Company lists · Data refreshed November 2026

Top 25 Ad operations consulting services worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 40,219 companies tracked

RevenueBase identified 40,219 company matches for ad operations consulting services worldwide as of November 2026 and tracks 315,013 professional contacts across them, including 73,297 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 services 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 operations consulting services 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

40,219Companies

315,013Contacts tracked

73,297Verified emails

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The 25 largest ad operations consulting services worldwide

Ranked by team size

Top 25 of 40,219 company matches for ad operations consulting services 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	Eficacia	Exact match	Cali, ColombiaHQ recorded Nov 6, 2026	10001+	5,573 contacts →
	Exact match “Incrementamos la productividad y eficiencia de nuestros clientes- Más de 40 años de experiencia en el mercado- Líderes en Soluciones de Mercadeo, Trade Marketing, Ventas y Gestión…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	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
3	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
4	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
5	Qintess	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,850 contacts →
	Exact match “Experts in digital acceleration and business transformation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Grazitti Interactive	Exact match	Mountain View, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,568 contacts →
	Exact match “Grazitti Interactive is a digital innovation leader with offices in India, USA, Australia, and Singapore.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	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
8	WSI World	Exact match	Etobicoke, ON, CanadaHQ recorded Nov 6, 2026	1,001-5,000	1,057 contacts →
	Exact match “WSI is a global digital marketing and AI consulting network with 30 years of experience helping businesses grow and adapt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	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
10	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
11	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
12	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
13	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
14	Mark UP	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	n/a	864 contacts →
	Exact match “Não é o que fazemos.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	SEO Discovery Private Limited	Exact match	Mohali, IndiaHQ recorded Nov 6, 2026	201-500	802 contacts →
	Exact match “SEO Discovery is a global leader in next-generation digital marketing services, solutions, and consulting.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	COX Media	Exact match	Atlanta, KS, United StatesHQ recorded Nov 6, 2026	501-1,000	788 contacts →
	Exact match “Cox Media is now Spectrum Reach.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Metyis	Exact match	Baar, SwitzerlandHQ recorded Nov 6, 2026	1,001-5,000	783 contacts →
	Exact match “Metyis is a global firm operating across a wide range of industries, delivering AI & Data, Digital Commerce, and Global Business Solutions, as well as providing Advisory Services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Visiativ	Exact match	Lyon, FranceHQ recorded Nov 6, 2026	1,001-5,000	770 contacts →
	Exact match “Through innovation and digitalisation, Visiativ delivers smarter ways of working that help businesses become more agile, efficient and collaborative.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	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
20	Cadastra	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	501-1,000	744 contacts →
	Exact match “We are a global company that blends digital marketing services, consulting and technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	RNF Technologies	Exact match	Noida, IndiaHQ recorded Nov 6, 2026	501-1,000	713 contacts →
	Exact match “RNF is a Technology Services and Consulting firm, at the forefront of product innovation, digital transformation, and online marketing strategies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Square Management	Exact match	Neuilly Sur Seine, FranceHQ recorded Nov 6, 2026	501-1,000	707 contacts →
	Exact match “Square Management est un cabinet de conseil spécialisé en stratégie et organisation qui accompagne ses clients dans l’anticipation, la conception et la réalisation de leurs…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Metafinanz	Exact match	Munich, GermanyHQ recorded Nov 6, 2026	501-1,000	702 contacts →
	Exact match “For over 35 years, metafinanz Informationssysteme GmbH, a business and IT consulting company, has been at the side of its customers in an increasingly digital and dynamic world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Launch By NTT Data	Exact match	United StatesHQ recorded Nov 6, 2026	1,001-5,000	687 contacts →
	Exact match “Launch is a portfolio of services within NTT DATA that is designed specifically to deliver exceptional digital products and experiences.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Perion	Exact match	New York, United StatesHQ recorded Nov 6, 2026	501-1,000	685 contacts →
	Exact match “Perion is helping agencies, brands and retailers get better results with their marketing investments by providing advanced technology across all major digital channels.” 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 operations consulting services”. 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 40,219 ad operations consulting services worldwide

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Ad operations consulting services worldwide at a glance

As of Nov 6, 2026

23.3%Verified-email coverage

7.8Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

27,308

11-50

10,215

51-200

1,904

201-500

428

501-1,000

111

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 services are linked below.
What qualifies: Company records worldwide whose business descriptions match “ad operations consulting services” 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 73,297 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 operations consulting services by location

210 lists · largest first

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

How many ad operations consulting services are there worldwide?

RevenueBase identified 40,219 company matches for ad operations consulting services 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?

Eficacia 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 services?

The United States leads with 6,827 companies, followed by India (3,256) and Brazil (2,291). Every ad operations consulting services list by country and city is linked on this page.

Which city has the most ad operations consulting services?

London leads with 739 company records, followed by Sao Paulo (576) and New York (530).

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 73,297 professional contacts with verified work emails tracked across these 40,219 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.