Company lists · Data refreshed September 2026

Top 25 Communications consultancies based in the United States

RevenueBase identified 10,564 company matches for communications consultancies associated with the United States as of September 2026 and tracks 125,857 professional contacts across them, including 41,700 with verified work emails and 41,141 with mobile numbers. New York is the largest hub.

This list covers company matches for communications consultancies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built
10,564Companies
125,857Contacts tracked
41,700Verified emails
41,141Mobile numbers
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The 25 largest communications consultancies based in the United States

Ranked by team size
Top 25 of 10,564 company matches for communications consultancies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNew York, NY, United StatesHQ recorded Sep 28, 20265,001-10,0006,242 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Sep 28, 20261,001-5,0004,191 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchNew York, NY, United StatesHQ recorded Sep 28, 202610001+3,874 contacts →

Exact match

“McCann Worldgroup, part of the Interpublic Group (NYSE: IPG), is the irrefutable leader in the business of creativity.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchNew York, United StatesHQ recorded Sep 28, 20265,001-10,0003,541 contacts →

Exact match

“Burson is the global leader in communications, purpose-built to create value for our clients through reputation.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Sep 28, 20261,001-5,0001,814 contacts →

Exact match

“FGS Global is the strategic leadership advisory for a complex world.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchNY, United StatesHQ recorded Sep 28, 20261,001-5,0001,450 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchBaltimore, MD, United StatesHQ recorded Sep 28, 2026n/a1,255 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchChicago, IL, United StatesHQ recorded Sep 28, 20261,001-5,0001,151 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchNew York, NY, United StatesHQ recorded Sep 28, 20261,001-5,000963 contacts →

Exact match

“We are Ketchum, a global communications consultancy fueled by empathy and intelligence – progress at work for innovation, our employees and our clients since 1923.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchNew York, NY, United StatesHQ recorded Sep 28, 20261,001-5,000903 contacts →

Exact match

“1300+ People.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026501-1,000887 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026n/a872 contacts →

Exact match

“We are a full-service communications agency behind some of the world’s most revered and iconic brands.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026501-1,000821 contacts →

Exact match

“Porter Novelli is the strategic communications company, fueled by innovation, empowering clients to do business better in an ever-changing world.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchNew York, NY, United StatesHQ recorded Sep 28, 20261,001-5,000815 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026201-500693 contacts →

Exact match

“ICR is a strategic communications and advisory firm that helps management teams align how they communicate with how markets think.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, CA, United StatesHQ recorded Sep 28, 2026501-1,000587 contacts →

Exact match

“We’re a global integrated marketing and communications consultancy dedicated to driving growth, innovation and positive change for clients, colleagues and communities.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026201-500543 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchAtlanta, GA, United StatesHQ recorded Sep 28, 2026n/a527 contacts →

Exact match

“Everywhere Agency is now a part of MWWPR.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchLas Vegas, NV, United StatesHQ recorded Sep 28, 2026201-500493 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchNew York, NY, United StatesHQ recorded Sep 28, 20261,001-5,000449 contacts →

Exact match

“BCW is the global communications agency built to move people.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchSan Jose, CA, United StatesHQ recorded Sep 28, 2026201-500441 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026501-1,000431 contacts →

Exact match

“Sodali & Co advises corporate clients worldwide as they navigate the complex dynamic of shareholder and stakeholder interests.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026201-500397 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchNew York, NY, United StatesHQ recorded Sep 28, 202651-200390 contacts →

Exact match

“Mercury is a national bipartisan government relations and strategic communications firm.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026201-500364 contacts →

Exact match

“Sunshine Sachs Morgan & Lylis is an independent, full-service firm specializing in communications and narrative strategy.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 10,564 communications consultancies based in the United States

See the full list, filter by size, metro and specialty, and access 41,700 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Communications consultancies based in the United States at a glance

As of Sep 28, 2026
33.1%Verified-email coverage
32.7%Mobile-number coverage
11.9Average contacts per company
1-10Median size (employees)
10.8%Largest-city concentration · New York
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
8,248
11-50
1,939
51-200
270
201-500
59
501-1,000
18
1,001-5,000
21
5,001-10,000
3
10001+
3

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 30.0d

Company record updated

Median 91.0d

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “communications consultancies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 41,700 professional contacts with verified work emails across the full matched dataset. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Communications consultancies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “communications consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many communications consultancies are there based in the United States?

RevenueBase identified 10,564 company matches for communications consultancies associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Edelman tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most communications consultancies?

New York leads with 1136 company records, followed by Washington (463) and Los Angeles (433).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 41,700 professional contacts with verified work emails tracked across these 10,564 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 SmartSearch, 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.