Top 100 SEO Companies in California
The Best of September 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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301$10,000+10 - 49 employeesIrvine, CARead More
Custom Software Solutions, Inc is a software house based in Irvine, Calif., and founded in 2005. With no more than 50 experts, they provide SEO, PPC, and custom software development solutions to clients ranging from startups to large businesses.
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HID GlobalIndustries
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302$1,000+2 - 9 employeesCarlsbad, CARead More
ACA Web Consulting is a digital marketing agency located in Carlsbad, Calif. and founded in 2001. They are a two person firm that specializes in digital strategy, SEO, and web design.
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Life Purpose -
303$5,000+2 - 9 employeesSan Diego, CARead More
Software development company EyeUniversal is in San Diego, California. The small firm was established in 2005. Their services include custom software development, mobile app development, search engine optimization, web design, and more.
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304$1,000+2 - 9 employeesLos Angeles, CARead More
QualiLogic, LLC is a web and mobile firm based in Northridge, Calif. with more than two employees. They have offered mobile app development, e-commerce development, and SEO solutions to small businesses in the fields of arts, consumer products, and more.
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Care Connectors Med GroupIndustries
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305$1,000+10 - 49 employeesSan Diego, CARead More
Digital strategy company DesignStudio was launched in 2010. The company offers digital strategy, email marketing, pay per click, search engine optimization, and more and has a small team.
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306$1,000+2 - 9 employeesSan Diego, CARead More
Founded in 2020, Barad Marketing Solutions is a pay per click company. Their small team is in San Diego, California and offers pay per click.
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Malcolm Smith MotorsportsIndustries
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307$5,000+2 - 9 employeesFresno, CARead More
Established in 2005, WorldLight Media is a branding firm. Their small team is headquartered in Fresno, California. Their services include branding, web design, web development, graphic design, and more.
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308$25,000+10 - 49 employeesCalabasas, CABidWaves is a social media marketing company. They focus on Social Media Marketing, Search Engine Optimization, Pay Per Click, and Digital Strategy and were launched in 2025. Their small team is Calabasas, California-based.Read More
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309$1,000+10 - 49 employeesSan Diego, CARead More
Compass Digital, a digital strategy company, was established in 2022. Located in San Diego, California, their small team focuses on digital strategy, email marketing, search engine optimization, and pay per click.
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310$1,000+50 - 249 employeesManteca, CAMidsize SEO agency SEO Consultant, is headquartered in Manteca, California. The team specializes in Search Engine Optimization.Read More
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311Undisclosed10 - 49 employeesPismo Beach, CAFinfrock Marketing is a Pismo Beach, California-based SEO services firm. The small agency was founded in 2010. Their services include Search Engine Optimization, Web Design, Marketing Strategy, Content Marketing, and more.Read More
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312$1,000+2 - 9 employeesCampbell, CABrix & Mortar is a SEO company and web design company. Based in Campbell, California, their small team provides search engine optimization and web design. The agency was founded in 2012.Read More
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313$5,000+2 - 9 employeesMission Viejo, CARead More
Digital strategy company Darby Works, Inc. Was launched in 2003. Located in Mission Viejo, California, their small team specializes in digital strategy, pay per click, search engine optimization, content marketing, and more.
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314Undisclosed2 - 9 employeesLos Angeles, CAOrbital SEO is a small SEO agency. They specialize in search engine optimization and content writing services and were established in 2020. The firm is based in Los Angeles, California.Read More
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315$1,000+10 - 49 employeesMarina del Rey, CAStructured Agency is an Ecommerce Marketing company. The Marina del Rey, California-based firm was founded in 2018. The small team offers Ecommerce Marketing, Email Marketing, Conversion Optimization, Media Planning & Buying, and more.Read More
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316$1,000+2 - 9 employeesSan Diego, CARead More
Local A.i. is a lead-generating agency based in San Diego with more than two experts. Founded in 2018, they are experts in social media marketing, web design, and SEO solutions for small and mid-market agencies alike.
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Pure Customer Service -
317$5,000+2 - 9 employeesEl Segundo, CAEat Sleep Work is a branding company. In El Segundo, California, the agency was established in 2005. Their services include Branding and Web Design.Read More
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318$5,000+2 - 9 employeesRedondo Beach, CAByer Company is a small Redondo Beach, California-based Content Marketing company. They offer Content Marketing, Search Engine Optimization, Web Design, Graphic Design, and more and were founded in 2002.Read More
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319$1,000+2 - 9 employeesDavis, CARead More
Launched Digital Solutions LLC is a Davis, California-based social media marketing firm. Launched in 2021, the small team provides social media marketing, marketing strategy, web design, ux/ui design, and more.
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North Park CreameryIndustries
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320Undisclosed2 - 9 employeesLos Angeles, CARead More
Promotion LA Digital Marketing Agency , an advertising company, was founded in 1983. In Los Angeles, California, their small team specializes in advertising, branding, marketing strategy, social media marketing, and more.
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321$10,000+10 - 49 employeesSanta Rosa, CARead More
Barrels Ahead is a small marketing strategy company. They specialize in marketing strategy, conversion optimization, pay per click, search engine optimization, and more and were established in 2008.
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322$1,000+50 - 249 employeesLos Angeles, CASkylane Solutions is a Los Angeles, California-based Marketing Strategy company. The midsize company was established in 2019. Their team specializes in Marketing Strategy, Social Media Marketing, Search Engine Optimization, Pay Per Click, and more.Read More
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323$5,000+10 - 49 employeesGlendale, CARoyal Digital Agency is a small branding agency located in Glendale, California. Established in 2016, the team specializes in branding, digital strategy, social media marketing, content marketing, and more.Read More
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324$1,000+50 - 249 employeesBurbank, CARead More
Digital Promotion Agency is a digital marketing agency based in Burbank, Calif., with offices in Melbourne and London. Since 2015, the team of under 250 has been specializing in social media marketing, SEO, web design, and more. They work primarily with enterprises, in the e-commerce, advertising and marketing, and business service agencies industries.
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Ridechina.comIndustries
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325$1,000+10 - 49 employeesSan Francisco, CAGreenlights is a Content Marketing company. They are headquartered in San Francisco, California and Poole, England and have a small team. Their services include Content Marketing, Conversion Optimization, Search Engine Optimization, Web Design, and more.Read More
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326$5,000+2 - 9 employeesChico, CARead More
DK Web Design (Chico, CA) is a non-voice bpo/back office services company. They are based in Chico, California and have a small team. Their services include non-voice bpo/back office services, search engine optimization, web design, and web development.
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327$1,000+10 - 49 employeesLos Angeles, CAWeb design company Weblabs Pro was launched in 2024. The small team provides Web Design, Web Development, Search Engine Optimization, and Business Consulting. The company is based in Los Angeles, California.Read More
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328$1,000+10 - 49 employeesMalibu, CAMatador Solutions, LLC, a SEO agency, provide Search Engine Optimization. They were launched in 2013.Read More
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David A DiBrigidaIndustries
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329$1,000+2 - 9 employeesPilot Hill, CARead More
Norcal Web Designs is a web design and development team headquartered in Sacramento, Calif. With a team of fewer than 10, they serve small to midmarket businesses in industries like business and consumer services, IT, e-commerce. They also offer SEO and e-commerce development services. They were founded in 2013.
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Premier Pools & SpasIndustries
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330$1,000+10 - 49 employeesSan Francisco, CACitrine Groupe LLC is a small SEO company based in San Francisco, California. Established in 2012, the team provides Search Engine Optimization, Pay Per Click, Custom Software Development, Web Development, and more.Read More
Industries
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