Company lists · Data refreshed September 2026

Top 25 IT B2B communications agencies worldwide

Name: IT B2B communications agencies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 45,010 companies tracked

RevenueBase identified 45,010 company matches for IT B2B communications agencies worldwide as of September 2026 and tracks 436,018 professional contacts across them, including 106,011 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for IT B2B 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 September 21, 2026. Country and city lists for IT B2B 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 Sep 21, 2026 How this list was built

45,010Companies

436,018Contacts tracked

106,011Verified emails

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The 25 largest IT B2B communications agencies worldwide

Ranked by team size

Top 25 of 45,010 company matches for IT B2B communications agencies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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	WPP	Exact match	Prague, United KingdomHQ recorded Sep 21, 2026	10001+	5,483 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Weber Shandwick	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1,001-5,000	4,191 contacts →
	Exact match “Weber Shandwick is the earned-first global communications agency.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Mccann Worldgroup	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	10001+	3,874 contacts →
	Exact match “McCann Worldgroup, part of the Interpublic Group (NYSE: IPG), is the irrefutable leader in the business of creativity.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Thompson	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	5,001-10,000	3,574 contacts →
	Exact match “J.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Xdbs Worldwide	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 21, 2026	1,001-5,000	3,498 contacts →
	Exact match “At XDBS, we primarily work with media agencies, publishers and marketing companies looking to leverage marketing automation and digital marketing capacity and capability to…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Airtel Business	Exact match	Gurgaon, IndiaHQ recorded Sep 21, 2026	10001+	2,760 contacts →
	Exact match “The B2B arm of Bharti Airtel, we are India's leading provider of secure and reliable connectivity, technology, and communications solutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Adfactors PR	Exact match	Mumbai, IndiaHQ recorded Sep 21, 2026	1,001-5,000	1,920 contacts →
	Exact match “Adfactors PR, founded in 1997, is India's largest Public Relations firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Webhelp Enterprise	Exact match	Paris, FranceHQ recorded Sep 21, 2026	10001+	1,795 contacts →
	Exact match “The Concentrix B2B sales practice is here to design, build and run projects for our clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Almacén	Exact match	Olivos, ArgentinaHQ recorded Sep 21, 2026	n/a	1,486 contacts →
	Exact match “Agencia de Publicidad fundada en 2003 por Daniel Onorato y Claudio Lucini.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Serviceplan Group	Exact match	Munich, GermanyHQ recorded Sep 21, 2026	5,001-10,000	1,298 contacts →
	Exact match “Serviceplan Group is the largest independent, partner-led agency group in Europe.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	TBC	Exact match	Baltimore, MD, United StatesHQ recorded Sep 21, 2026	n/a	1,255 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 · Sep 21, 2026 · View company records in RevenueBase
12	Hakuhodo INC	Exact match	Minato-ku, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,168 contacts →
	Exact match “Founded in 1895, Hakuhodo Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	APS Group	Exact match	Stockport, United KingdomHQ recorded Sep 21, 2026	501-1,000	1,152 contacts →
	Exact match “We’ve been delivering marketing and communications since 1961.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	GDS Group	Exact match	Bristol, United KingdomHQ recorded Sep 21, 2026	501-1,000	1,051 contacts →
	Exact match “With 30 years of expertise, GDS is your pipeline partner, offering bespoke event services that drive business outcomes.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Machbizz Marketers PVT LTD	Exact match	Pune, IndiaHQ recorded Sep 21, 2026	501-1,000	967 contacts →
	Exact match “MachBizz is a mission itself with a strong urge to accomplish its vision of B2B Digital Marketing and lead generation.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Brasil Monks	Exact match	São Paulo, BrazilHQ recorded Sep 21, 2026	1,001-5,000	963 contacts →
	Exact match “Media.Monks, the digital-first operating brand of S4Capital plc, connects content, data & digital media and technology services across one global team built from the bottom up.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Scholz & Friends	Exact match	Hamburg, GermanyHQ recorded Sep 21, 2026	1,001-5,000	944 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 · Sep 21, 2026 · View company records in RevenueBase
18	Finn Partners	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1,001-5,000	903 contacts →
	Exact match “1300+ People.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Zeno Group	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	501-1,000	887 contacts →
	Exact match “Zeno Group is the fiercely independent and global, integrated communications agency, born from PR.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Nike Communications, INC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	n/a	872 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 · Sep 21, 2026 · View company records in RevenueBase
21	IVE Group	Exact match	Sydney, AustraliaHQ recorded Sep 21, 2026	1,001-5,000	860 contacts →
	Exact match “IVE Group is Australia’s largest diversified marketing company.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Mullenlowe Lintas Group	Exact match	Mumbai, IndiaHQ recorded Sep 21, 2026	201-500	851 contacts →
	Exact match “MullenLowe Lintas Group is one of India’s largest and most admired communication groups.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Ziff Davis Performance Marketing	Exact match	Austin, TX, United StatesHQ recorded Sep 21, 2026	1,001-5,000	821 contacts →
	Exact match “ZDPM is the coming together of Salesify and DemandShore.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Ruder Finn	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1,001-5,000	815 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 · Sep 21, 2026 · View company records in RevenueBase
25	Anteriad	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	501-1,000	740 contacts →
	Exact match “Data Driven.” Recorded in the RevenueBase company graph · Sep 21, 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 “IT B2B 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 45,010 IT B2B communications agencies worldwide

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IT B2B communications agencies worldwide at a glance

As of Sep 21, 2026

24.3%Verified-email coverage

9.7Average contacts per company

1-10Median size (employees)

2.6%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

29,394

11-50

12,756

51-200

2,134

201-500

439

501-1,000

112

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 IT B2B communications agencies are linked below.
What qualifies: Company records worldwide whose business descriptions match “IT B2B 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 106,011 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 September 21, 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.

IT B2B communications agencies by location

207 lists · largest first

Every IT B2B 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 “IT B2B communications agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT B2B communications agencies are there worldwide?

RevenueBase identified 45,010 company matches for IT B2B communications agencies worldwide as of September 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?

WPP tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most IT B2B communications agencies?

The United States leads with 7,625 companies, followed by the United Kingdom (3,174) and Brazil (3,137). Every IT B2B communications agencies list by country and city is linked on this page.

Which city has the most IT B2B communications agencies?

London leads with 1150 company records, followed by Sao Paulo (875) and New York (593).

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 106,011 professional contacts with verified work emails tracked across these 45,010 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 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 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.