Company lists · Data refreshed September 2026

Top 25 Connected tv advertising agencies based in London, United Kingdom

Name: Connected tv advertising agencies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 8, 2026 67 companies tracked

RevenueBase identified 67 connected tv advertising agencies headquartered in London, United Kingdom as of September 2026 and tracks 745 professional contacts across them, including 279 with verified work emails and 62 with mobile numbers. London is the largest hub.

This list covers connected tv advertising agencies 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 8, 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 8, 2026 86% judged on-target in blind review

67Companies

745Contacts tracked

279Verified emails

62Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest connected tv advertising agencies based in London, United Kingdom

Ranked by team size

Top 25 of 67 connected tv advertising agencies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 8, 2026. RevenueBase Smart Search rates how each company's information relates to connected tv advertising 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	FX Digital	Strong evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	77 contacts →
	Strong evidence “FX Digital is a London-based Connected TV-first and OTT app technology company, helping your brand reach millions of new customers by building and launching premium quality CTV…” Source: RevenueBase Database · checked Sep 8, 2026
2	AMS Media Group	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	50 contacts →
	Partial evidence “From our office in London & Leeds, we seamlessly plan and buy media across all channels: digital, TV, cinema, OOH, radio, print, social and search.” Source: RevenueBase Database · checked Sep 8, 2026
3	PEACH	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	201-500	44 contacts →
	Indirect evidence “Peach is working to radically simplify ad workflows.” Source: RevenueBase Database · checked Sep 8, 2026
4	Unruly	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	501-1,000	39 contacts →
	Partial 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 8, 2026
5	Thinkbox	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	24 contacts →
	Partial evidence “Thinkbox is the marketing body for commercial TV in the UK, in all its forms.” Source: RevenueBase Database · checked Sep 8, 2026
6	Encore Digital Media	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	23 contacts →
	Indirect evidence “Do justice to the data, with the expertise to turn it into a nuanced programmatic campaign.” Source: RevenueBase Database · checked Sep 8, 2026
7	JWE Media	Strong evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	23 contacts →
	Strong evidence “At JWE Media, we take care of your marketing and advertising needs, from TV to Press, Out of Home to Digital, we manage the whole process ensuring we save you time and money.” Source: RevenueBase Database · checked Sep 8, 2026
8	Broadlab	Strong evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	22 contacts →
	Strong evidence “Broadlab provides a single point of access to the whole of the Addressable TV advertising landscape for agencies and their clients.” Source: RevenueBase Database · checked Sep 8, 2026
9	Hoopla Digital LTD	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	18 contacts →
	Partial 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 8, 2026
10	Groupm Finecast	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	201-500	17 contacts →
	Partial evidence “Created by GroupM in 2017, Finecast, now part of GroupM Nexus (GroupM's leading global performance group), is the group's leading addressable TV company which enables advertisers…” Source: RevenueBase Database · checked Sep 8, 2026
11	Audience2media	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	16 contacts →
	Partial evidence “Audience2Media is an Advertising Technology based company with offices in the UK and Asia, delivering data driven campaigns across all media channels, applying an innovative…” Source: RevenueBase Database · checked Sep 8, 2026
12	Agenda21	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	16 contacts →
	Indirect evidence “agenda21 is an award-winning digital media agency.” Source: RevenueBase Database · checked Sep 8, 2026
13	Media15	Strong evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	12 contacts →
	Strong evidence “Media15 is a fully independent Advertising Sales Agency providing commercial representation for TV stations broadcasting in the UK on Sky, Freeview, Freesat, Virgin Media & IPTV.” Source: RevenueBase Database · checked Sep 8, 2026
14	360 Media Sales LTD	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	12 contacts →
	Indirect evidence “360 Media Sales is a multi-cultural media specialist, helping advertisers unlock brand growth across its premium portfolio of culturally diverse audiences and content.” Source: RevenueBase Database · checked Sep 8, 2026
15	Media16	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	11 contacts →
	Partial evidence “We connect brands with communities across the CTV marketplace.” Source: RevenueBase Database · checked Sep 8, 2026
16	Formula Media	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	11 contacts →
	Indirect evidence “We are the new media experts.” Source: RevenueBase Database · checked Sep 8, 2026
17	MCBD	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	51-200	11 contacts →
	Indirect evidence “We merged with Dare Digital in January 2011 and are now known as Dare.” Source: RevenueBase Database · checked Sep 8, 2026
18	RED Media	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	9 contacts →
	Indirect evidence “At Red Media+, we’ve been on a mission lately, to make buying CTV as simple as possible in an increasingly complex and fragmented market.” Source: RevenueBase Database · checked Sep 8, 2026
19	Admongrel	Strong evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	9 contacts →
	Strong evidence “Admongrel is an end-to-end service provider for the fast-growing Connected TV Industry CREATE Concept development and creation of hybrid services that engage audiences and also…” Source: RevenueBase Database · checked Sep 8, 2026
20	Crate Media Group	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	8 contacts →
	Partial evidence “We specialise in Display, Social, Native, Video, Search, Programmatic TV, Digital Radio & Digital Out of Home, alongside Creative services, seamlessly unifying cross-channel…” Source: RevenueBase Database · checked Sep 8, 2026
21	Infinitum Entertainment	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	1-10	8 contacts →
	Indirect evidence “Infinitum is a television and communications investment Group.” Source: RevenueBase Database · checked Sep 8, 2026
22	Lightbox TV	Strong evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	8 contacts →
	Strong evidence “LightBox TV is the first independent management solution for marketers and media buyers running addressable TV advertising campaigns in connected TV environments.” Source: RevenueBase Database · checked Sep 8, 2026
23	SBS	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	8 contacts →
	Indirect evidence “Programmatic was built to make media smarter.” Source: RevenueBase Database · checked Sep 8, 2026
24	Fast TV	Indirect evidence	London, United KingdomHQ checked Sep 8, 2026	1-10	8 contacts →
	Indirect evidence “Our Three Fast Channels: Tailored Content for Every Viewer.” Source: RevenueBase Database · checked Sep 8, 2026
25	Integral Stream	Partial evidence	London, United KingdomHQ checked Sep 8, 2026	11-50	7 contacts →
	Partial evidence “Introducing independent data driven Advanced TV platform for all screen vide.” Source: RevenueBase Database · checked Sep 8, 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: connected tv advertising 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 connected tv advertising agencies.
Partial evidence: Its own public description names part of connected tv advertising agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name connected tv advertising 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 67 connected tv advertising agencies based in London, United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 279 reachable decision-makers.

Free signup · no credit card

View the full list →

Connected tv advertising agencies based in London, United Kingdom at a glance

As of Sep 8, 2026

37.4%Verified-email coverage

8.3%Mobile-number coverage

11.1Average contacts per company

11-50Median size (employees)

134.3%Largest-city concentration · London

Sep 8, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

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

Email last verified

Median 11.0d

2550–30

2331–60

061–90

090–180

1180+

Company record updated

Median 60.0d

00–30

38431–60

26461–90

5190–180

46180+

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 connected tv advertising 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 London, United Kingdom whose own description of what they do matches “connected tv advertising 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 connected tv advertising 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 connected tv advertising agencies, 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, 279 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 8, 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.

Connected tv advertising agencies by metro in the United Kingdom

Connected tv advertising agencies in London90

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 connected tv advertising 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 connected tv advertising agencies are there based in London, United Kingdom?

RevenueBase identified 67 connected tv advertising agencies 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?

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

Which city has the most connected tv advertising agencies?

London leads with 90 headquartered companies, followed by Bristol (5) and Manchester (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 279 verified decision-maker contacts tracked across these 67 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 8, 2026.

Ready to reach these companies? Verified emails and direct dials for all 67 connected tv advertising agencies based in London, United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Connected tv advertising agencies by geography

Browse the directory

Browse: Companies home · Connected tv advertising agencies in United Kingdom · All United Kingdom lists · All Connected tv advertising agencies lists · New lists

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.