Company lists · Data refreshed September 2026

Top 25 Trade publication outreach firms worldwide

RevenueBase identified 24,967 trade publication outreach firms worldwide as of September 2026 and tracks 177,811 professional contacts across them, including 46,958 with verified work emails. The United States is the largest market and London the largest hub.

This list covers trade publication outreach 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 22, 2026. Country and city lists for trade publication outreach 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 22, 2026 86% judged on-target in blind review
24,967Companies
177,811Contacts tracked
46,958Verified emails
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The 25 largest trade publication outreach firms worldwide

Ranked by team size
Top 25 of 24,967 trade publication outreach firms worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to trade publication outreach 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMumbai, IndiaHQ checked Sep 22, 20261,001-5,0001,920 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 2026501-1,000887 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceSwedenHQ checked Sep 22, 2026n/a678 contacts →

Indirect evidence

“FRAU offers strategic PR and project management.”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceDublin, OH, United StatesHQ checked Sep 22, 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 22, 2026
5Indirect evidenceMadrid, SpainHQ checked Sep 22, 2026501-1,000623 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceMiguel Hidalgo, MexicoHQ checked Sep 22, 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 22, 2026
7Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 2026201-500543 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceNew York, United StatesHQ checked Sep 22, 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 22, 2026
9Indirect evidenceMumbai, IndiaHQ checked Sep 22, 2026501-1,000469 contacts →

Indirect evidence

“MSL is Publicis Groupe’s public relations and integrated communications network, one of the world’s largest.”

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceNew Delhi, IndiaHQ checked Sep 22, 2026201-500457 contacts →

Indirect evidence

“About Avian We.”

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 22, 202651-200449 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 22, 2026
12Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 22, 2026201-500441 contacts →

Indirect evidence

“Defining communications broadly to include digital, content marketing, thought leadership as well as traditional PR, The Hoffman Agency knows how to differentiate brands and…”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 2026201-500397 contacts →

Indirect evidence

“5WPR is one of the largest independently owned PR and digital marketing agencies in the US.”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 202651-200381 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 22, 2026
15Indirect evidenceEast Sussex, United KingdomHQ checked Sep 22, 2026n/a367 contacts →

Indirect evidence

“HSL is a hard-working and creative PR and marketing communications agency.”

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceMunich, GermanyHQ checked Sep 22, 2026501-1,000366 contacts →

Indirect evidence

“AVIAREPS is the world’s leading international representation, marketing and communications company for aviation, tourism, hospitality, and food and beverage brands.”

Source: RevenueBase Database · checked Sep 22, 2026
17Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 2026201-500349 contacts →

Indirect 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 22, 2026
18Indirect evidenceGurgaon, IndiaHQ checked Sep 22, 202651-200306 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 22, 2026201-500302 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 22, 2026
20Indirect evidenceSão Paulo E Rio De Janeiro, BrazilHQ checked Sep 22, 2026201-500282 contacts →

Indirect evidence

“Set up in 1996, Approach is directed by three partners with experience and credibility in the communication market.”

Source: RevenueBase Database · checked Sep 22, 2026
21Indirect evidenceGerakas, GreeceHQ checked Sep 22, 2026201-500276 contacts →

Indirect evidence

“Ogilvy Greece is a group of 400 professionals passionate about advertising, public relations, technology and social platforms.”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceLondon, United KingdomHQ checked Sep 22, 202651-200272 contacts →

Indirect evidence

“Creative communications for entertainment, arts and culture.”

Source: RevenueBase Database · checked Sep 22, 2026
23Indirect evidenceOkhla, IndiaHQ checked Sep 22, 2026201-500267 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 22, 2026
24Indirect evidenceSpainHQ checked Sep 22, 202610001+264 contacts →

Indirect evidence

“Departamento de Comunicación Externa”

Source: RevenueBase Database · checked Sep 22, 2026
25Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 22, 2026201-500257 contacts →

Indirect evidence

“Hotwire Global is the preeminent tech PR, communications, and marketing consultancy.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 24,967 trade publication outreach firms worldwide

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Trade publication outreach firms worldwide at a glance

As of Sep 22, 2026
26.4%Verified-email coverage
7.1Average contacts per company
1-10Median size (employees)
3.2%Largest-city concentration · London
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
18,789
11-50
5,340
51-200
623
201-500
109
501-1,000
25
1,001-5,000
11
5,001-10,000
5
10001+
8

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 trade publication outreach 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
Every country. Country and city lists for trade publication outreach firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “trade publication outreach 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 trade publication outreach 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 trade publication outreach 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, 46,958 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 22, 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.

Trade publication outreach firms by location

120 lists · largest first

Every Trade publication outreach 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 trade publication outreach 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 trade publication outreach firms are there worldwide?

RevenueBase identified 24,967 trade publication outreach 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?

Adfactors PR, headquartered in Mumbai, tops this list with the largest team on record.

Which country has the most trade publication outreach firms?

The United States leads with 7,698 companies, followed by the United Kingdom (2,152) and India (983). Every trade publication outreach firms list by country and city is linked on this page.

Which city has the most trade publication outreach firms?

London leads with 788 headquartered companies, followed by New York (681) and Los Angeles (412).

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 46,958 verified decision-maker contacts tracked across these 24,967 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 22, 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.