Company lists · Data refreshed November 2026

Top 23 B2B agencies based in the United Kingdom

Name: B2B agencies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 13,421 companies tracked

RevenueBase identified 13,421 company matches for B2B agencies associated with the United Kingdom as of November 2026 and tracks 147,889 professional contacts across them, including 38,643 with verified work emails. London is the largest hub.

This list covers company matches for B2B agencies associated with the 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 November 6, 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 Nov 6, 2026 How this list was built

13,421Companies

147,889Contacts tracked

38,643Verified emails

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The 23 largest B2B agencies based in the United Kingdom

Ranked by team size

Top 23 of 13,421 company matches for B2B agencies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	HH Global	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	6,082 contacts →
	Exact match “HH Global is the global leader in tech-enabled creative production and procurement.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Essencemediacom	Exact match	London, United KingdomHQ recorded Nov 6, 2026	10001+	2,966 contacts →
	Exact match “We discover the breakthroughs that brands need to win.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	CARAT	Exact match	London, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	2,313 contacts →
	Exact match “Carat is the world’s first media agency and is privileged to work with some of today’s most storied and innovative brands.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Marketizon	Exact match	London, United KingdomHQ recorded Nov 6, 2026	n/a	1,989 contacts →
	Exact match “Marketizon is the leader in developing innovative, multi-channel marketing technologies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	GDS Group	Exact match	Bristol, United KingdomHQ recorded Nov 6, 2026	501-1,000	1,059 contacts →
	Exact match “With 30 years of expertise, GDS is your pipeline partner, offering bespoke event services that drive business outcomes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Currys Business	Exact match	Uk, United KingdomHQ recorded Nov 6, 2026	201-500	916 contacts →
	Exact match “At Currys Business, we help UK organisations choose, buy and manage the right technology, with expert support you can rely on.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	CPM UK	Exact match	Thame, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	905 contacts →
	Exact match “CPM is an international.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Linney	Exact match	Mansfield, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	689 contacts →
	Exact match “We’re Linney, a connected marketing partner helping brands turn complexity into clarity across digital, physical and ecommerce channels.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Anything IS Possible	Exact match	Brighton And Hove, United KingdomHQ recorded Nov 6, 2026	n/a	672 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Form Worldwide	Exact match	London, United KingdomHQ recorded Nov 6, 2026	n/a	628 contacts →
	Exact match “Form Worldwide is a London-based global marketing communications agency with a digital edge.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Kitchen	Exact match	London, United KingdomHQ recorded Nov 6, 2026	n/a	608 contacts →
	Exact match “Welcome to Kitchen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Library	Exact match	Brighton, United KingdomHQ recorded Nov 6, 2026	n/a	596 contacts →
	Exact match “Welcome to Library.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Closerstill Media	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	589 contacts →
	Exact match “At CloserStill, we strive to deliver the best.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Karla Otto	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	549 contacts →
	Exact match “WHO WE ARE Founded in 1982, Karla Otto is a full-service brand-building agency, operating from fifteen cities across the globe, Milan, Paris, London, Munich, Dubai, Riyadh…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Ogilvy UK	Exact match	United KingdomHQ recorded Nov 6, 2026	501-1,000	532 contacts →
	Exact match “Ogilvy UK inspires brands and people to impact the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	AMV Bbdo	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	531 contacts →
	Exact match “We are a creative agency that solves big business problems for brands with big ambitions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Purple	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	481 contacts →
	Exact match “Purple is independent in philosophy, attitude and operation –offering a boutique in-house approach, the strategic requirements of each client are individually tailored from the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	B2B Marketing	Exact match	London, United KingdomHQ recorded Nov 6, 2026	n/a	474 contacts →
	Exact match “B2B Marketing is a professional community where all B2B marketers can easily communicate with like-minded industry peers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Qualifa	Exact match	Brighton, United KingdomHQ recorded Nov 6, 2026	51-200	453 contacts →
	Exact match “We are an award winning multilingual lead generation and market research service provider for B2B publishing, marketing, events and tech companies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	MBA	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	448 contacts →
	Exact match “MBA: The Acceleration Agents, where digital and direct interconnect.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Gravity Global	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	445 contacts →
	Exact match “Hi, we're Gravity - the world’s most awarded brand-to-demand marketing agency!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Entourage	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	431 contacts →
	Exact match “In a world where everyone’s shouting the same thing, whisper something truly distinctive in all the right ears.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	MVF	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	428 contacts →
	Exact match “MVF powers growth for our clients by connecting them to potential customers.” Recorded in the RevenueBase company graph · Nov 6, 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 “B2B agencies”. 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 23 of 13,421 B2B agencies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 38,643 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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B2B agencies based in the United Kingdom at a glance

As of Nov 6, 2026

26.1%Verified-email coverage

11.0Average contacts per company

1-10Median size (employees)

34.6%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

9,551

11-50

3,022

51-200

581

201-500

100

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 13,421 companies.

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 the United Kingdom whose business descriptions match “B2B agencies” 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 38,643 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 November 6, 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.

B2B agencies by metro

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 “B2B agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many B2B agencies are there based in the United Kingdom?

RevenueBase identified 13,421 company matches for B2B agencies associated with the United Kingdom as of November 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?

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

Which city has the most B2B agencies?

London leads with 4642 company records, followed by Manchester (522) and Birmingham (274).

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 38,643 professional contacts with verified work emails tracked across these 13,421 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 November 6, 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.