Company lists · Data refreshed September 2026

Top 25 Full-service public relations agencies based in the United States

RevenueBase identified 6,440 full-service public relations agencies headquartered in the United States as of September 2026 and tracks 75,181 professional contacts across them, including 28,136 with verified work emails. New York is the largest hub.

This list covers full-service public relations agencies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review
6,440Companies
75,181Contacts tracked
28,136Verified emails
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The 25 largest full-service public relations agencies based in the United States

Ranked by team size
Top 25 of 6,440 full-service public relations agencies based in the United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to full-service public relations agencies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 20265,001-10,0006,242 contacts →

Indirect evidence

“Edelman is a global communications firm that partners with businesses and organizations to evolve, promote and protect their brands and reputations.”

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 20261,001-5,0004,191 contacts →

Indirect evidence

“Weber Shandwick is the earned-first global communications agency.”

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceNY, United StatesHQ checked Sep 14, 20261,001-5,0001,450 contacts →

Indirect evidence

“Hill & Knowlton is a strategic and creative partner to drive breakthrough opportunities for growth and value creation, advance corporate strategy, and build reputation capital and…”

Source: RevenueBase Database · checked Sep 14, 2026
4Partial evidenceBaltimore, MD, United StatesHQ checked Sep 14, 2026n/a1,255 contacts →

Partial evidence

“TBC is an independently owned, full-service branding, advertising and strategic communications agency with headquarters in Baltimore, Maryland, USA.”

Source: RevenueBase Database · checked Sep 14, 2026
5Strong evidenceChicago, IL, United StatesHQ checked Sep 14, 20261,001-5,0001,151 contacts →

Strong evidence

“We are a global public relations agency that helps companies create change that matters.”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 2026501-1,000887 contacts →

Indirect evidence

“Zeno Group is the fiercely independent and global, integrated communications agency, born from PR.”

Source: RevenueBase Database · checked Sep 14, 2026
7Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 20261,001-5,000815 contacts →

Indirect evidence

“Ruder Finn is one of the world’s largest global independent integrated marketing and communications agencies, leading at the intersection of technology, human creativity, and…”

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceSouthfield, MI, United StatesHQ checked Sep 14, 2026501-1,000708 contacts →

Indirect evidence

“Doner unlocks all the tools of Modern marketing to build lasting connections with every day, Main Street consumers.”

Source: RevenueBase Database · checked Sep 14, 2026
9Partial evidenceMalvern, PA, United StatesHQ checked Sep 14, 2026501-1,000572 contacts →

Partial evidence

“Stream Companies is a full service advertising agency that specializes in launching, positioning, and long term management of brands on full service contracts and a…”

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 2026201-500543 contacts →

Indirect evidence

“Prosek Partners builds – and protects – the top brands in business.”

Source: RevenueBase Database · checked Sep 14, 2026
11Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 14, 2026n/a527 contacts →

Indirect evidence

“Everywhere Agency is now a part of MWWPR.”

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidenceLas Vegas, NV, United StatesHQ checked Sep 14, 2026201-500493 contacts →

Indirect evidence

“R&R partners isn’t our name, it’s our promise.”

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 14, 2026201-500441 contacts →

Indirect evidence

“Defining communications broadly to include digital, content marketing, thought leadership as well as traditional PR, The Hoffman Agency knows how to differentiate brands and…”

Source: RevenueBase Database · checked Sep 14, 2026
14Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 2026201-500397 contacts →

Indirect evidence

“5WPR is one of the largest independently owned PR and digital marketing agencies in the US.”

Source: RevenueBase Database · checked Sep 14, 2026
15Strong evidenceNew York, NY, United StatesHQ checked Sep 14, 2026201-500349 contacts →

Strong evidence

“DKC is a full service public relations, marketing and government affairs firm and part of the Acceleration Community of Companies, Based in New York City, and with offices in Los…”

Source: RevenueBase Database · checked Sep 14, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 2026201-500302 contacts →

Indirect evidence

“Built to operate with the speed and intensity of a political campaign, BerlinRosen takes a 360-degree approach to communications, activating audiences and elevating story above…”

Source: RevenueBase Database · checked Sep 14, 2026
17Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 2026n/a291 contacts →

Indirect evidence

“Factory PR is a leading communications agency that uniquely intersects style and technology.”

Source: RevenueBase Database · checked Sep 14, 2026
18Strong evidenceLos Angeles, United StatesHQ checked Sep 14, 2026n/a256 contacts →

Strong evidence

“CLD PR is a full-service public relations agency, focusing most heavily on celebrity, media, and influencer placement along with brand development and event production.”

Source: RevenueBase Database · checked Sep 14, 2026
19Partial evidenceWest Hollywood, CA, United StatesHQ checked Sep 14, 2026n/a245 contacts →

Partial evidence

“One of the Holmes Report’s top Consumer PR Agencies in North America, H+M Communications is an independent Hispanic and woman-owned, award winning full-service, marketing and…”

Source: RevenueBase Database · checked Sep 14, 2026
20Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 2026201-500243 contacts →

Indirect evidence

“Joele Frank is a strategic communications firm that enables clients to take control in key moments of challenge and opportunity, from bet-the-company situations to the ongoing…”

Source: RevenueBase Database · checked Sep 14, 2026
21Strong evidenceLos Angeles, CA, United StatesHQ checked Sep 14, 202651-200238 contacts →

Strong evidence

“Autumn Communications is a full-service public relations and marketing firm with offices in New York City and Los Angeles.”

Source: RevenueBase Database · checked Sep 14, 2026
22Partial evidenceDetroit, MI, United StatesHQ checked Sep 14, 2026n/a221 contacts →

Partial evidence

“Centrally located in Metro Detroit, TVS Communication Solutions is the perfect full service communications agency providing companies and individuals the means to communicate…”

Source: RevenueBase Database · checked Sep 14, 2026
23Strong evidenceWashington, DC, United StatesHQ checked Sep 14, 202651-200220 contacts →

Strong evidence

“SKDK provides strategic advice, public relations, crisis communications, advertising, direct mail, and research to national and international companies, advocacy organizations…”

Source: RevenueBase Database · checked Sep 14, 2026
24Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 202651-200206 contacts →

Indirect evidence

“DeVries Global is a boutique agency with a global view that lives at the intersection of life and style.”

Source: RevenueBase Database · checked Sep 14, 2026
25Indirect evidenceProvidence, RI, United StatesHQ checked Sep 14, 2026n/a206 contacts →

Indirect evidence

“Increasing visibility, relevance and value.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 6,440 full-service public relations agencies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 28,136 reachable decision-makers.

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Full-service public relations agencies based in the United States at a glance

As of Sep 14, 2026
37.4%Verified-email coverage
11.7Average contacts per company
1-10Median size (employees)
10.7%Largest-city concentration · New York
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
4,765
11-50
1,452
51-200
172
201-500
27
501-1,000
11
1,001-5,000
8
5,001-10,000
2

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 6,440 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among full-service public relations agencies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “full-service public relations agencies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names full-service public relations agencies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among full-service public relations agencies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 28,136 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 14, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Full-service public relations agencies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names full-service public relations agencies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many full-service public relations agencies are there based in the United States?

RevenueBase identified 6,440 full-service public relations agencies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Edelman, headquartered in New York, tops this list with the largest team on record.

Which city has the most full-service public relations agencies?

New York leads with 692 headquartered companies, followed by Los Angeles (372) and Washington (173).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 28,136 verified decision-maker contacts tracked across these 6,440 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 14, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.