Top 100 SEO Companies in California
The Best of October 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.
List of the Best California SEO Firms
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91Undisclosed2 - 9 employeesSan Diego, CALaunched in 2016, JetRank Agency- SEO Services San Diego is a SEO agency. Their small team is based in San Diego, California and provides Search Engine Optimization, Pay Per Click, Public Relations, and Market Research.Read More
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92$5,000+2 - 9 employeesLos Angeles, CABased in Los Angeles, California and Toronto, Canada, H & CO Agency is a SEO company. The small firm was established in 2018. Their team focuses on Search Engine Optimization, Web Design, and Pay Per Click.Read More
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Toronto ElectricIndustries
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93Undisclosed10 - 49 employeesAgoura Hills, CARead More
Located in Agoura Hills, Calif., Custom Creatives is a digital marketing company with expertise in SEO, software development, and web/graphic design. With fewer than 50 employees, they work with both big and small companies and offer a free client consultation and website audit report.
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MoveIndustries
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94$1,000+2 - 9 employeesChico, CARead More
Since 2018, CRP Marketing has worked in Chico California, providing digital marketing services for small businesses. The 1-man show works exclusively with small businesses.
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95$50,000+50 - 249 employeesSan Diego, CARead More
BusinessOnline is a digital marketing agency with offices in San Diego and Boston. The team of 80+ specializes in PPC, SEO, and digital strategy and mostly serves mid-market and enterprise businesses. They take a data-driven approach to all projects with clients.
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HPIndustries
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96$5,000+2 - 9 employeesWest Hollywood, CARead More
Intensify is a boutique advertising agency in Los Angeles. Founded in 2014, their 1-person team provides web design, social media marketing, digital strategy, marketing strategy, and advertising services. Most clients are small businesses.
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NailbooIndustries
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97$5,000+2 - 9 employeesBurbank, CARead More
Elevate My Brand(EMB), founded in 2010, works with B2B and B2C businesses using strategies that help the client achieve advertising and marketing goals. With a focus on event marketing, digital strategy, and social media marketing, a team of 9 at EMB works with clients in the business, IT, social media, and healthcare spaces.
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FacebookIndustries
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98$5,000+10 - 49 employeesLos Angeles, CARead More
Advertising company Yourhouse Marketing was launched in 2022. The small Los Angeles, California-based team offers advertising.
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99$1,000+10 - 49 employeesTemecula, CARead More
Launched in 2019, Marketing Empire Group is a branding firm. They are in Corona, California; Temecula, California and Carson City, Nevada and have a small team. The company focuses on branding, digital strategy, search engine optimization, pay per click, and more.
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100$10,000+10 - 49 employeesSan Diego, CARead More
Since 2014, Brandetize have worked with clients providing digital strategies, content marketing, SEO, social media marketing and conversion optimization services. Headquartered in San Diego, a team of 50 focus client efforts on Facebook Advertising, Google AdWords, Instagram advertising, and influencer marketing
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The Good Feet StoreIndustries
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101$5,000+10 - 49 employeesSanta Monica, CARead More
Act Bold Media Group is a full-service digital marketing agency based in Santa Monica, California. With approximately 10 employees, they primarily assist clients with web development, SEO, and PPC. The client valued Act Bold Media's proactive attitude, commitment to staying on budget, and ability to customize their services.
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Photos.comIndustries
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102$5,000+10 - 49 employeesLos Angeles, CAVisible Factors, a small SEO services firm, is headquartered in Los Angeles, California. They provide Search Engine Optimization, Pay Per Click, Content Marketing, Email Marketing, and more and were founded in 2014.Read More
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Adobe Blue Bottle Coffee Jenni Kayne TicketmasterIndustries
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103$1,000+2 - 9 employeesSan Jose, CARead More
SocialSellinator is a digital advertising agency that was founded in 2018 and is headquartered in San Jose, Calif. The company is made up of less than 10 employees and specializes in social media marketing, content marketing, and graphic design.
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ON24Industries
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104$5,000+10 - 49 employeesAnaheim, CARead More
Webstract Marketing is a LA-based digital marketing agency founded in 2011. Their team of approximately 10 employees primarily serves small businesses. Although they specialize in SEO and web design, they also provide other forms of web marketing. They're particularly proficient in PHP.
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105$10,000+2 - 9 employeesCarlsbad, CAChase Design is a web design company. The small team is based in Carlsbad, California. Their services include Web Design, Branding, Search Engine Optimization, and Logo.Read More
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Nelson JobsIndustries
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106$1,000+10 - 49 employeesSan Diego, CAFormula Marketing is a small social media marketing agency in San Diego, California. Founded in 2008, the team provides Social Media Marketing, Content Marketing, Digital Strategy, Graphic Design, and more.Read More
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107$1,000+2 - 9 employeesSanta Monica, CARead More
Top Bros is an SEO company based in Los Angeles. Founded in 2010, their team currently consists of 2 employees. They specialize in SEO, PPC, social media marketing, and web design.
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Bergin GlassIndustries
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108$1,000+10 - 49 employeesSanta Monica, CAIOI Solutions, a pay per click agency, is based in Santa Monica, California. They focus on Pay Per Click, Search Engine Optimization, Conversion Optimization, Web Design, and more and were launched in 2018.Read More
Clients
105 Packaging Onyx Graphics Pacific Hardwood FlooringIndustries
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109$10,000+10 - 49 employeesLos Angeles, CASmalby is a web design company headquartered in Los Angeles, California and Apex, North Carolina. The small team specializes in Web Design, Search Engine Optimization, and Web Development. The agency was established in 2019.Read More
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110Undisclosed2 - 9 employeesOakland, CARead More
Artsy Geek is a boutique web and marketing agency headquartered in Oakland, California with another office in Seattle. The team specializes in integrated marketing, web development, graphic design, internet marketing and social media. Comprised of less than 10 employees, Artsy Geek is a team of skilled designers, marketers, and coders. Founded in 2011, it collaborates with clients to build and grow their brand identities for a strengthened online presence.
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Fistula FoundationIndustries
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111$5,000+10 - 49 employeesSan Diego, CARead More
Digital marketing agency Digitopia was founded in 2004. With headquarters in Carlsbad, Calif., they have a team of 11. They specialize in digital strategy, content marketing, and conversion optimization.
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112$25,000+10 - 49 employeesSan Diego, CARead More
Website development firm Alliance Innovations is located in San Diego, California. The small agency was founded in 2019. Their team focuses on web development, digital strategy, custom software development, mobile app development, and more.
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113$1,000+2 - 9 employeesFresno, CARead More
Proactive Online Marketing, a SEO services firm, is in Fresno, California. The small team offers search engine optimization, pay per click, and social media marketing. The company was established in 2007.
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114Undisclosed10 - 49 employeesSan Diego, CARead More
Doctor Multimedia is a medical web development and SEO agency headquartered in La Jolla, Calif. with a satellite office in Las Vegas, Nev. The agency has just over 30 employees and was founded in 2010. Doctor Multimedia also offers PPC, social media marketing, web design, and content marketing services. The majority of its clients are small businesses, though it works with some midmarket businesses.
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115$1,000+2 - 9 employeesRiverside, CARead More
Raincross is an online marketing agency from Riverside, Calif. that was established in 2012. Their 1 person team provides SEO, PPC, and web design services to companies of all sizes.
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REGENESISIndustries
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116$5,000+10 - 49 employeesAliso Viejo, CARead More
Strativise Industrial Marketing Agency is a Digital Strategy company established in 2022. The small team provides Digital Strategy, Social Media Marketing, Content Marketing, Email Marketing, and more. The firm is located in Aliso Viejo, California.
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Marco Rubber & Plastics Discflo CFS Technologies TavoronIndustries
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117$1,000+10 - 49 employeesOakland, CARead More
Rainfactory is a full-service digital marketing agency based in Oakland, Calif., with a secondary location in Seattle. Founded in 2014, this company has 22 employees. Services offered by Rainfactory include social media marketing, PPC, and advertising for small to mid-sized businesses.
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OneWheelIndustries
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118$5,000+10 - 49 employeesSan Francisco, CARead More
Thomas Digital Web Design is a web design agency based in San Francisco. The agency, founded in 2010, is a team of less than ten that provides web design, web development, and SEO services to small and midmarket companies.
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California Olive RanchIndustries
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119$1,000+2 - 9 employeesTemecula, CARead More
Sienna Creative LLC is a web design agency headquartered in Temecula, California. The small team provides web design, marketing strategy, email marketing, conversion optimization, and more. The company was founded in 2020.
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120$25,000+2 - 9 employeesEncinitas, CAParkerWhite, A Healthcare Agency is a pay per click company. Launched in 1997, the team focuses on Pay Per Click, Branding, Logo, Marketing Strategy, and more. Their small firm is based in Encinitas, California and Andorra.Read More
Clients
Fujifilm SonositeIndustries
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