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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1291$5,000+50 - 249 employeesFremont, CALogo Design Sharks is an Other Marketing company based in Fremont, California and Fremont, California. They focus on Other Marketing and Branding.Read More
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1292$1,000+50 - 249 employeesLos Angeles, CABook Writing League is a branding agency. Founded in 2022, the company is in Los Angeles, California. Their team provides Branding and Content Marketing.Read More
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1293$1,000+50 - 249 employeesSanta Fe Springs, CAWebgenixs, a Content Marketing company, was founded in 2018. The agency offers Content Marketing and Search Engine Optimization.Read More
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1294$1,000+50 - 249 employeesLos Angeles, CAMidsize branding agency Website Affinity, is in Los Angeles, California. Their services include Branding and Marketing Strategy.Read More
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1295Undisclosed50 - 249 employeesBakersfield, CABook Publish Pro, a pay per click agency, is located in Bakersfield, California. The team focuses on Pay Per Click and Print Design.Read More
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1296Undisclosed50 - 249 employeesLos Angeles, CAContent Writing Services company Dubu Publishers is in Los Angeles, California and Los Angeles, California. Founded in 2009, the team provides Content Writing Services and Branding.Read More
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1297$10,000+50 - 249 employeesBerkeley, CASEO company First Page Sage was founded in 2009. The team provides Search Engine Optimization and Content Marketing.Read More
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1298$1,000+2 - 9 employeesSouth Pasadena, CABlac Flag is a Business Consulting company. They were founded in 2022 and provide Business Consulting and Social Media Marketing.Read More
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1299$5,000+2 - 9 employeesTorrance, CARockin Technology is a SEO agency. The team focuses on Search Engine Optimization and Pay Per Click, and the firm is based in Torrance, California.Read More
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1300Undisclosed2 - 9 employeesSan Francisco, CACarefree Computing is a SEO company and web design company. Their small team is headquartered in San Francisco, California. Their team focuses on Search Engine Optimization and Web Design.Read More
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1301Undisclosed2 - 9 employeesRedlands, CAVenntov, an e-commerce development firm and SEO company, is headquartered in Redlands, California. Established in 2010, the team specializes in E-Commerce Development and Search Engine Optimization.Read More
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1302Undisclosed2 - 9 employeesCalabasas, CAChina DR Solutions Inc is a small pay per click agency and SEO company located in Calabasas, California. Their services include Pay Per Click and Search Engine Optimization.Read More
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1303Undisclosed2 - 9 employeesSan Ramon, CACaskie Web Solutions LLC is a SEO services firm and web design company. They are in San Ramon, California and and have small team. They provide Search Engine Optimization and Web Design.Read More
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1304Undisclosed2 - 9 employeesRoseville, CAServicersWeb is a small Marketing Strategy and SEO services firm in Roseville, California. Their services include Marketing Strategy and Search Engine Optimization.Read More
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1305Undisclosed2 - 9 employeesAnaheim, CAModern Site Studio, a SEO services firm, was founded in 2007. The team specializes in Search Engine Optimization and Logo and is headquartered in Anaheim, California.Read More
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1306Undisclosed2 - 9 employeesIrvine, CABased in Irvine, California, YoYoFuMedia is a small pay per click agency and SEO company. The team offers Pay Per Click and Search Engine Optimization.Read More
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1307Undisclosed2 - 9 employeesLa Habra, CAHire a Geek is a SEO agency. They provide Search Engine Optimization and Web Design and were founded in 2000.Read More
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1308Undisclosed2 - 9 employeesLos Alamitos, CALaunched in 2009, Three Palms Media is a SEO agency. Their team specializes in Search Engine Optimization and Social Media Marketing.Read More
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1309Undisclosed2 - 9 employeesLos Angeles, CASEO Agency Los Angeles CA, a SEO company, is headquartered in Los Angeles, California. The team specializes in Search Engine Optimization and Content Writing Services.Read More
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1310Undisclosed2 - 9 employeesSan Francisco, CATroiqa Media, a Content Marketing company, was founded in 2017. The agency provides Content Marketing and Search Engine Optimization, and is small.Read More
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1311$1,000+2 - 9 employeesIrvine, CAJoyzen Media is an Email Marketing company in Irvine, California. Their services include Email Marketing and Social Media Marketing.Read More
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1312$1,000+10 - 49 employeesPasadena, CALogo Anchor is a Pasadena, California-based Digital Strategy company. The team provides Digital Strategy and Social Media Marketing.Read More
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1313$1,000+10 - 49 employeesSan Francisco, CAContent Strategies Pro is a Content Marketing company. They are in San Francisco, California, and their services include Content Marketing and Digital Strategy.Read More
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1314$1,000+10 - 49 employeesRichmond, CARc Digital Agency is a branding agency. They focus on Branding and Social Media Marketing and were established in 2022.Read More
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1315$1,000+10 - 49 employeesSacramento, CAFounded in 2015, Alpha MadDog is a Digital Strategy company. The team provides Digital Strategy and Social Media Marketing.Read More
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1316$1,000+10 - 49 employeesSan Francisco, CAENDIGITA - Performance Agency is a PPC agency. The firm is based in San Francisco, California and İstanbul, Türkiye. Their team provides Pay Per Click and Conversion Optimization.Read More
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1317Undisclosed10 - 49 employeesSan Jose, CALaunched in 2020, Western Web Studios is a small social media marketing agency. Their team specializes in Social Media Marketing and Search Engine Optimization.Read More
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1318$10,000+10 - 49 employeesLos Angeles, CASepoy is an e-commerce development firm. Based in Los Angeles, California, their team specializes in E-Commerce Development and Digital Strategy.Read More
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1319$1,000+10 - 49 employeesAnaheim, CAAnaeim SEO is a branding agency located in Anaheim, California. Their services include Branding and Social Media Marketing.Read More
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1320$1,000+10 - 49 employeesRancho Cucamonga, CAGENIUSBOTS is a Cybersecurity company. Established in 2023, the team offers Cybersecurity and Content Marketing. The agency is headquartered in Rancho Cucamonga, California.Read More
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