Discover the top SEO agencies in United States. Compare services, reviews, and find the perfect agency for your business.
Kirkland, United States
Based in Kirkland, Washington, Serbyte Development is a small team (1-10 people) working with businesses that need a combined web presence and growth…
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Nashville, United States
Based in Nashville, Tennessee, SERCH Mktg is a small internet marketing firm working with a mix of local and regional businesses, including dental pr…
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Brooklyn, United States
Based in Brooklyn, New York, Serial Scaling is a small, content-centric agency that works with businesses of varying sizes seeking search visibility…
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San Francisco, United States
Serious Ideas is a San Francisco-based digital marketing agency specialized in delivering innovative and data-driven marketing solutions. With a miss…
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McMinnville, United States
Based in McMinnville, Tennessee, Serious SEM is a small digital marketing team, founded in 2007, that concentrates on service-industry businesses suc…
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St. Petersburg, United States
Based in St. Petersburg, Florida, SERP Giant Business Solutions is a small digital marketing agency, founded in 2018, that works with businesses seek…
View ProfileUnited States
SERP Technologies is currently enhancing its online presence to provide a better user experience. The agency is focused on delivering innovative solu…
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Austin, United States
Based in Austin, Texas, SerpApi provides a real-time API for accessing Google search results, positioning itself for developers, data teams, and busi…
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Boston, United States
A small digital marketing agency based in Boston, Massachusetts, Serpcom describes itself as an SEO-first company built to improve online visibility,…
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Boca Raton, United States
Founded in 2014 and based in Boca Raton, Florida, SerpHaus SEO is a small team, sized one to ten people, working under founder Tom Neely. Its client…
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Clearwater, United States
Based in Clearwater, Florida, Serpwars is a small digital marketing team working with local service businesses, startups, entrepreneurs, and SMBs. Th…
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Norwalk, United States
Based in Norwalk, Connecticut, ServFrame is a small team that builds its offering specifically around photography businesses and photo studios rather…
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South Jordan, United States
Based in South Jordan, Utah, Service Hero is a small marketing agency, founded in 2018, that works specifically with home-service companies such as H…
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Scottsdale, United States
Based in Scottsdale, Arizona, ServiceLegend is a small marketing agency built specifically around home service contractors. Its client base spans tra…
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United States
Services Time is an ID Design and Online Media Company specializing in maximizing business benefits through targeted Internet Marketing, excellent de…
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Seattle, United States
Based in Seattle, Washington, Sesame Communications focuses specifically on dental, orthodontic, and specialty healthcare practices, offering marketi…
View ProfileSt. Petersburg, United States
Sesh is a St. Petersburg-based culinary destination that specializes in creating an unforgettable dining experience through the fusion of exceptional…
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Orem, United States
Based in Orem, Utah, Set Fire Creative is a small digital marketing agency organized around a client strategist model, with prospective clients direc…
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Natick, United States
Based in Natick, Massachusetts, this full-service marketing agency serves organizations across a wide range of sectors — tech startups, higher educat…
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Columbus, United States
Based in Columbus, Ohio, Sevell+Sevell, Inc. is a small web design and marketing firm operating under the name Sevell, focused on a niche client base…
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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.
