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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871$1,000+2 - 9 employeesRichmond, CAAngelsmith is an Advertising company. They focus on Advertising and Social Media Marketing and were founded in 2001.Read More
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872$5,000+2 - 9 employeesRiverside, CAACU Web is a social media marketing firm. Founded in 2005, the agency provides Social Media Marketing and Search Engine Optimization.Read More
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873$5,000+10 - 49 employeesSan Diego, CACampaign Creators is a SEO services firm. The San Diego, California-based team focuses on Search Engine Optimization and Web Design.Read More
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874$5,000+250 - 999 employeesSan Ramon, CAHeadquartered in San Ramon, California and Reading , England, Synverse is an Accounting company. They specialize in Accounting and Advertising.Read More
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875$1,000+250 - 999 employeesLaguna Beach, CAData4eCom is an Ecommerce Marketing company headquartered in Laguna Beach, California. Their services include Ecommerce Marketing and Pay Per Click.Read More
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876Undisclosed10 - 49 employeesLong Beach, CAThe Clay Media is a website development firm launched in 2011. Their services include Web Development and Content Marketing.Read More
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877$1,000+2 - 9 employeesPasadena, CAHolistic SEO Company is a small Digital Strategy company based in Pasadena, California. The team provides Digital Strategy and Pay Per Click.Read More
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878Undisclosed2 - 9 employeesSacramento, CABranding agency Emerge Marketing Strategies is in Sacramento, California. The team provides Branding and Marketing Strategy.Read More
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879Undisclosed2 - 9 employeesSan Diego, CAPolar Mass is a small San Diego, California-based SEO services firm. Their services include Search Engine Optimization and Pay Per Click.Read More
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880$250,000+2 - 9 employeesSan Francisco, CADigital Marketing Whiz is a small Content Marketing company based in Miami, Florida and New York, New York. Their services include Content Marketing and Other Digital Marketing.Read More
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881$10,000+2 - 9 employeesYucaipa, CASequoiaCX, a web design company, is headquartered in Yucaipa, California. They offer Web Design and Search Engine Optimization and were established in 2020.Read More
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882$1,000+2 - 9 employeesMidway City, CALocated in Midway City, California, We Dream In Pixels is a Digital Strategy company. The team offers Digital Strategy and Search Engine Optimization.Read More
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883$1,000+2 - 9 employeesLaguna Beach, CANazzal Brothers, Inc., a branding firm, was established in 2019. They offers Branding and Social Media Marketing.Read More
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884$5,000+2 - 9 employeesLos Angeles, CAUp Inc. ECommerce Agency is a Digital Strategy company. Founded in 2015, the company is in Los Angeles, California. Their team provides Digital Strategy and Content Marketing.Read More
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885$1,000+2 - 9 employeesSan Diego, CAXprez Marketing, a SEO company, offer Search Engine Optimization and Pay Per Click. They were founded in 2023.Read More
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886$1,000+2 - 9 employeesLong Beach, CABareBones Media LLC is a small SEO company launched in 2024. Their services include Search Engine Optimization and Web Design.Read More
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887$10,000+10 - 49 employeesAuburn, CACustom software development firm Specter is in Auburn, California. The company focuses on custom software development, search engine optimization, web development, digital strategy, and more and is small.The company was launched in 2015.Read More
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888$1,000+10 - 49 employeesClovis, CAKemet Publishing & Media Inc, a pay per click agency, was founded in 2020. Their small team is headquartered in Clovis, California and offers pay per click, social media marketing, digital strategy, conversion optimization, and more.Read More
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889$10,000+50 - 249 employeesLos Angeles, CAAmerican Web Development is a social media marketing company launched in 2017. Their midsize team is headquartered in Los Angeles, California. The agency specializes in Social Media Marketing, Content Marketing, Search Engine Optimization, Web Design, and more.Read More
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890$50,000+50 - 249 employeesLos Angeles, CAROYALSEOANDSEM, a midsize PPC agency, is in Los Angeles, California and. The team offers Pay Per Click and Digital Strategy.Read More
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891Undisclosed50 - 249 employeesBeverly Hills, CAXenMD is a social media marketing firm. In Beverly Hills, California, the company provides Social Media Marketing and Search Engine Optimization.Read More
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892$1,000+50 - 249 employeesElk Grove, CAPublishmybook is an Advertising company. The team is based in Elk Grove, California, and their services include Advertising and Content Marketing.Read More
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893Undisclosed2 - 9 employeesSan Marcos, CASEO Evolution Search Engine Optimization Agency Consulting is a small San Marcos, California-based SEO services firm. Their services include Search Engine Optimization and Web Design.Read More
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894Undisclosed2 - 9 employeesRiverside, CABlue Wolf Interactive, a small SEO company, is in Riverside, California. The team focuses on Search Engine Optimization and Pay Per Click.Read More
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895Undisclosed10 - 49 employeesSan Diego, CASEO agency Pop Locate focuses on Search Engine Optimization and Web Design. They were founded in 2021.Read More
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896Undisclosed50 - 249 employeesBrea, CAPennySaver USA is a midsize SEO agency. Launched in 1962, the team specializes in Search Engine Optimization and Print Design.Read More
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897Undisclosed50 - 249 employeesIrvine, CAStrategic SEO Solutions is a public relations firm and SEO agency. Established in 2021, the team provides Public Relations and Search Engine Optimization. The agency is in Irvine, California.Read More
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898Undisclosed50 - 249 employeesAnaheim, CAStrategy Interactive is an Anaheim, California-based Content Marketing and SEO company. The team provides Content Marketing and Search Engine Optimization.Read More
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899$5,000+10 - 49 employeesRocklin, CALOJO Marketing is an e-commerce development firm. Based in Rocklin, California, the team specializes in E-Commerce Development and Web Design.Read More
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900$5,000+2 - 9 employeesPleasanton, CABased in Pleasanton, California, Terzetto Digital is an Advertising company. They offer Advertising and Digital Strategy and were founded in 1995.Read More
Industries
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