Top 100 SEO Companies in California
The Best of June 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
-
121$1,000+2 - 9 employeesLos Angeles, CALaunched in 2016, NameBrand Marketer is a web design agency. They are located in Los Angeles, California and have a small team. Their services include web design, ux/ui design, and logo.Read More
-
122$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.
Clients
OneWheelIndustries
-
123$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
Industries
-
124$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.
Industries
-
125$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.
Clients
REGENESISIndustries
-
126$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.
Clients
California Olive RanchIndustries
-
127$1,000+2 - 9 employeesSan Diego, CASocial media marketing agency Formula Marketing was launched in 2008. The small team provides social media marketing, content marketing, digital strategy, graphic design, and more. The firm is based in San Diego, California.Read More
Industries
-
128Undisclosed2 - 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.
Clients
IncapsulaIndustries
-
129$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
Industries
-
130$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.
Clients
AirMaxx HVAC, (San Diego, CA)Industries
-
131$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.
Industries
-
132$1,000+250 - 999 employeesSanta Clara, CARead More
Milestone Inc is a SEO services firm established in 1998. The midsize Santa Clara, California-based team focuses on search engine optimization, web design, content marketing, and pay per click.
Industries
-
133$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.
Clients
Allstate Service GroupIndustries
-
134$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.
Industries
-
135$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
Clients
Alaska AirlinesIndustries
-
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
Clients
Esri -
137Undisclosed10 - 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.
Clients
Western Digital -
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.
Clients
Lafitte Music CenterIndustries
-
139$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
Clients
Adobe Blue Bottle Coffee Jenni Kayne TicketmasterIndustries
-
140$5,000+2 - 9 employeesSan Francisco, CARead More
Razorfrog Web Design is a website development shop located in San Francisco, CA. Founded in 2008, Razorfrog's team of nearly 10 people specialize in WordPress web design and maintenance. They also offer logo, print, and graphic design, as well as SEO services. RazorFrog works with clients in the business, real estate, and legal industries.
Clients
KZSC RadioIndustries
-
141$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.
Clients
Zetronix.comIndustries
-
142$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
-
143$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.
Industries
-
144$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
Industries
-
145$25,000+10 - 49 employeesOakland, CAMangrove Web is a small website development firm. The Oakland, California-based company was established in 2009. Their team provides Web Development, Web Design, Branding, Content Marketing, and more.Read More
Clients
Mighty NetworksIndustries
-
146$5,000+2 - 9 employeesSanta Monica, CARead More
310 Creative Inc. is a Santa Monica, Calif.-based marketing agency. Founded in 2003, their team of fewer than 10 offers marketing strategy, web design, digital strategy, and conversion optimization services.
Clients
Universal MusicIndustries
-
147$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.
Clients
Aquatech Aquarium ServiceIndustries
-
148$5,000+10 - 49 employeesLos Angeles, CARead More
Founded in 2015, Big Bang Marketing is located in Woodland Hils, Calif. With about 10 employees, they provide SEO, PPC, and social media marketing services for midmarket and small businesses.
Clients
All About Smile Dental Group -
149$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.
Industries
-
150$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
Clients
Brookhurst Animal Medical CenterIndustries
Featured provider
Get connected with a company for free
Tell us about your project, and we'll match you with vetted companies that meet your requirements.
Get connected with the right company for you
We'll do the work for you – finding and connecting you with service providers that meet your exact requirements.
Schedule ConsultationMost Reviewed SEO Company in California
Check out a SEO Company in California with the most new reviews in the past 12 months.
SEO Company
California
- 11 10 new reviews
- 12 10 new reviews
- 13 10 new reviews
- 14 9 new reviews
- 15 9 new reviews
