Company lists · Data refreshed September 2026

Top 25 Ad operations consulting firms worldwide

Name: Ad operations consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 40,235 companies tracked

RevenueBase identified 40,235 company matches for ad operations consulting firms worldwide as of September 2026 and tracks 412,583 professional contacts across them, including 109,950 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for ad operations consulting firms 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 September 27, 2026. Country and city lists for ad operations consulting firms 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 Sep 27, 2026 How this list was built

40,235Companies

412,583Contacts tracked

109,950Verified emails

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The 25 largest ad operations consulting firms worldwide

Ranked by team size

Top 25 of 40,235 company matches for ad operations consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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, TX, United StatesHQ recorded Sep 27, 2026	5,001-10,000	9,953 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 · Sep 27, 2026 · View company records in RevenueBase
2	Publicis Media	Exact match	London, United KingdomHQ recorded Sep 27, 2026	10001+	6,901 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 · Sep 27, 2026 · View company records in RevenueBase
3	The Trade Desk	Exact match	Ventura, CA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	4,307 contacts →
	Exact match “It's more than just clicks.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4	Zenith	Exact match	London, United KingdomHQ recorded Sep 27, 2026	5,001-10,000	4,133 contacts →
	Exact match “Zenith is the ROI Agency.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	PHD	Exact match	Bankside, GermanyHQ recorded Sep 27, 2026	1,001-5,000	4,068 contacts →
	Exact match “Welcome to PHD.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	Omnicom Media Group	Exact match	New York, United StatesHQ recorded Sep 27, 2026	10001+	3,989 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 · Sep 27, 2026 · View company records in RevenueBase
7	Kinesso	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	5,001-10,000	2,860 contacts →
	Exact match “KINESSO is the technology-driven performance marketing agency within Omnicom Media that provides actionable growth for both agency partners and clients.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	OTHER	Exact match	Toronto, ON, CanadaHQ recorded Sep 27, 2026	n/a	2,671 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 · Sep 27, 2026 · View company records in RevenueBase
9	Publicis	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	1,001-5,000	2,531 contacts →
	Exact match “You can either adapt to change, ignore it or lead it.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10	Horizon Media	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	1,001-5,000	2,368 contacts →
	Exact match “Horizon Media is a leader in driving business-based outcomes for marketers.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11	media.net	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 27, 2026	1,001-5,000	2,011 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 · Sep 27, 2026 · View company records in RevenueBase
12	ALEPH	Exact match	Miami, FL, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,980 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 · Sep 27, 2026 · View company records in RevenueBase
13	Taboola	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,979 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 · Sep 27, 2026 · View company records in RevenueBase
14	TEADS	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,789 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 · Sep 27, 2026 · View company records in RevenueBase
15	Inmobi Advertising	Exact match	Bangalore, IndiaHQ recorded Sep 27, 2026	1,001-5,000	1,311 contacts →
	Exact match “InMobi Advertising is a leading global programmatic platform specializing in mobile-first solutions that drive customer growth.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16	Pubmatic	Exact match	Redwood City, CA, United StatesHQ recorded Sep 27, 2026	501-1,000	1,297 contacts →
	Exact match “PubMatic is the leading AI-powered ad tech company delivering digital advertising performance.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	Freewheel	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,273 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 · Sep 27, 2026 · View company records in RevenueBase
18	Tinuiti	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,173 contacts →
	Exact match “Tinuiti is a media agency that not only builds brands, but architects business outcomes.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	Mediaocean	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,050 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 · Sep 27, 2026 · View company records in RevenueBase
20	Brainlabs	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,010 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 · Sep 27, 2026 · View company records in RevenueBase
21	XR Extreme Reach	Exact match	Hudson Yards, NY, United StatesHQ recorded Sep 27, 2026	1,001-5,000	940 contacts →
	Exact match “XR Extreme Reach is the leading platform for managing advertising operations.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	Magnite	Exact match	United StatesHQ recorded Sep 27, 2026	501-1,000	910 contacts →
	Exact match “We’re Magnite (NASDAQ: MGNI), the world’s largest independent sell-side advertising company.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	Logical Position	Exact match	Lake Oswego, OR, United StatesHQ recorded Sep 27, 2026	501-1,000	899 contacts →
	Exact match “Logical Position (LP) is an Inc.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24	BASIS	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	501-1,000	891 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 · Sep 27, 2026 · View company records in RevenueBase
25	Paragon Digital Services	Exact match	Chennai, IndiaHQ recorded Sep 27, 2026	1,001-5,000	889 contacts →
	Exact match “A premier digital media services agency offering expert media operations and business services to advertisers, publishers and platforms.” Recorded in the RevenueBase company graph · Sep 27, 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 operations consulting firms”. 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 40,235 ad operations consulting firms worldwide

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Ad operations consulting firms worldwide at a glance

As of Sep 27, 2026

26.6%Verified-email coverage

10.3Average contacts per company

1-10Median size (employees)

2.0%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

24,693

11-50

12,075

51-200

2,485

201-500

603

501-1,000

163

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 operations consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “ad operations consulting firms” 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 109,950 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 September 27, 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 operations consulting firms by location

209 lists · largest first

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

How many ad operations consulting firms are there worldwide?

RevenueBase identified 40,235 company matches for ad operations consulting firms worldwide as of September 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 operations consulting firms?

The United States leads with 7,201 companies, followed by India (3,822) and Brazil (2,096). Every ad operations consulting firms list by country and city is linked on this page.

Which city has the most ad operations consulting firms?

London leads with 821 company records, followed by New York (648) and Sao Paulo (548).

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 109,950 professional contacts with verified work emails tracked across these 40,235 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 September 27, 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.