Company lists · Data refreshed September 2026

Top 25 Stakeholder communication firms based in the United States

RevenueBase identified 1,845 company matches for stakeholder communication firms associated with the United States as of September 2026 and tracks 20,071 professional contacts across them, including 8,157 with verified work emails. New York is the largest hub.

This list covers company matches for stakeholder communication firms 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 22, 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 22, 2026 How this list was built
1,845Companies
20,071Contacts tracked
8,157Verified emails
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The 25 largest stakeholder communication firms based in the United States

Ranked by team size
Top 25 of 1,845 company matches for stakeholder communication firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 22, 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 22, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
3Exact matchNew York, NY, United StatesHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Sep 22, 2026201-500543 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Sep 22, 2026201-500349 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchNew York, NY, United StatesHQ recorded Sep 22, 2026201-500302 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchParsippany, NJ, United StatesHQ recorded Sep 22, 202651-200195 contacts →

Exact match

“Every day is Independence Day at Coyne PR.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchNew York, United StatesHQ recorded Sep 22, 2026501-1,000166 contacts →

Exact match

“We are now FGS Global.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchLos Angeles, CA, United StatesHQ recorded Sep 22, 202651-200154 contacts →

Exact match

“Established in 1993, ID is the largest independently owned full-service communications agency in the U.S, with offices in Los Angeles and New York.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchRaleigh, NC, United StatesHQ recorded Sep 22, 2026n/a134 contacts →

Exact match

“The Results Company creates winning communications and outreach strategies for businesses and organizations at the local, state and federal levels.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Sep 22, 202651-200122 contacts →

Exact match

“Infinite Global is an award-winning strategic communications firm specializing in PR, Content & Campaigns, Digital, and Crisis & Litigation.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchBuffalo, NY, United StatesHQ recorded Sep 22, 202651-200118 contacts →

Exact match

“The Martin Group is a leading integrated communications firm headquartered in downtown Buffalo with offices in New York City, Rochester and Albany, NY.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchDearborn, MI, United StatesHQ recorded Sep 22, 202651-200113 contacts →

Exact match

“Campbell Marketing and Communications, founded in 1982 as Campbell & Co, is located in Dearborn, Mich.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchWashington, DC, United StatesHQ recorded Sep 22, 202651-200111 contacts →

Exact match

“Narrative is a full-service strategic communications firm creatively solving today’s most demanding reputational and public affairs challenges.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchArdmore, PA, United StatesHQ recorded Sep 22, 202651-200109 contacts →

Exact match

“At Gregory FCA, we’re a 30-year success story, forged by exceeding client expectations during every engagement.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchNew York, United StatesHQ recorded Sep 22, 202611-50102 contacts →

Exact match

“KCSA is a fully integrated communications agency specializing in public relations, shareholder communications and social media, with expertise in cannabis, financial and…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchSan Francisco, CA, United StatesHQ recorded Sep 22, 202651-200101 contacts →

Exact match

“Kearns & West is a collaboration and strategic communications firm founded in 1984.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchMiami, FL, United StatesHQ recorded Sep 22, 202651-200100 contacts →

Exact match

“rbb is a leading integrated communications agency that champions breakout brands.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchWashington, DC, United StatesHQ recorded Sep 22, 202651-20099 contacts →

Exact match

“It starts with a goal: yours.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchGrand Rapids, MI, United StatesHQ recorded Sep 22, 202651-20099 contacts →

Exact match

“Founded in 1998, Lambert is a strategic communications and advisory firm specializing in public relations, investor relations and integrated marketing.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchSan Francisco, CA, United StatesHQ recorded Sep 22, 202651-20096 contacts →

Exact match

“We help category-defining brands make their mark through hard-working, creative campaigns that change perceptions and spark action.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchScotts Valley, CA, United StatesHQ recorded Sep 22, 202651-20089 contacts →

Exact match

“ROI Communication is a 100% employee-owned internal communications company focused on helping the world’s leading businesses achieve their very best through inspired employee…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchNew York, NY, United StatesHQ recorded Sep 22, 202651-20086 contacts →

Exact match

“H/Advisors Abernathy is a trusted strategic communications advisor that partners with companies, investment firms and other organizations to engage core stakeholders as they…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchWashington, DC, United StatesHQ recorded Sep 22, 202651-20085 contacts →

Exact match

“We work with corporations, trade associations, and nonprofits to change hearts and minds, move public opinion, and help brands connect to the public conscience in a rapidly…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 1,845 stakeholder communication firms based in the United States

See the full list, filter by size, metro and specialty, and access 8,157 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Stakeholder communication firms based in the United States at a glance

As of Sep 22, 2026
40.6%Verified-email coverage
10.9Average contacts per company
1-10Median size (employees)
11.0%Largest-city concentration · New York
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
1,376
11-50
404
51-200
48
201-500
6
501-1,000
5
1,001-5,000
4
5,001-10,000
1

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 1,845 companies.

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 “stakeholder communication firms” 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 8,157 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 22, 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.

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 “stakeholder communication firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many stakeholder communication firms are there based in the United States?

RevenueBase identified 1,845 company matches for stakeholder communication firms 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?

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

Which city has the most stakeholder communication firms?

New York leads with 203 company records, followed by Washington (90) and Los Angeles (73).

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 8,157 professional contacts with verified work emails tracked across these 1,845 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 22, 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.