Company lists · Data refreshed September 2026

Top 25 Ad personalization software companies worldwide

Name: Ad personalization software companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 1,670 companies tracked

RevenueBase identified 1,670 ad personalization software companies worldwide as of September 2026 and tracks 47,926 professional contacts across them, including 19,550 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers ad personalization software 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 27, 2026. Country and city lists for ad personalization software 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 27, 2026 86% judged on-target in blind review

1,670Companies

47,926Contacts tracked

19,550Verified emails

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The 25 largest ad personalization software companies worldwide

Ranked by team size

Top 25 of 1,670 ad personalization software companies worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to ad personalization software 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	Epsilon	Indirect evidence	Irving, TX, United StatesHQ checked Sep 27, 2026	5,001-10,000	9,953 contacts →
	Indirect evidence “Epsilon is a global leader in data and identity with deep expertise in digital media, clean rooms, customer data platforms, loyalty and marketing services.” Source: RevenueBase Database · checked Sep 27, 2026
2	Zeta Global	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 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 27, 2026
3	Stackadapt	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 27, 2026	1,001-5,000	1,633 contacts →
	Indirect evidence “StackAdapt is the leading technology company that empowers marketers to reach, engage, and convert audiences with precision.” Source: RevenueBase Database · checked Sep 27, 2026
4	Pubmatic	Partial evidence	Redwood City, CA, United StatesHQ checked Sep 27, 2026	501-1,000	1,297 contacts →
	Partial evidence “PubMatic is the leading AI-powered ad tech company delivering digital advertising performance.” Source: RevenueBase Database · checked Sep 27, 2026
5	Mediaocean	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,050 contacts →
	Indirect 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 27, 2026
6	Moloco	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 27, 2026	501-1,000	893 contacts →
	Indirect 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 27, 2026
7	Applovin	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 27, 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 27, 2026
8	Perion	Indirect evidence	New York, United StatesHQ checked Sep 27, 2026	501-1,000	621 contacts →
	Indirect 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 27, 2026
9	Liftoff Mobile	Indirect evidence	Redwood City, CA, United StatesHQ checked Sep 27, 2026	501-1,000	612 contacts →
	Indirect evidence “Liftoff helps mobile businesses maximize their revenue.” Source: RevenueBase Database · checked Sep 27, 2026
10	OGURY	Indirect evidence	London, FranceHQ checked Sep 27, 2026	501-1,000	595 contacts →
	Indirect 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 27, 2026
11	Gumgum	Indirect evidence	Santa Monica, United StatesHQ checked Sep 27, 2026	501-1,000	522 contacts →
	Indirect evidence “GumGum is The Mindset Company™ transforming advertising.” Source: RevenueBase Database · checked Sep 27, 2026
12	Wunderkind	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	521 contacts →
	Indirect evidence “Wunderkind is pioneering a new category of AI agentic marketing decisioning, where identity meets AI to drive scalable performance across channel.” Source: RevenueBase Database · checked Sep 27, 2026
13	Quantcast	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	501-1,000	491 contacts →
	Partial evidence “Quantcast is the AI-powered ad platform built for performance marketers.” Source: RevenueBase Database · checked Sep 27, 2026
14	Affinity Global	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	201-500	446 contacts →
	Indirect evidence “Affinity is a leading global AdTech company, empowering publishers to maximize revenue and enabling advertisers to reach their ideal audiences.” Source: RevenueBase Database · checked Sep 27, 2026
15	VERVE	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	436 contacts →
	Partial evidence “Verve is a global leading advertising technology company, connecting advertisers seeking to buy digital ad space with publishers monetizing their content.” Source: RevenueBase Database · checked Sep 27, 2026
16	Viant Technology	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 27, 2026	201-500	418 contacts →
	Indirect evidence “Viant Technology Inc.(NASDAQ: DSP) is a leader in AI-powered programmatic advertising, dedicated to driving innovation in digital marketing.” Source: RevenueBase Database · checked Sep 27, 2026
17	BIG ADS	Partial evidence	Sydney, AustraliaHQ checked Sep 27, 2026	n/a	409 contacts →
	Partial evidence “Big Ads has been providing digital ad-tech solutions for 3 years with great success thanks to the release of Buddy, an ad-tech platform which produces rich media creative tags to…” Source: RevenueBase Database · checked Sep 27, 2026
18	Valueleaf Services India Pvt. LTD	Indirect evidence	Bangalore, IndiaHQ checked Sep 27, 2026	201-500	405 contacts →
	Indirect evidence “Valueleaf, founded in 2006 and headquartered in Bengaluru, India, is a data-driven AdTech and performance marketing leader, dedicated to driving digital growth and transformation…” Source: RevenueBase Database · checked Sep 27, 2026
19	Loopme	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	401 contacts →
	Indirect evidence “LoopMe is bringing brands into apps, powered by AI agents.” Source: RevenueBase Database · checked Sep 27, 2026
20	AFFLE	Indirect evidence	SingaporeHQ checked Sep 27, 2026	501-1,000	397 contacts →
	Indirect evidence “Affle 3i Limited is a global technology company enabling AI-led solutions in mobile advertising.” Source: RevenueBase Database · checked Sep 27, 2026
21	Arabyads	Partial evidence	Dubai, United Arab EmiratesHQ checked Sep 27, 2026	201-500	393 contacts →
	Partial evidence “ArabyAds is an ad-tech company that empowers ecommerce marketing.” Source: RevenueBase Database · checked Sep 27, 2026
22	Databeat	Indirect evidence	Princeton, NJ, United StatesHQ checked Sep 27, 2026	201-500	357 contacts →
	Indirect evidence “At DataBeat, we redefine what's possible in AdTech, simplifying AdTech complexities into actionable strategies that drive revenue.” Source: RevenueBase Database · checked Sep 27, 2026
23	Deltax	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 2026	201-500	357 contacts →
	Indirect evidence “DeltaX is an enterprise-grade full-stack cross-channel advertising solution.” Source: RevenueBase Database · checked Sep 27, 2026
24	Innity	Partial evidence	Petaling Jaya, MalaysiaHQ checked Sep 27, 2026	201-500	357 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026
25	Claritas	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 27, 2026	201-500	299 contacts →
	Indirect evidence “Claritas: Empowering Data-Driven Marketing With nearly 50 years of understanding the American consumer, Claritas offers a comprehensive marketing optimization platform.” Source: RevenueBase Database · checked Sep 27, 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: ad personalization software 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 ad personalization software companies.
Partial evidence: Its own public description names part of ad personalization software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ad personalization software 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 1,670 ad personalization software companies worldwide

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Ad personalization software companies worldwide at a glance

As of Sep 27, 2026

40.8%Verified-email coverage

28.7Average contacts per company

11-50Median size (employees)

4.1%Largest-city concentration · New York

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

671

11-50

665

51-200

231

201-500

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 ad personalization software 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 ad personalization software companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “ad personalization software 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 ad personalization software 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 ad personalization software 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, 19,550 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 27, 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.

Ad personalization software companies by location

12 lists · largest first

Every Ad personalization software 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 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 ad personalization software 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 ad personalization software companies are there worldwide?

RevenueBase identified 1,670 ad personalization software 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?

Epsilon, headquartered in Irving, tops this list with the largest team on record.

Which country has the most ad personalization software companies?

The United States leads with 417 companies, followed by India (152) and the United Kingdom (76). Every ad personalization software companies list by country and city is linked on this page.

Which city has the most ad personalization software companies?

New York leads with 69 headquartered companies, followed by London (55) and Singapore (37).

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 19,550 verified decision-maker contacts tracked across these 1,670 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 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 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.