Top 100 SEO Companies in the United States

CR Software Solutions is a software agency founded in 2018 in Canton, Mich. with more than two members. They offer web development, web design, and custom software development services to clients in the industries of business services, health care, and consumer products.

Semify, LLC is a SEO company. They offer search engine optimization, content marketing, and pay per click and were established in 2008. Their midsize team is located in Rochester, New York.

WP Suites is a full-service digital marketing & SEO agency based in Elizabethtown, Ky. The agency, founded in 2016, has a team of less than ten that provides SEO, digital strategy, conversion optimization, web development, and e-commerce development services. WP Suites serves small and mid-market companies in various industries that include health care & medical, business services, and legal.

3PRIME LLC is a web design firm that is located in Hamden, Conn. Founded in 2005, 3PRIME LLC's team of 14 employees specialize in web and software development. The firm also offers SEO services to its clients.

Leverable SEO is an SEO consultancy based in Atlanta. The consultancy, founded in 2005, has a team of less than ten that provides SEO services to small and midmarket companies.

Website development company Brilliance was founded in 2020. Their small team is located in Portland, Oregon and provides Web Development, Search Engine Optimization, Pay Per Click, Web Design, and more.

Located in Texas, Leverage Marketing has a team of 35+ professionals who focus on inbound marketing. Other services include SEO, PPC, content and social media marketing, and digital strategy. They work with small and mid-market businesses.

WolfPack Advising is a social media marketing agency. The small Melbourne, Florida-based team provides social media marketing, email marketing, search engine optimization, pay per click, and more. The agency was established in 2019.

51blocks is a Denver based web marketing agency. They were founded in 2009 and have a team of 29 employees who specialize in SEO, web design, and advertising for small business.

Zoek is a marketing and SEO company based in Aliso Viejo, Calif. Founded in 2016, this company has a team of 20 employees. Zoek specializes in SEO and also offers services in relation to content marketing, advertising, and social media marketing for businesses of various sizes.

Founded in 2002, Wide Open Technologies is a full service digital agency. With headquarters in Wilmington, NC and an office in Asheville, NC, Wide Open Technologies prides itself on its ability to bring enterprise level technology to smaller businesses. Their team of fewer than 10 employees offer e-commerce development, custom software development, and mobile app development services.

Zen Agency is a full-service, creative & strategic, digital marketing agency based in Wyoming, Pa., with an office in Billings, Mont. The agency, founded in 2007, has a team of more than ten that provides web design, e-commerce development, digital strategy, conversion optimization, and SEO services to small and larger-sized companies and organizations in the business services, health care & medical, automotive, and other industries.

Intensify is a boutique advertising agency in Los Angeles. Founded in 2014, their 1-person team provides web design, social media marketing, digital strategy, marketing strategy, and advertising services. Most clients are small businesses.

HyperDrive Interactive is a Cincinnati-based digital marketing agency founded in 2001 with over 10 experts. They specialize in email marketing, SEO services, and digital strategy for mid-market and enterprise-level clients in the fields of arts, manufacturing, and consumer products.

Blue Yarn Media is a marketing firm founded in Seattle in 2012 with more than 10 experts. They specialize in social media marketing, SEO, and PPC solutions for clients ranging from startups to large firms in the fields of e-commerce, business services, and more.

IT company eGuide Tech Allies was founded in 2016. Headquartered in Chicago, they have a team of four. They specialize in CRM consulting and SI, as well as IT strategy consulting.

Web design company Jeremy McGilvrey was founded in 2007. They are headquartered in Houston, Texas and have a small team. Jeremy McGilvrey offers web design, digital strategy, conversion optimization, ux/ui design, and more.

Website development firm Alliance Innovations is located in San Diego, California. The small agency was founded in 2019. Their team focuses on web development, digital strategy, custom software development, mobile app development, and more.

Antonym is a branding firm in New York, New York. The small team specializes in branding, marketing strategy, content writing services, content marketing, and more. The agency was established in 2019.

Green Hat Web Solutions is a small digital strategy company. Established in 2010, the team specializes in digital strategy, e-commerce development, search engine optimization, web design, and more. The agency is in Denver, Colorado.

The Karcher Group is an SEO firm headquartered in North Canton, Ohio, with additional offices in Charlotte. Founded in 1997, their main focus lines are SEO, PPC, and web design

Small digital strategy company Lake One, is based in Minneapolis, Minnesota. They focus on digital strategy, content marketing, advertising, conversion optimization, and more and were established in 2014.

Top Bros is an SEO company based in Los Angeles. Founded in 2010, their team currently consists of 2 employees. They specialize in SEO, PPC, social media marketing, and web design.

Slingfly is a small SEO agency. The Fayetteville, Arkansas-based agency was founded in 2009. Their team focuses on search engine optimization, call center services, content writing services, pay per click, and more.

Good & Gold Marketing, an email marketing company, was established in 2016. The small Portland, Oregon-based team specializes in email marketing, pay per click, search engine optimization, social media marketing, and more.

BizIQ is a SEO services firm. Established in 2012, the team specializes in search engine optimization, pay per click, social media marketing, and other digital marketing. Their midsize company is based in Phoenix, Arizona.

OHO Interactive is an interactive agency that provides web development, web design, and digital strategy services located in Somerville, Mass. Founded in 1998, they have a team of about 70 employees who support midmarket clients in a few industries: education, healthcare and medical, and nonprofit. 

WiT Group is a small advertising company. Established in 2019, the company is in Charlotte, North Carolina. Their services include advertising, branding, conversion optimization, pay per click, and more.

Located in Agoura Hills, Calif., Custom Creatives is a digital marketing company with expertise in SEO, software development, and web/graphic design. With fewer than 50 employees, they work with both big and small companies and offer a free client consultation and website audit report.

Founded in 2003, Liqui-Site is a digital marketing agency based in Hoboken, NJ. With fewer than 50 employees, they specialize in SEO, web design, email marketing, and digital advertising.