Discover the top SEO agencies in United States. Compare services, reviews, and find the perfect agency for your business.
Huntley, United States
Based in Huntley, Illinois, this small digital marketing agency works with businesses looking to generate more leads and profit from their websites.…
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Los Angeles, United States
Operating out of Los Angeles, California, this small team of one to ten people runs SEOZila Marketing Agency, positioning its work around search engi…
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Dixon, United States
Based in Dixon, California, SEOD Digital Marketing works with small and medium-sized businesses across the Bay Area, including restaurants, dental an…
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Houston, United States
Based in Houston, Texas, SEO-Exchange is a small digital marketing team, sized at 1-10 people, working with small to large businesses seeking a searc…
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New York, United States
Based in Midtown Manhattan, this small team has operated for around ten years, working with businesses ranging from small local operations to enterpr…
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Seattle, United States
Headquartered in Seattle, Washington, with a second office in West Palm Beach, Florida, SEO.co has operated since 2010, working with both Fortune 500…
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Harrisburg, United States
Founded in 1995, SEO.com is a Harrisburg, Pennsylvania-based agency with a team of more than 200 people, positioning itself as a long-standing player…
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San Diego, United States
Based in San Diego, California, SEO.RUN (operating under the Welltek Company brand) is a small team of one to ten people offering search marketing se…
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Colorado Springs, United States
Founded in 2017 by Mark Blum, who started the company in Phoenix, Arizona before relocating headquarters to Colorado Springs, SEO249 is a small team…
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East Meadow, United States
Based in East Meadow, New York, SEO4Advisors works specifically with independent financial advisors — particularly fee-only, fee-based, and flat-fee…
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Harahan, United States
Based in Harahan, in the New Orleans area of Louisiana, SEOak is a small digital marketing agency built around search engine optimization. It works w…
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Melbourne, United States
Founded in 2011 from an office in Indian Harbour Beach, Florida, SEOAmerica Inc. now operates out of Melbourne, Florida, as a small digital marketing…
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Los Angeles, United States
Based in Los Angeles, Seoberg is a digital marketing agency working with startup, midsize and enterprise companies looking to improve their online vi…
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Chicago, United States
Based in Chicago, Illinois, seoClarity operates as a provider of a unified SEO and AEO (answer engine optimization) platform rather than a traditiona…
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Wilmington, United States
Based in Wilmington, Delaware, Seocorp is a small digital and creative marketing agency, with a team of 1-10 people, working across search, social an…
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South Daytona, United States
Based in South Daytona, Florida, this agency works with small businesses in the Daytona Beach area looking to improve local search visibility and web…
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Walpole, United States
Based in Walpole, Massachusetts, SEODriver is a small digital marketing agency focused on local search engine optimization for small businesses in th…
View ProfileBurlington, United States
Based in Burlington, Washington, SeoEnds is a small team focused on local search engine optimization for businesses aiming to improve visibility in t…
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Miami, United States
Based in Miami, Florida, SEOfly is a small search engine optimization agency serving businesses across the United States, with a stated focus on indu…
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Spanish Fork, United States
Based in Spanish Fork, Utah, SEOgame, Inc operates as a white-label SEO provider working exclusively with marketing agencies rather than end clients…
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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.
