Company lists · Data refreshed November 2026

Top 25 Internal communications companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 10,021 companies tracked

RevenueBase identified 10,021 company matches for internal communications companies worldwide as of November 2026 and tracks 99,020 professional contacts across them, including 22,517 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for internal communications companies 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 November 6, 2026. Country and city lists for internal communications companies 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 Nov 6, 2026 How this list was built

10,021Companies

99,020Contacts tracked

22,517Verified emails

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The 25 largest internal communications companies worldwide

Ranked by team size

Top 25 of 10,021 company matches for internal communications companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Publicis Groupe	Exact match	Paris, FranceHQ recorded Nov 6, 2026	10001+	20,192 contacts →
	Exact match “Founded in 1926 by Marcel Bleustein-Blanchet, today Publicis Groupe is one of the largest communications groups in the world and a leader in marketing, communication, and digital…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Improfit	Exact match	Montevideo, UruguayHQ recorded Nov 6, 2026	n/a	1,851 contacts →
	Exact match “Improfit es una agencia de comunicación corporativa y organizacional fundada en en Montevideo, Uruguay.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	FSB Comunicação	Exact match	Rio De Janeiro, BrazilHQ recorded Nov 6, 2026	501-1,000	1,387 contacts →
	Exact match “FSB Comunicações is an Integrated Communications agency focused on results.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	APS Group	Exact match	Stockport, United KingdomHQ recorded Nov 6, 2026	501-1,000	1,303 contacts →
	Exact match “We’ve been delivering marketing and communications since 1961.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Ruder Finn	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	942 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 · Nov 6, 2026 · View company records in RevenueBase
6	Zeno Group	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	930 contacts →
	Exact match “Zeno Group is the fiercely independent and global, integrated communications agency, born from PR.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Prosek Partners	Exact match	New York, United StatesHQ recorded Nov 6, 2026	201-500	592 contacts →
	Exact match “Prosek Partners builds – and protects – the top brands in business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	FSB Holding	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	561 contacts →
	Exact match “Reputação é resultado.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Workshop	Exact match	Omaha, NE, United StatesHQ recorded Nov 6, 2026	51-200	509 contacts →
	Exact match “Workshop is a modern, purpose-built internal communications platform that helps teams create, send, manage, and measure employee communications in one place, starting with email…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	The Hoffman Agency	Exact match	San Jose, United StatesHQ recorded Nov 6, 2026	201-500	498 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 · Nov 6, 2026 · View company records in RevenueBase
11	Emperor	Exact match	Aldgate, United KingdomHQ recorded Nov 6, 2026	201-500	445 contacts →
	Exact match “Emperor is one of the UK's leading employee-owned creative communications agencies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	WMH Project	Exact match	Courbevoie, FranceHQ recorded Nov 6, 2026	201-500	350 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 · Nov 6, 2026 · View company records in RevenueBase
13	PR Pundit Havas RED	Exact match	Gurgaon, IndiaHQ recorded Nov 6, 2026	51-200	337 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 · Nov 6, 2026 · View company records in RevenueBase
14	DRPG	Exact match	Hartlebury, United KingdomHQ recorded Nov 6, 2026	201-500	326 contacts →
	Exact match “For over 45 years, DRPG has been delivering everything from video, events and digital right through to research, strategy and creative communications.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Kekst CNC	Exact match	Seoul, United StatesHQ recorded Nov 6, 2026	201-500	317 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 · Nov 6, 2026 · View company records in RevenueBase
16	JOE Public	Exact match	Bryanston, South AfricaHQ recorded Nov 6, 2026	201-500	301 contacts →
	Exact match “Founded in 1998 and growing into Joe Public in 2007, it is now one of the country’s leading brand and communications groups.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Vogel Communications Group Gmbh & Co. KG	Exact match	Würzburg, GermanyHQ recorded Nov 6, 2026	501-1,000	285 contacts →
	Exact match “Vogel Communications Group (VCG) ist mit 920 Mitarbeiter:innen und rund 120 Mio.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Ideal Axicom	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	201-500	250 contacts →
	Exact match “Ideal Axicom brings together a team of over 200 communications experts in Brazil to partner with companies focused on disruption – from early-stage startups to top companies…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	ESN	Exact match	Brussels, BelgiumHQ recorded Nov 6, 2026	51-200	247 contacts →
	Exact match “Established in 1986, European Service Network (ESN) is today one of the leading communications agencies and information service providers in Brussels serving private- and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	LPM Comunicação	Exact match	Lisbon, PortugalHQ recorded Nov 6, 2026	51-200	240 contacts →
	Exact match “LPM is the leading Communication and Public Relations consultancy in Portugal.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Moshi Moshi	Exact match	Bangalore, IndiaHQ recorded Nov 6, 2026	51-200	239 contacts →
	Exact match “We are not just an ad agency or a creative agency, we are a Communication Company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Alchemist Marketing & Talent Solutions	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	201-500	238 contacts →
	Exact match “Alchemist is one of the largest independent communications agency, offering integrated communication solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Kaizzen	Exact match	Delhi, IndiaHQ recorded Nov 6, 2026	51-200	234 contacts →
	Exact match “An integrated communications agency, Kaizzen, has won the top spot as one of the fastest growing PR Agency globally for the last 4 years, as per the PRovoke Global PR Agency…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Stratcomm, INC	Exact match	Framingham, MA, United StatesHQ recorded Nov 6, 2026	51-200	233 contacts →
	Exact match “People always ask, what does strategic communications mean?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Text100 NOW Archetype	Exact match	New York, United StatesHQ recorded Nov 6, 2026	501-1,000	233 contacts →
	Exact match “Text100 & Bite are now Archetype.” Recorded in the RevenueBase company graph · Nov 6, 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 companies”. 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 10,021 internal communications companies worldwide

See the full list, filter by size, metro and specialty, and access 22,517 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Internal communications companies worldwide at a glance

As of Nov 6, 2026

22.7%Verified-email coverage

9.9Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

7,588

11-50

1,992

51-200

291

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 companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “internal communications companies” 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 22,517 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 November 6, 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 companies by location

75 lists · largest first

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

How many internal communications companies are there worldwide?

RevenueBase identified 10,021 company matches for internal communications companies worldwide as of November 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?

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

Which country has the most internal communications companies?

The United States leads with 1,497 companies, followed by Brazil (733) and France (698). Every internal communications companies list by country and city is linked on this page.

Which city has the most internal communications companies?

London leads with 247 company records, followed by Sao Paulo (242) and Paris (192).

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 22,517 professional contacts with verified work emails tracked across these 10,021 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 November 6, 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.