Company lists · Data refreshed September 2026

Top 25 B2B advertising software companies worldwide

Name: B2B advertising software companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 6,151 companies tracked

RevenueBase identified 6,151 B2B advertising software companies worldwide as of September 2026 and tracks 98,916 professional contacts across them, including 30,579 with verified work emails. The United States is the largest market and London the largest hub.

This list covers B2B advertising 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 B2B advertising 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

6,151Companies

98,916Contacts tracked

30,579Verified emails

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The 25 largest B2B advertising software companies worldwide

Ranked by team size

Top 25 of 6,151 B2B advertising 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 B2B advertising 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	Xdbs Worldwide	Indirect evidence	Dubai, United Arab EmiratesHQ checked Sep 27, 2026	1,001-5,000	3,498 contacts →
	Indirect evidence “At XDBS, we primarily work with media agencies, publishers and marketing companies looking to leverage marketing automation and digital marketing capacity and capability to…” 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	Taboola	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,979 contacts →
	Partial evidence “Taboola empowers businesses to grow through performance advertising technology that goes beyond search and social and delivers measurable outcomes at scale.” Source: RevenueBase Database · checked Sep 27, 2026
4	TEADS	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 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 27, 2026
5	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
6	Intuit Mailchimp	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,483 contacts →
	Indirect evidence “The Mailchimpossibilities are endless when you create, automate, and optimize your marketing with Mailchimp.” Source: RevenueBase Database · checked Sep 27, 2026
7	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
8	Centro	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	501-1,000	1,178 contacts →
	Partial evidence “Basis Technologies is a global provider of workflow automation, intelligence and programmatic trading software for the marketing enterprise.” Source: RevenueBase Database · checked Sep 27, 2026
9	Mediaocean	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,050 contacts →
	Partial 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
10	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
11	BASIS	Strong evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	501-1,000	891 contacts →
	Strong evidence “Basis is a global provider of media automation and programmatic advertising software and services for enterprises.” Source: RevenueBase Database · checked Sep 27, 2026
12	Activecampaign	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1,001-5,000	863 contacts →
	Indirect evidence “ActiveCampaign is the AI-first autonomous marketing platform built to transform how marketers, agencies, and entrepreneurs work.” Source: RevenueBase Database · checked Sep 27, 2026
13	Adform	Indirect evidence	Copenhagen, DenmarkHQ checked Sep 27, 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 27, 2026
14	Smartly	Partial evidence	Helsinki, FinlandHQ checked Sep 27, 2026	501-1,000	827 contacts →
	Partial evidence “Smartly is the AI-powered advertising technology company transforming ad experiences for brands and their consumers.” Source: RevenueBase Database · checked Sep 27, 2026
15	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
16	MNTN	Strong evidence	Austin (remote), TX, United StatesHQ checked Sep 27, 2026	201-500	707 contacts →
	Strong evidence “MNTN builds advertising software for brands to drive measurable conversions, revenue, site visits and more through the power of television.” Source: RevenueBase Database · checked Sep 27, 2026
17	simpli.fi	Indirect evidence	Fort Worth, TX, United StatesHQ checked Sep 27, 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 27, 2026
18	Innovid	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	640 contacts →
	Indirect evidence “Innovid is the leading independent ad tech platform, empowering marketers to create, deliver, measure, and optimize ad-supported experiences that people love.” Source: RevenueBase Database · checked Sep 27, 2026
19	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
20	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
21	Optimove	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	588 contacts →
	Indirect evidence “Optimove, the creator of Positionless Marketing, frees marketing teams from the limitations of fixed roles, giving every marketer the power to execute any marketing task instantly…” Source: RevenueBase Database · checked Sep 27, 2026
22	Quantcast	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	501-1,000	491 contacts →
	Indirect evidence “Quantcast is the AI-powered ad platform built for performance marketers.” Source: RevenueBase Database · checked Sep 27, 2026
23	Branch	Indirect evidence	Mountain View, CA, United StatesHQ checked Sep 27, 2026	201-500	459 contacts →
	Indirect evidence “Branch is on a mission: to power impactful experiences in the connected world.” Source: RevenueBase Database · checked Sep 27, 2026
24	Adsmurai	Indirect evidence	Barcelona, United StatesHQ checked Sep 27, 2026	201-500	453 contacts →
	Indirect evidence “Adsmurai is a Growth-Tech Partner that helps brands transform marketing into a connected, measurable, and scalable growth system.” Source: RevenueBase Database · checked Sep 27, 2026
25	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

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: B2B advertising 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 B2B advertising software companies.
Partial evidence: Its own public description names part of B2B advertising software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name B2B advertising 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 6,151 B2B advertising software companies worldwide

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B2B advertising software companies worldwide at a glance

As of Sep 27, 2026

30.9%Verified-email coverage

16.1Average contacts per company

1-10Median size (employees)

2.8%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

3,076

11-50

2,177

51-200

630

201-500

162

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 B2B advertising 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 B2B advertising software companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “B2B advertising 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 B2B advertising 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 B2B advertising 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, 30,579 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.

B2B advertising software companies by location

39 lists · largest first

Every B2B advertising software 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 B2B advertising 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 B2B advertising software companies are there worldwide?

RevenueBase identified 6,151 B2B advertising 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?

Xdbs Worldwide, headquartered in Dubai, tops this list with the largest team on record.

Which country has the most B2B advertising software companies?

The United States leads with 1,368 companies, followed by India (602) and the United Kingdom (294). Every B2B advertising software companies list by country and city is linked on this page.

Which city has the most B2B advertising software companies?

London leads with 174 headquartered companies, followed by New York (155) and Singapore (86).

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 30,579 verified decision-maker contacts tracked across these 6,151 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.