Company lists · Data refreshed November 2026

Top 25 Specialist communications agencies worldwide

Name: Specialist communications agencies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 27,865 companies tracked

RevenueBase identified 27,865 company matches for specialist communications agencies worldwide as of November 2026 and tracks 254,424 professional contacts across them, including 72,691 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for specialist communications agencies 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 specialist communications agencies 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

27,865Companies

254,424Contacts tracked

72,691Verified emails

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The 25 largest specialist communications agencies worldwide

Ranked by team size

Top 25 of 27,865 company matches for specialist communications agencies 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	Weber Shandwick	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	4,318 contacts →
	Exact match “Weber Shandwick is the earned-first global communications agency.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	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
4	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
5	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
6	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
7	TBC	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	n/a	1,328 contacts →
	Exact match “TBC is an independently owned, full-service branding, advertising and strategic communications agency with headquarters in Baltimore, Maryland, USA.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	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
9	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
10	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
11	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
12	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
13	Mullenlowe Lintas Group	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	201-500	809 contacts →
	Exact match “MullenLowe Lintas Group is one of India’s largest and most admired communication groups.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	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
15	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
16	Form Worldwide	Exact match	London, United KingdomHQ recorded Nov 6, 2026	n/a	628 contacts →
	Exact match “Form Worldwide is a London-based global marketing communications agency with a digital edge.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	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
18	R&r Partners	Exact match	Las Vegas, United StatesHQ recorded Nov 6, 2026	201-500	520 contacts →
	Exact match “R&R partners isn’t our name, it’s our promise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	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
20	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
21	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
22	22squared	Exact match	Atlanta, FL, United StatesHQ recorded Nov 6, 2026	201-500	446 contacts →
	Exact match “For over 100 years, 22squared has helped complex businesses solve their toughest challenges through insight-driven media and creative.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	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
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 “specialist communications agencies”. 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 27,865 specialist communications agencies worldwide

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Specialist communications agencies worldwide at a glance

As of Nov 6, 2026

28.6%Verified-email coverage

9.1Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

19,955

11-50

6,609

51-200

924

201-500

166

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 specialist communications agencies are linked below.
What qualifies: Company records worldwide whose business descriptions match “specialist communications agencies” 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 72,691 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.

Specialist communications agencies by location

182 lists · largest first

Every Specialist communications agencies 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 “specialist communications agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many specialist communications agencies are there worldwide?

RevenueBase identified 27,865 company matches for specialist communications agencies 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 specialist communications agencies?

The United States leads with 5,685 companies, followed by the United Kingdom (1,995) and Brazil (1,586). Every specialist communications agencies list by country and city is linked on this page.

Which city has the most specialist communications agencies?

London leads with 844 company records, followed by New York (578) and Sao Paulo (528).

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 72,691 professional contacts with verified work emails tracked across these 27,865 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.