Company lists · Data refreshed September 2026

Top 25 Communications consulting companies based in the United States

Name: Communications consulting companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 5,119 companies tracked

RevenueBase identified 5,119 communications consulting companies headquartered in the United States as of September 2026 and tracks 57,523 professional contacts across them, including 18,050 with verified work emails. New York is the largest hub.

This list covers communications consulting companies 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 19, 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 19, 2026 86% judged on-target in blind review

5,119Companies

57,523Contacts tracked

18,050Verified emails

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The 25 largest communications consulting companies based in the United States

Ranked by team size

Top 25 of 5,119 communications consulting companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to communications consulting companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Edelman	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	5,001-10,000	6,242 contacts →
	Partial 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 19, 2026
2	Hill & Knowlton	Indirect evidence	NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,450 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 19, 2026
3	Zeno Group	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	501-1,000	887 contacts →
	Partial evidence “Zeno Group is the fiercely independent and global, integrated communications agency, born from PR.” Source: RevenueBase Database · checked Sep 19, 2026
4	Porter Novelli	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	501-1,000	821 contacts →
	Partial evidence “Porter Novelli is the strategic communications company, fueled by innovation, empowering clients to do business better in an ever-changing world.” Source: RevenueBase Database · checked Sep 19, 2026
5	ICR	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	201-500	693 contacts →
	Partial evidence “ICR is a strategic communications and advisory firm that helps management teams align how they communicate with how markets think.” Source: RevenueBase Database · checked Sep 19, 2026
6	Prosek Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	201-500	543 contacts →
	Indirect evidence “Prosek Partners builds – and protects – the top brands in business.” Source: RevenueBase Database · checked Sep 19, 2026
7	R&r Partners	Indirect evidence	Las Vegas, NV, United StatesHQ checked Sep 19, 2026	201-500	493 contacts →
	Indirect evidence “R&R partners isn’t our name, it’s our promise.” Source: RevenueBase Database · checked Sep 19, 2026
8	Mercury Public Affairs, LLC	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	390 contacts →
	Partial evidence “Mercury is a national bipartisan government relations and strategic communications firm.” Source: RevenueBase Database · checked Sep 19, 2026
9	DKC	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	201-500	349 contacts →
	Indirect 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 19, 2026
10	Jeffreygroup	Partial evidence	Miami, FL, United StatesHQ checked Sep 19, 2026	201-500	329 contacts →
	Partial evidence “Founded in 1993, JeffreyGroup is the leading marketing, corporate communications and public affairs consultancy focused exclusively on Latin America.” Source: RevenueBase Database · checked Sep 19, 2026
11	Berlinrosen, An Orchestra Company	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	201-500	302 contacts →
	Partial 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 19, 2026
12	Joele Frank	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	201-500	243 contacts →
	Partial 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 19, 2026
13	G&s Business Communications, A G&s Agency	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	227 contacts →
	Partial evidence “G&S Business Communications is an independent B2B and B2B2C communications agency with over 55 years of experience helping organizations navigate complexity and build momentum.” Source: RevenueBase Database · checked Sep 19, 2026
14	TVS Communication Solutions	Partial evidence	Detroit, MI, United StatesHQ checked Sep 19, 2026	n/a	221 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 19, 2026
15	SKDK	Partial evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	51-200	220 contacts →
	Partial 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 19, 2026
16	Richard Attias & Associates	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	213 contacts →
	Indirect evidence “OUR VISION: To empower governments, corporations and civil society to lead, inspire, and drive impact on a global scale.” Source: RevenueBase Database · checked Sep 19, 2026
17	Medialink	Partial evidence	Beverly Hills, CA, United StatesHQ checked Sep 19, 2026	51-200	204 contacts →
	Partial evidence “MediaLink is the leading consulting firm serving the media and marketing industry’s C-suite.” Source: RevenueBase Database · checked Sep 19, 2026
18	DCI	Partial evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	51-200	198 contacts →
	Partial evidence “DCI Group is an independent public affairs consulting firm that specializes in public relations, crisis management, grassroots engagement, and digital advocacy.” Source: RevenueBase Database · checked Sep 19, 2026
19	Coyne PR	Indirect evidence	Parsippany, NJ, United StatesHQ checked Sep 19, 2026	51-200	195 contacts →
	Indirect evidence “Every day is Independence Day at Coyne PR.” Source: RevenueBase Database · checked Sep 19, 2026
20	Orchestra	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	501-1,000	166 contacts →
	Partial evidence “Orchestra is a strategic communications and marketing company purpose-built for a world defined by speed, fragmentation and unprecedented transparency.” Source: RevenueBase Database · checked Sep 19, 2026
21	Finsbury Glover Hering	Indirect evidence	New York, United StatesHQ checked Sep 19, 2026	501-1,000	166 contacts →
	Indirect evidence “We are now FGS Global.” Source: RevenueBase Database · checked Sep 19, 2026
22	TSD Communications, INC	Indirect evidence	Washington, United StatesHQ checked Sep 19, 2026	51-200	166 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
23	Jackson Spalding	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 19, 2026	51-200	162 contacts →
	Indirect evidence “At Jackson Spalding, we love a good story.” Source: RevenueBase Database · checked Sep 19, 2026
24	Rational 360	Partial evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	51-200	161 contacts →
	Partial evidence “The Rational Way: All in Partners Rational 360 is a leading full-service strategic communications and digital agency, with offices and staff located across the country.” Source: RevenueBase Database · checked Sep 19, 2026
25	SIA Addison	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	155 contacts →
	Partial evidence “Sia/Addison creates strategy, design and communications for the world’s most respected corporate and B2B organizations, following our distinctive strategy made visible(TM)…” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: communications consulting companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names communications consulting companies.
Partial evidence: Its own public description names part of communications consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name communications consulting companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 5,119 communications consulting companies based in the United States

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Communications consulting companies based in the United States at a glance

As of Sep 19, 2026

31.4%Verified-email coverage

11.2Average contacts per company

1-10Median size (employees)

8.4%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

4,088

11-50

874

51-200

115

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 5,119 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 communications consulting companies, 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 “communications consulting companies”. 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 communications consulting companies), 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 communications consulting companies, 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, 18,050 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 19, 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.

Communications consulting companies 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 communications consulting companies, 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 communications consulting companies are there based in the United States?

RevenueBase identified 5,119 communications consulting companies 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 communications consulting companies?

New York leads with 429 headquartered companies, followed by Washington (339) and Los Angeles (177).

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 18,050 verified decision-maker contacts tracked across these 5,119 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 19, 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.