Company lists · Data refreshed November 2026

Top 25 Corporate communications companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 29,783 companies tracked

RevenueBase identified 29,783 company matches for corporate communications companies worldwide as of November 2026 and tracks 246,716 professional contacts across them, including 67,091 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for corporate 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 corporate 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

29,783Companies

246,716Contacts tracked

67,091Verified emails

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The 25 largest corporate communications companies worldwide

Ranked by team size

Top 25 of 29,783 company matches for corporate 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	Edelman	Exact match	New York, GA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	6,721 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 · Nov 6, 2026 · View company records in RevenueBase
2	Adfactors PR	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	1,001-5,000	2,056 contacts →
	Exact match “Adfactors PR, founded in 1997, is India's largest Public Relations firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	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
4	Hill & Knowlton	Exact match	Edmonton, AB, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,430 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 · Nov 6, 2026 · View company records in RevenueBase
5	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
6	MSL Global	Exact match	Paris, FranceHQ recorded Nov 6, 2026	1,001-5,000	1,079 contacts →
	Exact match “MSL is the most powerful influence engine for brands, companies and leaders, a global public relations and strategic communications agency, part of Publicis Groupe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Nike Communications, INC	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	n/a	960 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 · Nov 6, 2026 · View company records in RevenueBase
8	Scholz & Friends	Exact match	Hamburg, GermanyHQ recorded Nov 6, 2026	1,001-5,000	954 contacts →
	Exact match “Scholz & Friends provides an all-inclusive selection of resources to assist client partners in sharing their stories and ideas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	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
10	Finn Partners	Exact match	New York, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	939 contacts →
	Exact match “1300+ People.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	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
12	Porter Novelli	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	784 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 · Nov 6, 2026 · View company records in RevenueBase
13	ICR	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	201-500	773 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 · Nov 6, 2026 · View company records in RevenueBase
14	Atrevia	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	501-1,000	656 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	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
16	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
17	JKL	Exact match	Stockholm, SwedenHQ recorded Nov 6, 2026	51-200	508 contacts →
	Exact match “JKL is now Kekst CNC Stockholm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Inpress Porter Novelli	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	201-500	507 contacts →
	Exact match “A InPress Porter Novelli é uma agência de comunicação full service, com mais de 150 clientes nos segmentos corporativo, consumo, mídia e entretenimento, saúde, tecnologia…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Hunter	Exact match	New York, CA, United StatesHQ recorded Nov 6, 2026	201-500	504 contacts →
	Exact match “HUNTER is an award-winning, integrated marketing communications firm with offices in New York, Los Angeles, Chicago, and London and partnerships that extend our reach globally.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Avian We	Exact match	New Delhi, IndiaHQ recorded Nov 6, 2026	201-500	488 contacts →
	Exact match “About Avian We.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	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
22	BCW Global	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	444 contacts →
	Exact match “BCW is the global communications agency built to move people.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Ogilvyes	Exact match	SpainHQ recorded Nov 6, 2026	201-500	434 contacts →
	Exact match “Ogilvy desarrolla campañas de comunicación icónicas y rompedoras desde el día en que su fundador, David Ogilvy, abrió su agencia en 1948.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	CFC BIG Ideas	Exact match	Kyiv, UkraineHQ recorded Nov 6, 2026	n/a	415 contacts →
	Exact match “СFC Big Ideas is a communications agency specializing in international projects, government relations & PR.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Mikeworldwide	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	51-200	403 contacts →
	Exact match “MWW is one of the world’s leading independent, integrated PR agencies with offices across the US and UK, and a global network of partners.” 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 “corporate 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 29,783 corporate communications companies worldwide

See the full list, filter by size, metro and specialty, and access 67,091 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Corporate communications companies worldwide at a glance

As of Nov 6, 2026

27.2%Verified-email coverage

8.3Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

21,810

11-50

6,654

51-200

923

201-500

162

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 corporate communications companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “corporate 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 67,091 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.

Corporate communications companies by location

181 lists · largest first

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

How many corporate communications companies are there worldwide?

RevenueBase identified 29,783 company matches for corporate 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?

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

Which country has the most corporate communications companies?

The United States leads with 5,897 companies, followed by Brazil (1,987) and the United Kingdom (1,698). Every corporate communications companies list by country and city is linked on this page.

Which city has the most corporate communications companies?

London leads with 703 company records, followed by Sao Paulo (616) and New York (543).

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 67,091 professional contacts with verified work emails tracked across these 29,783 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.