Top 100 SEO Companies in the United States

Thrive Internet Marketing Agency is a results-driven digital marketing agency based in Dallas. Since 2005, we have been providing digital marketing consulting and management services that include web site design and development, search engine optimization (SEO), PPC management, social media marketing, conversion rate optimization (CRO), Amazon marketing services, video production, and more. 

SEO 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.

Founded in 2018, LinkGraph is a full-service digital marketing and design agency based in New York. Their team of 25+ specializes in SEO, content marketing, PPC, UX/UI design, and conversion optimization for mainly midmarket clients. 

W3 Affinity is a digital marketing agency based in Surry, Virginia, that was established in 2003. Their team of fewer than 10 employees offers SEO, digital strategy, and web design services.

Colorado SEO Pros is an SEO firm based in Golden, Colorado, with a second office in Denver. Founded in 2012, their team of around 10 employees provides SEO, PPC, and web design services.

Based in Colorado Springs, CO, Infront Webworks specializes in web design development, and hosting services. Its marketing department provides SEO, marketing, and advertising assistance. A Google Certified Partner, Infront Webworks aims to boost website traffic for small, mid-market, and enterprise businesses.

Small SEO agency RivalMind, is headquartered in St. Charles, Illinois. Established in 2012, the team focuses on search engine optimization, web development, pay per click, and social media marketing.

SEO Company Fannit is an SEO speicalist based in Everett, Wash. Founded in 2020, SEO Company Fannit has 14 employees. Services provided by SEO Company Fannit include SEO, PPC, and web design for small to mid-sized companies.

SeoProfy is an SEO firm headquartered in Wilmington, Del. Founded in 2011, they have a team of 60 employees. Their main focus lines are SEO, web development, and contact marketing

High Voltage SEO is a marketing agency founded in 2014. Based in Berlin, Germany, their team of 5 employees specializes in SEO.
 

IndeedSeo is an SEO company based in Sas Nagar, India. Founded in 2012, IndeedSeo employs around 15 professionals as it looks to provide SEO services, as well as public relations and content marketing capabilities, to its small business, midmarket, and enterprise clients alike.

HigherVisibility is a full-service online marketing agency, assisting clients with paid search campaigns, social media management, and website design. Founded in 2008 in Memphis, Tennessee, the agency focuses on acquisitions and conversions to grow revenue.

SEO Inc. is an internet marketing company based in Carlsbad, CA – right outside San Diego. With over 20 years, of experience, the team of nearly 500 employees specializes in organic SEO for small, mid-market, and enterprise businesses.

Serial Scaling is a content marketing company. They offer content marketing, pay per click, search engine optimization, conversion optimization, and more and were founded in 2019. The company is headquartered in BROOKLYN, New York.

Direction, Inc. is a digital marketing agency based in Washington D.C., with an office in Great Falls, Va. Established in 2016, Direction, Inc. has 15 employees and primarily works with small and mid-market businesses in a variety of industries. Their services include SEO, PPC, web design, content marketing, and social media marketing

GR0 is a digital marketing agency founded in 2020 in Los Angeles with over 10 employees. They provide SEO solutions to various clients.

Sixth Media is a digital marketing agency based in Eagle Mountain, Utah with more than two professionals. Since their founding in 2019, they have offered web design, SEO, and PPC solutions for small and mid-market firms in industries such as business services and health care.

Momentic is a digital marketing company based in Milwaukee. Their team of fewer than 10 serves businesses of all sizes. Founded in 2018, they specialize in SEO and digital strategy.

Summit Scout is a SEO company. They are located in Lehi, Utah and have a midsize team. Their services include search engine optimization, conversion optimization, and pay per click.

Established in 2022, Legal Guardian is a SEO services firm. The firm specializes in search engine optimization, digital strategy, and pay per click and has a small team. The firm is based in Denver, Colorado.

Sofia Digital Marketing is an advertising company established in 2014. They are based in Fort Worth, Texas and have a small team. Their services include advertising, branding, digital strategy, search engine optimization, and 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. 

Webfor is a Tigard, Oregon-based SEO agency. The small firm was founded in 2009. Their team offers search engine optimization, pay per click, and web design.

IceWeb - Web Design & SEO Company Miami, an advertising company, was established in 2013. They are located in Miami, Florida and have a small team. IceWeb - Web Design & SEO Company Miami offers advertising, branding, content marketing, e-commerce development, and more.

Vital Design is a digital creative agency headquartered in Portsmouth, N.H. with a second office in Boston. It was founded in 2001 and now has a team of 69 that offers branding, web design, SEO, content marketing, and social media marketing to mainly midmarket companies.

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.

Siege Media is a content marketing agency headquartered in Austin, Texas, with additional offices in San Diego and Los Angeles. Founded in 2012, they have a team of over 75 employees who provide content marketing and SEO services to clients in the media, advertising & marketing, and hospitality & leisure industries. 
 

This Utah-based company and its 250+ employees pride themselves on cost-effective SEO and marketing services for small to medium-sized companies. Since 2009, Boostability has helped its clients grow their businesses using the Internet in a specialized way.

Paper Box is a digital agency based in Pittsburgh, Pa. The agency, founded in 2015, has a team of less than ten that provides SEO services to small and midmarket companies and institutions in various industries.

aStash Web Design & Marketing is an SEO firm based in Fort Collins,Colo. Founded in 2018, their team of 8 serves clients in the e-commerce and retail sectors. Services include PPC and web design.