Company lists · Data refreshed September 2026

Top 25 Demand side platform agencies based in the United Kingdom

Name: Demand side platform agencies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 459 companies tracked

RevenueBase identified 459 demand side platform agencies headquartered in the United Kingdom as of September 2026 and tracks 7,222 professional contacts across them, including 1,711 with verified work emails and 592 with mobile numbers. London is the largest hub.

This list covers demand side platform agencies headquartered in the 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 1, 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 Sep 1, 2026 86% judged on-target in blind review

459Companies

7,222Contacts tracked

1,711Verified emails

592Mobile numbers

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The 25 largest demand side platform agencies based in the United Kingdom

Ranked by team size

Top 25 of 459 demand side platform agencies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to demand side platform agencies: 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	Indirect evidence	London, United Kingdom	501-1,000	443 contacts →
	Indirect 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 Sep 1, 2026
2	Loopme	Indirect evidence	Manchester, United Kingdom	201-500	401 contacts →
	Indirect evidence “LoopMe is bringing brands into apps, powered by AI agents.” Source: RevenueBase Database · checked Sep 1, 2026
3	Expandi Group	Indirect evidence	London, United Kingdom	201-500	155 contacts →
	Indirect evidence “Expandi Group is a global leader in AdTech, MarTech and Managed Services.” Source: RevenueBase Database · checked Sep 1, 2026
4	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 Sep 1, 2026
5	Crimtan	Indirect evidence	London, United Kingdom	51-200	128 contacts →
	Indirect evidence “Crimtan was established in 2009 with a clear mission: to be a trusted partner for brands navigating the complex world of programmatic advertising.” Source: RevenueBase Database · checked Sep 1, 2026
6	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 Sep 1, 2026
7	DCMN	Indirect evidence	London, United Kingdom	51-200	94 contacts →
	Indirect evidence “DCMN is the agency for Total Video Brandformance: One video strategy to scale your brand across every screen.” Source: RevenueBase Database · checked Sep 1, 2026
8	Smarter Ecommerce Smec	Indirect evidence	London, United Kingdom	51-200	92 contacts →
	Indirect evidence “Smarter Ecommerce (smec) is a leading PPC software provider and performance marketing agency that helps ecommerce brands achieve better business outcomes through AI-driven…” Source: RevenueBase Database · checked Sep 1, 2026
9	REVX	Indirect evidence	London, United Kingdom	51-200	88 contacts →
	Indirect 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 Sep 1, 2026
10	Efficient Frontier	Indirect evidence	London, United Kingdom	201-500	85 contacts →
	Indirect evidence “Maximum advertising performance and returns.” Source: RevenueBase Database · checked Sep 1, 2026
11	S4 Capital Group	Indirect evidence	United Kingdom	5,001-10,000	74 contacts →
	Indirect evidence “S4Capital plc is the tech-led, new age/new era digital advertising and marketing services company, established by Sir Martin Sorrell in May 2018.” Source: RevenueBase Database · checked Sep 1, 2026
12	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 Sep 1, 2026
13	Nest Commerce	Indirect evidence	London, United Kingdom	51-200	69 contacts →
	Indirect evidence “Nest Commerce is a technology-led agency working with brands like Urban Outfitters, Hims and Damson Madder.” Source: RevenueBase Database · checked Sep 1, 2026
14	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 Sep 1, 2026
15	Publisher Collective	Indirect evidence	Bath, United Kingdom	51-200	46 contacts →
	Indirect evidence “We connect brands to audiences and publishers to revenue.” Source: RevenueBase Database · checked Sep 1, 2026
16	Adserve	Indirect evidence	London, United Kingdom	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 1, 2026
17	Aitarget Tech	Partial evidence	London, United Kingdom	51-200	33 contacts →
	Partial evidence “Aitarget Tech is a paid social platform for dynamic ads and personalized videos at scale.” Source: RevenueBase Database · checked Sep 1, 2026
18	Pattrns	Indirect evidence	London, United Kingdom	11-50	32 contacts →
	Indirect evidence “Pattrns was founded on years of first class experience in all elements of biddable media from Search Ads 360, Google Ads and Meta Ads.” Source: RevenueBase Database · checked Sep 1, 2026
19	MADS	Indirect evidence	London, United Kingdom	11-50	32 contacts →
	Indirect evidence “MADS is a leading, independent (mobile) ad technology company and operates in more than 30 countries world-wide.” Source: RevenueBase Database · checked Sep 1, 2026
20	Rocketer	Partial evidence	Leeds, United Kingdom	11-50	25 contacts →
	Partial evidence “Rocketer are a multi platform Martech advertiser specialising prominently in the financial services vertical servicing clients on a global scale.” Source: RevenueBase Database · checked Sep 1, 2026
21	Queryclick	Indirect evidence	London London, United Kingdom	51-200	25 contacts →
	Indirect evidence “QueryClick is a high performance digital marketing agency with unique, revolutionary software that allows complete elimination of wasted spend and automated new customer…” Source: RevenueBase Database · checked Sep 1, 2026
22	Naritive	Indirect evidence	London, United Kingdom	51-200	22 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 1, 2026
23	Scoota	Partial evidence	London, United Kingdom	11-50	17 contacts →
	Partial evidence “Scoota is a creative-first omni-channel programmatic platform.” Source: RevenueBase Database · checked Sep 1, 2026
24	ADS And More	Indirect evidence	London, United Kingdom	11-50	16 contacts →
	Indirect evidence “Ads and More Group is an international holding operating globally in programmatic marketing, built to deliver measurable growth through data, technology, and disciplined execution.” Source: RevenueBase Database · checked Sep 1, 2026
25	Elite E-Commerce	Indirect evidence	Wolverhampton, United Kingdom	11-50	15 contacts →
	Indirect evidence “EE Group is a competitive and results-oriented organization with a focus on helping both our brand partners and our own operated brands achieve success in the digital marketplace.” Source: RevenueBase Database · checked Sep 1, 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: demand side platform agencies. 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 demand side platform agencies.
Partial evidence: Its own public description names part of demand side platform agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name demand side platform agencies. 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 459 demand side platform agencies based in the United Kingdom

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Demand side platform agencies based in the United Kingdom at a glance

As of Sep 1, 2026

23.7%Verified-email coverage

8.2%Mobile-number coverage

15.7Average contacts per company

1-10Median size (employees)

56.6%Largest-city concentration · London

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

266

11-50

155

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 demand side platform agencies, 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 the United Kingdom whose own description of what they do matches “demand side platform agencies”. 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 demand side platform agencies), 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 demand side platform agencies, and records with no verified work email. Companies headquartered outside United Kingdom 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, 1,711 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 1, 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.

Demand side platform agencies by metro

Demand side platform agencies in London260

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 demand side platform agencies, 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 demand side platform agencies are there based in the United Kingdom?

RevenueBase identified 459 demand side platform agencies headquartered in the 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?

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

Which city has the most demand side platform agencies?

London leads with 260 headquartered companies, followed by Manchester (14) and Birmingham (11).

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 1,711 verified decision-maker contacts tracked across these 459 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 1, 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.