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
-
631$1,000+10 - 49 employeesLos Angeles, CARead More
Kobe Digital is a programmatic marketing agency based in Los Angeles. It was founded in 2016 and currently has a team of 10 employees. Kobe Digital provides PPC, web design, and SEO services.
Clients
Penske Media CorporationIndustries
-
632$1,000+10 - 49 employeesLos Angeles, CAContractor Gorilla is a Los Angeles, California-based web design company. They focus on Web Design and Social Media Marketing and were founded in 2008.Read More
Industries
-
633$10,000+10 - 49 employeesMountain View, CAE-commerce development firm Rank Up Locally was established in 2020. The small team specializes in E-Commerce Development and Search Engine Optimization.Read More
Industries
-
634$1,000+10 - 49 employeesAlameda, CARankPivot is a SEO services firm. The team is located in Alameda, California and Gainesville, Florida, and their services include Search Engine Optimization and Digital Strategy.Read More
Industries
-
635$5,000+250 - 999 employeesLos Angeles, CAUSA Book Promoters is a social media marketing firm established in 2016. In Los Angeles, California, the team specializes in Social Media Marketing and Content Marketing.Read More
Industries
-
636Undisclosed10 - 49 employeesTopanga, CAWebsite development company How Creative was launched in 1987. The team offers Web Development and Business Consulting and is in Topanga, California and Topanga, California.Read More
Industries
-
637Undisclosed2 - 9 employeesWalnut Creek, CAFour15 Digital is a pay per click company. The company is headquartered in Walnut Creek, California. Their services include Pay Per Click and Search Engine Optimization.Read More
-
638$5,000+10 - 49 employeesSan Marino, CAIllumina Creative, a SEO agency, is headquartered in San Marino, California. The team offers Search Engine Optimization and Web Design.Read More
Industries
-
639$5,000+50 - 249 employeesNewark, CAWebsite Developer LLC is a Content Marketing company. They are in Newark, California. Their team provides Content Marketing and Search Engine Optimization.Read More
-
640$5,000+10 - 49 employeesSan Francisco, CAJordan Digital Marketing is a SEO agency. Founded in 2017, the team provides Search Engine Optimization and Pay Per Click.Read More
Clients
Sentry SpyCloud Markforged TrueCarIndustries
-
641$1,000+2 - 9 employeesIrvine, CAVulcan Media Group is a PPC agency. Their small team is in Irvine, California. Their services include Pay Per Click and Search Engine Optimization.Read More
Industries
-
642$5,000+10 - 49 employeesNewcastle, CASEO company Decrypt SEO is headquartered in Newcastle, California. The team provides Search Engine Optimization and Advertising.Read More
-
643Undisclosed10 - 49 employeesSan Francisco, CASEO Gremlin is a SEO agency. Their small team of employees is in San Francisco, California. Their team focuses on Search Engine Optimization and Branding.Read More
-
644Undisclosed10 - 49 employeesLos Angeles, CAEstablished in 2025, TechTribeMag is a small SEO agency in Los Angeles, California. Their team specializes in Search Engine Optimization and Content Marketing.Read More
-
645Undisclosed2 - 9 employeesLancaster, CASEO Done Right is a SEO company. Their small team of employees is based in Lancaster, California. Their team provides Search Engine Optimization.Read More
-
646Undisclosed50 - 249 employeesSan Diego, CAZ57, Inc. Is a SEO services firm. The San Diego, California-based company provides Search Engine Optimization.Read More
-
647Undisclosed10 - 49 employeesDaly City, CALaunched in 2010, eZ-Xpo is a small SEO company. Their services include Search Engine Optimization.Read More
-
648Undisclosed2 - 9 employeesSan Diego, CA#1 SEO is a SEO company. They were established in 2012, and their services include Search Engine Optimization.Read More
Industries
-
649Undisclosed2 - 9 employeesSan Diego, CAAffordable SEO is a San Diego, California-based SEO services firm. Their services include Search Engine Optimization.Read More
-
650Undisclosed2 - 9 employeesLos Angeles, CASEO For Local is a SEO company established in 2014. Their services include Search Engine Optimization.Read More
Industries
-
651Undisclosed10 - 49 employeesIrvine, CABudgetSEO is a SEO company. Their team is located in Richmond, Australia and Irvine, California and focuses on Search Engine Optimization.Read More
-
652Undisclosed10 - 49 employeesLos Angeles, CAGetmilk is a SEO agency based in New York, New York and Chicago, Illinois. Their services include Search Engine Optimization.Read More
-
653Undisclosed250 - 999 employeesSan Mateo, CABrightEdge is a SEO company. Launched in 2007, the firm is in San Mateo, California. Their team provides Search Engine Optimization and Content Marketing.Read More
-
654Undisclosed2 - 9 employeesLos Angeles, CASmall Business SEO Company is a SEO agency established in 2021. Headquartered in Los Angeles, California, the team specializes in Search Engine Optimization.Read More
-
655Undisclosed2 - 9 employeesRiverside, CAModern Comfort and Air, a SEO agency, focus on Search Engine Optimization. They were founded in 2023.Read More
-
656$1,000+10 - 49 employeesSan Francisco, CARyze AI is a San Francisco, California-based PPC company. They focus on Pay Per Click and Search Engine Optimization and were founded in 2025.Read More
Industries
-
657$25,000+10 - 49 employeesLos Angeles, CASEO services firm 4D Marketing & Business Solutions Firm World-wide Hosting was founded in 2007. The small team focuses on Search Engine Optimization and Email Marketing.Read More
-
658$5,000+10 - 49 employeesLos Angeles, CADigital Delane is a website development firm located in Los Angeles, California. They provide Web Development and Branding.Read More
Clients
Higher Education Entertainment Industry Travel Industry CPGIndustries
-
659$1,000+50 - 249 employeesSan Diego, CARead More
Creative Design Crew is a midsize logo company. They specialize in logo, web design, social media marketing, search engine optimization, and more and were founded in 2010. The agency is located in San Diego, California.
Industries
-
660$75,000+50 - 249 employeesWalnut Creek, CAMira Commerce, an e-commerce development company, was founded in 2004. Their midsize team is in Walnut Creek, California; Santa Fe de la Vera Cruz, Argentina and Warszawa, Poland. Their services include E-Commerce Development, Search Engine Optimization, UX/UI Design, and Web Development.Read More
Clients
DESTACOIndustries
Featured provider
Get connected with a company for free
Tell us about your project, and we'll match you with vetted companies that meet your requirements.
Get connected with the right company for you
We'll do the work for you – finding and connecting you with service providers that meet your exact requirements.
Schedule ConsultationMost Reviewed SEO Company in California
Check out a SEO Company in California with the most new reviews in the past 12 months.
Most Reviewed
SEO Company
California
- 11 10 new reviews
- 12 10 new reviews
- 13 10 new reviews
- 14 10 new reviews
- 15 9 new reviews
