Company lists · Data refreshed September 2026

Top 25 Advertising agencies specializing in streaming companies based in the United Kingdom

RevenueBase identified 3,745 advertising agencies specializing in streaming companies headquartered in the United Kingdom as of September 2026 and tracks 51,676 professional contacts across them, including 14,338 with verified work emails and 5,057 with mobile numbers. London is the largest hub.

This list covers advertising agencies specializing in streaming companies 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 28, 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 28, 2026 86% judged on-target in blind review
3,745Companies
51,676Contacts tracked
14,338Verified emails
5,057Mobile numbers
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The 25 largest advertising agencies specializing in streaming companies based in the United Kingdom

Ranked by team size
Top 25 of 3,745 advertising agencies specializing in streaming companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to advertising agencies specializing in streaming companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20265,001-10,0003,247 contacts →

Indirect evidence

“Hello.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,0002,503 contacts →

Indirect evidence

“Tag is an end-to-end production company, making ideas land for every brand.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20265,001-10,0002,366 contacts →

Indirect evidence

“iProspect, a dentsu company, is a leading global digital-first media agency.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20265,001-10,0002,182 contacts →

Indirect evidence

“Carat is the world’s first media agency and is privileged to work with some of today’s most storied and innovative brands.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20265,001-10,000941 contacts →

Indirect evidence

“Welcome to dentsu X.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceLeeds, United KingdomHQ checked Sep 28, 2026n/a811 contacts →

Indirect evidence

“Uber means over, above more than.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026n/a654 contacts →

Indirect evidence

“The Mill is TransPerfect's creative studio built on decades of award-winning excellence and designed for a world where craft must scale.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceMansfield, United KingdomHQ checked Sep 28, 20261,001-5,000649 contacts →

Indirect evidence

“We’re Linney, a connected marketing partner helping brands turn complexity into clarity across digital, physical and ecommerce channels.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500640 contacts →

Indirect evidence

“Influencer is a global creator marketing agency on a mission to shape the future of marketing by humanizing brands.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceBrighton And Hove, United KingdomHQ checked Sep 28, 202651-200532 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500527 contacts →

Indirect evidence

“MG OMD, part of Omnicom Media, brings innovation, insight and creativity to the world of media.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500457 contacts →

Partial evidence

“We are a Global digital media agency specializing in taking a human approach to connecting brands with people across all channels.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500455 contacts →

Indirect evidence

“We’re the original pioneers in connected commerce marketing.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500439 contacts →

Indirect evidence

“TMW, part of Accenture Song, is an integrated creative agency.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500435 contacts →

Indirect evidence

“We are an award-winning social media agency, multi-platform production company, and digital media network, specialising in building and connecting with audiences, delivering…”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026501-1,000416 contacts →

Indirect evidence

“EssenceMediacom is WPP Media's newest and largest agency, committed to delivering breakthroughs for brands in the New Communications Economy.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-200299 contacts →

Indirect evidence

“WE ARE A GLOBAL CREATIVE DIGITAL AGENCY At DMS, we bring together a powerhouse of creative, media intelligence and digital disciplines under one roof to support world-class…”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500295 contacts →

Indirect evidence

“the7stars is the UK’s largest independent media agency, offering the best people, the best service and the best creative media campaigns.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceLondon, United KingdomHQ checked Sep 28, 2026501-1,000282 contacts →

Partial evidence

“At NewBase we provide expert and independent marketing and advertising services across all media channels globally.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500269 contacts →

Indirect evidence

“Greenpark is a global, award-winning digital agency.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceLeeds, United KingdomHQ checked Sep 28, 2026n/a255 contacts →

Indirect evidence

“You Grow.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,000247 contacts →

Indirect evidence

“eg+ is now part of OCX.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026n/a220 contacts →

Indirect evidence

“Target Media is the UK's leading independent entertainment and lifestyle media agency, with over sixty clients in the Games, Film, Youth, Home Entertainment and Leisure industries.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceHolywood, United KingdomHQ checked Sep 28, 202651-200199 contacts →

Indirect evidence

“We create ideas that stick.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-200192 contacts →

Indirect evidence

“Vidsy helps global brands achieve business goals with effective video ads, created efficiently and consistently for digital.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 3,745 advertising agencies specializing in streaming companies based in the United Kingdom

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Advertising agencies specializing in streaming companies based in the United Kingdom at a glance

As of Sep 28, 2026
27.7%Verified-email coverage
9.8%Mobile-number coverage
13.8Average contacts per company
1-10Median size (employees)
45.4%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
2,701
11-50
815
51-200
161
201-500
36
501-1,000
7
1,001-5,000
9
5,001-10,000
6

Freshness & accuracy

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

Email last verified

Median 30.0d

Company record updated

Median 92.0d

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 advertising agencies specializing in streaming companies, 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 “advertising agencies specializing in streaming companies”. 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 advertising agencies specializing in streaming companies), 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 advertising agencies specializing in streaming companies, 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, 14,338 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 28, 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.

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 advertising agencies specializing in streaming companies, 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 advertising agencies specializing in streaming companies are there based in the United Kingdom?

RevenueBase identified 3,745 advertising agencies specializing in streaming companies 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?

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

Which city has the most advertising agencies specializing in streaming companies?

London leads with 1700 headquartered companies, followed by Manchester (154) and Birmingham (88).

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 14,338 verified decision-maker contacts tracked across these 3,745 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 28, 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.