Company lists · Data refreshed September 2026

Top 25 Public relations firms worldwide

Name: Public relations firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 11,722 companies tracked

RevenueBase identified 11,722 public relations firms worldwide as of September 2026 and tracks 96,090 professional contacts across them, including 31,047 with verified work emails and 18,055 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers public relations firms worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 5, 2026. Country and city lists for public relations firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

11,722Companies

96,090Contacts tracked

31,047Verified emails

18,055Mobile numbers

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The 25 largest public relations firms worldwide

Ranked by team size

Top 25 of 11,722 public relations firms worldwide, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to public relations firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Edelman	Indirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	5,001-10,000	6,242 contacts →
	Indirect evidence “Edelman is a global communications firm that partners with businesses and organizations to evolve, promote and protect their brands and reputations.” Source: RevenueBase Database · checked Sep 5, 2026
2	Adfactors PR	Strong evidence	Mumbai, IndiaHQ checked Sep 5, 2026	1,001-5,000	1,920 contacts →
	Strong evidence “Adfactors PR, founded in 1997, is India's largest Public Relations firm.” Source: RevenueBase Database · checked Sep 5, 2026
3	Insights Success Media	Indirect evidence	Dublin, OH, United StatesHQ checked Sep 5, 2026	201-500	628 contacts →
	Indirect evidence “Insights Success Media is a global powerhouse for business media and the benchmark for corporate supremacy elevating brands and fueling business growth.” Source: RevenueBase Database · checked Sep 5, 2026
4	Atrevia	Indirect evidence	Madrid, SpainHQ checked Sep 5, 2026	501-1,000	623 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 5, 2026
5	Prosek Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	543 contacts →
	Indirect evidence “Prosek Partners builds – and protects – the top brands in business.” Source: RevenueBase Database · checked Sep 5, 2026
6	Hunter	Indirect evidence	New York, United StatesHQ checked Sep 5, 2026	201-500	482 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 5, 2026
7	MSL India	Strong evidence	Mumbai, IndiaHQ checked Sep 5, 2026	501-1,000	469 contacts →
	Strong evidence “MSL is Publicis Groupe’s public relations and integrated communications network, one of the world’s largest.” Source: RevenueBase Database · checked Sep 5, 2026
8	Purple	Indirect evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	449 contacts →
	Indirect evidence “Purple is independent in philosophy, attitude and operation –offering a boutique in-house approach, the strategic requirements of each client are individually tailored from the…” Source: RevenueBase Database · checked Sep 5, 2026
9	Concept PR India LTD	Strong evidence	Mumbai, IndiaHQ checked Sep 5, 2026	501-1,000	444 contacts →
	Strong evidence “CONCEPT PR – is one of India's premier, full service Public Relations company with a strong presence across India.” Source: RevenueBase Database · checked Sep 5, 2026
10	5wpr	Indirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	397 contacts →
	Indirect evidence “5WPR is one of the largest independently owned PR and digital marketing agencies in the US.” Source: RevenueBase Database · checked Sep 5, 2026
11	Mikeworldwide	Indirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	51-200	381 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 5, 2026
12	DKC	Strong evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	349 contacts →
	Strong evidence “DKC is a full service public relations, marketing and government affairs firm and part of the Acceleration Community of Companies, Based in New York City, and with offices in Los…” Source: RevenueBase Database · checked Sep 5, 2026
13	Berlinrosen, An Orchestra Company	Indirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	302 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 5, 2026
14	Premier	Indirect evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	272 contacts →
	Indirect evidence “Creative communications for entertainment, arts and culture.” Source: RevenueBase Database · checked Sep 5, 2026
15	VERO	Indirect evidence	Singapore, VietnamHQ checked Sep 5, 2026	201-500	267 contacts →
	Indirect evidence “Vero is an award-winning strategic communications consultancy, advising some of Southeast Asia’s leading brands, corporations, and non-profit organizations.” Source: RevenueBase Database · checked Sep 5, 2026
16	V360 Group	Indirect evidence	Okhla, IndiaHQ checked Sep 5, 2026	201-500	267 contacts →
	Indirect evidence “Value 360 Communications is India’s first PR Company with a focussed approach for early stage business.” Source: RevenueBase Database · checked Sep 5, 2026
17	CLD PR & Experiential Productions	Strong evidence	Los Angeles, United StatesHQ checked Sep 5, 2026	n/a	256 contacts →
	Strong evidence “CLD PR is a full-service public relations agency, focusing most heavily on celebrity, media, and influencer placement along with brand development and event production.” Source: RevenueBase Database · checked Sep 5, 2026
18	National Public Relations	Strong evidence	Montreal, QC, CanadaHQ checked Sep 5, 2026	201-500	255 contacts →
	Strong evidence “NATIONAL Public Relations provides creative communications solutions that move people in thought and actions.” Source: RevenueBase Database · checked Sep 5, 2026
19	H&m Communications	Indirect evidence	West Hollywood, CA, United StatesHQ checked Sep 5, 2026	n/a	245 contacts →
	Indirect evidence “One of the Holmes Report’s top Consumer PR Agencies in North America, H+M Communications is an independent Hispanic and woman-owned, award winning full-service, marketing and…” Source: RevenueBase Database · checked Sep 5, 2026
20	Ideal Axicom	Indirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	201-500	242 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 5, 2026
21	Autumn Communications	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	51-200	238 contacts →
	Strong evidence “Autumn Communications is a full-service public relations and marketing firm with offices in New York City and Los Angeles.” Source: RevenueBase Database · checked Sep 5, 2026
22	Máquina	Indirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	201-500	232 contacts →
	Indirect evidence “A MÁQUINA é uma agência completa de Relações Públicas especializada em construir e fortalecer a reputação de empresas, marcas e líderes.” Source: RevenueBase Database · checked Sep 5, 2026
23	LPM Comunicação	Strong evidence	Lisboa, PortugalHQ checked Sep 5, 2026	51-200	232 contacts →
	Strong evidence “LPM is the leading Communication and Public Relations consultancy in Portugal.” Source: RevenueBase Database · checked Sep 5, 2026
24	SKDK	Strong evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	220 contacts →
	Strong evidence “SKDK provides strategic advice, public relations, crisis communications, advertising, direct mail, and research to national and international companies, advocacy organizations…” Source: RevenueBase Database · checked Sep 5, 2026
25	CDN Comunicação	Indirect evidence	São Paulo, BrazilHQ checked Sep 5, 2026	201-500	209 contacts →
	Indirect evidence “Somos “The PR PowerHouse”, uma verdadeira potência em PR e todas as suas disciplinas.” Source: RevenueBase Database · checked Sep 5, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: public relations firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names public relations firms.
Partial evidence: Its own public description names part of public relations firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name public relations firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 11,722 public relations firms worldwide

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Public relations firms worldwide at a glance

As of Sep 5, 2026

32.3%Verified-email coverage

18.8%Mobile-number coverage

8.2Average contacts per company

1-10Median size (employees)

4.5%Largest-city concentration · London

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

8,758

11-50

2,583

51-200

254

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among public relations firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: 42 countries, largest first: the United States, the United Kingdom, India, France, Brazil, Germany, Canada, Australia, Italy, Spain and 32 more. Country and city lists for public relations firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “public relations firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names public relations firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among public relations firms, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 31,047 across the full list. 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 between September 5, 2026 and September 14, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Public relations firms by location

99 lists · largest first

Every Public relations firms 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names public relations firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many public relations firms are there worldwide?

RevenueBase identified 11,722 public relations firms worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Edelman, headquartered in New York, tops this list with the largest team on record.

Which country has the most public relations firms?

The United States leads with 4,732 companies, followed by the United Kingdom (1,276) and India (692). Every public relations firms list by country and city is linked on this page.

Which city has the most public relations firms?

London leads with 523 headquartered companies, followed by New York (504) and Los Angeles (304).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 31,047 verified decision-maker contacts tracked across these 11,722 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 5, 2026 and September 14, 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 Smart Search, 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.