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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1501$5,000+2 - 9 employeesMill Valley, CARead More
BrandTech.co is an advertising company. They provide advertising, branding, digital strategy, search engine optimization, and more and were launched in 2014. Their small team is located in Mill Valley, California.
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1502$1,000+50 - 249 employeesLos Angeles, CARevana Digital is a Content Marketing company founded in 1995. The team focuses on Content Marketing and Conversion Optimization.Read More
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1503$5,000+50 - 249 employeesSan Diego, CAFounded in 2008, LeaseLabs is a midsize San Diego, California-based Advertising company. Their services include Advertising and Branding.Read More
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1504$5,000+50 - 249 employeesSan Francisco, CAEstablished in 1997, The Mark Company is a midsize Advertising company. Their team offers Advertising and Branding.Read More
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1505$5,000+50 - 249 employeesSan Francisco, CAThe Sage Group is an Advertising company founded in 2003. The team offers Advertising and Branding.Read More
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1506$5,000+50 - 249 employeesOakland, CAAdvertising company Captricity was launched in 2011. The team focuses on Advertising and Branding and is based in Oakland, California.Read More
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1507$5,000+50 - 249 employeesRedwood City, CATDA Group, an Advertising company, is based in Redwood City, California. They focus on Advertising and Branding.Read More
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1508$5,000+50 - 249 employeesBeverly Hills, CAAdvertising company Digital Media Management is located in Beverly Hills, California and New York, New York. They offer Advertising and Branding and were established in 2010.Read More
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1509Undisclosed50 - 249 employeesSan Francisco, CAMediasmith, an Advertising company, is based in San Francisco, California. Their services include Advertising and Branding.Read More
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1510$5,000+50 - 249 employeesSan Francisco, CAEveo is a midsize Advertising company located in San Francisco, California and New York, New York. The team provides Advertising and Branding.Read More
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1511$5,000+50 - 249 employeesOakland, CABroadly, an Advertising company, is based in Oakland, California and Orange County, California. They provide Advertising and Branding and were launched in 2013.Read More
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1512$5,000+50 - 249 employeesSan Francisco, CALaunched in 2012, Radius, a midsize Advertising company, is located in San Francisco, California and Atlanta, Georgia. Their team provides Advertising and Branding.Read More
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1513$5,000+50 - 249 employeesTustin, CALocal Lighthouse is an Advertising company. They are headquartered in Tustin, California and have midsize team. They focus on Advertising and Branding.Read More
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1514$5,000+50 - 249 employeesFountain Valley, CALocal Splash is an Advertising company established in 2004. The team offers Advertising and Branding.Read More
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1515Undisclosed50 - 249 employeesLos Angeles, CABeCore is an Advertising company established in 1999. The team offers Advertising and Branding and is in Los Angeles, California.Read More
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1516$5,000+50 - 249 employeesLos Angeles, CAONTRIX is a graphic design agency. They specialize in Graphic Design and Search Engine Optimization and are based in Los Angeles, California.Read More
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1517$5,000+50 - 249 employeesLos Angeles, CASystronic IT Group, a graphic design company, is in Alexandria, Australia and Los Angeles, California. Their services include Graphic Design and Search Engine Optimization.Read More
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1518$10,000+50 - 249 employeesLos Angeles, CAAdvertise.com, an Advertising company, was established in 2001. The team provides Advertising and Search Engine Optimization and is headquartered in Los Angeles, California and India.Read More
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1519Undisclosed50 - 249 employeesSan Francisco, CAEvoke Giant is a branding company. Their midsize team of employees is in San Francisco, California. Their team provides Branding and Event Marketing.Read More
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1520Undisclosed50 - 249 employeesFolsom, CAMicrosan Consultancy Services, an AR/VR development company, was launched in 2010. They specializes in AR/VR development and cloud consulting & SI.Read More
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1521Undisclosed50 - 249 employeesRedondo Beach, CAWorldmedia Interactive, a media planning & buying company, focus on Media Planning & Buying and Search Engine Optimization. They were launched in 1999.Read More
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1522Undisclosed50 - 249 employeesSan Francisco, CALevelwing is a pay per click agency. The agency is located in New York, New York and San Francisco, California. Their services include Pay Per Click and Search Engine Optimization.Read More
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1523Undisclosed50 - 249 employeesCorona, CAWebMedia - Corona, CA is a Content Marketing company. The Corona, California-based team focuses on Content Marketing and Email Marketing.Read More
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1524Undisclosed50 - 249 employeesSan Francisco, CAFounded in 2014, inPowered, a midsize Advertising company, is based in San Francisco, California. Their services include Advertising and Branding.Read More
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1525Undisclosed50 - 249 employeesSan Diego, CAPACIFIC is a Content Marketing company. Based in San Diego, California and London, England, the company was established in 2012. Their services include Content Marketing and Graphic Design.Read More
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1526Undisclosed50 - 249 employeesCorona, CAPay per click agency TurnKey Marketing is headquartered in Corona, California. They specialize in Pay Per Click and Search Engine Optimization and were founded in 2002.Read More
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1527Undisclosed10 - 49 employeesLos Angeles, CASEARCH24ONLINE is a SEO agency. They are headquartered in Kamalpur, India and Los Angeles, California and have small team of experts. Their services include Search Engine Optimization.Read More
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1528$1,000+50 - 249 employeesTorrance, CARead More
RHILLANE Marketing Digital, an advertising company, was founded in 2018. The small Tangier, Morocco-based team offers advertising, content marketing, graphic design, web design, and more.
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1529Undisclosed50 - 249 employeesMenlo Park, CAInboundLabs is a SEO services firm. The team offers Search Engine Optimization and Pay Per Click and is headquartered in Menlo Park, California.Read More
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1530Undisclosed50 - 249 employeesSan Diego, CA1Point21 Interactive is a SEO services firm. The San Diego, California-based firm focuses on Search Engine Optimization and Public Relations.Read More
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Check out a SEO Company in California with the most new reviews in the past 12 months.
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