Discover the top SEO agencies in United States. Compare services, reviews, and find the perfect agency for your business.
Santa Monica, United States
Based in Santa Monica, California, Harmonica is a small integrated marketing agency, with a team of between one and ten people, working across earned…
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Kennesaw, United States
Based in Kennesaw, Georgia, Harmony Group Atlanta operates as an Atlanta-area IT service provider working with organizations across medical offices,…
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Las Vegas, United States
Harness Consulting is a small marketing team, listed with an office in Las Vegas, Nevada and a contact address in Centerville, Utah, that focuses exc…
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Carterville, United States
Harness Digital Marketing specializes in delivering effective web marketing strategies that align with your business goals. Our experienced team focu…
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Lombard, United States
Based in Lombard, Illinois, Harp Advertising + Interactive is a small, full-service digital marketing agency serving clients across industries includ…
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Jacksonville, United States
Since 2001, Harrington Design Company has operated as a Florida branding agency based in Jacksonville, working with clients across technology, financ…
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Glastonbury, United States
Based in Glastonbury, Connecticut, Hartford Web Design works with businesses across Hartford's Capital Region and beyond, founded in 2007. The small…
View ProfileUnited States
Harvey Agency is a professional marketing agency specializing in various digital services. They focus on delivering tailored solutions to enhance onl…
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Milwaukee, United States
A small team based on North Water Street in Milwaukee, Wisconsin, Hat Stack Marketing works directly with clients rather than routing communication t…
View ProfileIndianapolis, United States
Hatch Website Design Firm specializes in creating responsive and beautiful websites tailored to enhance your business's online presence. With a focus…
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Franklin, United States
Based in Franklin, Tennessee, Hatchery is a small digital marketing agency, founded in 2013, working with a team of 1-10 people. Its client base span…
View ProfileIndianapolis, United States
Operating out of East 16th Street in Indianapolis since 2013, Hatchet Marketing was founded by Simon Andrews after he worked in both in-house and age…
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Louisville, United States
Based in Louisville, Kentucky, this agency has operated since 2009 as a full-service marketing provider serving clients across the United States rath…
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New York, United States
Operating from New York with an additional presence in Singapore, Hattan Media is a small web design team serving small and medium-sized businesses a…
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Sausalito, United States
A small creative studio with a presence in Sausalito, California, Haus Haus Design also lists locations in Los Angeles, San Francisco, Vancouver and…
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Lake Havasu City, United States
Located in Lake Havasu City, Arizona, Havasu Web Design Co. is a small website development firm operating as a subsidiary of SkyPoint Studios. The co…
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Honolulu, United States
Based in Honolulu, this agency focuses exclusively on the Hawaii market, positioning itself as a local alternative to mainland firms that take on isl…
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Honolulu, United States
Based in Honolulu, this agency works with local Hawaii businesses seeking greater visibility on search engines such as Google, Yahoo, and Bing. It op…
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Honolulu, United States
Based in Honolulu and serving businesses across Oahu and the wider Hawaii market, Hawaii Web Design Studio has been designing websites since 1996, ma…
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Downingtown, United States
Based in Downingtown, Pennsylvania, Hawk Horizon Digital is a small team of one to ten people working with businesses across e-commerce, B2C and B2B,…
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The complete migration playbook: what to freeze before launch, how to build a redirect map that actually holds, what to test on the staging site, and how to read the first eight weeks after go-live.
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How B2B search really works: bottom-of-funnel pages before blog volume, comparison and alternatives content, product-led assets, and attribution that survives a six-month cycle.
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This directory lists 13,527 agencies in United States, spread across 2,422 cities. 12,030 of them publish a direct contact (email or phone). The best-represented cities are New York (330), San Francisco (315), Los Angeles (299).
| Team size | United States | What it means |
|---|---|---|
| 1-10 | 10,059 (74%) | One contact, often the founder. Responsive, limited capacity. |
| 11-50 | 1,711 (13%) | Specialists per discipline. The most common trade-off. |
| 51-200 | 29 (0%) | Several teams, formal process, higher budgets. |
| 200+ | 129 (1%) | International structure, enterprise accounts. |
Across the 13,527 agencies in this country: SEO (97%), Web Design (66%), Social Media (51%), SEA/PPC (51%), Web Development (40%), Content Marketing (37%). SEO leads with 13,148 agencies.
Stated engagement floors in United States range from $1,000+ to $100,000+. The most common is $1,000+ (2,787 agencies). That figure is an entry floor, not a price: it says what size of engagement the agency will take on, which stays the fastest filter for ruling out the ones that do not match your scale.
The 13,527 agencies on this page are ordered by how complete their listing is, not by payment: nobody buys a position here. The information comes from each agency's own website, checked as live. An agency can claim its listing to correct or complete it.
Should you pick an agency based in United States? Proximity matters most for local SEO and the language your content is written in. Here, English and Spanish are the most declared working languages. For an international site, where the agency sits matters less than its experience in your market.
Small or large agency? 74% of agencies here have fewer than ten people, against 158 above fifty. A small team means direct access to the people doing the work; a large one absorbs heavier programmes without depending on one person.
What to check before signing? Ask for measured results on a site comparable to yours, who actually does the work, and what happens when the contract ends: deliverables and access must stay yours. An agency that will not show its method is selling a black box.
