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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1981Undisclosed2 - 9 employeesRocklin, CAEllington Digital is a social media marketing company. The Rocklin, California-based agency was launched in 2013. Their services include Social Media Marketing and Email Marketing.Read More
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1982Undisclosed2 - 9 employeesLancaster, CAGrind! Media is a branding company. Founded in 2019, the firm is located in Lancaster, California. Their services include Branding and Social Media Marketing.Read More
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1983Undisclosed2 - 9 employeesAlamo, CAEstablished in 2011, HomePage Marketing is a small Email Marketing company based in Alamo, California. Their team specializes in Email Marketing and Search Engine Optimization.Read More
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1984Undisclosed2 - 9 employeesSan Diego, CADesign Venturez is a small social media marketing company located in San Diego, California. Their services include Social Media Marketing and Search Engine Optimization.Read More
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1985Undisclosed2 - 9 employeesLos Angeles, CALaunched in 2009, Battle Bridge Labs is a social media marketing firm. Based in Los Angeles, California and Tulsa, Oklahoma, the team offers Social Media Marketing and Email Marketing.Read More
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1986Undisclosed2 - 9 employeesPaso Robles, CA805 SEO is a SEO company headquartered in Paso Robles, California. The team focuses on Search Engine Optimization and Social Media Marketing.Read More
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1987Undisclosed2 - 9 employeesOrangevale, CABased in Orangevale, California, InfoStar Productions LLC. Is a small social media marketing company. Their services include Social Media Marketing and Search Engine Optimization.Read More
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1988Undisclosed2 - 9 employeesMountain View, CAWK Online Marketing is a social media marketing company. The team is in Mountain View, California, and their services include Social Media Marketing and Content Marketing.Read More
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1989Undisclosed2 - 9 employeesCerritos, CALaunched in 2011, Francesca Nicasio is a branding agency. The small team offers Branding and Marketing Strategy.Read More
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1990Undisclosed2 - 9 employeesMarina del Rey, CASEO agency Digital Ninja 9 is in Miami, Florida and Marina del Rey, California. They offer Search Engine Optimization and Pay Per Click and were established in 1996.Read More
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1991Undisclosed2 - 9 employeesFresno, CAFounded in 2007, NewCast Media Group is a small PPC company. Their services include Pay Per Click and Social Media Marketing.Read More
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1992Undisclosed2 - 9 employeesSanta Monica, CASocial media marketing agency Digital Revenue Media is headquartered in Santa Monica, California. They offer Social Media Marketing and Email Marketing.Read More
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1993Undisclosed2 - 9 employeesLos Angeles, CAInvoketin, Inc. Is a Los Angeles, California-based Email Marketing company. They specialize in Email Marketing and Conversion Optimization.Read More
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1994Undisclosed2 - 9 employeesHuntington Beach, CALaunched in 2006, Swell Marketing Inc. Is a Conversion Optimization company. The team provides Conversion Optimization and Search Engine Optimization and is located in Huntington Beach, California.Read More
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1995Undisclosed2 - 9 employeesTorrance, CAWordPress Superheroes, a web development firm, focuses on Web Development and Search Engine Optimization. The firm is in Torrance, California.Read More
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1996Undisclosed2 - 9 employeesCarlsbad, CASmall Content Marketing company Afflatus Media, is headquartered in Carlsbad, California. Their services include Content Marketing and Search Engine Optimization.Read More
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1997Undisclosed2 - 9 employeesSan Diego, CAWebsites That Elevate with Gina Williams is a small SEO company. Launched in 2020, the team provides Search Engine Optimization and Web Design.Read More
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1998Undisclosed2 - 9 employeesPasadena, CAContent Marketing company Local Finder LLC was launched in 2016. In Pasadena, California, the team specializes in Content Marketing and Search Engine Optimization.Read More
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1999Undisclosed2 - 9 employeesBeverly Hills, CAResume Advisor is a Content Writing Services company. They are located in Beverly Hills, California, and their services include Content Writing Services and Corporate Training & Coaching.Read More
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2000Undisclosed2 - 9 employeesLos Angeles, CALaunched in 2019, Pink Sheep Publicity is a small branding agency. Their team focuses on Branding and Public Relations.Read More
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2001Undisclosed2 - 9 employeesNewport Beach, CANecula Designs is a small social media marketing firm established in 2018. Their team specializes in Social Media Marketing and Email Marketing.Read More
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2002Undisclosed2 - 9 employeesLos Angeles, CAFaebl Studios is a social media marketing company. The agency is in Los Angeles, California. Their team offers Social Media Marketing and Content Marketing.Read More
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2003Undisclosed2 - 9 employeesLake Forest, CAFroBro Web Technologies is a Lake Forest, California-based SEO company. The team provides Search Engine Optimization and Web Design.Read More
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2004Undisclosed2 - 9 employeesStockton, CAInteract Media Group is an Affiliate Marketing company established in 2022. The team offers Affiliate Marketing and Search Engine Optimization and is based in Stockton, California.Read More
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2005Undisclosed2 - 9 employeesSan Diego, CALocal Value LLC is a small San Diego, California-based social media marketing agency. The team focuses on Social Media Marketing and Email Marketing.Read More
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2006Undisclosed2 - 9 employeesEncinitas, CALocated in Encinitas, California, Method Pro is a Digital Strategy company. Founded in 2018, the team specializes in Digital Strategy and Social Media Marketing.Read More
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2007Undisclosed2 - 9 employeesApplegate, CAReal Connection Media, an Email Marketing company, was established in 2018. The team specializes in Email Marketing and Search Engine Optimization.Read More
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2008Undisclosed2 - 9 employeesSacramento, CARenegade Digital Marketing, a social media marketing company, was launched in 2021. The agency provides Social Media Marketing and Search Engine Optimization.Read More
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2009Undisclosed2 - 9 employeesSan Diego, CARC Creative is a social media marketing agency in San Diego, California and San Diego, California. Founded in 2021, the team specializes in Social Media Marketing and Email Marketing.Read More
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2010Undisclosed2 - 9 employeesSacramento, CAShadow Digital is a Low/No Code Development company. Based in Sacramento, California, the team provides Low/No Code Development and Search Engine Optimization.Read More
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