Company lists · Data refreshed September 2026

Top 25 Pr agencies worldwide

RevenueBase identified 36,625 pr agencies worldwide as of September 2026 and tracks 316,109 professional contacts across them, including 85,201 with verified work emails. The United States is the largest market and London the largest hub.

This list covers pr agencies 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 20, 2026. Country and city lists for pr agencies 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 20, 2026 86% judged on-target in blind review
36,625Companies
316,109Contacts tracked
85,201Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest pr agencies worldwide

Ranked by team size
Top 25 of 36,625 pr agencies worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to pr agencies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 20265,001-10,0006,242 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 20, 2026
2Indirect evidenceDallas, TX, United StatesHQ checked Sep 20, 2026n/a5,567 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 20261,001-5,0004,191 contacts →

Indirect evidence

“Weber Shandwick is the earned-first global communications agency.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202610001+3,874 contacts →

Indirect evidence

“McCann Worldgroup, part of the Interpublic Group (NYSE: IPG), is the irrefutable leader in the business of creativity.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceNew York, United StatesHQ checked Sep 20, 20265,001-10,0003,541 contacts →

Indirect evidence

“Burson is the global leader in communications, purpose-built to create value for our clients through reputation.”

Source: RevenueBase Database · checked Sep 20, 2026
6Strong evidenceMumbai, IndiaHQ checked Sep 20, 20261,001-5,0001,920 contacts →

Strong evidence

“Adfactors PR, founded in 1997, is India's largest Public Relations firm.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceNY, United StatesHQ checked Sep 20, 20261,001-5,0001,450 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceChicago, IL, United StatesHQ checked Sep 20, 20261,001-5,0001,151 contacts →

Indirect evidence

“We are a global public relations agency that helps companies create change that matters.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceMumbai, IndiaHQ checked Sep 20, 20261,001-5,000963 contacts →

Indirect evidence

“Madison World, for the last 36 years has been helping clients solve their marketing challenges and generate sustainable profits.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceNew York, IL, United StatesHQ checked Sep 20, 20261,001-5,000959 contacts →

Indirect evidence

“We are Notified, and your story goes here.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceHamburg, GermanyHQ checked Sep 20, 20261,001-5,000944 contacts →

Indirect evidence

“Scholz & Friends provides an all-inclusive selection of resources to assist client partners in sharing their stories and ideas.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceParis, United KingdomHQ checked Sep 20, 20261,001-5,000939 contacts →

Indirect evidence

“MSL is the most powerful influence engine for brands, companies and leaders.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 20261,001-5,000903 contacts →

Indirect evidence

“1300+ People.”

Source: RevenueBase Database · checked Sep 20, 2026
14Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 2026501-1,000887 contacts →

Strong evidence

“Zeno Group is the fiercely independent and global, integrated communications agency, born from PR.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 20261,001-5,000815 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 2026201-500693 contacts →

Indirect evidence

“ICR is a strategic communications and advisory firm that helps management teams align how they communicate with how markets think.”

Source: RevenueBase Database · checked Sep 20, 2026
17Strong evidenceSwedenHQ checked Sep 20, 2026n/a678 contacts →

Strong evidence

“FRAU offers strategic PR and project management.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceDublin, OH, United StatesHQ checked Sep 20, 2026201-500628 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 20, 2026
19Indirect evidenceMadrid, SpainHQ checked Sep 20, 2026501-1,000623 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceMiguel Hidalgo, MexicoHQ checked Sep 20, 2026201-500601 contacts →

Indirect evidence

“Was founded in 2004 between Rodrigo Peñafiel and Jaspar Eyears to fill a gap within the Mexican marketplace.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 2026201-500543 contacts →

Indirect evidence

“Prosek Partners builds – and protects – the top brands in business.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 20, 2026n/a527 contacts →

Indirect evidence

“Everywhere Agency is now a part of MWWPR.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceLas Vegas, NV, United StatesHQ checked Sep 20, 2026201-500493 contacts →

Indirect evidence

“R&R partners isn’t our name, it’s our promise.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceNew York, United StatesHQ checked Sep 20, 2026201-500482 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 20, 2026
25Indirect evidenceSão Paulo, BrazilHQ checked Sep 20, 20261,001-5,000471 contacts →

Indirect evidence

“Reputação é resultado.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 36,625 pr agencies worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 85,201 reachable decision-makers.

Free signup · no credit card

View the full list →

Pr agencies worldwide at a glance

As of Sep 20, 2026
27.0%Verified-email coverage
8.6Average contacts per company
1-10Median size (employees)
4.0%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
26,504
11-50
8,569
51-200
1,141
201-500
196
501-1,000
64
1,001-5,000
48
5,001-10,000
8
10001+
13

Email recency is reported on each country list linked below.

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 pr agencies, 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
Every country. Country and city lists for pr agencies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “pr agencies”. 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 pr agencies), 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 pr agencies, 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, 85,201 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 on September 20, 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.

Pr agencies by location

154 lists · largest first

Every Pr 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 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 pr agencies, 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 pr agencies are there worldwide?

RevenueBase identified 36,625 pr agencies 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 pr agencies?

The United States leads with 8,864 companies, followed by the United Kingdom (3,214) and India (1,533). Every pr agencies list by country and city is linked on this page.

Which city has the most pr agencies?

London leads with 1477 headquartered companies, followed by New York (1043) and Paris (615).

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 85,201 verified decision-maker contacts tracked across these 36,625 companies.

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.

Ready to reach these companies? Verified emails and direct dials for all 36,625 pr agencies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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.