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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331$5,000+2 - 9 employeesLaguna Hills, CAHeadquartered in Laguna Hills, California, Modern Labyrinth is a SEO services firm. The small team specializes in Search Engine Optimization, Web Design, Custom Software Development, Web Development, and more and was launched in 2015.Read More
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332$1,000+10 - 49 employeesSacramento, CABased in Sacramento, California, Premier Reputation Management is a PR agency. The small firm was founded in 2024. Their team focuses on public relations, search engine optimization, and branding.Read More
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333$5,000+2 - 9 employeesCovina, CACrowdScale, a small SEO agency, is located in Covina, California. Launched in 2025, the team specializes in Search Engine Optimization, Generative AI, Branding, and Artificial Intelligence.Read More
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334$5,000+2 - 9 employeesSan Francisco, CASapiens Growth Marketing Agency is a SEO services firm established in 2023. They are located in San Francisco, California and have a small team. The company specializes in search engine optimization, digital strategy, social media marketing, content marketing, and more.Read More
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Cambrian FutureIndustries
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335$10,000+10 - 49 employeesFullerton, CAEstablished in 2017, Fratzke is a Marketing Strategy company. The small team provides Marketing Strategy, Branding, Market Research, Web Design, and more. The agency is in Fullerton, California.Read More
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336Undisclosed10 - 49 employeesHayward, CARead More
Fourandhalf, Inc. is a marketing agency based in Hayward, Calif., with an additional location in Perth, Australia. Founded in 2012, this company has 27 employees. Fourandhalf, Inc. offers a range of services including marketing strategy, digital strategy, and content marketing for small businesses and startups.
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Gulf Coast Property ManagementIndustries
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337$1,000+2 - 9 employeesLos Angeles, CARead More
XL Digital Partners is an internet marketing company based in Los Angeles. The company, founded in 2008, has a team of less than ten that provides SEO, PPC, digital strategy, social media marketing, content marketing, email marketing, and conversion optimization services to various companies.
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TrueLanguageIndustries
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338$1,000+2 - 9 employeesUpland, CARead More
Proud Digital Media is a media production company located in Upland, Calif., and was founded in 2018. Proud Digital Media has nine employees and provides video production, advertising, SEO, social media marketing, and digital strategy services.
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Inland Empire 66ers -
339$1,000+2 - 9 employeesModesto, CAColorstone Marketing is a SEO agency established in 2017. The team provides Search Engine Optimization and Pay Per Click and is based in Modesto, California.Read More
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340$1,000+2 - 9 employeesSan Clemente, CARead More
Convuent is a digital marketing company from San Clemente, California. With one employee, their services include SEO, marketing strategy, and social media marketing. Founded in 2018, their clients are often small businesses in the dental, business, and financial services industries.
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341$1,000+10 - 49 employeesSan Luis Obispo, CAHeadquartered in San Luis Obispo, California, Marcitors is a small Email Marketing company. They specialize in Email Marketing, Search Engine Optimization, Other Digital Marketing, Social Media Marketing, and more and were founded in 2017.Read More
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342$5,000+10 - 49 employeesLos Angeles, CADitans Group is a Business Consulting company. Launched in 2020, the team provides Business Consulting, Digital Strategy, Search Engine Optimization, Pay Per Click, and more. Their small company is Los Angeles, California-based.Read More
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343Undisclosed10 - 49 employeesTemecula, CAPulse Marketing, Inc., an Advertising company, was established in 2013. The team offers Advertising and Market Research and is in Temecula, California.Read More
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344$5,000+2 - 9 employeesSan Diego, CAEthos Ink is a Content Marketing company. Their small team is based in San Diego, California. Their services include Content Marketing, Search Engine Optimization, Ecommerce Marketing, Performance Marketing, and more. The company was launched in 2024.Read More
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345$5,000+10 - 49 employeesTorrance, CARead More
Barakah Agency is a branding company. Established in 2021, the small company is located in Torrance, California. Their team provides Branding, Marketing Strategy, Performance Marketing, Pay Per Click, and more.
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346Undisclosed2 - 9 employeesLos Angeles, CAMeridian Freelance Studio is a SEO company. They are located in London, United Kingdom and Budva, Montenegro and have a small team. Their services include search engine optimization, content marketing, advertising, social media marketing, and more. The firm was established in 2021.Read More
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347$1,000+Freelancer employeesPleasanton, CARead More
TP Designs is a SEO services firm founded in 2001. The small team provides search engine optimization, web design, web development, branding, and more. The firm is headquartered in Pleasanton, California.
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348$1,000+2 - 9 employeesIrvine, CARead More
Small SEO agency GCC Consulting, is in Irvine, California. They provide search engine optimization, pay per click, web design, video production, and more and were established in 2018.
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349$5,000+10 - 49 employeesGlendale, CAQrave Media is an Advertising company. They focus on Advertising, Branding, Search Engine Optimization, Public Relations, and more and were established in 2016. Their small team is Glendale, California-based.Read More
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350$5,000+2 - 9 employeesEncinitas, CAAbyssal Digital, an ecommerce marketing company, was launched in 2017. The company focuses on ecommerce marketing and has a small team. The company is located in Encinitas, California.Read More
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351$5,000+50 - 249 employeesPleasant Hill, CARead More
Founded in 2015, Epik Solutions is a digital services company based in Pleasant Hill, California. They provide a variety of services including digital strategy, web design, content marketing, SEO, and IT consulting.
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352$5,000+10 - 49 employeesDaly City, CAAIM Digital Agency , a digital strategy company, was founded in 2018. The small team specializes in digital strategy, social media marketing, conversion optimization, search engine optimization, and more. The firm is in Salt Lake City, Utah; Daly City, California; Phoenix, Arizona and Seattle, Washington.Read More
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353Undisclosed2 - 9 employeesMenlo Park, CABased in Croydon, England; Menlo Park, California and Dublin, Ireland, Appoint Digital is a branding company. They specialize in Branding, Search Engine Optimization, Content Marketing, Social Media Marketing, and more and were established in 2019.Read More
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354$1,000+2 - 9 employeesIrvine, CABranding agency V-Factor Social is headquartered in Irvine, California. Founded in 2024, the small team provides Branding, Social Media Marketing, Search Engine Optimization, Back Office Outsourcing, and more.Read More
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355$1,000+10 - 49 employeesIrvine, CABased in Irvine, California, K2Z DIGITAL is a social media marketing company. The small team specializes in Social Media Marketing, Content Marketing, Email Marketing, Search Engine Optimization, and more and was established in 2024.Read More
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356Undisclosed10 - 49 employeesFolsom, CASocialmedias is a social media marketing company. Established in 2025, the team focuses on Social Media Marketing, Performance Marketing, Web Design, Search Engine Optimization, and more. Their small agency is located in Bengaluru, India and Folsom, California.Read More
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357$1,000+10 - 49 employeesGlendale, CASocial media marketing company WebStax Studio is in Glendale, California. They offer Social Media Marketing, Search Engine Optimization, Pay Per Click, Web Design, and more and were launched in 2011.Read More
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358Undisclosed2 - 9 employeesBeverly Hills, CARead More
Apex Digital Media is a digital strategy agency that was founded in 2014. They consist of less than 10 employees and are headquartered in Los Angeles. The company specializes in SEO, PPC, and social media marketing.
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Solid State Inc. -
359$10,000+10 - 49 employeesSan Francisco, CAFounded in 2023, daydream is a SEO services firm. Headquartered in San Francisco, California, the team focuses on Search Engine Optimization and Digital Strategy.Read More
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360Undisclosed10 - 49 employeesGlendale, CAMelleka Marketing - A Digital Marketing Agency, a Digital Strategy company, was founded in 2016. Their small team is headquartered in Glendale, California and Los Angeles, California. The agency offers Digital Strategy, Social Media Marketing, Content Marketing, Email Marketing, and more.Read More
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