Company lists · Data refreshed September 2026

Top 25 Marketing outsourcing companies based in the United Kingdom

Name: Marketing outsourcing companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 12,996 companies tracked

RevenueBase identified 12,996 company matches for marketing outsourcing companies associated with the United Kingdom as of September 2026 and tracks 100,818 professional contacts across them, including 23,139 with verified work emails and 8,053 with mobile numbers. London is the largest hub.

This list covers company matches for marketing outsourcing companies 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 September 5, 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 5, 2026 How this list was built

12,996Companies

100,818Contacts tracked

23,139Verified emails

8,053Mobile numbers

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

The 25 largest marketing outsourcing companies based in the United Kingdom

Ranked by team size

Top 25 of 12,996 company matches for marketing outsourcing companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 5, 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	Essencemediacom	Exact match	London, United KingdomHQ recorded Sep 5, 2026	10001+	3,692 contacts →
	Exact match “We discover the breakthroughs that brands need to win.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
2	APS Group	Exact match	Stockport, United KingdomHQ recorded Sep 5, 2026	501-1,000	1,152 contacts →
	Exact match “We’ve been delivering marketing and communications since 1961.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
3	Uber Agency	Exact match	Leeds, United KingdomHQ recorded Sep 5, 2026	n/a	811 contacts →
	Exact match “Uber means over, above more than.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
4	Linney	Exact match	Mansfield, United KingdomHQ recorded Sep 5, 2026	1,001-5,000	649 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 · Sep 5, 2026 · View company records in RevenueBase
5	Ogilvy UK	Exact match	United KingdomHQ recorded Sep 5, 2026	501-1,000	502 contacts →
	Exact match “Ogilvy UK inspires brands and people to impact the world.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
6	M C Saatchi Performance	Exact match	London, United KingdomHQ recorded Sep 5, 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 5, 2026 · View company records in RevenueBase
7	MVF	Exact match	London, United KingdomHQ recorded Sep 5, 2026	201-500	401 contacts →
	Exact match “MVF powers growth for our clients by connecting them to potential customers.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
8	Promodo Digital Agency	Exact match	Lincoln, United KingdomHQ recorded Sep 5, 2026	201-500	383 contacts →
	Exact match “Promodo is an award-winning performance marketing agency and a reliable partner for driving measurable results in eCommerce.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
9	DMS	Exact match	London, United KingdomHQ recorded Sep 5, 2026	51-200	299 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
10	ADD People	Exact match	Altrincham, United KingdomHQ recorded Sep 5, 2026	201-500	292 contacts →
	Exact match “We’re Add People, a team of digital marketing professionals dedicated to helping small to medium-sized businesses grow online.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
11	Newbase	Exact match	London, United KingdomHQ recorded Sep 5, 2026	501-1,000	282 contacts →
	Exact match “At NewBase we provide expert and independent marketing and advertising services across all media channels globally.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
12	Fabrick	Exact match	Maidstone, United KingdomHQ recorded Sep 5, 2026	n/a	269 contacts →
	Exact match “Fabrick is the 2021 Construction Marketing Awards Agency of the Year, with 40 years’ experience specialising exclusively in the construction and built environment sectors.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
13	Boutique	Exact match	Leeds, United KingdomHQ recorded Sep 5, 2026	n/a	255 contacts →
	Exact match “You Grow.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
14	Kitchen	Exact match	London, United KingdomHQ recorded Sep 5, 2026	n/a	229 contacts →
	Exact match “Welcome to Kitchen.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
15	Brave Bison	Exact match	London, United KingdomHQ recorded Sep 5, 2026	201-500	210 contacts →
	Exact match “A world where complexity is the only constant demands a new breed of company.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
16	GO Inspire Group	Exact match	Leicester, United KingdomHQ recorded Sep 5, 2026	201-500	210 contacts →
	Exact match “Welcome to Go Inspire - Your Marketing Performance Partner!” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
17	Bray Leino	Exact match	Devon, United KingdomHQ recorded Sep 5, 2026	201-500	187 contacts →
	Exact match “Increasing the size of your business.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
18	Impression	Exact match	Nottingham, United KingdomHQ recorded Sep 5, 2026	51-200	182 contacts →
	Exact match “We're a performance marketing agency setting the new standard of excellence through our people, our performance and our technology, with offices in Manchester, Nottingham, London…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
19	BIG Group	Exact match	London, United KingdomHQ recorded Sep 5, 2026	51-200	177 contacts →
	Exact match “Founded in 1991, with offices in Amsterdam, Bath, Dubai and London our award-winning employee-owned company has consistently ranked as one of the UK's leading independent digital…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
20	COOLR	Exact match	London, United KingdomHQ recorded Sep 5, 2026	51-200	176 contacts →
	Exact match “Coolr is an award-winning social media and influencer marketing agency, with offices in London.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
21	Cc33 Global Limited	Exact match	Sheffield, United KingdomHQ recorded Sep 5, 2026	201-500	172 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 · Sep 5, 2026 · View company records in RevenueBase
22	Ics-Digital	Exact match	Leeds, United KingdomHQ recorded Sep 5, 2026	51-200	168 contacts →
	Exact match “ICS-digital is a global SEO, content, advertising, translation & digital PR agency working in over 100 languages, across over 90 markets in the most highly regulated and highly…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
23	Expandi Group	Exact match	London, United KingdomHQ recorded Sep 5, 2026	201-500	155 contacts →
	Exact match “Expandi Group is a global leader in AdTech, MarTech and Managed Services.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
24	Krow Group	Exact match	London, United KingdomHQ recorded Sep 5, 2026	201-500	150 contacts →
	Exact match “At krow Group, our ideas are designed to make a genuine difference, building your brand and making it easier to buy by capturing and converting people’s attention.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
25	Connective3	Exact match	Leeds, United KingdomHQ recorded Sep 5, 2026	51-200	146 contacts →
	Exact match “We are a specialist performance marketing agency, and we deliver unrivalled performance for our clients on a global scale.” Recorded in the RevenueBase company graph · Sep 5, 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 “marketing outsourcing companies”. 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 12,996 marketing outsourcing companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 23,139 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Marketing outsourcing companies based in the United Kingdom at a glance

As of Sep 5, 2026

23.0%Verified-email coverage

8.0%Mobile-number coverage

7.8Average contacts per company

1-10Median size (employees)

29.8%Largest-city concentration · London

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

10,050

11-50

2,459

51-200

359

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

21,6490–30

1,37231–60

1361–90

1090–180

95180+

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 “marketing outsourcing companies” 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 23,139 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 5, 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.

Marketing outsourcing companies 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 “marketing outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many marketing outsourcing companies are there based in the United Kingdom?

RevenueBase identified 12,996 company matches for marketing outsourcing companies associated with the 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?

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

Which city has the most marketing outsourcing companies?

London leads with 3870 company records, followed by Manchester (481) and Birmingham (296).

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 23,139 professional contacts with verified work emails tracked across these 12,996 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 12,996 marketing outsourcing companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Marketing outsourcing companies by geography

Browse the directory

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.