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.
List of the Best California SEO Firms
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$1,000+50 - 249 employeesSan Antonio, TXMidsize SEO company Funnel Boost Media, is headquartered in San Antonio, Texas; Doral, Florida; Boston, Massachusetts and San Francisco, California. They focus on Search Engine Optimization, Advertising, Pay Per Click, and Web Design and were 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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1$50,000+50 - 249 employeesSan Francisco, CAVictorious is a SEO company. Launched in 2013, the team offers Search Engine Optimization, Content Marketing, and Web Development. Their midsize firm is located in San Francisco, California.Read More
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Agora Wayfair Spotify University of MiamiIndustries
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2$10,000+250 - 999 employeesSan Diego, CAIgnite Visibility is a midsize SEO agency established in 2013. Their team focuses on Search Engine Optimization, Pay Per Click, Web Design, Social Media Marketing, and more. The agency is in San Diego, California; Orlando, Florida and Orlando, Florida.Read More
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Tony Robbins Wawanesa The General Insurance ExperianIndustries
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3$1,000+2 - 9 employeesAnaheim, CASEO agency Zupo was launched in 2019. The firm focuses on Search Engine Optimization and has a small team.Read More
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VincitIndustries
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4$1,000+50 - 249 employeesLos Angeles, CARead More
Launched in 2009, Coalition Technologies is a SEO company. Their midsize team is based in Los Angeles, California; Seattle, Washington and Austin, Texas. Their team specializes in Search Engine Optimization, Pay Per Click, Web Design, and Web Development.
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PayPalIndustries
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5$1,000+10 - 49 employeesSan Diego, CANextLeft is a SEO services firm. The San Diego, California-based agency was launched in 2015. The small team offers Search Engine Optimization, Content Marketing, and Pay Per Click.Read More
Clients
Hallmark Inc.Industries
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6$1,000+50 - 249 employeesSan Diego, CARead More
Titan Growth is a marketing and advertising firm based in San Diego, Calif. and founded in 2004. Titan Growth's team of about 45 employees primarily offers digital strategy services, although it also offers search engine optimization and pay per click services.
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MizunoIndustries
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7$5,000+10 - 49 employeesLa Mirada, CARead More
Wiideman Consulting Group is a marketing and advertising agency founded in 2015. Located in La Mirada, Calif., their team of about 15 employees specializes in providing SEO and marketing strategy services and consulting chiefly to small and medium-sized businesses across various industries. Other services include audits, search engine marketing, and more.
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IHOPIndustries
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8$5,000+50 - 249 employeesLos Angeles, CARead More
Launched in 2015, Hennessey Digital is a midsize SEO company. Their services include search engine optimization, pay per click, ux/ui design, content marketing, and more. The company is in Los Angeles, California.
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John Foy & AssociatesIndustries
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9$1,000+50 - 249 employeesLos Angeles, CARead More
HawkSEM is a pay per click company. Launched in 2006, the midsize agency is based in Los Angeles, California. Their services include Pay Per Click, Search Engine Optimization, and Social Media Marketing.
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Microsoft Honda DataDog NikeIndustries
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10$1,000+250 - 999 employeesAnaheim, CASEO services firm Digital Web Solutions was founded in 2005. The midsize team focuses on search engine optimization, pay per click, web development, and content writing services. The company is based in Newark, Delaware.Read More
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11$1,000+10 - 49 employeesLos Angeles, CALawRank is a small SEO agency. Launched in 2014, the firm is in Los Angeles, California and New York, New York. Their services include Search Engine Optimization, Advertising, Pay Per Click, and Web Design.Read More
Clients
Lorenz & LorenzIndustries
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12$1,000+10 - 49 employeesSan Francisco, CARead More
Jives Media is a SEO company. The small San Francisco, California-based agency was launched in 2012. Their team specializes in Search Engine Optimization, Pay Per Click, Advertising, Branding, and more.
Clients
OracleIndustries
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13$1,000+10 - 49 employeesSan Diego, CARead More
Reporter Outreach is a PR agency and SEO services firm established in 2017. Their small team is in San Diego, California. The agency offers public relations and search engine optimization.
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14$1,000+10 - 49 employeesCarlsbad, CASEO services firm SEO Inc. Was launched in 1997. Their small team is based in Carlsbad, California and Mt. Juliet, Tennessee. Their services include Search Engine Optimization and Pay Per Click.Read More
Clients
PG&E CorporationIndustries
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15$5,000+250 - 999 employeesSan Diego, CARead More
Founded in 2012, Power Digital is a social media marketing agency. They are based in San Diego, California; New York, New York and Arlington, Virginia and have a midsize team. Their services include Social Media Marketing, Search Engine Optimization, Pay Per Click, Advertising, and more.
Clients
TOMSIndustries
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16$1,000+50 - 249 employeesSan Diego, CARead More
SEO company iLawyerMarketing was founded in 2006. Based in San Diego, California, their midsize team specializes in search engine optimization, pay per click, and web design.
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17$5,000+10 - 49 employeesIrvine, CARead More
Flying V Group, founded in 2016, is a digital marketing company headquartered in Irvine, Calif. The company’s team of 7 employees provide content marketing, PPC, SEO, social media marketing, and web design services to mid-market, small, and enterprise businesses. The businesses they serve are in a variety of industries including the advertising & marketing, business services, and financial services industries.
Clients
American AirlinesIndustries
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18$5,000+10 - 49 employeesIrvine, CARead More
Digital marketing agency Window To Recovery is headquartered in Costa Mesa, Calif. Since 2017, their small team of 2 has been specializing in digital strategy, SEO, web design, advertising, and more.
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Spencer Recovery CentersIndustries
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19$5,000+50 - 249 employeesLos Angeles, CARead More
GR0 is a digital marketing agency founded in 2020 in Los Angeles with over 10 employees. They provide SEO solutions to various clients.
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Advantage Rent A CarIndustries
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20Undisclosed10 - 49 employeesSimi Valley, CARead More
Bruce Clay, Inc. is a digital marketing agency headquartered in Simi Valley, CA, with additional offices in Switzerland, India, and Japan. The agency and its 85+ employees have experience with social media marketing, PPC, and SEO.
Clients
Pitney Bowes -
21$1,000+10 - 49 employeesLos Angeles, CARead More
Bliss Drive is a digital marketing company based in Los Angeles with a secondary office in Irvine, Calif. Bliss Drive was founded in 2007 and now features a team of about a dozen employees providing SEO, PPC, web design, digital strategy, and conversion optimization services.
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Smart Bean IncIndustries
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22$1,000+50 - 249 employeesCosta Mesa, CARead More
Based in Costa Mesa, California; Raleigh, North Carolina and Austin, Texas, KlientBoost is a pay per click agency. Launched in 2015, the midsize team offers Pay Per Click, Advertising, Social Media Marketing, Conversion Optimization, and more.
Clients
BloombergIndustries
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23$10,000+50 - 249 employeesCarlsbad, CARead More
Storm Brain is a web design agency. Headquartered in Carlsbad, California; Costa Mesa, California; Santa Monica, California and New York, New York, their midsize team provides Web Design, Web Development, Search Engine Optimization, Pay Per Click, and more. The firm was founded in 2007.
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Nike Chase (JPMorgan Chase & Co.) Citi (Citigroup) TargetIndustries
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24Undisclosed10 - 49 employeesWestlake Village, CARead More
Founded in 2010, Sachs Marketing Group is a local SEO firm based in Westlake Village, California. With a team of approximately 15 employees, Sachs Marketing Group assists clients with SEO, web design, and social media marketing.The client appreciated that Sachs Marketing Group was highly responsive and able to achieve a first page ranking for nearly all keywords the client identified, with an ongoing commitment to achieving more difficult keyword results.
Clients
BMWIndustries
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25$10,000+10 - 49 employeesSacramento, CARead More
Three29, a web design agency, is located in Sacramento, California and Jacksonville, Florida. They focus on Web Design, Web Development, Pay Per Click, Search Engine Optimization, and more and were founded in 2010.
Clients
Facebook Bogle Family Vinyards Greater Sacramento Economic Council Mikuni SushiIndustries
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26$10,000+10 - 49 employeesSan Diego, CALocated in San Diego, California, WISE Digital Partners is a SEO company. The small team provides Search Engine Optimization, Pay Per Click, Web Design, Web Development, and more and was established in 2016.Read More
Industries
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27$1,000+10 - 49 employeesSan Diego, CAESEOspace is a San Diego, California-based web design agency. Established in 2018, the small team provides Web Design, Search Engine Optimization, Web Development, E-Commerce Development, and more.Read More
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28$5,000+10 - 49 employeesEncinitas, CARead More
Headquartered in Encinitas, California, Collective42 is a web design company. The small company was launched in 2017. Their team provides Web Design, Web Development, Search Engine Optimization, and Pay Per Click.
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29$5,000+10 - 49 employeesWest Hollywood, CAElk Marketing is a Marketing Strategy company located in West Hollywood, California. The small agency was founded in 2016. Their team focuses on Marketing Strategy, Search Engine Optimization, Pay Per Click, and Social Media Marketing.Read More
Clients
Arc'TeryxIndustries
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30$1,000+10 - 49 employeesLos Angeles, CARead More
Shoreline Media Marketing is an SEO strategy company based in Asbury Park, N.J., with a secondary location in Los Angeles. Founded in 2010, this company has 10 employees. Services provided by Shoreline Media Marketing include web development, SEO, and marketing automation for small to mid-sized businesses.
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Christensen RecyclingIndustries
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