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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121Undisclosed2 - 9 employeesDublin, CARead More
SevenAtoms is a digital marketing agency in San Francisco, CA. The team of fewer than 10 employees, offers content marketing, pay-per-click (PPC) advertising, SEO, social media, and email marketing to B2B clients. Founded in 2012, SevenAtoms is HubSpot certified and a Google Partner, making them a great resource for companies who use those platforms.
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IncapsulaIndustries
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122$5,000+2 - 9 employeesCosta Mesa, CALocated in Costa Mesa, California, Seal Media is a video production company. The small team offers Video Production, Branding, Content Marketing, Social Media Marketing, and more. The company was launched in 2007.Read More
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Project Adult Learning (PAL)Industries
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123$5,000+2 - 9 employeesSan Diego, CAPPC Force is a PPC company founded in 2021. They are located in San Diego, California and have a small team. Their services include Pay Per Click, Search Engine Optimization, Web Design, and Direct Marketing.Read More
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124Undisclosed10 - 49 employeesSan Diego, CAFounded in 2018, Map Ranks is a small SEO agency located in San Diego, California. Their services include Search Engine Optimization.Read More
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125$5,000+10 - 49 employeesLos Angeles, CARead More
ATAK Interactive is a full-service agency located in Los Angeles. The agency was founded in 2007 and employs a team of 17 staff members. ATAK Interactive provides web development, digital strategy, marketing strategy, content marketing, and graphic design services primarily to small businesses.
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We Rock the Spectrum Kid's GymIndustries
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126$10,000+2 - 9 employeesCarlsbad, CARead More
Nimbletoad is a digital marketing agency based in Carlsbad, Calif. Their team of fewer than 10 offers digital strategy, web design, SEO, and PPC services to small and midmarket businesses. Industries include healthcare and medical, hospitality, and legal. They were founded in 2008.
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Hilton Grand VacationsIndustries
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127$5,000+2 - 9 employeesSanta Barbara, CARead More
AUQ is a web design company founded in 2018. Their small team is located in Santa Barbara, California. The agency provides web design, search engine optimization, and digital strategy.
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128$10,000+10 - 49 employeesCamarillo, CAMarketing Maven is a PR agency. In Camarillo, California and New York, New York, their small team focuses on Public Relations, Market Research, Social Media Marketing, Content Marketing, and more. The company was established in 2009.Read More
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Kingston TechnologyIndustries
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129$5,000+10 - 49 employeesLos Angeles, CARead More
Infinity Media is a social media marketing agency based in Los Angeles, California. Established in 2013, the small team provides social media marketing, digital strategy, email marketing, conversion optimization, and more.
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130$5,000+2 - 9 employeesLa Crescenta-Montrose, CARead More
Mazeless Enterprise SEO is an SEO agency based in La Crescenta, Calif. with no more than 10 professionals. They have provided SEO and content marketing solutions since their founding in 2019. They work with clients in the industries of legal and business services.
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Allstate Service GroupIndustries
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131$5,000+10 - 49 employeesCalabasas, CAEstablished in 2017, AlchemyLeads SEO is a SEO services firm. Their small team is headquartered in Calabasas, California and Middletown, Delaware and offers Search Engine Optimization, Content Marketing, Conversion Optimization, Pay Per Click, and more.Read More
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Scorpion Protective CoatingsIndustries
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132$1,000+10 - 49 employeesCerritos, CARead More
ECF Marketing is a small SEO company. Founded in 2009, the team focuses on search engine optimization, web design, conversion optimization, and pay per click. The agency is headquartered in Cerritos, California.
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133$5,000+10 - 49 employeesLos Angeles, CAFounded in 2003, UNINCORPORATED is a small Marketing Strategy company. Their team specializes in Marketing Strategy, Advertising, Graphic Design, Search Engine Optimization, and more. The firm is based in Los Angeles, California.Read More
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Alaska AirlinesIndustries
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134$5,000+2 - 9 employeesLos Angeles, CARead More
A Los Angeles-based digital marketing firm, Nimbus Marketing was founded in 2007. Their team of fewer than 10 employees offers advertising, branding, digital strategy, SEO, and web design services. They cater to small and midmarket businesses in the business services and consumer products industries.
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Aquatech Aquarium ServiceIndustries
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135$5,000+2 - 9 employeesSan Diego, CARead More
Green Flag Digital is a small Culver City, California-based content marketing and SEO agency. Founded in 2015, the team focuses on content marketing and search engine optimization.
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136$25,000+2 - 9 employeesRedlands, CAFounded in 2016, Hounder is a branding agency. The small Redlands, California-based team focuses on Branding, Search Engine Optimization, Pay Per Click, UX/UI Design, and more.Read More
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137$5,000+50 - 249 employeesSan Francisco, CAPrevisible | The AI Discovery Agency is a midsize SEO services firm launched in 2020. Their team focuses on Search Engine Optimization. The company is in San Francisco, California.Read More
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138$1,000+2 - 9 employeesSacramento, CARead More
E. Curtis Designs is a web development company founded in 2002 and located in Sacramento, Calif. With a team of fewer than 10 employees, they offer web development, SEO, social media marketing, web design, and graphic design services. Their clientele includes small businesses in the business services, financial services, and health care and medical industries.
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Lafitte Music CenterIndustries
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139$10,000+2 - 9 employeesSan Diego, CARead More
Toporin Studio is a web agency based in San Diego with more than two members. Founded in 2016, they offer web design, web development, and SEO solutions for clients in the fields of business services, consumer products, and advertising.
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AirMaxx HVAC, (San Diego, CA)Industries
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140Undisclosed10 - 49 employeesSacramento, CARead More
Post Modern Marketing is a marketing and web design company based in Sacramento, CA, with offices in San Diego, California, that was established in 2010. Their team of 11 employees offers web design, web development, and SEO services.
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Western Digital -
141$5,000+10 - 49 employeesNovato, CARead More
Alaniz is a marketing company based just outside San Francisco in Novato, CA. They were founded in 2008 with the goal of helping businesses navigate the choppy waters of the digital ocean, and today fulfill this ideal with transparency, sound strategy, and marketing expertise. Their team of 11 provide services like advertising, web design, SEO, social media, PR, branding, and content marketing.
Clients
Topcon Positioning Systems,Industries
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142$10,000+10 - 49 employeesSan Jose, CASLIQ BY DESIGN is an Advertising company. Their small team is based in San Jose, California. Their services include Advertising, Branding, Search Engine Optimization, Web Design, and more. The company was established in 2020.Read More
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143$1,000+10 - 49 employeesSan Diego, CARead More
Founded in 2017, The Agency Engine is a other digital marketing company. Based in , their small team specializes in other digital marketing.
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144$1,000+10 - 49 employeesGlendale, CAIn Glendale, California and Glendale, California, B2BSEO.io is a SEO agency. The small firm was launched in 2020. Their team offers Search Engine Optimization.Read More
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145$1,000+2 - 9 employeesFullerton, CASEO services firm Search Business Group was established in 1998. They are headquartered in Fullerton, California; Quito, Ecuador and West Hollywood, California and have a small team. Search Business Group offers Search Engine Optimization, Content Marketing, Web Design, Generative AI, and more.Read More
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Brookhurst Animal Medical CenterIndustries
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146$1,000+10 - 49 employeesSan Diego, CAMarketer Zilla Private Limited is a SEO services firm. Their small team is in Sahibzada Ajit Singh Nagar, India and San Diego, California. The firm offers Search Engine Optimization, Pay Per Click, Content Marketing, Social Media Marketing, and more. The firm was founded in 2021.Read More
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147$1,000+10 - 49 employeesSan Diego, CARead More
OPTYO is a branding firm. Established in 2018, the small firm is headquartered in San Diego, California. Their services include branding, social media marketing, affiliate marketing, search engine optimization, and more.
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Hero BarbellIndustries
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148$1,000+2 - 9 employeesSan Diego, CARead More
Web Reputation Builders is a boutique web design, web development, SEO and online reputation management firm based in San Diego. Founded in 2009, the small team of five employees provides specialized SEO and web design services.
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149$5,000+2 - 9 employeesSan Diego, CARead More
Nomad SEO, a SEO company, is located in San Diego, California. The small team offers search engine optimization and was launched in 2017.
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150$1,000+10 - 49 employeesNewark, CARead More
Marketing Wind is an SEO and link-building outreach company with locations in Newark and San Jose, Calif. Founded in 2015 and with about 5 employees, provide SEO, content marketing, and digital strategy to small-scale clients across an array of industries, including business services, consumer products, healthcare, and more.
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Zetronix.comIndustries
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