Company lists · Data refreshed September 2026

Top 25 AI advertising technology companies worldwide

Name: AI advertising technology companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 9,209 companies tracked

RevenueBase identified 9,209 AI advertising technology companies worldwide as of September 2026 and tracks 134,482 professional contacts across them, including 45,792 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers AI advertising technology companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026. Country and city lists for AI advertising technology companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

9,209Companies

134,482Contacts tracked

45,792Verified emails

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The 25 largest AI advertising technology companies worldwide

Ranked by team size

Top 25 of 9,209 AI advertising technology companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to AI advertising technology companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Oliver The Brandtech Group	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	3,270 contacts →
	Partial evidence “OLIVER is the world's #1 in-housing expert, designing, building, and running AI-powered marketing organizations inside the world's biggest brands.” Source: RevenueBase Database · checked Sep 19, 2026
2	Acxiom	Indirect evidence	Conway, AR, United StatesHQ checked Sep 19, 2026	1,001-5,000	3,241 contacts →
	Indirect evidence “Acxiom puts data to work, solving complex challenges for the world’s leading brands and agencies.” Source: RevenueBase Database · checked Sep 19, 2026
3	Zeta Global	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,595 contacts →
	Indirect evidence “At Zeta Global (NYSE: ZETA), we help enterprise brands and agencies Achieve the Impossible™ with superintelligent marketing.” Source: RevenueBase Database · checked Sep 19, 2026
4	Jakala	Partial evidence	Milano, ItalyHQ checked Sep 19, 2026	1,001-5,000	2,546 contacts →
	Partial evidence “We are JAKALA.The leading European player in AI-powered, data-driven performance.” Source: RevenueBase Database · checked Sep 19, 2026
5	Jellyfish	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	2,119 contacts →
	Indirect evidence “Jellyfish \| Move Faster.” Source: RevenueBase Database · checked Sep 19, 2026
6	media.net	Strong evidence	Dubai, United Arab EmiratesHQ checked Sep 19, 2026	1,001-5,000	2,011 contacts →
	Strong evidence “Media.net is an independent advertising technology platform that helps publishers, advertisers, and agencies achieve measurable outcomes across all formats and mediums.” Source: RevenueBase Database · checked Sep 19, 2026
7	TEADS	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,789 contacts →
	Partial evidence “Teads Holding Co.(“Teads”)(Nasdaq: TEAD) is a leading omnichannel advertising platform focused on driving outcomes for brand and performance advertisers across screens.” Source: RevenueBase Database · checked Sep 19, 2026
8	Stackadapt	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	1,001-5,000	1,633 contacts →
	Partial evidence “StackAdapt is the leading technology company that empowers marketers to reach, engage, and convert audiences with precision.” Source: RevenueBase Database · checked Sep 19, 2026
9	Localiq	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,534 contacts →
	Partial evidence “Grow your business with digital marketing powered by AI and local expertise.” Source: RevenueBase Database · checked Sep 19, 2026
10	RTB House	Partial evidence	Warsaw, PolandHQ checked Sep 19, 2026	1,001-5,000	1,353 contacts →
	Partial evidence “RTB House is a next-generation performance demand-side platform (DSP) that uses proprietary Deep Learning AI algorithms to help brands grow.” Source: RevenueBase Database · checked Sep 19, 2026
11	Pubmatic	Strong evidence	Redwood City, CA, United StatesHQ checked Sep 19, 2026	501-1,000	1,297 contacts →
	Strong evidence “PubMatic is the leading AI-powered ad tech company delivering digital advertising performance.” Source: RevenueBase Database · checked Sep 19, 2026
12	Freewheel	Strong evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,273 contacts →
	Strong evidence “FreeWheel’s TV and video advertising technology is built for today’s ever-evolving multiscreen ecosystem.” Source: RevenueBase Database · checked Sep 19, 2026
13	Mediaocean	Strong evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,050 contacts →
	Strong evidence “Mediaocean is powering the future of the advertising ecosystem with technology that empowers brands and agencies to deliver impactful omnichannel marketing experiences.” Source: RevenueBase Database · checked Sep 19, 2026
14	Moloco	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 19, 2026	501-1,000	893 contacts →
	Partial evidence “Moloco’s mission is to be the scaling engine for the internet economy, applying AI to help businesses of all sizes grow.” Source: RevenueBase Database · checked Sep 19, 2026
15	Activecampaign	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	863 contacts →
	Partial evidence “ActiveCampaign is the AI-first autonomous marketing platform built to transform how marketers, agencies, and entrepreneurs work.” Source: RevenueBase Database · checked Sep 19, 2026
16	Appier	Partial evidence	Taipei, TaiwanHQ checked Sep 19, 2026	501-1,000	860 contacts →
	Partial evidence “Appier is an AI-native Agentic AI as a Service (AaaS) company that empowers businesses to create value with cutting-edge AdTech and MarTech solutions.” Source: RevenueBase Database · checked Sep 19, 2026
17	Adform	Indirect evidence	Copenhagen, DenmarkHQ checked Sep 19, 2026	501-1,000	847 contacts →
	Indirect evidence “Adform is the most powerful and safe media buying platform in the world.” Source: RevenueBase Database · checked Sep 19, 2026
18	Smartly	Strong evidence	Helsinki, FinlandHQ checked Sep 19, 2026	501-1,000	827 contacts →
	Strong evidence “Smartly is the AI-powered advertising technology company transforming ad experiences for brands and their consumers.” Source: RevenueBase Database · checked Sep 19, 2026
19	Applovin	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 19, 2026	201-500	733 contacts →
	Indirect evidence “AppLovin helps businesses of any size reach over a billion people who play mobile games every day.” Source: RevenueBase Database · checked Sep 19, 2026
20	Equativ	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	501-1,000	705 contacts →
	Indirect evidence “Equativ is a leading independent media platform that empowers advertisers and publishers to achieve real outcomes across the entire digital ecosystem.” Source: RevenueBase Database · checked Sep 19, 2026
21	Seedtag	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	501-1,000	704 contacts →
	Partial evidence “Seedtag is the global leader in Neuro-Contextual advertising.” Source: RevenueBase Database · checked Sep 19, 2026
22	simpli.fi	Indirect evidence	Fort Worth, TX, United StatesHQ checked Sep 19, 2026	501-1,000	680 contacts →
	Indirect evidence “Simpli.fi is a real-world media platform that connects digital intent with physical movement, helping brands reach audiences in the right place, at the right moment, to drive…” Source: RevenueBase Database · checked Sep 19, 2026
23	Perion	Partial evidence	New York, United StatesHQ checked Sep 19, 2026	501-1,000	621 contacts →
	Partial evidence “Perion is helping agencies, brands and retailers get better results with their marketing investments by providing advanced technology across all major digital channels.” Source: RevenueBase Database · checked Sep 19, 2026
24	Liftoff Mobile	Indirect evidence	Redwood City, CA, United StatesHQ checked Sep 19, 2026	501-1,000	612 contacts →
	Indirect evidence “Liftoff helps mobile businesses maximize their revenue.” Source: RevenueBase Database · checked Sep 19, 2026
25	OGURY	Partial evidence	London, FranceHQ checked Sep 19, 2026	501-1,000	595 contacts →
	Partial evidence “Ogury is a global adtech company powered by Persona Intelligence, its proprietary technology that enables brands and agencies to activate consistent persona-based strategies…” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: AI advertising technology companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names AI advertising technology companies.
Partial evidence: Its own public description names part of AI advertising technology companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name AI advertising technology companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 9,209 AI advertising technology companies worldwide

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AI advertising technology companies worldwide at a glance

As of Sep 19, 2026

34.1%Verified-email coverage

14.6Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

5,212

11-50

2,898

51-200

807

201-500

174

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among AI advertising technology companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for AI advertising technology companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “AI advertising technology companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names AI advertising technology companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among AI advertising technology companies, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 45,792 across the full list. 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.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

AI advertising technology companies by location

50 lists · largest first

Every AI advertising technology companies 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names AI advertising technology companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many AI advertising technology companies are there worldwide?

RevenueBase identified 9,209 AI advertising technology companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Oliver The Brandtech Group, headquartered in Worldwide, tops this list with the largest team on record.

Which country has the most AI advertising technology companies?

The United States leads with 2,096 companies, followed by India (930) and the United Kingdom (406). Every AI advertising technology companies list by country and city is linked on this page.

Which city has the most AI advertising technology companies?

New York leads with 274 headquartered companies, followed by London (255) and Dubai (155).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 45,792 verified decision-maker contacts tracked across these 9,209 companies.

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 Smart Search, 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.