Company lists · Data refreshed September 2026

Top 25 Real-time bidding platforms based in London, United Kingdom

Name: Real-time bidding platforms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 115 companies tracked

RevenueBase identified 115 real-time bidding platforms headquartered in London, United Kingdom as of September 2026 and tracks 1,413 professional contacts across them, including 549 with verified work emails and 110 with mobile numbers. London is the largest hub.

This list covers real-time bidding platforms 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 September 13, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 13, 2026 86% judged on-target in blind review

115Companies

1,413Contacts tracked

549Verified emails

110Mobile numbers

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The 25 largest real-time bidding platforms based in London, United Kingdom

Ranked by team size

Top 25 of 115 real-time bidding platforms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to real-time bidding platforms: 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	VIOOH	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	179 contacts →
	Partial evidence “VIOOH is a leading premium global digital out of home supply side platform.” Source: RevenueBase Database · checked Sep 13, 2026
2	Permutive	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	122 contacts →
	Partial evidence “Permutive is the predictive collaboration platform enabling Walled Garden outcomes on the Open Internet.” Source: RevenueBase Database · checked Sep 13, 2026
3	Admixer	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	99 contacts →
	Indirect evidence “Admixer is an independent adtech company that develops an ecosystem of full-stack programmatic solutions.” Source: RevenueBase Database · checked Sep 13, 2026
4	OCM Digital Media	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	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 Sep 13, 2026
5	Unruly	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	501-1,000	39 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 13, 2026
6	Automated Creative	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	38 contacts →
	Partial evidence “Our platform helps performance marketers scale social, display and retail media campaigns.” Source: RevenueBase Database · checked Sep 13, 2026
7	Adserve	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	38 contacts →
	Indirect 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 Sep 13, 2026
8	Funnelfuel	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	29 contacts →
	Indirect evidence “Future-proofing B2B digital advertising and analytics in a cookieless world.” Source: RevenueBase Database · checked Sep 13, 2026
9	Geomotive	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	27 contacts →
	Indirect evidence “GEOMOTIVE is a marketplace that redefines DOOH advertising, fusing essential tools into a seamless ecosystem.” Source: RevenueBase Database · checked Sep 13, 2026
10	Voise Tech LTD	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	25 contacts →
	Indirect evidence “At Voise Tech, we simplify the complexity of digital advertising through.” Source: RevenueBase Database · checked Sep 13, 2026
11	Limelight INC	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	24 contacts →
	Indirect evidence “We offer a unique blend of cutting edge technology in combination with human connection and support.” Source: RevenueBase Database · checked Sep 13, 2026
12	Adludio	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	24 contacts →
	Partial evidence “Adludio is an award-winning, AI-powered platform that delivers brand outcomes through interactive mobile advertising.” Source: RevenueBase Database · checked Sep 13, 2026
13	Naritive	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	23 contacts →
	Indirect 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 Sep 13, 2026
14	Hoopla Digital LTD	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	18 contacts →
	Indirect evidence “Hoopla are an independent start-up online advertising network, specialising in online video, display, mobile and branded advertising solutions.” Source: RevenueBase Database · checked Sep 13, 2026
15	Anonymised	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	17 contacts →
	Partial evidence “Anonymised is a data platform using AI to drive incremental outcomes for advertisers.” Source: RevenueBase Database · checked Sep 13, 2026
16	Accountinsight The B2B DSP	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	17 contacts →
	Indirect evidence “AccountInsight helps you put your B2B ads in front of the companies that matter most, even when their teams are working remotely.” Source: RevenueBase Database · checked Sep 13, 2026
17	AXIS	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	15 contacts →
	Partial 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 Sep 13, 2026
18	Bidinfluence	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	14 contacts →
	Partial evidence “Welcome to bidinfluence, your premier supply-side platform specializing in the dynamic monetization of mobile applications through top-notch programmatic video ads.” Source: RevenueBase Database · checked Sep 13, 2026
19	IVO	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	10 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 13, 2026
20	Shareight	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	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 Sep 13, 2026
21	Adbreak	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	8 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 13, 2026
22	SBS	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	8 contacts →
	Indirect evidence “Programmatic was built to make media smarter.” Source: RevenueBase Database · checked Sep 13, 2026
23	Admarket	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	8 contacts →
	Partial evidence “Admarket.co is an advertising booking marketplace booking e-commerce platform for advertisers and media space owners.” Source: RevenueBase Database · checked Sep 13, 2026
24	Integral Stream	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	7 contacts →
	Partial evidence “Introducing independent data driven Advanced TV platform for all screen vide.” Source: RevenueBase Database · checked Sep 13, 2026
25	Pubfuture	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	6 contacts →
	Indirect evidence “Our best-in-class optimization techniques across premium demand channels while protecting your user experience and achieving the highest possible value for every impression in the…” Source: RevenueBase Database · checked Sep 13, 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: real-time bidding platforms. 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 real-time bidding platforms.
Partial evidence: Its own public description names part of real-time bidding platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name real-time bidding platforms. 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 115 real-time bidding platforms based in London, United Kingdom

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Real-time bidding platforms based in London, United Kingdom at a glance

As of Sep 13, 2026

38.9%Verified-email coverage

7.8%Mobile-number coverage

12.3Average contacts per company

11-50Median size (employees)

61.7%Largest-city concentration · London

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 16.0d

4180–30

12631–60

061–90

090–180

5180+

Company record updated

Median 68.0d

00–30

55831–60

63361–90

15390–180

69180+

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 real-time bidding platforms, 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 “real-time bidding platforms”. 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 real-time bidding platforms), 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 real-time bidding platforms, 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, 549 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 13, 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.

Real-time bidding platforms by metro in the United Kingdom

Real-time bidding platforms in London71

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 real-time bidding platforms, 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 real-time bidding platforms are there based in London, United Kingdom?

RevenueBase identified 115 real-time bidding platforms headquartered in London, United Kingdom 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?

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

Which city has the most real-time bidding platforms?

London leads with 71 headquartered companies, followed by Birmingham (4) and Addlestone (1).

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 549 verified decision-maker contacts tracked across these 115 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 13, 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.