Top 100 SEO Companies in California
The Best of April 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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$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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2551Undisclosed10 - 49 employeesWalnut Creek, CAIT managed services company The Wizards of OZtechs was founded in 2001. In Walnut Creek, California, the team provides IT managed services and IT strategy consulting.Read More
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2552Undisclosed10 - 49 employeesIrvine, CAHooray Agency is an Advertising company founded in 1993. The firm provides Advertising and Branding, and is small.Read More
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2553Undisclosed10 - 49 employeesLos Angeles, CACO/LAB CA is an email marketing company in Canoga Park, California. The small team offers email marketing, pay per click, search engine optimization, social media marketing, and more and was founded in 2012.Read More
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2554Undisclosed10 - 49 employeesLos Angeles, CAImagine IT Web Design & SEO is a Los Angeles, California-based e-commerce development firm. The team offers E-Commerce Development and Search Engine Optimization.Read More
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2555Undisclosed10 - 49 employeesLos Angeles, CAEfficient Marketing Solution is an e-commerce development firm. Their small team is located in Los Angeles, California. Their team focuses on E-Commerce Development and Search Engine Optimization.Read More
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2556Undisclosed10 - 49 employeesClovis, CAJIT Outsource, a web design company, offer Web Design and Web Development. They were launched in 1995.Read More
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2557Undisclosed10 - 49 employeesCosta Mesa, CACapisco Marketing is a graphic design agency. Launched in 2012, the agency offers Graphic Design and Pay Per Click.Read More
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2558Undisclosed10 - 49 employeesGarden Grove, CAWeb SoCal, Inc. Is a small e-commerce development firm. Established in 2010, the team provides E-Commerce Development and Pay Per Click.Read More
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2559Undisclosed10 - 49 employeesCosta Mesa, CAOpen Interactive Inc. Is a SEO company. The firm is in Costa Mesa, California. Their team provides Search Engine Optimization and Social Media Marketing.Read More
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2560Undisclosed10 - 49 employeesModesto, CASiteJockey is a Modesto, California-based web design company. Established in 2002, the team focuses on Web Design and Web Development.Read More
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2561Undisclosed10 - 49 employeesUpland, CACulture Cube Marketing is a social media marketing company founded in 2013. The small team focuses on Social Media Marketing and Email Marketing.Read More
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2562Undisclosed10 - 49 employeesPasadena, CALocated in Pasadena, California, Cybertegic is a small Email Marketing company. Their services include Email Marketing and Search Engine Optimization.Read More
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2563Undisclosed10 - 49 employeesLos Angeles, CAEstablished in 2012, E Design Services is a SEO services firm. Based in Los Angeles, California, the team offers Search Engine Optimization and Pay Per Click.Read More
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2564Undisclosed10 - 49 employeesSanta Rosa, CASleepless Digital is a small branding agency. Launched in 2000, the team specializes in Branding and Search Engine Optimization.Read More
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2565Undisclosed10 - 49 employeesSanta Rosa, CAProvaro Marketing is a PR firm founded in 2009. The team focuses on Public Relations and Search Engine Optimization and is located in Santa Rosa, California.Read More
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2566Undisclosed10 - 49 employeesSan Francisco, CAButtered Toast, a Market Research company, is located in San Francisco, California. Established in 2016, the team provides Market Research and Marketing Strategy.Read More
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2567Undisclosed10 - 49 employeesLaguna Hills, CANeilson Marketing Services, an Email Marketing company, is headquartered in Laguna Hills, California. Their services include Email Marketing and Search Engine Optimization.Read More
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2568Undisclosed10 - 49 employeesSan Bernardino, CASK America is a small San Bernardino, California-based Email Marketing company. The team offers Email Marketing and Search Engine Optimization.Read More
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2569$5,000+50 - 249 employeesSan Diego, CAApplication development firm Qodestar was established in 2022. They are based in Seattle, Washington; Nashville, Tennessee; New York, New York and Tampa, Florida and have a midsize team. Their services include Mobile App Development, UX/UI Design, Mobile & App Marketing, Product Design, and more.Read More
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2570$5,000+2 - 9 employeesMadera, CAJC Marketing is an Advertising company. They are located in Madera, California and Brazil. Their team offers Advertising and Branding.Read More
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2571$5,000+2 - 9 employeesSan Jose, CALocated in San Jose, California and Chandigarh, India, Frisco Web Solutions is a small SEO agency. Their services include Search Engine Optimization and Web Design.Read More
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2572$1,000+10 - 49 employeesSanta Clara, CAMEDIA REACH, Inc. Is a SEO company and Generative AI company. They provide Search Engine Optimization and Generative AI and were launched in 2021. The firm is in Osaka, Japan and Shibuya, Japan.Read More
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2573$5,000+10 - 49 employeesSan Francisco, CAFounded in 2010, Rapid Boost is a Conversion Optimization company. The firm offers Conversion Optimization and Digital Strategy.Read More
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2574$5,000+Freelancer employeesSan Diego, CABlueOcean SEO Agency is a small San Diego, California-based Digital Strategy company. Their services include Digital Strategy and Search Engine Optimization.Read More
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2575UndisclosedFreelancer employeesAlameda, CAOn24web, a web design agency, specializes in Web Design and Search Engine Optimization. The firm is based in Alameda, California.Read More
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2576UndisclosedFreelancer employeesWalnut Creek, CACadydid Social Marketing is a SEO services firm founded in 2018. The small team focuses on Search Engine Optimization and Social Media Marketing.Read More
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2577Undisclosed50 - 249 employeesSan Francisco, CAGenetsis Group is a San Francisco, California-based Marketing Strategy company. The team offers Marketing Strategy and ECM consulting and SI.Read More
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2578$5,000+10 - 49 employeesMilpitas, CAZonic Digital Inc. Is a web design company. Based in Milpitas, California and Vadodara, India, the company focuses on Web Design and Web Development.Read More
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2579$1,000+10 - 49 employeesNovato, CAVarchas IT Systems pvt Ltd is a web design agency. The small Faridabad, India-based team specializes in Web Design and Digital Strategy. The firm was launched in 2014.Read More
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2580$1,000+2 - 9 employeesLos Angeles, CAConnectedMarkets is a SEO company. The company is based in Los Angeles, California. Their services include Search Engine Optimization and Pay Per Click.Read More
Industries
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