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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1111$5,000+2 - 9 employeesIrvine, CALocated in Irvine, California and , Jub Jub Interactive is a small Digital Strategy company. The team offers Digital Strategy and Social Media Marketing.Read More
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1112$5,000+2 - 9 employeesFresno, CAButler Branding is a Marketing Strategy company launched in 2012. The small team focuses on Marketing Strategy and Digital Strategy.Read More
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1113$5,000+2 - 9 employeesSeal Beach, CAECommerce Institute is a small web design company launched in 2011. Their team focuses on Web Design and Social Media Marketing.Read More
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1114$1,000+2 - 9 employeesLos Angeles, CAGrabResults, LLC is an Advertising company. Their small team is located in Los Angeles, California and provides Advertising and Content Marketing. The company was established in 2015.Read More
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1115$5,000+2 - 9 employeesDublin, CAWeb design agency 360 Web Designs was founded in 2004. The team offers Web Design and Web Development.Read More
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1116Undisclosed2 - 9 employeesGarden Grove, CAOsoLabs is a social media marketing agency founded in 2007. The team offers Social Media Marketing and Email Marketing.Read More
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1117$5,000+2 - 9 employeesIrvine, CAEstablished in 2016, Stray Digital is a Digital Strategy company. Their services include Digital Strategy and Conversion Optimization.Read More
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1118$250,000+2 - 9 employeesSan Diego, CAImpactful Digital Media, a pay per click agency, was founded in 2019. The firm focuses on Pay Per Click and Content Marketing, and is small.Read More
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1119Undisclosed10 - 49 employeesLos Angeles, CARead More
Small IT managed services company Los Angeles IT, is headquartered in Los Angeles, California; Santa Monica, California; Los Angeles, California and Los Angeles, California. Launched in 2016, the team offers IT managed services, Search Engine Optimization, BI & big data consulting & SI, cloud consulting & SI, and more.
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1120$5,000+10 - 49 employeesHuntington Beach, CARipcord Digital Inc. Is a custom software development firm. Established in 2010, their team focuses on Custom Software Development and UX/UI Design.Read More
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1121$1,000+10 - 49 employeesDiamond Bar, CAMRJ SOFT is an Advertising company. Based in Diamond Bar, California, the team offers Advertising and Branding.Read More
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1122$1,000+10 - 49 employeesLos angeles, CAContent Marketing company Brandvault360 is located in Los angeles, California. They provide Content Marketing and E-Commerce Development.Read More
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1123$1,000+10 - 49 employeesFremont, CAEInnoSys is a software development firm. The team is located in Fremont, California and Ahmedabad, India, and their services include Custom Software Development and Search Engine Optimization.Read More
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1124$1,000+10 - 49 employeesRiverside, CA5 Core Digital Marketing is a social media marketing firm. In Riverside, California, their small team focuses on Social Media Marketing and Content Marketing. The company was founded in 1984.Read More
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1125$1,000+10 - 49 employeesSan Jose, CALaunched in 2018, Shubpy Solutions Pvt Ltd is a custom software development company. The small team focuses on Custom Software Development and Search Engine Optimization.Read More
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1126$1,000+50 - 249 employeesLos Angeles, CASkylane Solutions is a Marketing Strategy company launched in 2019. They are located in Los Angeles, California; Brampton, Canada; Mohali, India and Narre Warren South, Australia and have a midsize team. The company provides Marketing Strategy, Social Media Marketing, Search Engine Optimization, Pay Per Click, and more.Read More
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1127Undisclosed10 - 49 employeesSan Francisco, CARank Science Inc. Is a SEO services firm founded in 2016. The team focuses on Search Engine Optimization and Pay Per Click and is based in San Francisco, California.Read More
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1128Undisclosed10 - 49 employeesLos Angeles, CAFounded in 1998, Professional Optimizer is a SEO company. The team provides Search Engine Optimization and Social Media Marketing.Read More
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1129Undisclosed10 - 49 employeesIrvine, CAEstablished in 2009, Local SEO Help is a SEO company. The team specializes in Search Engine Optimization and Social Media Marketing and is in Irvine, California.Read More
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1130Undisclosed10 - 49 employeesSan Diego, CAArvanza Consulting is a small San Diego, California-based SEO company and pay per click company. Their services include Search Engine Optimization and Pay Per Click.Read More
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1131$1,000+50 - 249 employeesPalo Alto, CAAmz Ready is an Other Digital Marketing company. The team specializes in Other Digital Marketing and Business Consulting and is located in Palo Alto, California.Read More
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1132$1,000+50 - 249 employeesOakland, CABranding company Pace Digitals offers Branding and Social Media Marketing. They were launched in 2016.Read More
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1133$5,000+50 - 249 employeesLos Angeles, CASwipecreatif is a branding agency established in 2022. The team provides Branding and Social Media Marketing and is located in Los Angeles, California and Los Angeles, California.Read More
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1134$1,000+50 - 249 employeesSunnyvale, CAContent Marketing company The Web Coders Agency is based in Sunnyvale, California. Their services include Content Marketing and Mobile & App Marketing.Read More
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1135$10,000+2 - 9 employeesSan Jose, CAEstablished in 2013, AIG MARKETER is a PPC agency. The team offers Pay Per Click and Digital Strategy and is based in San Jose, California.Read More
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1136Undisclosed2 - 9 employeesLong Beach, CADesignFluxx is a small web design agency. Founded in 2011, the team offers Web Design and Branding.Read More
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1137$5,000+2 - 9 employeesSan Francisco, CAIn San Francisco, California, Leapup Marketing Solutions is a Digital Strategy company. They specialize in Digital Strategy and Marketing Strategy and were launched in 2002.Read More
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1138$5,000+2 - 9 employeesLos Angeles, CAVolcanic Star, LLC is a web development firm. Established in 2013, the company is in Los Angeles, California and. Their services include Web Development and Mobile App Development.Read More
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1139$5,000+2 - 9 employeesLos Angeles, CALIVALTO is a web design agency. They are headquartered in Los Angeles, California, and their services include Web Design and Branding.Read More
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1140$1,000+2 - 9 employeesNewport Beach, CATechifornia IT Services is an IT managed services company. In Newport Beach, California, the team specializes in IT managed services and IT strategy consulting.Read More
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