Company lists · Data refreshed September 2026

Top 25 Marketplace advertising software companies based in London, United Kingdom

Name: Marketplace advertising 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 Sep 28, 2026 131 companies tracked

RevenueBase identified 131 company matches for marketplace advertising software companies associated with London, United Kingdom as of September 2026 and tracks 1,383 professional contacts across them, including 430 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for marketplace advertising software companies associated with London, United Kingdom, 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 28, 2026.

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 28, 2026 How this list was built

131Companies

1,383Contacts tracked

430Verified emails

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The 25 largest marketplace advertising software companies based in London, United Kingdom

Ranked by team size

Top 25 of 131 company matches for marketplace advertising software companies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Permutive	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	122 contacts →
	Exact match “Permutive is the predictive collaboration platform enabling Walled Garden outcomes on the Open Internet.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Admixer	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	99 contacts →
	Exact match “Admixer is an independent adtech company that develops an ecosystem of full-stack programmatic solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	OCM Digital Media	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	54 contacts →
	Exact match “OCM is a leading adtech agency providing solutions to advertisers, advertising agencies and to web, mobile & video publishers.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Unruly	Exact match	London, United KingdomHQ recorded Sep 28, 2026	501-1,000	39 contacts →
	Exact match “Nexxen empowers advertisers, agencies, publishers and broadcasters around the world to utilize data and advanced TV in the ways that are most meaningful to them.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Sembot	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	39 contacts →
	Exact match “Focus on strategy, not manually time-consuming tasks.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Automated Creative	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	38 contacts →
	Exact match “Our platform helps performance marketers scale social, display and retail media campaigns.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Adserve	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	38 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Funnelfuel	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	29 contacts →
	Exact match “Future-proofing B2B digital advertising and analytics in a cookieless world.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Geomotive	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	27 contacts →
	Exact match “GEOMOTIVE is a marketplace that redefines DOOH advertising, fusing essential tools into a seamless ecosystem.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Voise Tech LTD	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	25 contacts →
	Exact match “At Voise Tech, we simplify the complexity of digital advertising through.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Clickio	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	24 contacts →
	Exact match “Clickio is a Google Certified Publishing Partner which uses innovative technology to help publishers get more from their websites.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Adludio	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	24 contacts →
	Exact match “Adludio is an award-winning, AI-powered platform that delivers brand outcomes through interactive mobile advertising.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Naritive	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	23 contacts →
	Exact match “Naritive is a media owner dedicated to offering brands and companies better optimised and effective programmatic and display ad solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Anonymised	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	17 contacts →
	Exact match “Anonymised is a data platform using AI to drive incremental outcomes for advertisers.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Accountinsight The B2B DSP	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	17 contacts →
	Exact match “AccountInsight helps you put your B2B ads in front of the companies that matter most, even when their teams are working remotely.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	AXIS	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	15 contacts →
	Exact match “Axis is a cutting-edge programmatic platform built to help publishers and app developers unlock the full potential of their inventory.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Percept	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	13 contacts →
	Exact match “Percept helps you take control of your digital ad spend by enabling you to find and fix the key problems affecting performance.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	IVO	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	10 contacts →
	Exact match “The IVO digital ad product platform provides publishers with a strategic opportunity to increase revenue and maximise inventory yields, by leveraging the best workflow and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Shareight	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	9 contacts →
	Exact match “SHAREIGHT is a technology company providing value for multiple parties in the ever-growing digital marketplace.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Trackonomics	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	9 contacts →
	Exact match “At Trackonomics, we’re passionate about innovating affiliates and moving the industry forward.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Adbreak	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	8 contacts →
	Exact match “The vision of this organization is to continuously innovate and improve the field of digital advertising by focusing on the research and development of tools used to optimize the…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	SBS	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	8 contacts →
	Exact match “Programmatic was built to make media smarter.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Admarket	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	8 contacts →
	Exact match “Admarket.co is an advertising booking marketplace booking e-commerce platform for advertisers and media space owners.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Qmuli LTD	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	6 contacts →
	Exact match “At Qmuli, we are committed to providing our customers with the very best advertising solutions with innovative campaign management and production systems.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	United4digital	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	6 contacts →
	Exact match “United4digital is a global marketing company specializing in video and audio advertising solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “marketplace advertising software companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 131 marketplace advertising software companies based in London, United Kingdom

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Marketplace advertising software companies based in London, United Kingdom at a glance

As of Sep 28, 2026

31.1%Verified-email coverage

10.6Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 131 companies.

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.
What qualifies: Company records associated with London, United Kingdom whose business descriptions match “marketplace advertising software 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 430 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 28, 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.

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 “marketplace advertising software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many marketplace advertising software companies are there based in London, United Kingdom?

RevenueBase identified 131 company matches for marketplace advertising software companies associated with London, United Kingdom 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?

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

Which city in the United Kingdom has the most marketplace advertising software companies?

London leads the United Kingdom with 131 company records, followed by Birmingham (4) and Manchester (4).

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 430 professional contacts with verified work emails tracked across these 131 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 28, 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.