Company lists · Data refreshed September 2026

Top 25 Account marketing companies worldwide

RevenueBase identified 32,223 account marketing companies worldwide as of September 2026 and tracks 248,477 professional contacts across them, including 51,012 with verified work emails. The United States is the largest market and London the largest hub.

This list covers account marketing companies 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 account marketing companies 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 21, 2026 86% judged on-target in blind review
32,223Companies
248,477Contacts tracked
51,012Verified emails
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The 25 largest account marketing companies worldwide

Ranked by team size
Top 25 of 32,223 account marketing companies worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to account marketing companies: 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 evidenceNew York, NY, United StatesHQ checked Sep 21, 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 21, 2026
2Indirect evidenceVancouver, WA, United StatesHQ checked Sep 21, 20261,001-5,0004,029 contacts →

Indirect evidence

“ZoomInfo (NASDAQ: GTM) is the go-to-market platform that helps businesses find, acquire and grow their customers.”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 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 21, 2026
4Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 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 21, 2026
5Indirect evidenceBoston, United StatesHQ checked Sep 21, 20261,001-5,0001,087 contacts →

Indirect evidence

“With proprietary data and omni-channel activation like events, content, programmatic and chat, we cut through the noise to reach entire buyer groups, driving engagement and impact…”

Source: RevenueBase Database · checked Sep 21, 2026
6Partial evidenceKozhikode, IndiaHQ checked Sep 21, 2026n/a989 contacts →

Partial evidence

“We're not that yet another, ordinary marketing agency!”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidencePune, IndiaHQ checked Sep 21, 2026501-1,000967 contacts →

Partial evidence

“MachBizz is a mission itself with a strong urge to accomplish its vision of B2B Digital Marketing and lead generation.”

Source: RevenueBase Database · checked Sep 21, 2026
8Partial evidenceMumbai, IndiaHQ checked Sep 21, 20261,001-5,000963 contacts →

Partial evidence

“Madison World, for the last 36 years has been helping clients solve their marketing challenges and generate sustainable profits.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceLake Oswego, OR, United StatesHQ checked Sep 21, 2026501-1,000899 contacts →

Indirect evidence

“Logical Position (LP) is an Inc.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 21, 20261,001-5,000866 contacts →

Indirect evidence

“Neil Patel has been recognized by the Wall Street Journal, Forbes, and the United Nations, to name a few, as one of the most influential and successful marketers and entrepreneurs…”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceSydney, AustraliaHQ checked Sep 21, 20261,001-5,000860 contacts →

Partial evidence

“IVE Group is Australia’s largest diversified marketing company.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceCaracas, VenezuelaHQ checked Sep 21, 20261,001-5,000816 contacts →

Indirect evidence

“Responsable de actividades de Mercadeo, Publicidad, Comunicaciones Corporativas, Calidad y Gestión Comercial de la Red de 122 agencias a Nivel Nacional.”

Source: RevenueBase Database · checked Sep 21, 2026
13Partial evidenceBoca Raton, FL, United StatesHQ checked Sep 21, 20261,001-5,000796 contacts →

Partial evidence

“Demand Excellence Delivered We are INFUSE, a global B2B demand and revenue marketing performance company.”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 2026501-1,000740 contacts →

Indirect evidence

“Data Driven.”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceMiami, FL, United StatesHQ checked Sep 21, 2026501-1,000696 contacts →

Indirect evidence

“SCI was merged and sold to WPP in 2010.”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceFort Worth, TX, United StatesHQ checked Sep 21, 2026501-1,000680 contacts →

Indirect evidence

“Simpli.fi is a real-world media platform that connects digital intent with physical movement, helping brands reach audiences in the right place, at the right moment, to drive…”

Source: RevenueBase Database · checked Sep 21, 2026
17Partial evidence서울시, South KoreaHQ checked Sep 21, 2026501-1,000635 contacts →

Partial evidence

“Handle all BTL and ATL work for both global and domestic marketing.”

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidenceIrving, TX, United StatesHQ checked Sep 21, 2026501-1,000616 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, 2026
19Partial evidenceStockholm, SwedenHQ checked Sep 21, 2026201-500535 contacts →

Partial evidence

“Precis is a modern, tech-powered digital marketing agency specialising in media buying, analytics, creative, and proprietary technology.”

Source: RevenueBase Database · checked Sep 21, 2026
20Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 2026501-1,000488 contacts →

Partial evidence

“Amsive is a data-driven performance marketing agency that enhances marketing ROI through innovative customer acquisition and engagement solutions.”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 21, 2026201-500482 contacts →

Indirect evidence

“InfoAnalytica is a B2B sales acceleration partner for mid-market and enterprise companies.”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 21, 2026501-1,000478 contacts →

Partial evidence

“About DemandShore Since 2004, we’ve been working hard to deliver value to Sales & Marketing professionals across B2B Technology companies globally.”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceWheeling, IL, United StatesHQ checked Sep 21, 2026501-1,000477 contacts →

Indirect evidence

“sg360° can help you identify and connect with your best prospects 1:1, both offline and on.”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceLa Jolla, CA, United StatesHQ checked Sep 21, 2026201-500445 contacts →

Indirect evidence

“Machintel is dedicated to delivering transformative and affordable go-to-market solutions, ensuring a strong return on investment for brands, agencies, tech platforms, and…”

Source: RevenueBase Database · checked Sep 21, 2026
25Strong evidenceHelena, AL, United StatesHQ checked Sep 21, 2026201-500442 contacts →

Strong evidence

“Mspark is a results-driven marketing partner built for accountability.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 32,223 account marketing companies worldwide

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Account marketing companies worldwide at a glance

As of Sep 21, 2026
20.5%Verified-email coverage
7.7Average contacts per company
1-10Median size (employees)
1.7%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
20,773
11-50
9,323
51-200
1,591
201-500
331
501-1,000
80
1,001-5,000
44
5,001-10,000
7
10001+
26

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 account marketing companies, 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 account marketing companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “account marketing companies”. 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 account marketing companies), 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 account marketing companies, 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, 51,012 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.

Account marketing companies by location

155 lists · largest first

Every Account marketing companies 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 account marketing companies, 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 account marketing companies are there worldwide?

RevenueBase identified 32,223 account marketing companies 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?

IPG Mediabrands, headquartered in New York, tops this list with the largest team on record.

Which country has the most account marketing companies?

The United States leads with 7,709 companies, followed by India (3,208) and the United Kingdom (1,588). Every account marketing companies list by country and city is linked on this page.

Which city has the most account marketing companies?

London leads with 549 headquartered companies, followed by New York (348) and Dubai (318).

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 51,012 verified decision-maker contacts tracked across these 32,223 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.