Top 100 SEO Companies in the United States

Digital marketing agency Rise Interactive is headquartered in Chicago. The team of nearly 275 employees specializes in SEO, PPC, social media, email, and content marketing. They were founded in 2004 and mostly work with businesses in the consumer products, healthcare, financial services, and retail industries.

In Edina, Minnesota; Monterey, California; Parsippany-Troy Hills, New Jersey and Albuquerque, New Mexico, Byte Technology is an e-commerce development firm. The small agency was launched in 2001. Their team focuses on e-commerce development, web design, web development, custom software development, and more.

Bower Web Solutions is a small web design company. The Ringwood, New Jersey-based firm was established in 1999. Their team focuses on web design.

Avidon Marketing Group is a SEO firm based in West Hollywood, Calif. Founded in 2018, their team of 8 serves clients in the legal cannabis and business services sectors. Services include content marketing and PPC.

CadenceSEO was founded in 2020 and is headquartered in Gilbert, Ariz. They have a team of around 2 employees who focus on market research, digital strategy, and SEO.

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.

South Jordan, Utah-based Be Locally SEO is a web design and digital marketing agency that was founded in 2009. The agency has 20 employees and mainly focuses on SEO but also provides web design, PPC, social media marketing, and content marketing services to clients.

Lost Search Media, a branding firm, is in Mesa, Arizona. The small team specializes in branding, content marketing, conversion optimization, digital strategy, and more and was established in 2008.

Founded in 2008, Eight Oh Two Marketing is headquartered in North Carolina with "in-house" teams all along the East coast. They are highly focused on search marketing strategies for omni-channel ecommerce brands with PPC, SEO, and content marketing services. From years of experience, they understand the importance of brand story, multi-channel attribution, competitive landscape, holistic strategy and much more. 

As a best in class provider of digital marketing for companies in the B2B industrial technology sector, Lform understands the importance of precision and consistency. Whether you are involved in engineering, manufacturing, distribution or sales, you know that innovation is only the first step. You must have the infrastructure to move a product from development to introduction and growth, the expertise to produce consistent results, and the drive to persevere no matter what obstacles you face. Lform combines creativity and technological prowess to deliver results-driven digital design and marketing solutions. From discovery to development, we maintain a laser focus on your goals. Our websites tell the story of your company and connect the organization to its ideal audience. We make it easy for customers and potential clients to learn about what you do and the products and services offered.

Zero Gravity Marketing is a full-service marketing agency located in Madison, Conn. Founded in 2013, they have 55 employees specializing in digital marketing, SEO, PPC campaign management, website design, email marketing, brand development, and social media. They work with clients in advertising, consumer products, hospitality, arts and entertainment, education, IT, and automotive.

Based in Boston, Massachusetts and Wilmington, Massachusetts, Torro Media is a SEO company. The agency specializes in search engine optimization, web design, pay per click, social media marketing, and more and is small.The agency was established in 2019.

Located in Arlington Heights, Illinois, Flair Interactive is a website development company. The agency specializes in web development, search engine optimization, content marketing, and digital strategy and is small.The agency was founded in 1995.

Launched in 2015, Hennessey Digital is a midsize SEO company. Their services include search engine optimization, pay per click, ux/ui design, content marketing, and more. The company is in Los Angeles, California.

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.

Main Street ROI is a digital marketing agency located in New York. Founded in 2010 and with over 20 members on staff, Main Street ROI offers SEO, PPC, and web design services, helping small businesses create successful digital marketing campaigns.

Founded in 2015, VEA Technologies is a digital agency based in Arvada, Colo. Their team of six specializes in SEO, web development, digital strategy, and web design for midmarket clients and small businesses. 

Momentum is a small business marketing agency located in Clinton Township, Mich. Founded in 2010, Momentum's team of around 10 employees focuses on SEO, web design, and PPC. Through its partnership with Momentum, the manufacturing client received positive feedback from customers and attracted increased website traffic. 

1Digital Agency is a digital marketing agency that was founded in 2012. Their head office is located in Philadelphia and they have another office in Quebec, Canada, totaling 28 employees. They are primarily focused on e-commerce solutions, utilizing BigCommerce, Shopify Plus, Magento, CPC, SEO and email marketing to optimize mid-market businesses.

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.

SiteCare is a web agency founded in Atlanta in 2005. Their team of no more than 50 offers web development, PPC, and SEO services for small and medium-sized firms in the fields of manufacturing, real estate, and healthcare.

Clicks and Clients, a pay per click agency, was founded in 2002. Their small team is based in Englewood, Colorado. The agency focuses on pay per click, search engine optimization, social media marketing, web development, and more.

Bastion Elevate is a marketing firm founded in Newport Beach, Calif. In 2008. With over 10 members, they specialize in PR services and social media marketing solutions for clients ranging from small firms to large enterprises in the fields of advertising, business service, and more.

Buzzworthy Studio is a digital studio based in New York. Founded in 2012, the team of 11 specializes in web design, web development and UX/UI design. They work primarily with small business clients.

Launched in 2016, Codeless is a content marketing company. The firm focuses on content marketing and marketing strategy and has a midsize team.

PROS is a marketing and technology company based in San Diego. Founded in 1996, its team of around 20 members provides web development, SEO, and e-commerce development to clients of all sizes across various industries. 

Wallaroo Media is a full-service digital marketing agency based in Provo, UT. The company has approximately 20 employees, including graphic designers, social media and content strategists, and SEO specialists. Since 2008, its distinct sense of design and visual expertise has won partnerships number of high profile clients, but the company specializes in SEO, PPC, digital strategy, conversion optimization, and content marketing. 

Advertas is a marketing firm founded in Houston in 2004 with fewer than 10 employees. They are experts in marketing strategy, branding, and UX/UI design solutions for clients ranging from small firms to large companies in the fields of energy and business services.

Plaudit Design is a full-service digital agency that was founded in 1998. With offices in both Saint Paul, Minn. and New York, Plaudit Design has a team of 12 employees that specializes in web design and development, digital strategy, and SEO. 

Noble Studios is a full-service digital agency based in Reno, Nev. Founded in 2003, their team of about 50 employees provides services to small, mid-market, and enterprise businesses. They specialize in web design, web development, SEO, PPC, and digital strategy services.