Company lists · Data verified August 2026

Top 25 Advertising data management platforms based in London, United Kingdom

Name: Advertising data management platforms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 162 companies tracked

There are 162 advertising data management platforms headquartered in London, United Kingdom (RevenueBase, August 2026). RevenueBase tracks 4,265 professional contacts across them, including 1,399 with verified work emails and 596 with mobile numbers. London is the largest hub.

This list covers advertising data management 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. Data current as of August 28, 2026.

162Companies

4,265Contacts tracked

1,399Verified emails

596Mobile numbers

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The 25 largest advertising data management platforms based in London, United Kingdom

Ranked by team size

Top 25 of 162 advertising data management platforms based in London, United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	OGURY	London	501-1,000	591	100
2	VERVE	London	501-1,000	443	180
3	OUTRA	London	n/a	188	43
4	Expandi Group	London	201-500	155	46
5	Ozone The Audience Connection Platform	London	51-200	145	109
6	Ometria	London	51-200	135	98
7	Crimtan	London	51-200	128	94
8	Admixer	London	201-500	98	15
9	REVX	London	51-200	88	44
10	Efficient Frontier	London	201-500	85	2
11	id5.io	London	51-200	72	51
12	Onetag	London	51-200	71	61
13	Redmill Solutions	London	51-200	61	35
14	Adylic	London	51-200	58	25
15	PLINC	London	51-200	56	32
16	OCM Digital Media	London	51-200	54	38
17	PEACH	London	201-500	46	22
18	Countly	London	51-200	40	1
19	Adconion Media Group	London	501-1,000	39	1
20	Aitarget Tech	London	51-200	33	10
21	Offernet	London	51-200	33	6
22	Videology, INC	London	201-500	28	3
23	Cremicro	London	11-50	26	6
24	Voise Tech LTD	London	11-50	25	8
25	Encore Digital Media	London	11-50	23	14

Showing 25 of 162 advertising data management platforms based in London, United Kingdom

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Advertising data management platforms based in London, United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 162 HQs

596Contacts with mobile numbers

11Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Advertising data management platforms by metro in the United Kingdom

Metro	Companies
Advertising data management platforms in London	162
Advertising data management platforms in Manchester	8
Advertising data management platforms in Edinburgh	5
Advertising data management platforms in Birmingham	4
Advertising data management platforms in London London	3
Advertising data management platforms in Southampton	2
Advertising data management platforms in Nottingham	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “advertising data management platforms”, with match quality audited by blind human judging, and headquartered in London, United Kingdom.
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: Contact records re-verify on a rolling cadence; 11 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many advertising data management platforms are there based in London, United Kingdom?

There are 162 advertising data management platforms headquartered in London, United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most advertising data management platforms?

London leads with 162 headquartered companies, followed by Manchester (8) and Edinburgh (5).

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 1,399 verified decision-maker contacts tracked across these 162 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.