Company lists · Data refreshed November 2026

Top 25 Ad campaign consultants worldwide

Name: Ad campaign consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 25,431 companies tracked

RevenueBase identified 25,431 company matches for ad campaign consultants worldwide as of November 2026 and tracks 308,374 professional contacts across them, including 73,252 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for ad campaign consultants 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 November 6, 2026. Country and city lists for ad campaign consultants 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 Nov 6, 2026 How this list was built

25,431Companies

308,374Contacts tracked

73,252Verified emails

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The 25 largest ad campaign consultants worldwide

Ranked by team size

Top 25 of 25,431 company matches for ad campaign consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Publicis Media	Exact match	London, United KingdomHQ recorded Nov 6, 2026	10001+	7,259 contacts →
	Exact match “Publicis Media harnesses the power of modern media through leading agency brands Dysrupt, Infinite Roar, Publicis Collective, Publicis Health Media, Spark Foundry, Starcom and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Starcom	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	5,001-10,000	5,745 contacts →
	Exact match “With a history that dates back over 80 years, Starcom is a global communications planning and media leader.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Zenith	Exact match	London, IL, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	4,405 contacts →
	Exact match “Zenith is the ROI Agency.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	IPG Mediabrands	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	10001+	4,396 contacts →
	Exact match “IPG Mediabrands is the media and marketing solutions division of Interpublic Group (NYSE: IPG).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	PHD	Exact match	Bankside, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	4,197 contacts →
	Exact match “Welcome to PHD.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	OTHER	Exact match	Toronto, FL, CanadaHQ recorded Nov 6, 2026	n/a	3,078 contacts →
	Exact match “Other.™ is a modern integrated media agency built for marketers who need more from their agency partner.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Spark Foundry	Exact match	NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,019 contacts →
	Exact match “As one of the fastest-growing global media agency networks, Spark Foundry is not beholden to legacy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	GREY	Exact match	New York, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,800 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Horizon Media	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,506 contacts →
	Exact match “Horizon Media is a leader in driving business-based outcomes for marketers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Omnicom Media Group	Exact match	New York, United StatesHQ recorded Nov 6, 2026	10001+	2,447 contacts →
	Exact match “Omnicom Media Group (OMG), the media services division of Omnicom Group Inc, delivers transformational experiences for consumers, clients, and talent.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Bbdo Worldwide	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,655 contacts →
	Exact match “Do Big Things” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	TBC	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	n/a	1,328 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 · Nov 6, 2026 · View company records in RevenueBase
13	Hakuhodo INC	Exact match	Minato-ku, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,310 contacts →
	Exact match “Founded in 1895, Hakuhodo Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Tinuiti	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,260 contacts →
	Exact match “Tinuiti is a media agency that not only builds brands, but architects business outcomes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Mediaocean	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,111 contacts →
	Exact match “Mediaocean is powering the future of the advertising ecosystem with technology that empowers brands and agencies to deliver impactful omnichannel marketing experiences.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Brainlabs	Exact match	New York, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,066 contacts →
	Exact match “Brainlabs is an independent, AI-native media agency built to grow client revenue and prove the impact of every dollar spent on media.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	FBIZ	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	201-500	1,009 contacts →
	Exact match “A MAIORIA DOS MANIFESTOS DE AGÊNCIA FALA SOBRE O QUE SE ACREDITA.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	IVE Group	Exact match	Sydney, AustraliaHQ recorded Nov 6, 2026	1,001-5,000	933 contacts →
	Exact match “IVE Group is Australia’s largest diversified marketing company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Smartly	Exact match	Helsinki, FinlandHQ recorded Nov 6, 2026	501-1,000	922 contacts →
	Exact match “Smartly is the AI-powered advertising technology company transforming ad experiences for brands and their consumers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Mediaplus Group	Exact match	Munich, GermanyHQ recorded Nov 6, 2026	1,001-5,000	872 contacts →
	Exact match “Mediaplus is one of Europe’s largest independent, partner-owned media agencies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Kepler	Exact match	New York, PA, United StatesHQ recorded Nov 6, 2026	501-1,000	820 contacts →
	Exact match “We’re on a mission to clarify the digital universe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Mullenlowe Lintas Group	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	201-500	809 contacts →
	Exact match “MullenLowe Lintas Group is one of India’s largest and most admired communication groups.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Vertis Communications	Exact match	Sussex, WI, United StatesHQ recorded Nov 6, 2026	10001+	710 contacts →
	Exact match “Vertis Communications was acquired by Quad/Graphics in January 2013.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Anything IS Possible	Exact match	Brighton And Hove, United KingdomHQ recorded Nov 6, 2026	n/a	672 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Ebiquity PLC	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	651 contacts →
	Exact match “Ebiquity is the independent authority in Marketing Effectiveness.” Recorded in the RevenueBase company graph · Nov 6, 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 “ad campaign consultants”. 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 25,431 ad campaign consultants worldwide

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Ad campaign consultants worldwide at a glance

As of Nov 6, 2026

23.8%Verified-email coverage

12.1Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

14,652

11-50

8,282

51-200

1,718

201-500

433

501-1,000

100

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 ad campaign consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “ad campaign consultants” 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 73,252 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 November 6, 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.

Ad campaign consultants by location

165 lists · largest first

Every Ad campaign consultants 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 “ad campaign consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ad campaign consultants are there worldwide?

RevenueBase identified 25,431 company matches for ad campaign consultants worldwide as of November 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?

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

Which country has the most ad campaign consultants?

The United States leads with 5,027 companies, followed by India (2,134) and Brazil (1,280). Every ad campaign consultants list by country and city is linked on this page.

Which city has the most ad campaign consultants?

London leads with 454 company records, followed by New York (375) and Sao Paulo (314).

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 73,252 professional contacts with verified work emails tracked across these 25,431 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 November 6, 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.