Company lists · Data refreshed November 2026

Top 25 Outsource marketing services based in the United Kingdom

Name: Outsource marketing services 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 4,800 companies tracked

RevenueBase identified 4,800 company matches for outsource marketing services associated with the United Kingdom as of November 2026 and tracks 31,772 professional contacts across them, including 7,544 with verified work emails. London is the largest hub.

This list covers company matches for outsource marketing services 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

4,800Companies

31,772Contacts tracked

7,544Verified emails

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The 25 largest outsource marketing services based in the United Kingdom

Ranked by team size

Top 25 of 4,800 company matches for outsource marketing services 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	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
2	CPM International	Exact match	Thame, United KingdomHQ recorded Nov 6, 2026	10001+	901 contacts →
	Exact match “CPM is an international sales outsourcing and customer experience agency.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Innerworkings	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	819 contacts →
	Exact match “Founded in 1991, HH Global is a global outsourced marketing execution provider.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	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
5	LINK	Exact match	Hong Kong, United KingdomHQ recorded Nov 6, 2026	201-500	609 contacts →
	Exact match “We are Link: your positive change partner.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	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
7	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
8	Astute.com	Exact match	Bournemouth, United KingdomHQ recorded Nov 6, 2026	201-500	293 contacts →
	Exact match “Welcome to Astute.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	GO Inspire Group	Exact match	Leicester, United KingdomHQ recorded Nov 6, 2026	201-500	227 contacts →
	Exact match “Welcome to Go Inspire - Your Marketing Performance Partner!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Quantum Marketing	Exact match	Reading, United KingdomHQ recorded Nov 6, 2026	51-200	211 contacts →
	Exact match “Quantum Marketing hangs its hat on one simple promise: one agency, one brief, and one measure of success.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Cc33 Global Limited	Exact match	Sheffield, United KingdomHQ recorded Nov 6, 2026	201-500	197 contacts →
	Exact match “CC33 is a boutique agency with big ideas providing marketing solutions tailored to specifically meet your sales and marketing needs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Publicis PRO	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	151 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 · Nov 6, 2026 · View company records in RevenueBase
13	TBT Marketing	Exact match	Frome, United KingdomHQ recorded Nov 6, 2026	51-200	145 contacts →
	Exact match “The B2B marketing agency built for complex tech sales.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	GCL	Exact match	Birmingham, United KingdomHQ recorded Nov 6, 2026	51-200	130 contacts →
	Exact match “GCL, with its unique, non-scripted approach to telemarketing and related marketing services, has for over 30 years established an enviable reputation for providing winning lead…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	E Intelligence	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	124 contacts →
	Exact match “e intelligence is a renowned global leader in the digital marketing space.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	AIR Marketing	Exact match	Exeter, United KingdomHQ recorded Nov 6, 2026	51-200	120 contacts →
	Exact match “Established in 2016, Air Marketing is a specialist B2B outsourced sales and lead generation partner.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Durhamlane	Exact match	Newcastle Upon Tyne, United KingdomHQ recorded Nov 6, 2026	51-200	108 contacts →
	Exact match “More than SDR Outsourcing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Pursuit Marketing	Exact match	Glasgow, United KingdomHQ recorded Nov 6, 2026	51-200	106 contacts →
	Exact match “Pursuit Marketing are Experts in Demand Generation, Telemarketing, Digital Marketing and Creative Design - your 360 Marketing Provider.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Leap Loveurope And Partners	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	103 contacts →
	Exact match “With a reputation for precision, reliability, and excellence, leap are the go to Marketing Execution Partner.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	HPS Group	Exact match	Marlow, United KingdomHQ recorded Nov 6, 2026	51-200	100 contacts →
	Exact match “HPS is a full-service marketing group in the truest sense of the phrase.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	The Media People	Exact match	London, United KingdomHQ recorded Nov 6, 2026	11-50	96 contacts →
	Exact match “Powered by our people, our campaigns put your audience first.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Accord Marketing	Exact match	Holborn, United KingdomHQ recorded Nov 6, 2026	51-200	90 contacts →
	Exact match “We’re an award-winning, proudly independent marketing agency.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Brainsouls	Exact match	Birmingham, United KingdomHQ recorded Nov 6, 2026	51-200	87 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Konica Minolta Marketing Services	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	84 contacts →
	Exact match “Head to Indicia Worldwide for our exciting new profile, packed with great content.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Alliance Sales Support Services Limited	Exact match	Tunbridge Wells, United KingdomHQ recorded Nov 6, 2026	51-200	82 contacts →
	Exact match “Alliance Sales Support Services provides effective and sustainable sales solutions for your business.” 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 “outsource marketing services”. 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 4,800 outsource marketing services based in the United Kingdom

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Outsource marketing services based in the United Kingdom at a glance

As of Nov 6, 2026

23.7%Verified-email coverage

6.6Average contacts per company

1-10Median size (employees)

24.8%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

3,759

11-50

834

51-200

143

201-500

501-1,000

1,001-5,000

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 4,800 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 “outsource marketing services” 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 7,544 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.

Outsource marketing services 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 “outsource marketing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outsource marketing services are there based in the United Kingdom?

RevenueBase identified 4,800 company matches for outsource marketing services 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?

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

Which city has the most outsource marketing services?

London leads with 1192 company records, followed by Manchester (186) and Birmingham (115).

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 7,544 professional contacts with verified work emails tracked across these 4,800 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.