Top 100 SEO Companies in the United States

WebMechanix is a digital agency in Elkridge, Md. It was founded in 2009 and now has almost 50 employees who help mostly midmarket clients with PPC, SEO, conversion rate optimization, web development, UI/UX design, and digital strategy.

Social Market Way, a SEO company, is headquartered in Washington, District of Columbia. The small firm was founded in 2011. Their services include search engine optimization, advertising, direct marketing, social media marketing, and more.

Gravitate Design is a digital agency based in Vancouver, Wash. and founded in 1999. The team of about 10 employees specializes in web design and development, but also offers search engine optimization and content marketing.

Founded in 2008, Web Daytona is a digital marketing agency headquartered in Daytona Beach, Fla. with locations in Orlando, Fla. and Miami. They have 17 employees and specialize in SEO, digital strategy, and PPC

Local Leap Marketing is a web design and SEO company based in Allen, Texas. With additional offices in Murphy, Texas, their team of fewer than 10 also provides content and social media marketing services. They primarily serve small businesses across industries such as businesses, healthcare, and real estate. They were founded in 2002.

Heyday Marketing is a web design agency. The small team is headquartered in Coral Gables, Florida. Their services include web design, advertising, digital strategy, social media marketing, and more.

Knucklepuck is a digital marketing agency located in Arlington, Va. Founded in 2014, Knucklepuck's team of around 20 employees specializes in SEO, content marketing, and web design.  The client appreciated Knucklepuck's ability to quickly master the nuances of their industry.

FreshySites is a small web design company founded in 2011. Their services include web design and search engine optimization. The company is in Binghamton, New York; Manassas, Virginia; Scranton, Pennsylvania and Washington, District of Columbia.

SEO Idaho is a SEO agency. Founded in 2009, the agency is headquartered in Boise, Idaho. The small team provides search engine optimization, web design, and pay per click.

Expert Marketing Advisors is a small SEO services firm and website development company founded in 2017. Their services include search engine optimization and web development. The firm is based in Redwood City, California.

GrowthExpertz is a marketing agency founded in 2016 and located in San Francisco. With a team of fewer than 10 employees, they provide PR, mobile and app marketing, SEO, and PPC services.

Webaholics is a Salt Lake City-based full-service digital agency. Founded in 2016, Webaholics' 16 employees offer strategy and execution to provide comprehensive digital solutions. Webaholics provides web design, web development, mobile app development, and SEO services.

Based in Burbank, California, Giant Propeller is an advertising company. They focus on advertising, ux/ui design, AR/VR development, branding, and more and were established in 2014.

Rank Kings is a SEO company established in 2020. Their small team is located in Castle Rock, Colorado. The firm provides search engine optimization, pay per click, ecommerce marketing, and web design.

Based in Boston, KoMarketing is a B2B online marketing agency that specializes in social media, SEO, and content marketing. With fewer than 50 employees, KoMarketing works to improve client efficiency and business strategy.

Obility is a digital marketing firm based out of headquarters in Portland. Founded in 2011, the agency's team of over 30 specialists partner with to offer clients, digital strategy, and search engine optimization. 

Greenville, SC-based digital marketing agency Waypost Marketing provides a variety of marketing services to small and mid-market businesses. With a team of nearly 15 employees, Waypost Marketing has assisted with content marketing, web design, SEO, social media, and email since its founding in 2003.

Founded in 2003, New Perspective Marketing is a full-service, web design, and development company. Their team of around 50 employees is based in Worcester, Mass. They focus on web development and design and SEO.

Renaissance Marketing Agency and SEO Firm is a SEO company in Lynchburg, Virginia and Richmond, Virginia. They provide search engine optimization, pay per click, advertising, branding, and more and were launched in 2017.

Traffic Digital Agency is a full-service digital marketing and creative agency headquartered in Royal Oak, Mich. Founded in 2012, Traffic Digital Agency' team of around 35 specializes in SEO, web design, and PPC. The manufactured home company appreciated Traffic Digital Agency's responsiveness, particularly after their website began yielding a significantly higher volume of leads.

Living Proof Creative is a full-service digital marketing agency located in Austin, Texas. Founded in 2015, Living Proof Creative provides services for web design, web development, e-commerce, and digital strategy. They have about 10 employees and focus on the e-commerce sector, among other industries. 

Website development company Sanctuary - A Digital Marketing Group is based in North Canton, Ohio. The small firm was launched in 2006. Their team offers web development, search engine optimization, pay per click, advertising, and more.

Venveo is an advertising company. They are headquartered in Blacksburg, Virginia and have a small team that specializes in advertising, search engine optimization, social media marketing, web design, and more. The firm was launched in 2006.

Double Up Digital is a full-service digital marketing company based in Atlanta. They were founded in 2016 and have a team of 9 employees. They specialize in web design, digital strategy, and UX/UI design for clients of all sizes.

Pixel506 is a branding firm. Their small team is based in Escazú, Costa Rica and New York, New York. Their team specializes in branding, cloud consulting & SI, digital strategy, mobile app development, and more.

Add3 is a digital marketing agency headquartered in Seattle, Wash., with an additional office in Portland, Ore. Founded in 2010, Add3 specializes in SEO, PPC, and social media marketing with a team of around 45 employees. 

Gen3 Marketing is the largest affiliate agency in the world and was named 2022 Agency of the Year twice, both by Rakuten and CJ.  The firm has global reach with offices in Pennsylvania, California and the UK.  

Leveraging years of business strategy, relationship management expertise and data-driven capabilities, Gen3 transforms businesses by driving incremental revenue.  Founded in 2007, Gen3 is a pioneer in the industry, being named Agency of the Year 12 times, and boasting the first ever dedicated premium content team.

Cut Throat Marketing is a digital marketing agency founded in 2017 and located in Columbia, S.C. Their team of fewer than 10 employees provides digital strategy, social media marketing, SEO, PPC, and web design services.

PPC agency COSEOM was founded in 2008. The agency focuses on pay per click, search engine optimization, and social media marketing and has a small team. The agency is in San Francisco, California and Barcelona, Spain.

Founded in 2006, Logical Media Group is a full-service digital marketing agency crafting digital experiences for people and companies to transact, connect, and explore. The Chicago-based team, whose original core competency was in generating qualified website traffic through search engine marketing, with a specialization in PPC and SEO, now has specific teams tailored towards other online channels such as Amazon Advertising, social media marketing, email marketing, display advertising, and conversion rate optimization.