Company lists · Data refreshed September 2026

Top 25 Internal communications consultants based in the United States

Name: Internal communications consultants based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 4,599 companies tracked

RevenueBase identified 4,599 company matches for internal communications consultants associated with the United States as of September 2026 and tracks 40,834 professional contacts across them, including 10,245 with verified work emails. New York is the largest hub.

This list covers company matches for internal communications consultants 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 20, 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 20, 2026 How this list was built

4,599Companies

40,834Contacts tracked

10,245Verified emails

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The 25 largest internal communications consultants based in the United States

Ranked by team size

Top 25 of 4,599 company matches for internal communications consultants based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Ketchum	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	1,001-5,000	963 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 20, 2026 · View company records in RevenueBase
2	Zeno Group	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	501-1,000	887 contacts →
	Exact match “Zeno Group is the fiercely independent and global, integrated communications agency, born from PR.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	Porter Novelli	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	501-1,000	821 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 20, 2026 · View company records in RevenueBase
4	Ruder Finn	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	1,001-5,000	815 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 20, 2026 · View company records in RevenueBase
5	ICR	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	201-500	693 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 20, 2026 · View company records in RevenueBase
6	Prosek Partners	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	201-500	543 contacts →
	Exact match “Prosek Partners builds – and protects – the top brands in business.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	Nail Communications	Exact match	Providence, RI, United StatesHQ recorded Sep 20, 2026	n/a	315 contacts →
	Exact match “Nail Where every brand finds its fascinating.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Berlinrosen, An Orchestra Company	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	201-500	302 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 20, 2026 · View company records in RevenueBase
9	The Lede Company	Exact match	Beverly Hills, NY, United StatesHQ recorded Sep 20, 2026	51-200	247 contacts →
	Exact match “The Lede Company is a full-service strategy, communications and social impact consulting firm, specializing in corporate, entertainment, brand and nonprofit sectors.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	Joele Frank	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	201-500	243 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	Mixing Board, Powered By Axios	Exact match	San Francisco, CA, United StatesHQ recorded Sep 20, 2026	n/a	197 contacts →
	Exact match “Mixing Board is a community of top professionals who share insights, support each other, and seek to elevate the industry at large.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	Orchestra	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	501-1,000	166 contacts →
	Exact match “Orchestra is a strategic communications and marketing company purpose-built for a world defined by speed, fragmentation and unprecedented transparency.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	TSD Communications, INC	Exact match	Washington, United StatesHQ recorded Sep 20, 2026	51-200	166 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	SIA Addison	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	51-200	155 contacts →
	Exact match “Sia/Addison creates strategy, design and communications for the world’s most respected corporate and B2B organizations, following our distinctive strategy made visible(TM)…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	Inkhouse, An Orchestra Company	Exact match	San Francisco, CA, United StatesHQ recorded Sep 20, 2026	51-200	152 contacts →
	Exact match “A strategic communications agency, Inkhouse partners with innovators who are creating new markets or disrupting old ones-crafting stories and meeting audiences where they are.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	WFD	Exact match	Waltham, MA, United StatesHQ recorded Sep 20, 2026	11-50	143 contacts →
	Exact match “At WFD Consulting we partner with our clients to create inspiring work environments where businesses succeed and employees thrive.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	Summit Group	Exact match	Silver Spring, MD, United StatesHQ recorded Sep 20, 2026	51-200	140 contacts →
	Exact match “We partner with organizations to live their brand; to make the most of their brand's strength and move the hearts and minds of the people who matter most to them.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	The RBL Group	Exact match	Provo, UT, United StatesHQ recorded Sep 20, 2026	51-200	132 contacts →
	Exact match “The RBL Group is a consulting and development firm.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Wachsman	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	51-200	130 contacts →
	Exact match “Wachsman is a leading strategy and communications firm advising the most advanced companies in technology and financial services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	RF Binder	Exact match	New York, NY, United StatesHQ recorded Sep 20, 2026	51-200	122 contacts →
	Exact match “RF\|Binder is a fully integrated communications agency and consultancy that aligns communications and business strategy to achieve results.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	The Zimmerman Agency	Exact match	Tallahassee, FL, United StatesHQ recorded Sep 20, 2026	51-200	112 contacts →
	Exact match “The Zimmerman Agency is a hyper-integrated marketing communications company providing a significant depth of services including strategic planning, creative + media development…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22	Narrative Strategies	Exact match	Washington, DC, United StatesHQ recorded Sep 20, 2026	51-200	111 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 20, 2026 · View company records in RevenueBase
23	Partnercomm, INC	Exact match	Arlington, TX, United StatesHQ recorded Sep 20, 2026	51-200	110 contacts →
	Exact match “At PartnerComm, employee communication isn’t just part of what we do, it’s all we do.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24	Lambert	Exact match	Grand Rapids, MI, United StatesHQ recorded Sep 20, 2026	51-200	99 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 20, 2026 · View company records in RevenueBase
25	Stop At Nothing, INC	Exact match	Jacksonville, FL, United StatesHQ recorded Sep 20, 2026	11-50	97 contacts →
	Exact match “Stop At Nothing positively impacts company productivity, results, and the bottom line by improving employee engagement, creativity, and innovation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “internal communications consultants”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 4,599 internal communications consultants based in the United States

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Internal communications consultants based in the United States at a glance

As of Sep 20, 2026

25.1%Verified-email coverage

8.9Average contacts per company

1-10Median size (employees)

7.8%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

3,943

11-50

565

51-200

201-500

501-1,000

1,001-5,000

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 4,599 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 “internal communications consultants” 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 10,245 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 20, 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.

Internal communications consultants 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 “internal communications consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many internal communications consultants are there based in the United States?

RevenueBase identified 4,599 company matches for internal communications consultants 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?

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

Which city has the most internal communications consultants?

New York leads with 361 company records, followed by Washington (205) and Chicago (158).

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 10,245 professional contacts with verified work emails tracked across these 4,599 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 20, 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.