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
-
$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
Industries
-
$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
Industries
-
2701Undisclosed2 - 9 employeesSunnyvale, CAEstablished in 2006, AppLite.com is a SEO company. The agency specializes in Search Engine Optimization and BI & big data consulting & SI, and is small.Read More
Industries
-
2702Undisclosed2 - 9 employeesNewark, CALionshead Digital, Inc is a PPC company. Founded in 2021, their team provides Pay Per Click and Social Media Marketing.Read More
Industries
-
2703Undisclosed2 - 9 employeesPalm Desert, CALocated in Palm Desert, California, Pure Community Systems is a small pay per click company. Their services include Pay Per Click and Social Media Marketing.Read More
Industries
-
2704Undisclosed2 - 9 employeesCorona, CAStebbins Media Inc. Is an Email Marketing company. They are in Corona, California. Their team specializes in Email Marketing and Search Engine Optimization.Read More
Industries
-
2705Undisclosed2 - 9 employeesAliso Viejo, CANett Solutions PPC is a social media marketing company. The Aliso Viejo, California-based team offers Social Media Marketing and Pay Per Click.Read More
Industries
-
2706Undisclosed2 - 9 employeesSanta Monica, CAClick & Clear Communications is a small social media marketing agency based in Santa Monica, California. Their services include Social Media Marketing and Email Marketing.Read More
Industries
-
2707Undisclosed2 - 9 employeesLafayette, CASocial media marketing company Blast My Biz provides Social Media Marketing and Email Marketing. They were established in 2010.Read More
Industries
-
2708Undisclosed2 - 9 employeesHalf Moon Bay, CACoastside Media is a small Advertising company launched in 2017. Their services include Advertising and Search Engine Optimization.Read More
Industries
-
2709Undisclosed2 - 9 employeesOxnard, CAPremium Printing is a small social media marketing agency located in Oxnard, California. Their services include Social Media Marketing and Search Engine Optimization.Read More
-
2710Undisclosed2 - 9 employeesSanta Monica, CAWebRotate 360 LLC is a SEO services firm. The team offers Search Engine Optimization and Pay Per Click, and the firm is in Santa Monica, California.Read More
-
2711$1,000+2 - 9 employeesOceanside, CARead More
Ramp Up Digital, a digital strategy company, is located in Oceanside, California. The small agency was founded in 2024. Their team provides digital strategy, search engine optimization, pay per click, web design, and more.
Industries
-
2712Undisclosed2 - 9 employeesSan Diego, CADigital Vision Agency is a small social media marketing agency based in San Diego, California. The team provides Social Media Marketing and Conversion Optimization.Read More
Industries
-
2713Undisclosed2 - 9 employeesRiverside, CAHeadquartered in Riverside, California, Worthy Marketing is a small social media marketing agency. Their services include Social Media Marketing and Search Engine Optimization.Read More
-
2714Undisclosed2 - 9 employeesIrvine, CAAI SEO Services is a small Content Marketing company based in Irvine, California. Their services include Content Marketing and Search Engine Optimization.Read More
-
2715Undisclosed2 - 9 employeesAgoura Hills, CAWisly Marketing is a small Agoura Hills, California-based Email Marketing company. Their services include Email Marketing and Search Engine Optimization.Read More
-
2716Undisclosed2 - 9 employeesLos Angeles, CASmall SEO agency JVMEDIAWEB, is located in Los Angeles, California. The team specializes in Search Engine Optimization and Video Production.Read More
-
2717Undisclosed2 - 9 employeesSan Diego, CALocated in San Diego, California, Local Dudes Marketing is a small social media marketing firm. Their services include Social Media Marketing and Email Marketing.Read More
-
2718Undisclosed2 - 9 employeesSan Diego, CAYellow Comma LLC is a web design company based in San Diego, California. They focus on Web Design and Web Development and were established in 2021.Read More
-
2719Undisclosed2 - 9 employeesPoway, CARank Harvest is a social media marketing firm. They specialize in Social Media Marketing and Email Marketing and were launched in 2018. The agency is headquartered in Poway, California.Read More
Industries
-
2720Undisclosed2 - 9 employeesLos Angeles, CAHire Highs is a SEO agency. Launched in 2024, the team offers Search Engine Optimization and Social Media Marketing.Read More
Industries
-
2721Undisclosed2 - 9 employeesSan Jose, CALaunched in 2004, ATC Web Solutions is a small web design company in San Jose, California. Their team provides Web Design and Web Development.Read More
-
2722Undisclosed2 - 9 employeesLos Angeles, CAFounded in 2006, Golden State Marketing is a SEO company. Their team focuses on Search Engine Optimization and Branding.Read More
-
2723Undisclosed2 - 9 employeesCosta Mesa, CASocial media marketing firm Making Visions Reality was launched in 2011. Located in Costa Mesa, California, the team specializes in Social Media Marketing and Content Marketing.Read More
-
2724Undisclosed2 - 9 employeesRedondo Beach, CASocial media marketing company Millennial Marketing, LLC. Is located in Redondo Beach, California. Their services include Social Media Marketing and Email Marketing.Read More
-
2725Undisclosed2 - 9 employeesPleasanton, CAIn Pleasanton, California, MLJ Solutions LLC. Is an Email Marketing company. Founded in 2021, the team offers Email Marketing and Search Engine Optimization.Read More
-
2726Undisclosed2 - 9 employeesSanta Barbara, CARanking SB is a Content Marketing company in Santa Barbara, California. Their services include Content Marketing and Email Marketing.Read More
-
2727Undisclosed2 - 9 employeesSan Diego, CAScatena Daniels Communications is a PR firm. The San Diego, California-based agency offers Public Relations and Media Planning & Buying.Read More
-
2728Undisclosed2 - 9 employeesLaguna Niguel, CAAdvertising company Semtrak Inc. Was established in 2007. The agency focuses on Advertising and Content Marketing, and is small.Read More
-
2729Undisclosed2 - 9 employeesCarlsbad, CATW2 Marketing, Inc. Is a PR agency based in Carlsbad, California. Their services include Public Relations and Social Media Marketing.Read More
-
2730$5,000+10 - 49 employeesSan Francisco, CABoomtrain is an Advertising company. Their team is based in San Francisco, California and Bengaluru, India. The company provides Advertising and Branding.Read More
Industries
Featured providers
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 12 new reviews
- 12 11 new reviews
- 13 11 new reviews
- 14 10 new reviews
- 15 9 new reviews
