Company lists · Data refreshed September 2026

Top 25 Cross channel marketing agencies worldwide

RevenueBase identified 137,816 cross channel marketing agencies worldwide as of September 2026 and tracks 1,082,647 professional contacts across them, including 288,927 with verified work emails and 190,820 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers cross channel marketing 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 29, 2026. Country and city lists for cross channel marketing 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 29, 2026 86% judged on-target in blind review
137,816Companies
1,082,647Contacts tracked
288,927Verified emails
190,820Mobile numbers
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The 25 largest cross channel marketing agencies worldwide

Ranked by team size
Top 25 of 137,816 cross channel marketing agencies worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to cross channel marketing 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
1Partial evidenceSussex, WI, United StatesHQ checked Sep 29, 202610001+9,567 contacts →

Partial 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 29, 2026
2Indirect evidenceUsa, FranceHQ checked Sep 29, 202610001+7,716 contacts →

Indirect evidence

“At Deloitte Digital, we connect brands with the right strategies and tools to create great impact.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026n/a5,287 contacts →

Indirect evidence

“Clinic is an independent creative agency.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceBankside, GermanyHQ checked Sep 29, 20261,001-5,0004,068 contacts →

Indirect evidence

“Welcome to PHD.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202610001+3,692 contacts →

Indirect evidence

“We discover the breakthroughs that brands need to win.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceHerentals, BelgiumHQ checked Sep 29, 20261,001-5,0003,670 contacts →

Partial evidence

“iO is an AI-native partner in marketing and technology, with experts across 12 campuses in Belgium, the Netherlands, Sweden, Denmark and Bulgaria.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 20265,001-10,0002,860 contacts →

Partial evidence

“KINESSO is the technology-driven performance marketing agency within Omnicom Media that provides actionable growth for both agency partners and clients.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceToronto, ON, CanadaHQ checked Sep 29, 2026n/a2,671 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceBoston, MA, United StatesHQ checked Sep 29, 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 29, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 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 29, 2026
11Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 20261,001-5,0002,531 contacts →

Indirect evidence

“You can either adapt to change, ignore it or lead it.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 20261,001-5,0002,368 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceLondon, United KingdomHQ checked Sep 29, 20265,001-10,0002,366 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 20261,001-5,0002,313 contacts →

Indirect evidence

“Assembly is a global omnichannel agency built for brands that want a more modern approach to building brands that perform.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 20261,001-5,0002,189 contacts →

Indirect evidence

“R/GA is an independent creative innovation company for the intelligence age.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceLondon, United KingdomHQ checked Sep 29, 20265,001-10,0002,182 contacts →

Indirect 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 29, 2026
17Partial evidenceChicago, IL, United StatesHQ checked Sep 29, 2026n/a2,182 contacts →

Partial evidence

“Marketing Werks has become Product Connections, a fully integrated engagement agency specializing in omnichannel solutions that build relationships between brands and consumers.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 29, 20261,001-5,0002,119 contacts →

Indirect evidence

“Jellyfish | Move Faster.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026n/a1,891 contacts →

Indirect evidence

“We make content more rewarding.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 20261,001-5,0001,763 contacts →

Indirect evidence

“Hi there!”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceLondon, United KingdomHQ checked Sep 29, 20261,001-5,0001,728 contacts →

Indirect evidence

“We are a global socially-led creative agency, with unrivaled social media expertise.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 202610001+1,727 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceCalgary, AB, CanadaHQ checked Sep 29, 20261,001-5,0001,682 contacts →

Indirect evidence

“We’re Critical Mass.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceGranada, MexicoHQ checked Sep 29, 2026n/a1,672 contacts →

Indirect evidence

“Tal vez algunos nos conozcan por la terraza donde muchos han venido a chelear con nosotros algún jueves.”

Source: RevenueBase Database · checked Sep 29, 2026
25Partial evidenceSan Diego, CA, United StatesHQ checked Sep 29, 2026501-1,0001,570 contacts →

Partial evidence

“Power Digital is a growth marketing firm fueled by technology and driven by a talented team of consultative marketers, creatives, analysts and technologists.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 137,816 cross channel marketing agencies worldwide

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Cross channel marketing agencies worldwide at a glance

As of Sep 29, 2026
26.7%Verified-email coverage
17.6%Mobile-number coverage
7.9Average contacts per company
1-10Median size (employees)
3.3%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
100,376
11-50
31,438
51-200
4,455
201-500
789
501-1,000
202
1,001-5,000
142
5,001-10,000
36
10001+
45

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 cross channel marketing 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
44 countries, largest first: the United States, the United Kingdom, Brazil, Canada, Australia, Germany, Spain, France, Italy, Mexico and 34 more. Country and city lists for cross channel marketing agencies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “cross channel marketing 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 cross channel marketing 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 cross channel marketing 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, 288,927 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 29, 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.

Cross channel marketing agencies by location

585 lists · largest first

Every Cross channel marketing 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 cross channel marketing 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 cross channel marketing agencies are there worldwide?

RevenueBase identified 137,816 cross channel marketing 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 cross channel marketing agencies?

The United States leads with 48,832 companies, followed by the United Kingdom (13,434) and Brazil (13,222). Every cross channel marketing agencies list by country and city is linked on this page.

Which city has the most cross channel marketing agencies?

London leads with 4595 headquartered companies, followed by Sao Paulo (3023) and New York (2660).

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 288,927 verified decision-maker contacts tracked across these 137,816 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 29, 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.