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.
List of the Best California SEO Firms
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1561Undisclosed2 - 9 employeesRichmond, CAThe Light Digital is a SEO agency based in Richmond, California. Their services include Search Engine Optimization and Social Media Marketing.Read More
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1562$5,000+10 - 49 employeesCulver City, CANoxster is a small SEO services firm headquartered in Culver City, California. The team offers Search Engine Optimization and Web Design.Read More
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1563Undisclosed10 - 49 employeesSan Rafael, CABleu Marketing is a branding firm founded in 2001. The team focuses on Branding and Search Engine Optimization and is located in San Rafael, California.Read More
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1564Undisclosed10 - 49 employeesLos Angeles, CARevolution Media is a media planning & buying company launched in 2001. The agency specializes in Media Planning & Buying and Advertising, and is small.Read More
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1565Undisclosed10 - 49 employeesUpland, CAResource Computer Solutions is a small Upland, California-based IT managed services company. Their services include IT managed services and Cybersecurity.Read More
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1566Undisclosed10 - 49 employeesWalnut Creek, CAPercepticon Corporation is a social media marketing company. Established in 1993, their team offers Social Media Marketing and Search Engine Optimization.Read More
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1567Undisclosed10 - 49 employeesStockton, CADeniro Marketing is an Advertising company. The Stockton, California-based company focuses on Advertising and Search Engine Optimization.Read More
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1568Undisclosed10 - 49 employeesAnaheim, CADental Office Website is a web design company based in Anaheim, California. Their services include Web Design and Search Engine Optimization.Read More
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1569Undisclosed10 - 49 employeesEscondido, CALaunched in 2003, 1st Class Writing is a small Escondido, California-based Content Writing Services company. Their team specializes in Content Writing Services and Content Marketing.Read More
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1570Undisclosed10 - 49 employeesSan Diego, CAStraight Up Growth = Amazon is a PPC agency. Founded in 2019, their team focuses on Pay Per Click and Search Engine Optimization.Read More
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1571Undisclosed10 - 49 employeesWestminster, CASocial Wolves is a web development firm established in 2016. The team focuses on Web Development and Social Media Marketing and is headquartered in Westminster, California.Read More
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1572$1,000+50 - 249 employeesSan Diego, CASOCi, an Advertising company, was launched in 2012. The firm offers Advertising and Social Media Marketing.Read More
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1573Undisclosed50 - 249 employeesUpland, CAInent Inc is a SEO company founded in 2010. The team offers Search Engine Optimization and IT staff augmentation.Read More
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1574Undisclosed50 - 249 employeesRedwood City, CAPierry Inc., A Wunderman Thompson Company, a CRM consulting and SI company, provides CRM consulting and SI and Email Marketing. The agency is based in Redwood City, California.Read More
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1575Undisclosed50 - 249 employeesFremont, CARead More
EZdia Inc. Is an artificial intelligence development company in Fremont, California. The midsize team offers Artificial Intelligence, content marketing, e-commerce development, and search engine optimization. The company was launched in 2010.
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1576Undisclosed50 - 249 employeesRoseville, CAKukui Corporation is an Advertising company. The agency is based in Roseville, California. Their services include Advertising and Conversion Optimization.Read More
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1577Undisclosed50 - 249 employeesMurrieta, CAProSites is a social media marketing firm. Launched in 2003, the company is located in Murrieta, California. Their services include Social Media Marketing and Search Engine Optimization.Read More
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1578Undisclosed50 - 249 employeesRoseville, CABlastX Consulting is a SEO services firm. The Roseville, California-based company was launched in 1999. Their team specializes in Search Engine Optimization and UX/UI Design.Read More
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1579UndisclosedFreelancer employeesOakland, CAPaul Andre is a SEO company. They focus on Search Engine Optimization and Pay Per Click and were launched in 2023. The firm is located in Oakland, California.Read More
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1580$5,000+10 - 49 employeesLos Angeles, CALaunched in 2017, Equinox Dynamics LDA is a SEO agency. They are in Esgueira, Portugal; Chicago, Illinois; New York, New York and Los Angeles, California and have a small team. The company offers Search Engine Optimization.Read More
Clients
MySpace Happenventures Petaljet MelroseIndustries
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1581$10,000+10 - 49 employeesLos Angeles, CAFounded in 2018, FluidRank is an e-commerce development firm. Their services include E-Commerce Development and Web Design.Read More
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1582$1,000+10 - 49 employeesLos Angeles, CAGrowwwise is a SEO services firm launched in 2018. Their small team is headquartered in Mamaia-Sat, Romania; New York, New York; London, England and Castelló de la Plana, Spain. Their services include Search Engine Optimization and Pay Per Click.Read More
Clients
Re.VISAGEIndustries
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1583$5,000+10 - 49 employeesJurupa Valley, CAFounded in 2021, Movya is a web development company. The small team offers Web Development, Application Testing, AI Agents, UX/UI Design, and more. The company is based in Ahmedabad, India and Jurupa Valley, California.Read More
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1584$1,000+2 - 9 employeesAlhambra, CASEO services firm Sparksbox was launched in 2014. The small team offers search engine optimization, pay per click, and web development. The agency is located in Alhambra, California.Read More
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1585Undisclosed50 - 249 employeesSan Francisco, CARead More
Racepoint Global is a digital marketing and PR agency headquartered in Boston, MA with 9 offices scattered throughout the United States, China, and the United Kingdom. Founded in 2003, Racepoint Global is a large firm with around 420 employees and often works with international corporations. Most of their services are centered around traditional and online PR placement, but Racepoint also offers content marketing, social media marketing, and more.
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HuaweiIndustries
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1586$1,000+2 - 9 employeesSanta Ana, CASEO agency SEO Experts is headquartered in Santa Ana, California. Their services include Search Engine Optimization and Social Media Marketing.Read More
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1587Undisclosed10 - 49 employeesFullerton, CASmall SEO services firm Sariya IT, is in Gazipur, Bangladesh; Portland, Oregon; Fullerton, California and Dallas, Texas. They focus on Search Engine Optimization, Pay Per Click, Web Development, Graphic Design, and more and were founded in 2015.Read More
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1588$1,000+Freelancer employeesSan Diego, CASEO company San Diego SEO Agency was launched in 2026. The firm focuses on Search Engine Optimization.Read More
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1589$5,000+2 - 9 employeesLos Angeles, CARead More
Digital Stairway is a mobile application development company. Launched in 2015, the firm is located in Austin, Texas and Los Angeles, California. The small team provides mobile app development, pay per click, search engine optimization, social media marketing, and more.
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1590$5,000+250 - 999 employeesSan Diego, CAInternet Marketing Inc. Is a SEO company located in San Diego, California and Las Vegas, Nevada. Their services include Search Engine Optimization and Advertising.Read More
Industries
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