Company lists · Data refreshed September 2026

Top 25 Comvergence billings media agencies worldwide

RevenueBase identified 37,580 comvergence billings media agencies worldwide as of September 2026 and tracks 481,880 professional contacts across them, including 132,531 with verified work emails and 89,576 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers comvergence billings media 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 24, 2026. Country and city lists for comvergence billings media 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 24, 2026 86% judged on-target in blind review
37,580Companies
481,880Contacts tracked
132,531Verified emails
89,576Mobile numbers
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The 25 largest comvergence billings media agencies worldwide

Ranked by team size
Top 25 of 37,580 comvergence billings media agencies worldwide, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to comvergence billings media 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 evidenceSussex, WI, United StatesHQ checked Sep 24, 202610001+9,567 contacts →

Indirect evidence

“Quad (NYSE: QUAD) is a global marketing experience company that helps brands make direct consumer connections, from household to in-store to online.”

Source: RevenueBase Database · checked Sep 24, 2026
2Partial evidenceLondon, United KingdomHQ checked Sep 24, 202610001+6,901 contacts →

Partial evidence

“Publicis Media harnesses the power of modern media through leading agency brands Dysrupt, Infinite Roar, Publicis Collective, Publicis Health Media, Spark Foundry, Starcom and…”

Source: RevenueBase Database · checked Sep 24, 2026
3Partial evidenceChicago, IL, United StatesHQ checked Sep 24, 20265,001-10,0005,520 contacts →

Partial evidence

“With a history that dates back over 80 years, Starcom is a global communications planning and media leader.”

Source: RevenueBase Database · checked Sep 24, 2026
4Partial evidenceNew York, NY, United StatesHQ checked Sep 24, 202610001+4,963 contacts →

Partial evidence

“IPG Mediabrands is the media and marketing solutions division of Interpublic Group (NYSE: IPG).”

Source: RevenueBase Database · checked Sep 24, 2026
5Indirect evidenceVentura, CA, United StatesHQ checked Sep 24, 20261,001-5,0004,307 contacts →

Indirect evidence

“It's more than just clicks.”

Source: RevenueBase Database · checked Sep 24, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 24, 20265,001-10,0004,133 contacts →

Indirect evidence

“Zenith is the ROI Agency.”

Source: RevenueBase Database · checked Sep 24, 2026
7Indirect evidenceBankside, GermanyHQ checked Sep 24, 20261,001-5,0004,068 contacts →

Indirect evidence

“Welcome to PHD.”

Source: RevenueBase Database · checked Sep 24, 2026
8Partial evidenceNew York, United StatesHQ checked Sep 24, 202610001+3,989 contacts →

Partial evidence

“Omnicom Media Group (OMG), the media services division of Omnicom Group Inc, delivers transformational experiences for consumers, clients, and talent.”

Source: RevenueBase Database · checked Sep 24, 2026
9Indirect evidenceNew York, NY, United StatesHQ checked Sep 24, 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 24, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 24, 20265,001-10,0003,574 contacts →

Indirect evidence

“J.”

Source: RevenueBase Database · checked Sep 24, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 24, 20265,001-10,0003,247 contacts →

Indirect evidence

“Hello.”

Source: RevenueBase Database · checked Sep 24, 2026
12Indirect evidenceNew York, NY, United StatesHQ checked Sep 24, 20265,001-10,0002,980 contacts →

Indirect evidence

“Initiative unlocks business growth for the world’s most ambitious brands.”

Source: RevenueBase Database · checked Sep 24, 2026
13Partial evidenceNY, United StatesHQ checked Sep 24, 20261,001-5,0002,822 contacts →

Partial evidence

“As one of the fastest-growing global media agency networks, Spark Foundry is not beholden to legacy.”

Source: RevenueBase Database · checked Sep 24, 2026
14Partial evidenceToronto, ON, CanadaHQ checked Sep 24, 2026n/a2,671 contacts →

Partial evidence

“Other.™ is a modern integrated media agency built for marketers who need more from their agency partner.”

Source: RevenueBase Database · checked Sep 24, 2026
15Indirect evidenceBoston, MA, United StatesHQ checked Sep 24, 20261,001-5,0002,654 contacts →

Indirect evidence

“Digitas is the Networked Experience Agency, built on the vision that we create magnetic experiences that earn the right for brands to exist in human networks.”

Source: RevenueBase Database · checked Sep 24, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 24, 20265,001-10,0002,648 contacts →

Indirect evidence

“Grey’s mission is to create Famously Effective ideas that move people, business, and the world forward-harnessing the power of creativity to solve business problems and deliver…”

Source: RevenueBase Database · checked Sep 24, 2026
17Partial evidenceNew York, NY, United StatesHQ checked Sep 24, 202610001+2,639 contacts →

Partial evidence

“OMD is the world’s largest media network, with more than people working across more than 100 countries.”

Source: RevenueBase Database · checked Sep 24, 2026
18Partial evidenceNew York, NY, United StatesHQ checked Sep 24, 20261,001-5,0002,368 contacts →

Partial evidence

“Horizon Media is a leader in driving business-based outcomes for marketers.”

Source: RevenueBase Database · checked Sep 24, 2026
19Partial evidenceLondon, United KingdomHQ checked Sep 24, 20265,001-10,0002,366 contacts →

Partial evidence

“iProspect, a dentsu company, is a leading global digital-first media agency.”

Source: RevenueBase Database · checked Sep 24, 2026
20Partial evidenceLondon, United KingdomHQ checked Sep 24, 20265,001-10,0002,182 contacts →

Partial evidence

“Carat is the world’s first media agency and is privileged to work with some of today’s most storied and innovative brands.”

Source: RevenueBase Database · checked Sep 24, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 24, 20261,001-5,0001,981 contacts →

Indirect evidence

“Our Stand Against Bland approach creates limitless possibilities, making everything we do intelligently driven, diversely courageous, business- and brand-obsessed, and dedicated…”

Source: RevenueBase Database · checked Sep 24, 2026
22Indirect evidenceNew York, NY, United StatesHQ checked Sep 24, 202610001+1,727 contacts →

Indirect evidence

“Omnicom is the world’s leading marketing and sales company, built for intelligent growth in the next era.”

Source: RevenueBase Database · checked Sep 24, 2026
23Indirect evidenceNew York, NY, United StatesHQ checked Sep 24, 20265,001-10,0001,501 contacts →

Indirect evidence

“Do Big Things”

Source: RevenueBase Database · checked Sep 24, 2026
24Partial evidenceNew York, NY, United StatesHQ checked Sep 24, 20261,001-5,0001,395 contacts →

Partial evidence

“VaynerMedia is a contemporary global creative and media agency with an expertise in driving relevance for clients and delivering impactful business results.”

Source: RevenueBase Database · checked Sep 24, 2026
25Partial evidenceNew York, NY, United StatesHQ checked Sep 24, 20261,001-5,0001,359 contacts →

Partial evidence

“Hearts & Science, an Omnicom Media Group agency, transforms data signals into meaningful connections between brands and consumers that drive exponential growth.”

Source: RevenueBase Database · checked Sep 24, 2026

Showing 25 of 37,580 comvergence billings media agencies worldwide

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Comvergence billings media agencies worldwide at a glance

As of Sep 24, 2026
27.5%Verified-email coverage
18.6%Mobile-number coverage
12.8Average contacts per company
1-10Median size (employees)
3.2%Largest-city concentration · London
Sep 24, 2026Page data refreshed

Companies by employee count

1-10
24,554
11-50
10,434
51-200
1,832
201-500
406
501-1,000
102
1,001-5,000
70
5,001-10,000
37
10001+
38

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 comvergence billings media 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
41 countries, largest first: the United States, Brazil, the United Kingdom, Germany, Spain, Canada, Mexico, France, Australia, Italy and 31 more. Country and city lists for comvergence billings media agencies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “comvergence billings media 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 comvergence billings media 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 comvergence billings media 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, 132,531 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 24, 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.

Comvergence billings media agencies by location

173 lists · largest first

Every Comvergence billings media 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 comvergence billings media 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 comvergence billings media agencies are there worldwide?

RevenueBase identified 37,580 comvergence billings media 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?

QUAD, headquartered in Sussex, tops this list with the largest team on record.

Which country has the most comvergence billings media agencies?

The United States leads with 12,250 companies, followed by Brazil (3,835) and the United Kingdom (2,833). Every comvergence billings media agencies list by country and city is linked on this page.

Which city has the most comvergence billings media agencies?

London leads with 1203 headquartered companies, followed by Sao Paulo (912) and New York (853).

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 132,531 verified decision-maker contacts tracked across these 37,580 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 24, 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.