Company lists · Data refreshed September 2026

Top 25 Youtube advertising agencies for B2B based in London, United Kingdom

Name: Youtube advertising agencies for B2B based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 1,349 companies tracked

RevenueBase identified 1,349 company matches for youtube advertising agencies for B2B associated with London, United Kingdom as of September 2026 and tracks 18,064 professional contacts across them, including 2,555 with verified work emails and 1,488 with mobile numbers. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for youtube advertising agencies for B2B associated with London, United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 13, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Sep 13, 2026 How this list was built

1,349Companies

18,064Contacts tracked

2,555Verified emails

1,488Mobile numbers

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The 25 largest youtube advertising agencies for B2B based in London, United Kingdom

Ranked by team size

Top 25 of 1,349 company matches for youtube advertising agencies for B2B based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 13, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Influencer	Exact match	London, United KingdomHQ recorded Sep 13, 2026	201-500	640 contacts →
	Exact match “Influencer is a global creator marketing agency on a mission to shape the future of marketing by humanizing brands.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
2	M C Saatchi Performance	Exact match	London, United KingdomHQ recorded Sep 13, 2026	201-500	457 contacts →
	Exact match “We are a Global digital media agency specializing in taking a human approach to connecting brands with people across all channels.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
3	Greenpark	Exact match	London, United KingdomHQ recorded Sep 13, 2026	201-500	269 contacts →
	Exact match “Greenpark is a global, award-winning digital agency.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
4	VIDSY	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	192 contacts →
	Exact match “Vidsy helps global brands achieve business goals with effective video ads, created efficiently and consistently for digital.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
5	Billion Dollar BOY	Exact match	London, United KingdomHQ recorded Sep 13, 2026	201-500	182 contacts →
	Exact match “Billion Dollar Boy is a global social agency with Creator Instinct™.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
6	ALL Response Media	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	178 contacts →
	Exact match “All Response Media is the leading performance media planning and buying agency.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
7	Publicis PRO	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	139 contacts →
	Exact match “Publicis Pro is the specialist B2B marketing agency within Publicis Groupe, the world's number one marketing holding group.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
8	MOI Global	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	111 contacts →
	Exact match “We’re MOI Global – the Not-So-B2B agency.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
9	Havas CX Helia	Exact match	London, United KingdomHQ recorded Sep 13, 2026	201-500	107 contacts →
	Exact match “From pigeons to platforms, from news agency to integrated communications services, our story is one of constant reinvention.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
10	Finixio	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	96 contacts →
	Exact match “Finixio is UK based remote first Marketing & SEO Agency helping clients all over the world.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
11	Publitek	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	85 contacts →
	Exact match “Publitek is now part of Pretzl.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
12	The Media People	Exact match	London, United KingdomHQ recorded Sep 13, 2026	11-50	83 contacts →
	Exact match “Powered by our people, our campaigns put your audience first.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
13	Social Boost	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	79 contacts →
	Exact match “Social Boost has helped to grow more than 25 million real Followers, created content for 100+ brands, and generated over 300k sales leads.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
14	Substance Global	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	77 contacts →
	Exact match “Founded in 2003, Substance is an award-winning digital marketing agency.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
15	Nest Commerce	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	69 contacts →
	Exact match “Nest Commerce is a technology-led agency working with brands like Urban Outfitters, Hims and Damson Madder.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
16	Clicksco	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	66 contacts →
	Exact match “As a new chapter in our Digital Agency begins, we are also a fantastic place to work, with a reputation for discovering and nurturing some of the finest minds in the business…” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
17	Wild Vision	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	63 contacts →
	Exact match “Wild Vision's roster showcases some of the most successful content creators in the industry.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
18	OCM Digital Media	Exact match	London, United KingdomHQ recorded Sep 13, 2026	51-200	54 contacts →
	Exact match “OCM is a leading adtech agency providing solutions to advertisers, advertising agencies and to web, mobile & video publishers.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
19	The Marketing Practice	Exact match	London, United KingdomHQ recorded Sep 13, 2026	501-1,000	51 contacts →
	Exact match “At The Marketing Practice, we’ve combined the best B2B specialists from across the globe in one business, with capabilities that stretch through the funnel, from brand to demand…” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
20	Harvest Digital	Exact match	London, United KingdomHQ recorded Sep 13, 2026	11-50	48 contacts →
	Exact match “We are a leading independent digital media agency.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
21	Outsider	Exact match	London, United KingdomHQ recorded Sep 13, 2026	11-50	46 contacts →
	Exact match “It all started 30 years ago.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
22	BAMBU	Exact match	London, United KingdomHQ recorded Sep 13, 2026	n/a	45 contacts →
	Exact match “Bambu is an online marketing and advertising agency based in London, working with startup and growth brands across the UK, Europe and North America, founded by two ex-WPP…” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
23	Beautiful Digital	Exact match	London, United KingdomHQ recorded Sep 13, 2026	11-50	44 contacts →
	Exact match “Beautiful Digital is a full service digital marketing agency.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
24	The Think Tank	Exact match	London, United KingdomHQ recorded Sep 13, 2026	11-50	44 contacts →
	Exact match “We are The Think Tank: a fully-integrated, result-oriented agency based in Holborn, London.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase
25	Kinase	Exact match	London, United KingdomHQ recorded Sep 13, 2026	11-50	39 contacts →
	Exact match “Kinase is a leading Digital Marketing Agency providing services to some of the UK’s top companies.” Recorded in the RevenueBase company graph · Sep 13, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “youtube advertising agencies for B2B”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,349 youtube advertising agencies for B2B based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 2,555 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Youtube advertising agencies for B2B based in London, United Kingdom at a glance

As of Sep 13, 2026

14.1%Verified-email coverage

8.2%Mobile-number coverage

13.4Average contacts per company

1-10Median size (employees)

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

916

11-50

357

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Freshness & accuracy

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

Email last verified

Median 15.0d

2,0080–30

52031–60

1561–90

190–180

11180+

Company record updated

Median 79.0d

00–30

5,67231–60

9,41161–90

2,24790–180

734180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with London, United Kingdom whose business descriptions match “youtube advertising agencies for B2B” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,555 professional contacts with verified work emails across the full matched dataset. 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 13, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Youtube advertising agencies for B2B by metro in the United Kingdom

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “youtube advertising agencies for B2B”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many youtube advertising agencies for B2B are there based in London, United Kingdom?

RevenueBase identified 1,349 company matches for youtube advertising agencies for B2B associated with London, United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Influencer tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most youtube advertising agencies for B2B?

London leads the United Kingdom with 515 company records, followed by Manchester (70) and Birmingham (46).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,555 professional contacts with verified work emails tracked across these 1,349 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 13, 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 SmartSearch, 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.