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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1021$1,000+50 - 249 employeesCampbell, CACreative Logo Agency is a Logo company. The firm is located in Campbell, California. Their team provides Logo and Social Media Marketing.Read More
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1022$10,000+50 - 249 employeesCovina, CAData Annotation Services company INFOTANKS MEDIA is based in Covina, California. They provide Data Annotation Services and Digital Strategy.Read More
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1023$1,000+10 - 49 employeesLos Angeles, CABased in Los Angeles, California, Social Influence is a small PPC company. Their services include Pay Per Click and Social Media Marketing.Read More
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1024$1,000+10 - 49 employeesAuburn, CANeural Experience (NX) is a Marketing Strategy company launched in 2019. The company specializes in Marketing Strategy and Search Engine Optimization, and is small.Read More
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1025$1,000+10 - 49 employeesLos Angeles, CALevel Up 360 Inc is a small Los Angeles, California-based SEO agency. The team focuses on Search Engine Optimization and Pay Per Click.Read More
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1026$1,000+2 - 9 employeesSanta Ana, CAROC Studios is a video production agency. Founded in 2016, the firm is in Santa Ana, California. Their team specializes in Video Production and Social Media Marketing.Read More
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1027Undisclosed2 - 9 employeesLos Angeles, CAGeneration Marketing, a Digital Strategy company, was established in 2018. The team offers Digital Strategy and Marketing Strategy.Read More
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1028$5,000+2 - 9 employeesLos Angeles, CABlacksmith Digital is a Digital Strategy company. The team provides Digital Strategy and Conversion Optimization, and the agency is headquartered in Los Angeles, California.Read More
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1029$1,000+2 - 9 employeesLos Angeles, CABarragan Media is a web development company. Their team is located in Los Angeles, California and Ensenada, Mexico and focuses on Web Development and Web Design.Read More
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1030$10,000+10 - 49 employeesIrvine, CATRAFFIK is a website development company. They offer Web Development and Search Engine Optimization and were launched in 2000.Read More
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1031$5,000+10 - 49 employeesGlendale, CAStudio III Marketing is a Digital Strategy company. The small Glendale, California-based team offers Digital Strategy and Advertising. The firm was established in 2011.Read More
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1032$1,000+10 - 49 employeesSanta Monica, CAHarmonica is a Content Marketing company. The team focuses on Content Marketing and Public Relations, and the firm is based in Santa Monica, California.Read More
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1033$5,000+10 - 49 employeesThousand Oaks, CASmall Advertising company Ad Leverage, is located in Thousand Oaks, California. Their services include Advertising and Pay Per Click.Read More
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1034$5,000+10 - 49 employeesBeverly Hills, CABranding agency Stauffer offers Branding and Web Design. They are in Beverly Hills, California.Read More
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1035Undisclosed10 - 49 employeesFolsom, CALEADconcept, a software development company, is located in Lahore, United Arab Emirates and Folsom, California. They focus on Custom Software Development and Graphic Design and were launched in 2003.Read More
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1036Undisclosed10 - 49 employeesSan Ramon, CACP Communications is a web design agency. They were established in 1982 and focus on Web Design and Web Development.Read More
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1037$1,000+10 - 49 employeesCamarillo, CASocial Spice Media is a social media marketing firm. The small Camarillo, California-based team provides Social Media Marketing and Web Design. The agency was launched in 2014.Read More
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1038Undisclosed10 - 49 employeesLos Angeles, CALaunched in 2010, CO/LAB Marketing is a small branding agency. Their services include Branding and Marketing Strategy.Read More
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1039$5,000+2 - 9 employeesSan Jose, CAConure Media is an Advertising company founded in 2011. The company provides Advertising and Branding, and is small.Read More
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1040$1,000+2 - 9 employeesSan Juan Capistrano, CAWeb IT Pros is a small San Juan Capistrano, California-based SEO agency. The team provides Search Engine Optimization and Advertising.Read More
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1041$1,000+2 - 9 employeesSan Dimas, CAUmbrella Digital Marketing is a Digital Strategy company. Their team is based in San Dimas, California and focuses on Digital Strategy and Email Marketing.Read More
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1042$1,000+2 - 9 employeesLos Angeles, CADigital Concept Marketing is a small Los Angeles, California-based branding firm. The team offers Branding and Digital Strategy.Read More
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1043Undisclosed2 - 9 employeesSan Diego, CAEstablished in 2023, De Novo Digital is a small SEO agency. Their team focuses on Search Engine Optimization and Pay Per Click.Read More
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1044$1,000+2 - 9 employeesSan Francisco, CABased in San Francisco, California, Commerce Media Studio is an Ecommerce Marketing company. They provide Ecommerce Marketing and Search Engine Optimization.Read More
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1045$1,000+2 - 9 employeesLos Angeles, CANytwork,Inc., a SEO company, was established in 2021. They provides Search Engine Optimization and Cybersecurity.Read More
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1046$1,000+2 - 9 employeesCosta Mesa, CALocated in Costa Mesa, California, GDM Creators is a branding firm. The team focuses on Branding and Social Media Marketing.Read More
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1047$1,000+2 - 9 employeesLos Angeles, CAMountain Tech is a Direct Marketing company founded in 2021. The small team provides Direct Marketing and Social Media Marketing.Read More
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1048$1,000+2 - 9 employeesStevenson Ranch, CAG6 Interactive is a small social media marketing agency in Stevenson Ranch, California. The team focuses on Social Media Marketing and Search Engine Optimization.Read More
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1049$1,000+2 - 9 employeesSan Diego, CABoost Web Results, a SEO company, was established in 2023. The agency focuses on Search Engine Optimization and Pay Per Click.Read More
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1050$1,000+2 - 9 employeesSunnyvale, CADevelop Bd is a branding agency located in Sunnyvale, California. The team offers Branding and Social Media Marketing.Read More
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