Company lists · Data refreshed November 2026

Top 25 Ad tech consultants worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 18,168 companies tracked

RevenueBase identified 18,168 company matches for ad tech consultants worldwide as of November 2026 and tracks 252,570 professional contacts across them, including 74,991 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for ad tech 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 tech 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

18,168Companies

252,570Contacts tracked

74,991Verified emails

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The 25 largest ad tech consultants worldwide

Ranked by team size

Top 25 of 18,168 company matches for ad tech 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	Epsilon	Exact match	Irving, United StatesHQ recorded Nov 6, 2026	5,001-10,000	10,260 contacts →
	Exact match “Epsilon is a global leader in data and identity with deep expertise in digital media, clean rooms, customer data platforms, loyalty and marketing services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	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
3	The Trade Desk	Exact match	Ventura, United StatesHQ recorded Nov 6, 2026	1,001-5,000	4,635 contacts →
	Exact match “It's more than just clicks.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	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
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	DEPT	Exact match	Amsterdam, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	3,470 contacts →
	Exact match “DEPT® is a Growth Invention company built to help the world’s most ambitious brands grow faster.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Zeta Global	Exact match	New York, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,122 contacts →
	Exact match “At Zeta Global (NYSE: ZETA), we help enterprise brands and agencies Achieve the Impossible™ with superintelligent marketing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Publicis	Exact match	New York, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,785 contacts →
	Exact match “You can either adapt to change, ignore it or lead it.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	ALEPH	Exact match	Miami, FL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,131 contacts →
	Exact match “Aleph is a global leader accelerating digital advertising, and fintech solutions across more than 130 high-growth markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	media.net	Exact match	Dubai, United Arab EmiratesHQ recorded Nov 6, 2026	1,001-5,000	2,118 contacts →
	Exact match “Media.net is an independent advertising technology platform that helps publishers, advertisers, and agencies achieve measurable outcomes across all formats and mediums.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Taboola	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,038 contacts →
	Exact match “Taboola empowers businesses to grow through performance advertising technology that goes beyond search and social and delivers measurable outcomes at scale.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Credera	Exact match	Addison, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,991 contacts →
	Exact match “Credera empowers the world’s leading brands to navigate the complexities of data, technology, and marketing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	TEADS	Exact match	New York, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,867 contacts →
	Exact match “Teads Holding Co.(“Teads”)(Nasdaq: TEAD) is a leading omnichannel advertising platform focused on driving outcomes for brand and performance advertisers across screens.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Freewheel	Exact match	New York, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,355 contacts →
	Exact match “FreeWheel’s TV and video advertising technology is built for today’s ever-evolving multiscreen ecosystem.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Pubmatic	Exact match	Redwood City, United StatesHQ recorded Nov 6, 2026	501-1,000	1,285 contacts →
	Exact match “PubMatic is the leading AI-powered ad tech company delivering digital advertising performance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	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
17	Magnite	Exact match	United StatesHQ recorded Nov 6, 2026	501-1,000	953 contacts →
	Exact match “We’re Magnite (NASDAQ: MGNI), the world’s largest independent sell-side advertising company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	SEM	Exact match	Sariyer, TürkiyeHQ recorded Nov 6, 2026	n/a	930 contacts →
	Exact match “SEM is a global new generation consumer marketing and technologies brand where we combine growth consultancy, advanced analytics, digital marketing and technology services under…” 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	KARGO	Exact match	New York, CA, United StatesHQ recorded Nov 6, 2026	201-500	904 contacts →
	Exact match “Kargo creates memorable experiences for advertisers that go beyond the first impression to captivate consumer attention.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	BASIS	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	501-1,000	901 contacts →
	Exact match “Basis is a global provider of media automation and programmatic advertising software and services for enterprises.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Adform	Exact match	Copenhagen, DenmarkHQ recorded Nov 6, 2026	501-1,000	881 contacts →
	Exact match “Adform is the most powerful and safe media buying platform in the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	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
24	Nexxen	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	823 contacts →
	Exact match “Nexxen is the advertising platform that delivers full-funnel performance powered by unique data and media.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Equativ	Exact match	Paris, FranceHQ recorded Nov 6, 2026	501-1,000	766 contacts →
	Exact match “Equativ is a leading independent media platform that empowers advertisers and publishers to achieve real outcomes across the entire digital ecosystem.” 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 tech 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 18,168 ad tech consultants worldwide

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Ad tech consultants worldwide at a glance

As of Nov 6, 2026

29.7%Verified-email coverage

13.9Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

10,781

11-50

5,471

51-200

1,343

201-500

327

501-1,000

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 tech consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “ad tech 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 74,991 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 tech consultants by location

127 lists · largest first

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

How many ad tech consultants are there worldwide?

RevenueBase identified 18,168 company matches for ad tech 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?

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

Which country has the most ad tech consultants?

The United States leads with 3,486 companies, followed by India (1,567) and Brazil (908). Every ad tech consultants list by country and city is linked on this page.

Which city has the most ad tech consultants?

London leads with 454 company records, followed by New York (383) and Sao Paulo (287).

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 74,991 professional contacts with verified work emails tracked across these 18,168 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.