Company lists · Data refreshed September 2026
Top 25 IT B2B pr agencies worldwide
RevenueBase identified 15,142 IT B2B pr agencies worldwide as of September 2026 and tracks 126,859 professional contacts across them, including 40,012 with verified work emails. The United States is the largest market and London the largest hub.
This list covers IT B2B 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 21, 2026. Country and city lists for IT B2B 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.
The 25 largest IT B2B pr agencies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,191 contacts → | ||||
Indirect evidence “Weber Shandwick is the earned-first global communications agency.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,920 contacts → | ||||
Partial evidence “Adfactors PR, founded in 1997, is India's largest Public Relations firm.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 887 contacts → | ||||
Partial evidence “Zeno Group is the fiercely independent and global, integrated communications agency, born from PR.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 815 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 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 638 contacts → | ||||
Partial evidence “We’re a 28 years old B2B marketing agency.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 623 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 616 contacts → | ||||
Partial evidence “Multiview is a B2B digital marketing agency helping associations and businesses reach, engage and grow their most valued relationships.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 543 contacts → | ||||
Indirect evidence “Prosek Partners builds – and protects – the top brands in business.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 495 contacts → | ||||
Partial evidence “We get it.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 457 contacts → | ||||
Indirect evidence “About Avian We.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 449 contacts → | ||||
Indirect evidence “BCW is the global communications agency built to move people.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 441 contacts → | ||||
Indirect evidence “Agência de comunicação full service com mais de 150 clientes nos segmentos corporativo, consumo, mídia e entretenimento, saúde, tecnologia e telecomunicações, dentre outros.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 441 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 414 contacts → | ||||
Partial evidence “СFC Big Ideas is a communications agency specializing in international projects, government relations & PR.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 397 contacts → | ||||
Partial evidence “5WPR is one of the largest independently owned PR and digital marketing agencies in the US.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 381 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 367 contacts → | ||||
Partial evidence “HSL is a hard-working and creative PR and marketing communications agency.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 349 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 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 306 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 297 contacts → | ||||
Indirect evidence “Mower is an independent, women-led and employee-owned marketing, advertising and public relations agency with over 50 years of experience helping brands connect with their…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 290 contacts → | ||||
Partial evidence “An integrated B2B agency of strategists and execution specialists, Marketing Works is outcomes driven, strategy focused and values-based.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 282 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 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 278 contacts → | ||||
Partial evidence “1105 Media, Inc, is a leading business-to-business (B2B) services provider whose sole mission is to help our customers grow their business.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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: IT B2B pr agencies. 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 IT B2B pr agencies.
- Partial evidence
- Its own public description names part of IT B2B pr agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT B2B pr agencies. 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 15,142 IT B2B pr agencies worldwide
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IT B2B pr agencies worldwide at a glance
As of Sep 21, 2026Companies by employee count
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 IT B2B 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 IT B2B pr agencies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “IT B2B 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 IT B2B 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 IT B2B 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, 40,012 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 21, 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.
IT B2B pr agencies by location
90 lists · largest firstEvery IT B2B pr agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- IT B2B pr agencies based in the United States3,857
- IT B2B pr agencies based in the United Kingdom1,539
- IT B2B pr agencies based in Germany725
- IT B2B pr agencies based in India590
- IT B2B pr agencies based in Brazil546
- IT B2B pr agencies based in France489
- IT B2B pr agencies based in Canada353
- IT B2B pr agencies based in Australia339
- IT B2B pr agencies based in Italy270
- IT B2B pr agencies based in Spain270
- IT B2B pr agencies based in Poland192
- IT B2B pr agencies based in South Africa173
- IT B2B pr agencies based in the Netherlands173
- IT B2B pr agencies based in Mexico148
- IT B2B pr agencies based in Sweden148
- IT B2B pr agencies based in the United Arab Emirates127
- IT B2B pr agencies based in Switzerland106
- IT B2B pr agencies based in Israel95
- IT B2B pr agencies based in Türkiye93
- IT B2B pr agencies based in Austria86
- IT B2B pr agencies based in Denmark85
- IT B2B pr agencies based in Indonesia83
- IT B2B pr agencies based in Argentina82
- IT B2B pr agencies based in Romania78
- IT B2B pr agencies based in Belgium75
- IT B2B pr agencies based in Singapore74
- IT B2B pr agencies based in Ireland72
- IT B2B pr agencies based in New Zealand71
- IT B2B pr agencies based in Chile55
- IT B2B pr agencies based in Kenya55
- IT B2B pr agencies based in Portugal55
- IT B2B pr agencies based in Malaysia52
- IT B2B pr agencies based in Greece50
- IT B2B pr agencies based in Hungary48
- IT B2B pr agencies based in Colombia47
- IT B2B pr agencies based in Bulgaria43
- IT B2B pr agencies based in Japan43
- IT B2B pr agencies based in Ukraine41
- IT B2B pr agencies based in Egypt39
- IT B2B pr agencies based in Finland37
- IT B2B pr agencies based in the Philippines35
- IT B2B pr agencies based in Croatia34
- IT B2B pr agencies based in Hong Kong31
- IT B2B pr agencies based in Norway31
- IT B2B pr agencies based in Slovakia31
- IT B2B pr agencies based in Thailand29
Cities
- IT B2B pr agencies based in London, United Kingdom531
- IT B2B pr agencies based in New York, United States353
- IT B2B pr agencies based in Sao Paulo, Brazil230
- IT B2B pr agencies based in Los Angeles, United States175
- IT B2B pr agencies based in Toronto, Canada129
- IT B2B pr agencies based in San Francisco, United States112
- IT B2B pr agencies based in Chicago, United States107
- IT B2B pr agencies based in Mumbai, India87
- IT B2B pr agencies based in Berlin, Germany83
- IT B2B pr agencies based in Hamburg, Germany81
- IT B2B pr agencies based in Sydney, Australia80
- IT B2B pr agencies based in Austin, United States78
- IT B2B pr agencies based in Washington, United States78
- IT B2B pr agencies based in Boston, United States77
- IT B2B pr agencies based in Atlanta, United States72
- IT B2B pr agencies based in Miami, United States70
- IT B2B pr agencies based in Dallas, United States69
- IT B2B pr agencies based in New Delhi, India67
- IT B2B pr agencies based in Pune, India59
- IT B2B pr agencies based in Rio De Janeiro, Brazil56
- IT B2B pr agencies based in Houston, United States50
- IT B2B pr agencies based in Manchester, United Kingdom46
- IT B2B pr agencies based in San Diego, United States45
- IT B2B pr agencies based in Denver, United States42
- IT B2B pr agencies based in Seattle, United States39
- IT B2B pr agencies based in Melbourne, Australia37
- IT B2B pr agencies based in Bangalore, India35
- IT B2B pr agencies based in Minneapolis, United States35
- IT B2B pr agencies based in Philadelphia, United States33
- IT B2B pr agencies based in Phoenix, United States33
- IT B2B pr agencies based in Nashville, United States32
- IT B2B pr agencies based in Noida, India32
- IT B2B pr agencies based in Portland, United States32
- IT B2B pr agencies based in Las Vegas, United States31
- IT B2B pr agencies based in Vancouver, Canada31
- IT B2B pr agencies based in New York City, United States30
- IT B2B pr agencies based in Brisbane, Australia27
- IT B2B pr agencies based in Charlotte, United States27
- IT B2B pr agencies based in Bristol, United Kingdom26
- IT B2B pr agencies based in Columbus, United States26
- IT B2B pr agencies based in Leeds, United Kingdom26
- IT B2B pr agencies based in Munich, Germany26
- IT B2B pr agencies based in Birmingham, United Kingdom25
- IT B2B pr agencies based in Curitiba, Brazil25
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 IT B2B 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 IT B2B pr agencies are there worldwide?
RevenueBase identified 15,142 IT B2B 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?
Weber Shandwick, headquartered in New York, tops this list with the largest team on record.
Which country has the most IT B2B pr agencies?
The United States leads with 3,857 companies, followed by the United Kingdom (1,539) and Germany (725). Every IT B2B pr agencies list by country and city is linked on this page.
Which city has the most IT B2B pr agencies?
London leads with 536 headquartered companies, followed by New York (353) and Sao Paulo (230).
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 40,012 verified decision-maker contacts tracked across these 15,142 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 21, 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.