Company lists · Data refreshed September 2026

Top 25 Ad verification companies worldwide

RevenueBase identified 198 company matches for ad verification companies worldwide as of September 2026 and tracks 4,131 professional contacts across them, including 2,107 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for ad verification companies 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 19, 2026. Country and city lists for ad verification companies 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 19, 2026 How this list was built
198Companies
4,131Contacts tracked
2,107Verified emails
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The 25 largest ad verification companies worldwide

Ranked by team size
Top 25 of 198 company matches for ad verification companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNew York, NY, United StatesHQ recorded Sep 19, 2026501-1,000966 contacts →

Exact match

“Integral Ad Science is a leading global media measurement and optimization platform that delivers the industry’s most actionable data to drive superior results for the world’s…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchUnited StatesHQ recorded Sep 19, 2026501-1,000910 contacts →

Exact match

“We’re Magnite (NASDAQ: MGNI), the world’s largest independent sell-side advertising company.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchPetaling Jaya, MalaysiaHQ recorded Sep 19, 2026201-500357 contacts →

Exact match

“Innity is a leading online media company in Asia that offers best in class data-driven ad tech solutions that combines creative programmatic, ad-serving, data management, audience…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchPortland, OR, United StatesHQ recorded Sep 19, 2026201-500192 contacts →

Exact match

“SheerID is the leading provider for verifying and engaging high-value audiences, and is trusted by hundreds of the world's most admired brands, including Amazon, Spotify…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchAgra, IndiaHQ recorded Sep 19, 202651-20086 contacts →

Exact match

“Pixeltruth thrives on the power of trained, skilled manpower.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Sep 19, 202651-20085 contacts →

Exact match

“GeoEdge is a leader in the AdTech industry, equipping the industry with real-time, client-side malvertising prevention and ad quality control.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchWashington, DC, United StatesHQ recorded Sep 19, 202651-20075 contacts →

Exact match

“Pixalate, the market-leading fraud protection, privacy, and compliance analytics platform for Connected TV (CTV) and Mobile Advertising.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchMinato-ku, JapanHQ recorded Sep 19, 202651-20069 contacts →

Exact match

“Spider AF helps advertisers eliminate invalid clicks, fake leads, and other non-human traffic before it damages campaign performance.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchPerth, AustraliaHQ recorded Sep 19, 202651-20059 contacts →

Exact match

“TrafficGuard's comprehensive ad verification and fraud prevention has been recognised by App Growth Awards, Effective Mobile Marketing Awards, MarTech Breakthrough Awards, Future…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchPlovdiv, BulgariaHQ recorded Sep 19, 202651-20050 contacts →

Exact match

“AdNow is a native advertising company and a proud member of IAB Europe.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchMadrid, United StatesHQ recorded Sep 19, 2026201-50043 contacts →

Exact match

“Mobusi, part of SunMedia Group, is an Adtech Company which offers solutions to publishers and media in order to monetize their inventory worldwide.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchMoscow, RussiaHQ recorded Sep 19, 202651-20041 contacts →

Exact match

“Online advertising based on verified offline-data Segmento is the part of Sberbank group of companies and the first European advertising platform integrated with the bank.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchBarcelona, SpainHQ recorded Sep 19, 2026201-50035 contacts →

Exact match

“EXOGROUP is a set of companies offering a range of services within the digital business landscape.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchSharjah, United Arab EmiratesHQ recorded Sep 19, 202651-20034 contacts →

Exact match

“MagicBid is a global AI-powered AdTech company redefining how publishers and advertisers monetize across Web, App, CTV, and H5 Games.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchHelsinki, FinlandHQ recorded Sep 19, 202611-5034 contacts →

Exact match

“Kiosked is a global advertising technology company.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchRio De Janeiro, BrazilHQ recorded Sep 19, 202651-20032 contacts →

Exact match

“Criada em 17 de agosto de 1993, a MPV7 tem como prioridade alcançar o mais alto nível em qualidade técnica, para melhor atender às expectativas e necessidades de nossos clientes…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchBarcelona, SpainHQ recorded Sep 19, 202651-20028 contacts →

Exact match

“Optima is an advertising technology company providing revenue optimization and predictability to publishers of all sizes.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchToronto, ON, CanadaHQ recorded Sep 19, 202611-5028 contacts →

Exact match

“Blockthrough helps the world’s leading publishers generate incremental revenue by delivering lighter, non-disruptive ads to 350 million ad-filtering users.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchUnited StatesHQ recorded Sep 19, 202611-5028 contacts →

Exact match

“VeraViews is a comprehensive ad-tech platform transforming digital advertising through transparency and advanced fraud detection.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchNY, United StatesHQ recorded Sep 19, 202611-5025 contacts →

Exact match

“Adipolo, founded in 2016 is the leading, one-stop-shop for all digital advertising solutions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchRoad Town, British Virgin IslandsHQ recorded Sep 19, 202611-5025 contacts →

Exact match

“Verasity’s mission is to significantly increase advertising revenues for video publishers, on any video platform, through its rewarded player and ad stack utilizing its patented…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchMunich, GermanyHQ recorded Sep 19, 202611-5020 contacts →

Exact match

“Up to 25% of your marketing budget is wasted on bots and invalid traffic.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchTel Aviv, IsraelHQ recorded Sep 19, 202611-5020 contacts →

Exact match

“Protected by Mediaocean represents a fundamental shift in ad verification.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchShevchenkivskyi District, UkraineHQ recorded Sep 19, 20261-1020 contacts →

Exact match

“We offer a range of video units, native ads and banner creatives.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchBarcelona, SpainHQ recorded Sep 19, 202611-5019 contacts →

Exact match

“Opticks provides fraud detection and prevention solutions for leading advertisers and agencies.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 198 ad verification companies worldwide

See the full list, filter by size, metro and specialty, and access 2,107 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ad verification companies worldwide at a glance

As of Sep 19, 2026
51.0%Verified-email coverage
20.9Average contacts per company
11-50Median size (employees)
4.0%Largest-city concentration · London
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
74
11-50
91
51-200
26
201-500
5
501-1,000
2

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 verification companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “ad verification companies” 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 2,107 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 19, 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 verification companies by location

1 lists · largest first

Every Ad verification companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 verification companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ad verification companies are there worldwide?

RevenueBase identified 198 company matches for ad verification companies 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?

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

Which country has the most ad verification companies?

The United States leads with 41 companies. Every ad verification companies list by country and city is linked on this page.

Which city has the most ad verification companies?

London leads with 8 company records, followed by New York (7) and Dubai (5).

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 2,107 professional contacts with verified work emails tracked across these 198 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 19, 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.