Marketing agencies across the U.S.
20,880 marketing agencies listed. Pick a state or one of the busiest cities.
USA Business Search lists 20,880 marketing agencies nationwide. California has the most (6,094), and the busiest cities are Manhattan, NY, Denver metro, CO, Houston, TX.
Updated October 2026Show up in Google and in AI answers, not on page three.
Eye To Ad Media builds SEO, AI search optimization and custom-coded websites for U.S. businesses. Headquartered in Denver, growing businesses worldwide.
- 5.0 on Google, 60 reviews
- 2012 founded
- Free review, no contract
By state
Busiest cities
Still comparing U.S. agencies?
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How to choose a marketing agency
- Ask who will actually do the work and how you'll see results each month.
- Be wary of anyone who guarantees rankings. No one can promise a spot in Google.
- Make sure you own your website, ad accounts and Google Business Profile, not the agency.
How U.S. businesses get found in Google and AI answers
- Claim and complete your Google Business Profile, then keep hours, photos and services current.
- Use the same business name, address and phone everywhere you are listed, including directories like this one.
- Publish pages that answer the questions customers actually ask, so ChatGPT, Gemini, Perplexity and Google AI Overviews can cite you.
- Add LocalBusiness schema, clear pricing and service pages so AI assistants and booking agents can read your details.
Learn more: SEO vs. AI search optimization · Get found on Google Maps and in AI answers · How to pick an SEO company
Common questions
How many marketing agencies are listed on USA Business Search?
20,880 across 7 states: California (6,094), Florida (4,836), Texas (3,842), New York (3,601), Colorado (1,253), Arizona (1,041), Nebraska (213).
Which cities have the most marketing agencies?
Manhattan, NY (1,912), Denver metro, CO (769), Houston, TX (684), Los Angeles, CA (662), Miami, FL (598).
How do I choose a marketing agency?
Ask who will actually do the work and how you'll see results each month. Be wary of anyone who guarantees rankings. No one can promise a spot in Google. Check the license or registration with your state or city where one is required.
How do I add or fix a listing?
Listings are free. Use Add your business, or the Claim or fix link on any listing.
What should I ask a your city marketing agency before I hire them?
Ask who will actually do the work, how they track calls and forms, and what happens to your accounts if you leave. Eye To Ad Media offers a free review of how your business shows up in Google and AI answers.
What is AI search optimization (AIO or GEO)?
It is the work of making your business easy for AI assistants like ChatGPT, Gemini and Google AI Overviews to understand, trust and recommend: consistent listings, structured data, and pages that answer real customer questions. Read SEO vs. AI search optimization.