Top 100 SEO Companies in California

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.

Located in Castro Valley, CA, KO Websites is a marketing agency founded in 2001. It specializes in providing traditional customer service with new age marketing skills. Its approximately a dozen employees provide a variety of digital marketing services, including SEO, PPC, social media marketing, web design, digital strategy, email marketing, and conversion optimization.

Elevate My Brand(EMB), founded in 2010, works with B2B and B2C businesses using strategies that help the client achieve advertising and marketing goals. With a focus on event marketing, digital strategy, and social media marketing, a team of 9 at EMB works with clients in the business, IT, social media, and healthcare spaces.

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.

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.

DWI, a small SEO company, is located in Yerevan, Armenia and Glendale, California. They provide Search Engine Optimization and Web Development and were established in 2020.

Founded in 2017, The Agency Engine is a other digital marketing company. Based in , their small team specializes in other digital marketing.

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.

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.

AlchemyLeads is a digital marketing agency headquartered in Calabasas, Calif. They have an additional location in Middletown, Del. Since 2017, their team of about 5 has provided SEO, PPC, and content marketing services. Their clients are typically small businesses and midmarket firms in the e-commerce, automotive, and healthcare and medical industries.  

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. 

Seal Media is a studio founded in 2007 with fewer than 10 professionals. They offer video production, digital strategy, and content marketing solution from their office in Costa Mesa, Calif. They mainly work with small and mid-market businesses.

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.

Bordwalk is a branding and design firm headquartered in London. The company was founded in 2015 and their team of 5 also provides app development and UX services for its midmarket, small business, and enterprise clients. 

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.

Digital strategy company Hylink Digital was established in 1994. The midsize team offers digital strategy, mobile app development, mobile & app marketing, search engine optimization, and more. The firm is headquartered in Santa Monica, California and Kowloon, Hong Kong.

Marketing Maven is a PR company. Launched in 2009, the agency is located in Camarillo, California and New York, New York. The small team focuses on Public Relations, Market Research, Social Media Marketing, Content Marketing, and more.

Founded 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.

Hounder is a digital design and development company based in Redlands, Calif. Founded in 2016, the team of 3 specializes in web development, web design, and custom software development. 

Nomad SEO, a SEO company, is located in San Diego, California. The small team offers search engine optimization and was launched in 2017.

SEO services firm LIVID Digital Strategy Agency is based in San Diego, California and Canggu, Indonesia. The small team specializes in search engine optimization, digital strategy, and social media marketing. The agency was launched in 2018.

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.

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.

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.

LookinLA is a Los Angeles based online marketing agency. They were founded in 2017 and have a team of 4 employees. They specialize in content marketing, digit strategy and SEO. 

Founded in 2016, JetRank is a SEO agency. They are based in San Diego, California and have a small team. Their services include search engine optimization, pay per click, web design, and web development.

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. 

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.

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.

Vermillion Tech is a social media marketing agency and website development company. Their small team is headquartered in Surat, India. The firm specializes in social media marketing and web development. The firm was established in 2023.