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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901$1,000+2 - 9 employeesLos Angeles, CAFounded in 2018, SEO MarkLead Co is a small SEO company. Their services include Search Engine Optimization and Web Development.Read More
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902$1,000+2 - 9 employeesSan Francisco, CAIBooost, a web design company, is located in San Francisco, California. They specialize in Web Design and Social Media Marketing and were established in 2020.Read More
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903$1,000+2 - 9 employeesSan Rafael, CAStoned Root Cannabis Marketing is a small Content Marketing company located in San Rafael, California. Their services include Content Marketing and Search Engine Optimization.Read More
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904$1,000+2 - 9 employeesIrvine, CACalServ Marketing, a SEO agency, was founded in 2022. The small team offers Search Engine Optimization and Pay Per Click.Read More
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905$5,000+2 - 9 employeesMartinez, CAEstablished in 2017, Craftsmanship Marketing is a SEO agency. The firm focuses on Search Engine Optimization and Pay Per Click, and is small.Read More
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906$1,000+2 - 9 employeesEscondido, CASmall Business Marketing Solutions is a SEO services firm. Headquartered in Escondido, California, the agency was founded in 2020. Their team provides Search Engine Optimization and Content Marketing.Read More
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907$1,000+2 - 9 employeesPasadena, CAFounded in 2020, Pasadena SEO Company - Digital Marketing Solutions is a SEO agency. The company provides Search Engine Optimization and Social Media Marketing.Read More
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908Undisclosed2 - 9 employeesOntario, CAMoxie Creative Solutions, a branding firm, is based in Ontario, California. Founded in 2018, the team provides Branding and Social Media Marketing.Read More
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909$1,000+10 - 49 employeesSan Diego, CAFounded in 2020, GALR Marketing is an Other Digital Marketing company. The small team offers Other Digital Marketing and UX/UI Design.Read More
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910Undisclosed10 - 49 employeesWalnut, CACorporality Global is a branding firm. They are located in Walnut, California and have small team. Their team specializes in Branding and Marketing Strategy.Read More
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911Undisclosed10 - 49 employeesStanton, CAKoalify is a SEO agency. Their small team is headquartered in Stanton, California and Lahore, Pakistan. Their services include search engine optimization, pay per click, social media marketing, content marketing, and more. The company was established in 2022.Read More
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912$100,000+50 - 249 employeesSanta Monica, CAWordSuccor Ltd. Is an user experience company. Their team is located in Santa Monica, California. The company specializes in UX/UI Design and E-Commerce Development.Read More
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913$5,000+50 - 249 employeesSan Diego, CACG Life is a branding company. Their midsize team is based in Chicago, Illinois and San Diego, California. Their services include Branding and Public Relations.Read More
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914Undisclosed2 - 9 employeesSan Diego, CALaunched in 2019, Forefront Advertising is a small SEO company based in San Diego, California. Their team provides Search Engine Optimization and Digital Strategy.Read More
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915$1,000+2 - 9 employeesHuntington Beach, CAPinnacle Web Agency is a small web design company located in Huntington Beach, California. Their services include Web Design and Web Development.Read More
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916Undisclosed2 - 9 employeesSimi Valley, CADevTable, a web design company, was established in 2023. The team specializes in Web Design and Web Development.Read More
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917$10,000+10 - 49 employeesSan Francisco, CAFirebrand Communications is a Content Marketing company. Their team is based in San Francisco, California and offers Content Marketing and Public Relations.Read More
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918$5,000+10 - 49 employeesIrvine, CA1EZ Creative Web Design Orange County CA is a web design company. They specialize in Web Design and Branding and were founded in 1998.Read More
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919$1,000+2 - 9 employeesWillits, CAMetropolis Digital is a small PPC company established in 2019. Their team offers Pay Per Click and Social Media Marketing.Read More
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920Undisclosed250 - 999 employeesLake Forest, CAResource Extension Inc. Is a Back Office Outsourcing company founded in 2011. The midsize team focuses on Back Office Outsourcing and Customer Service Outsourcing.Read More
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921$1,000+10 - 49 employeesPalo Alto, CAFounded in 2000, Sell Online Make Money is an Advertising company. The agency specializes in Advertising and Branding.Read More
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922$1,000+50 - 249 employeesLos Angeles, CAProficient Web Designs, a Digital Strategy company, is in Los Angeles, California. They focus on Digital Strategy and Mobile & App Marketing.Read More
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923$1,000+50 - 249 employeesSan Diego, CAIn San Diego, California, NET SNIPERS MEDIA is a midsize SEO agency. Their services include Search Engine Optimization and Pay Per Click.Read More
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924$10,000+2 - 9 employeesSan Francisco, CARead More
Located in San Francisco, California, Prompt Digital is an UX design company. The small firm was launched in 2023. Their services include UX/UI Design, Web Development, Branding, Web Design, and more.
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925$1,000+10 - 49 employeesLos Angeles, CASpike Ideas is a SEO agency. Their small team is headquartered in Los Angeles, California. Their team focuses on Search Engine Optimization and Social Media Marketing.Read More
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926$1,000+10 - 49 employeesLong Beach, CAThe Amazon Xperts is a Long Beach, California-based Digital Strategy company. They provide Digital Strategy and Search Engine Optimization and were launched in 2021.Read More
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927$5,000+50 - 249 employeesWest Hollywood, CABrightHaus is a branding company. Their midsize team is located in West Hollywood, California and San Diego, California. Their services include Branding and Social Media Marketing.Read More
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928$5,000+50 - 249 employeesMonrovia, CABased in Monrovia, California, Salted Stone is a Digital Strategy company. Their services include Digital Strategy and Web Design.Read More
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929$1,000+50 - 249 employeesLake Forest, CAIncredible Marketing is an user experience agency. They are in Lake Forest, California and Las Vegas, Nevada and have midsize team. Their team focuses on UX/UI Design and Content Marketing.Read More
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930Undisclosed50 - 249 employeesEl Segundo, CAConsumerTrack, Inc., an Advertising company, was launched in 2004. The team offers Advertising and Branding and is based in El Segundo, California and Charlotte, North Carolina.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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