Company lists · Data refreshed September 2026

Top 25 Internal communications consultants worldwide

Name: Internal communications consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 23,961 companies tracked

RevenueBase identified 23,961 company matches for internal communications consultants worldwide as of September 2026 and tracks 159,598 professional contacts across them, including 35,250 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for internal communications consultants worldwide, 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. Country and city lists for internal communications consultants follow the table.

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

23,961Companies

159,598Contacts tracked

35,250Verified emails

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The 25 largest internal communications consultants worldwide

Ranked by team size

Top 25 of 23,961 company matches for internal communications consultants worldwide, 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	Idol Image Consulting	Exact match	Kula, HI, TürkiyeHQ recorded Sep 20, 2026	n/a	12,976 contacts →
	Exact match “IDOL Image Consulting has developed strategies to help individuals, groups or corporate organizations face today’s challenges and fierce competition.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	FSB Comunicação	Exact match	Rio De Janeiro, BrazilHQ recorded Sep 20, 2026	501-1,000	1,277 contacts →
	Exact match “FSB Comunicações is an Integrated Communications agency focused on results.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	Ketchum	Exact match	New York City, 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
4	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
5	Conseil Départemental	Exact match	FranceHQ recorded Sep 20, 2026	n/a	873 contacts →
	Exact match “M&C Consultants est une entreprise spécialisée dans le champ du Conseil en gestion et développement de l'entreprise.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	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
7	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
8	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
9	Atrevia	Exact match	Madrid, SpainHQ recorded Sep 20, 2026	501-1,000	623 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	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
11	Steamtalmark	Exact match	Amsterdam, NetherlandsHQ recorded Sep 20, 2026	n/a	444 contacts →
	Exact match “Steam en arbeidsmarktcommunicatie.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	Emperor	Exact match	Aldgate, United KingdomHQ recorded Sep 20, 2026	201-500	415 contacts →
	Exact match “Emperor is one of the UK's leading employee-owned creative communications agencies.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	WMH Project	Exact match	Courbevoie, FranceHQ recorded Sep 20, 2026	201-500	335 contacts →
	Exact match “WMH Project est un des groupes de communication hors média leaders en France et en Europe.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	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
15	Publicis Canada	Exact match	Montreal, QC, CanadaHQ recorded Sep 20, 2026	501-1,000	311 contacts →
	Exact match “At Publicis we believe that change is shaped by those who are brave enough.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	Kekst CNC	Exact match	Paris, United StatesHQ recorded Sep 20, 2026	201-500	309 contacts →
	Exact match “Kekst CNC, the international strategic communications consultancy of Publicis Groupe, has pioneered strategic communications to help its clients achieve their most important…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	PR Pundit Havas RED	Exact match	Gurgaon, IndiaHQ recorded Sep 20, 2026	51-200	306 contacts →
	Exact match “PR Pundit Havas Red, part of the Havas Group (one of the world’s largest advertising and communication networks), is an award-winning integrated communications consultancy with a…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	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
19	Miltton	Exact match	Helsinki, FinlandHQ recorded Sep 20, 2026	201-500	269 contacts →
	Exact match “We are an explorative, dynamic and constantly curious consulting group, equipped to offer insight and inspiration to our clients in a changing world.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	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
21	Omnicom Media Group Mena	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 20, 2026	501-1,000	247 contacts →
	Exact match “Our agencies provide strategic communication and media consultancy services to leading brands in Middle East and North Africa.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22	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
23	SEC Newgate Italia	Exact match	Milano, ItalyHQ recorded Sep 20, 2026	51-200	236 contacts →
	Exact match “Al cuore di ogni organizzazione ci sono le sue relazioni: collaboratori, clienti, filiera, territorio, istituzioni… Perché sono gli "altri" i terminali del suo agire e i…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24	Kreab Worldwide	Exact match	Norrmalm, SwedenHQ recorded Sep 20, 2026	501-1,000	235 contacts →
	Exact match “With 50 years of experience in strategic communications, we are proud to say that we have played an integral part in shaping the business landscape as we know it today.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25	LPM Comunicação	Exact match	Lisboa, PortugalHQ recorded Sep 20, 2026	51-200	232 contacts →
	Exact match “LPM is the leading Communication and Public Relations consultancy in Portugal.” 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 23,961 internal communications consultants worldwide

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Internal communications consultants worldwide at a glance

As of Sep 20, 2026

22.1%Verified-email coverage

6.7Average contacts per company

1-10Median size (employees)

2.7%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

19,712

11-50

3,568

51-200

487

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for internal communications consultants are linked below.
What qualifies: Company records worldwide 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. 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 35,250 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 location

100 lists · largest first

Every Internal communications consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 worldwide?

RevenueBase identified 23,961 company matches for internal communications consultants worldwide 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?

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

Which country has the most internal communications consultants?

The United States leads with 4,599 companies, followed by France (1,809) and the United Kingdom (1,601). Every internal communications consultants list by country and city is linked on this page.

Which city has the most internal communications consultants?

London leads with 640 company records, followed by Paris (534) and Sao Paulo (411).

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 35,250 professional contacts with verified work emails tracked across these 23,961 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.