Company lists · Data verified August 2026

Top 25 Digital media buying platforms based in the United Kingdom

Name: Digital media buying platforms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 434 companies tracked

There are 434 digital media buying platforms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 8,278 professional contacts across them, including 2,640 with verified work emails and 925 with mobile numbers. London is the largest hub.

This list covers digital media buying platforms headquartered in the 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.

434Companies

8,278Contacts tracked

2,640Verified emails

925Mobile numbers

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The 25 largest digital media buying platforms based in the United Kingdom

Ranked by team size

Top 25 of 434 digital media buying platforms based in the 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	Gumgum	London	501-1,000	532	317
3	VERVE	London	501-1,000	443	180
4	Loopme	Manchester	201-500	401	237
5	Creatoriq	London	201-500	340	189
6	Expandi Group	London	201-500	155	46
7	Ozone The Audience Connection Platform	London	51-200	145	109
8	Crimtan	London	51-200	128	94
9	Admixer	London	201-500	98	15
10	DCMN	London	51-200	94	64
11	REVX	London	51-200	88	44
12	Sparteo	London	51-200	86	41
13	Efficient Frontier	London	201-500	85	2
14	S4 Capital Group	n/a	5,001-10,000	74	27
15	Admaxim INC	London	51-200	74	27
16	Onetag	London	51-200	71	61
17	Nest Commerce	London	51-200	69	50
18	Zitcha	London	51-200	65	54
19	Sharethrough	London	51-200	62	38
20	Multilocal	London	51-200	57	38
21	Framen	London	51-200	56	3
22	OCM Digital Media	London	51-200	54	38
23	DAX	London	201-500	51	10
24	Publisher Collective	Bath	51-200	46	37
25	PEACH	London	201-500	46	22

Showing 25 of 434 digital media buying platforms based in the United Kingdom

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Digital media buying platforms based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 271 HQs

925Contacts with mobile numbers

6Emails re-verified in last 30 days

Companies by employee count

1-10

199

11-50

167

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Digital media buying platforms by metro

Metro	Companies
Digital media buying platforms in London	271
Digital media buying platforms in Manchester	22
Digital media buying platforms in Birmingham	9
Digital media buying platforms in Leeds	6
Digital media buying platforms in Edinburgh	5
Digital media buying platforms in Belfast	5
Digital media buying platforms in Bath	5

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 “digital media buying platforms”, with match quality audited by blind human judging, and headquartered in the 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; 6 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 digital media buying platforms are there based in the United Kingdom?

There are 434 digital media buying platforms headquartered in the 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 digital media buying platforms?

London leads with 271 headquartered companies, followed by Manchester (22) and Birmingham (9).

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 2,640 verified decision-maker contacts tracked across these 434 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.