Company lists · Data refreshed August 2026

Top 25 Ad network software companies based in London, United Kingdom

Name: Ad network software companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 30, 2026 152 companies tracked

RevenueBase identified 152 ad network software companies headquartered in London, United Kingdom as of August 2026 and tracks 2,301 professional contacts across them, including 793 with verified work emails and 218 with mobile numbers. London is the largest hub.

This list covers ad network software companies headquartered in London, United Kingdom, 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 August 30, 2026.

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 RevenueBase Smart Search rating on every row Refreshed Aug 30, 2026 86% judged on-target in blind review

152Companies

2,301Contacts tracked

793Verified emails

218Mobile numbers

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The 25 largest ad network software companies based in London, United Kingdom

Ranked by team size

Top 25 of 152 ad network software companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Aug 30, 2026. RevenueBase Smart Search rates how each company's information relates to ad network 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	VERVE	Partial evidence	London, United Kingdom	501-1,000	443 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 Aug 30, 2026
2	Ozone The Audience Connection Platform	Indirect evidence	London, United Kingdom	51-200	145 contacts →
	Indirect evidence “Ozone is a digital advertising business with a difference.” Source: RevenueBase Database · checked Aug 30, 2026
3	Admixer	Indirect evidence	London, United Kingdom	201-500	98 contacts →
	Indirect evidence “Admixer is an independent adtech company that develops an ecosystem of full-stack programmatic solutions.” Source: RevenueBase Database · checked Aug 30, 2026
4	REVX	Partial evidence	London, United Kingdom	51-200	88 contacts →
	Partial evidence “SCAM-ALERT: we do not employ freelancers for ad testing or similar, and we will not ask anyone to deposit private funds for such work!” Source: RevenueBase Database · checked Aug 30, 2026
5	Efficient Frontier	Indirect evidence	London, United Kingdom	201-500	85 contacts →
	Indirect evidence “Maximum advertising performance and returns.” Source: RevenueBase Database · checked Aug 30, 2026
6	Admaxim INC	Indirect evidence	London, United Kingdom	51-200	74 contacts →
	Indirect evidence “Consumer use of mobile devices is changing the advertising landscape drastically and rapidly.” Source: RevenueBase Database · checked Aug 30, 2026
7	Onetag	Indirect evidence	London, United Kingdom	51-200	71 contacts →
	Indirect evidence “Founded in 2015, Onetag is the next-generation value exchange for the open internet, combining quality media and AI-driven decisioning to deliver measurable business outcomes at…” Source: RevenueBase Database · checked Aug 30, 2026
8	Airnow Media	Indirect evidence	London, United Kingdom	201-500	68 contacts →
	Indirect evidence “We provide the most advanced targeting and optimization technology on the market, bringing unrivalled monetization solutions to advertisers and app publishers alike.” Source: RevenueBase Database · checked Aug 30, 2026
9	Sharethrough	Partial evidence	London, United Kingdom	51-200	62 contacts →
	Partial evidence “Sharethrough merged with District M in February 2021 to form what is now one of the leading independent global ad exchanges, connecting publishers and advertisers with true…” Source: RevenueBase Database · checked Aug 30, 2026
10	OCM Digital Media	Indirect evidence	London, United Kingdom	51-200	54 contacts →
	Indirect evidence “OCM is a leading adtech agency providing solutions to advertisers, advertising agencies and to web, mobile & video publishers.” Source: RevenueBase Database · checked Aug 30, 2026
11	Adserve	Strong evidence	London, United Kingdom	11-50	38 contacts →
	Strong evidence “We're an ad-tech company, serving the £23bn global market for audio advertising with software-as-a-service solutions for revenue optimisation, planning and scheduling.” Source: RevenueBase Database · checked Aug 30, 2026
12	MADS	Partial evidence	London, United Kingdom	11-50	32 contacts →
	Partial evidence “MADS is a leading, independent (mobile) ad technology company and operates in more than 30 countries world-wide.” Source: RevenueBase Database · checked Aug 30, 2026
13	Lidango INC	Partial evidence	London, United Kingdom	51-200	29 contacts →
	Partial evidence “Lidango is a fast developing affiliate network, specialized in connecting publishers who want to monetize their website incoming traffic with advertisers who want to maximize…” Source: RevenueBase Database · checked Aug 30, 2026
14	Voise Tech LTD	Indirect evidence	London, United Kingdom	11-50	25 contacts →
	Indirect evidence “At Voise Tech, we simplify the complexity of digital advertising through.” Source: RevenueBase Database · checked Aug 30, 2026
15	Naritive	Partial evidence	London, United Kingdom	51-200	22 contacts →
	Partial evidence “Naritive is a media owner dedicated to offering brands and companies better optimised and effective programmatic and display ad solutions.” Source: RevenueBase Database · checked Aug 30, 2026
16	Justpremium, A Gumgum Company	Indirect evidence	London, United Kingdom	51-200	19 contacts →
	Indirect evidence “JustPremium is the leading platform for programmatic rich media.” Source: RevenueBase Database · checked Aug 30, 2026
17	Hoopla Digital LTD	Partial evidence	London, United Kingdom	11-50	18 contacts →
	Partial evidence “Hoopla are an independent start-up online advertising network, specialising in online video, display, mobile and branded advertising solutions.” Source: RevenueBase Database · checked Aug 30, 2026
18	Adeum LTD	Strong evidence	London, United Kingdom	11-50	15 contacts →
	Strong evidence “Adeum is an innovative ad network that operates Push Notifications, Pop and Native traffic all over the world.” Source: RevenueBase Database · checked Aug 30, 2026
19	Powerlinks	Indirect evidence	London, United Kingdom	11-50	15 contacts →
	Indirect evidence “PowerLinks Media, Ltd.” Source: RevenueBase Database · checked Aug 30, 2026
20	AXIS	Indirect evidence	London, United Kingdom	11-50	13 contacts →
	Indirect evidence “Axis is a cutting-edge programmatic platform built to help publishers and app developers unlock the full potential of their inventory.” Source: RevenueBase Database · checked Aug 30, 2026
21	NEFTA	Strong evidence	London, United Kingdom	11-50	11 contacts →
	Strong evidence “Nefta is a new ad network helping game developers optimise user acquisition and maximize revenue using first-party data.” Source: RevenueBase Database · checked Aug 30, 2026
22	Trafficrich	Indirect evidence	London, United Kingdom	11-50	10 contacts →
	Indirect evidence “TrafficRich can take care of all your day to day trafficking requirements whatever your company does - if you work in the online advertising industry we can help you get your ads…” Source: RevenueBase Database · checked Aug 30, 2026
23	Shareight	Indirect evidence	London, United Kingdom	11-50	9 contacts →
	Indirect evidence “SHAREIGHT is a technology company providing value for multiple parties in the ever-growing digital marketplace.” Source: RevenueBase Database · checked Aug 30, 2026
24	Imagine Mobile	Strong evidence	London, United Kingdom	11-50	9 contacts →
	Strong evidence “We are a leading global premium ad-network with out of this world creative solutions.” Source: RevenueBase Database · checked Aug 30, 2026
25	GLUI	Indirect evidence	London, United Kingdom	11-50	9 contacts →
	Indirect evidence “Transform Your Digital Ads with High-Engagement Interactive Formats Glui.io is an interactive adtech platform that helps brands, agencies, and publishers create ads that do…” Source: RevenueBase Database · checked Aug 30, 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 network 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 network software companies.
Partial evidence: Its own public description names part of ad network 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 network 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 152 ad network software companies based in London, United Kingdom

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Ad network software companies based in London, United Kingdom at a glance

As of Aug 30, 2026

34.5%Verified-email coverage

9.5%Mobile-number coverage

15.1Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · London

Aug 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 network 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.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “ad network 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 network 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 network software companies, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
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, 793 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 August 30, 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 network software companies by metro in the United Kingdom

Ad network software companies in London152

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 network 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 network software companies are there based in London, United Kingdom?

RevenueBase identified 152 ad network software companies headquartered in London, United Kingdom as of August 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?

VERVE, headquartered in London, tops this list with the largest team on record.

Which city has the most ad network software companies?

London leads with 152 headquartered companies, followed by Edinburgh (5) and Bath (4).

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 793 verified decision-maker contacts tracked across these 152 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 30, 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.