Top 100 SEO Companies in California
The Best of September 2026Looking 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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2251$1,000+Freelancer employeesVallejo, CALamb Consulting - Small Biz Marketing is an Advertising company headquartered in Vallejo, California. The team focuses on Advertising and Graphic Design.Read More
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2252$1,000+Freelancer employeesSan Diego, CAGibbard Web Design is a website development firm. Established in 2006, the firm is located in San Diego, California. Their team provides Web Development and Branding.Read More
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2253$1,000+Freelancer employeesSacramento, CACity of Trees Tech is a Sacramento, California-based software development company. Launched in 2019, the team specializes in Custom Software Development and Web Design.Read More
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2254$1,000+2 - 9 employeesSan Jose, CAMagnate Marketing Agency is a small San Jose, California-based Advertising company. The team specializes in Advertising and Branding.Read More
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2255$10,000+2 - 9 employeesSan Francisco, CASmall Marketing Strategy company Spice Marketing, is headquartered in San Francisco, California. Their services include Marketing Strategy and Branding.Read More
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2256Undisclosed2 - 9 employeesSacramento, CADream Digital Team is an AI Agents company. The small Sacramento, California-based team specializes in AI Agents and AI Consulting. The firm was launched in 2025.Read More
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2257Undisclosed2 - 9 employeesSan Francisco, CAExecutive Intelligence is an AI Consulting company. Their small team is in San Francisco, California and provides AI Consulting and Artificial Intelligence. The company was established in 2026.Read More
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2258$1,000+2 - 9 employeesSacramento, CAElluminateHER is a Marketing Strategy company. Headquartered in Sacramento, California, the company focuses on Marketing Strategy and Digital Strategy.Read More
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2259$1,000+2 - 9 employeesSan Mateo, CAMagpie Child Care Digital Marketing, a Digital Strategy company, is headquartered in San Mateo, California. Their services include Digital Strategy and Marketing Strategy.Read More
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2260Undisclosed2 - 9 employeesSacramento, CASitePeek is a Conversion Optimization company established in 2026. The agency offers Conversion Optimization and Search Engine Optimization, and is small.Read More
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2261Undisclosed2 - 9 employeesSan Diego, CATop Shelf Systems, a small Digital Strategy company, is in San Diego, California. The team offers Digital Strategy and Performance Marketing.Read More
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2262UndisclosedFreelancer employeesFremont, CAContent Marketing company Freelancer was established in 2022. The firm specializes in Content Marketing and Search Engine Optimization, and is small.Read More
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2263UndisclosedFreelancer employeesRiverbank, CAWebdul, a web design company, is in Riverbank, California. The team provides Web Design and Web Development.Read More
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2264UndisclosedFreelancer employeesIrvine, CAFounded in 2023, Metis Digital is a small SEO agency. Their team offers Search Engine Optimization and Social Media Marketing.Read More
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2265UndisclosedFreelancer employeesLos Angeles, CALos Angeles Web Designs, a small web design agency, is in Los Angeles, California. Their services include Web Design and Search Engine Optimization.Read More
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2266$25,000+Freelancer employeesWest Hollywood, CAGothic Moon Creative Studio LLC is a SEO agency. The agency is headquartered in West Hollywood, California. Their team specializes in Search Engine Optimization and Web Design.Read More
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2267UndisclosedFreelancer employeesSan Diego, CABest Sandiego Web Design Company, a social media marketing company, was established in 2024. The company focuses on Social Media Marketing and Search Engine Optimization.Read More
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2268$1,000+Freelancer employeesGardena, CA10xDev is a SEO services firm. Established in 2025, the agency focuses on Search Engine Optimization and Web Design.Read More
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2269$1,000+Freelancer employeesSan Francisco, CAClaire Bough Content Marketing, a small Content Marketing company, is headquartered in San Francisco, California. The team offers Content Marketing and Marketing Strategy.Read More
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2270Undisclosed50 - 249 employeesNewport Beach, CAMilan CM is a Funding & Investment company. Launched in 2025, the team focuses on Funding & Investment and Direct Marketing. The company is in Newport Beach, California.Read More
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2271$1,000+Freelancer employeesEl Dorado Hills, CADigital Presence Co is a web design agency. Founded in 2026, the team offers Web Design and Search Engine Optimization. The agency is based in El Dorado Hills, California.Read More
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2272$1,000+Freelancer employeesLos Angeles, CARanqwell is a SEO company. Launched in 2026, the company offers Search Engine Optimization and Conversion Optimization.Read More
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2273UndisclosedFreelancer employeesSanta Monica, CAAI-FTW is a website development company launched in 2024. The small team specializes in Web Development and Search Engine Optimization.Read More
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2274$1,000+Freelancer employeesLaguna Niguel, CAClayboicardi Studio is a web design company launched in 2026. The company offers Web Design and Web Development.Read More
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2275$1,000+50 - 249 employeesSan Francisco, CALaunched in 2013, Alsett Advertising & Printing is an Advertising company. Headquartered in Las Vegas, Nevada and Las Vegas, Nevada, the team offers Advertising and Market Research.Read More
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2276$100,000+250 - 999 employeesOakland, CALQ Digital, a SEO services firm, offer Search Engine Optimization and Social Media Marketing. They were established in 2006.Read More
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2277$5,000+2 - 9 employeesSan Diego, CAEstablished in 1987, Visual Asylum is an Advertising company. The firm focuses on Advertising and Branding.Read More
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2278$5,000+2 - 9 employeesSan Jose, CAIn San Jose, California, WEBDOGS is an e-commerce development firm. The team specializes in E-Commerce Development and Digital Strategy.Read More
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2279Undisclosed2 - 9 employeesBeverly Hills, CASilicon Beach SEO is a Business Consulting and SEO company. In Beverly Hills, California, the team focuses on Business Consulting and Search Engine Optimization.Read More
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2280Undisclosed2 - 9 employeesSacramento, CATech-Line Consulting is a Content Marketing company. Headquartered in Sacramento, California, their team offers Content Marketing and Email Marketing.Read More
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