naked is an Email Marketing company. Founded in 2019, the company is located in Marina del Rey, California. Their services include Email Marketing and Search Engine Optimization.Read More
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1725Undisclosed10 - 49 employeesLos Angeles, CABlue Wing Ads is a social media marketing agency. The company is based in Los Angeles, California. Their services include Social Media Marketing and Pay Per Click.Read More
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1726Undisclosed10 - 49 employeesSan Francisco, CABased in San Francisco, California, Optimal is a website development firm. Established in 2015, the team focuses on Web Development and Application Testing.Read More
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1727Undisclosed10 - 49 employeesBeverly Hills, CAMedia planning & buying company Admediary LLC was founded in 2013. The company offers Media Planning & Buying and Social Media Marketing.Read More
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1728Undisclosed10 - 49 employeesRohnert Park, CABay Area Digital Solutions, an Advertising company, was launched in 2016. The agency provides Advertising and Social Media Marketing, and is small.Read More
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1729Undisclosed10 - 49 employeesLos Angeles, CAAloola.io is a PPC agency. Established in 2019, the agency is located in Los Angeles, California. Their team focuses on Pay Per Click and Search Engine Optimization.Read More
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1730Undisclosed10 - 49 employeesUnion City, CADigital Halt Technologies is an Union City, California-based social media marketing agency. They provide Social Media Marketing and Email Marketing.Read More
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1731Undisclosed10 - 49 employeesLong Beach, CALaunched in 2020, Upmax Digital Marketing Agency is a small Long Beach, California-based social media marketing firm. Their team specializes in Social Media Marketing and Conversion Optimization.Read More
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1732Undisclosed10 - 49 employeesSanta Monica, CALos Angeles WordPress Development is a web design company. Located in Santa Monica, California, the team focuses on Web Design and Search Engine Optimization.Read More
Industries
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1733Undisclosed10 - 49 employeesIrvine, CALocal SEO Sites is a social media marketing firm. Founded in 2010, the firm is located in Irvine, California. Their team offers Social Media Marketing and Search Engine Optimization.Read More
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1734Undisclosed10 - 49 employeesMission Viejo, CASmall e-commerce development company Your Store Wizards, is based in Mission Viejo, California. Their services include E-Commerce Development and Web Design.Read More
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1735Undisclosed10 - 49 employeesSan Juan Capistrano, CAWeb design agency iSearch By City was founded in 2010. The company focuses on Web Design and Social Media Marketing, and is small.Read More
Industries
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1736Undisclosed10 - 49 employeesPomona, CABigfork SEO is a SEO services firm. Their small team is located in Pomona, California. Their services include Search Engine Optimization and Social Media Marketing.Read More
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1737Undisclosed10 - 49 employeesEl Segundo, CASEO company InterEcho is based in El Segundo, California. They focus on Search Engine Optimization and Video Production and were launched in 2017.Read More
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1738Undisclosed10 - 49 employeesIrvine, CALocated in Irvine, California, eGumball Inc. Is a small SEO services firm. The team focuses on Search Engine Optimization and Print Design.Read More
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1739Undisclosed10 - 49 employeesSan Rafael, CAActive Ingredients is a San Rafael, California-based branding firm. Founded in 2004, the team provides Branding and Social Media Marketing.Read More
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1740Undisclosed10 - 49 employeesSan Clemente, CAPactx, Inc is an Email Marketing company. The San Clemente, California-based firm specializes in Email Marketing and Conversion Optimization.Read More
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