Top 100 SEO Companies in California

Inseev Interactive is a marketing firm located in San Diego, Calif. and founded in 2013. The firm has about 50 employees. Inseev Interactive specializes in search engine optimization, but also offers pay-per-click services. Many of the firm's clients are midmarket businesses in consumer products industries.

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. 
 

Lockedown Design & SEO is a digital agency in Sacramento, Calif. Founded in 2012, they’re a freelancer who serves small businesses in the manufacturing and business sectors. Services include SEO, web design, and content marketing.

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.

Directive Consulting is a performance marketing agency headquartered in Irvine, California. Founded in 2014, the team of about 75 employees specializes in Paid Media, SEO, Performance Creative, GTM Strategy, and Revenue Operations.

SLT Consulting is a SEO services firm. They are based in New York, New York and Los Angeles, California and have a small team. The agency offers Search Engine Optimization, Social Media Marketing, Pay Per Click, Branding, and more.

Slam Media Lab is a small Walnut Creek, California-based SEO services firm. Their services include search engine optimization, content marketing, and web design.

Socratik is an SEO agency founded in San Diego in 2018 with fewer than 10 people. They are experts in SEO and PPC solutions for clients ranging from small businesses to large firms in the fields of e-commerce, healthcare, and hospitality.

KlientBoost is a digital advertising and PPC management company headquartered in Costa Mesa, Calif. Founded in 2015, the company has a team of 64 people who exclusively provide PPC, CRO, and social media marketing services. Their clients are mid-market businesses, but they work with some small and enterprise businesses. The businesses they serve are mainly in the business services and e-commerce industries. 
 

Single Grain is a full-service digital marketing agency with close to 30 employees. They are headquartered in Los Angeles and have an office in San Francisco. The agency helps companies grow their business by providing them with SEO, PPC, conversion optimization, and digital strategy services.

Founded in 2001, Scorpion is a marketing firm based in Valencia, CA. The agency and its 750+ employees work with different-sized clients on their digital strategy, SEO, and conversion optimization.

Digitawise is a design and development company that specializes in e-commerce products using WooCommerce, BigCommerce, and 3dcart. Headquartered in Varna, Bulgaria with a satellite campus in Los Angeles, Digitawise has a small team of eight employees. They have worked with mid-market and small businesses since 2016. Services include web design, e-commerce development, SEO, and social media marketing.

Bryt Designs is a website development company located in Long Beach, California. The agency specializes in web development, search engine optimization, web design, e-commerce development, and more and has a small team.The agency was founded in 2014.

eMaximize is a digital marketing agency based in Manhattan Beach, Calif. With fewer than 10 employees, the agency has specialized in SEO, social media marketing, branding, and more since 2008. They primarily serve small to mid-sized businesses alike in the hospitality, consumer products, and healthcare fields.

Softception is a SEO services firm in Fresno, California. Launched in 2015, the small team provides search engine optimization, web development, pay per click, social media marketing, and more.

Three29 is a digital marketing agency with over 10 employees based in Sacramento, Calif. Founded in 2010, Three29 primarily offers web design, mobile app development, and digital strategy services to brands across the country.

Tinuiti (formerly Elite SEM) is a digital and search marketing agency based in New York and founded in 2004. With over 400 employees, they have additional offices in Philadelphia, Atlanta, Los Angeles, Boston, San Francisco, Fort Lauderdale, Fla., Chattanooga, Tenn., and San Rafael, Calif.  They specialize in conversion optimization, media planning and buying, and SEO. 

Milyon Digital is a SEO agency founded in 2022. The agency provides search engine optimization, branding, digital strategy, social media marketing, and more and has a small team.

Runningfish Web Design & Digital Marketing is an SEO firm based in San Diego, Calif. Founded in 2003, their team of 7 serves clients in the hospitality, legal, and utility sectors. Services include social media marketing and web design.

Coastal Web Solutions, a small web design company, is headquartered in Oceanside, California. They specialize in web design, web development, e-commerce development, mobile app development, and more and were established in 2022.

SeedX Inc. is an award-winning digital marketing and growth agency headquartered in Los Angeles and Austin. They were founded in 2015, and the team of 45 specializes in omnichannel marketing, paid media, and scalable growth strategy. They primarily focus on e-commerce, technology, and multi-faceted campaigns and growth projects.

Conversion optimization company My Creative Mark was launched in 2014. They are headquartered in Pasadena, California and have a small team. Their services include conversion optimization, digital strategy, search engine optimization, web design, and more.

CSTMR is a digital marketing firm that is located in Austin, Texas. The team of about 6 employees has been specializing in web design and development since the firm was founded in 2014. CSTMR also offers UI/UX design services to its clients.  

10 Plus Brand, Inc., an advertising company, was established in 2011. Their small team is located in Lafayette, California. The company focuses on advertising, branding, logo, video production, and more.

PX Media is a boutique marketing firm based in Pasadena, Calif., with satellite offices in Los Angeles and San Diego, Calif. Founded in 2001, PX Media has fewer than 5 employees. The firm specializes in web development and SEO services.

Vonnda is a San Francisco-based web agency founded in 2010. Their team of 10–20 employees provides web development, web design, and e-commerce design. They also conduct SEO and are proficient in Magento. 

Founded in 2011, Spectrum Group Online is a digital marketing agency that prides itself on transparency and effective strategies. Based in San Francisco, its 8 person team provides  SEO, PPC, web design, social media, and content marketing solutions to their small business customers.

Radd Interactive is a technical SEO and PPC agency based in San Diego. This company was founded in 2012 and has 50 employees. Services provided by Radd Interactive are exclusively focused on SEO and PPC.

Elevated Internet Marketing is a SEO services firm. They offer search engine optimization, pay per click, web design, ux/ui design, and more and were founded in 2012. Their small team is Carlsbad, California-based.

Brenton Way is a digital marketing agency based in Woodland Hills, Calif. Founded in 2017, Brenton Way's team of 7 employees provides a variety of different services such as SEO, PPC, social media marketing, and PR.