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Company lists · Data refreshed September 2026

Top 25 Marketing outsourcing companies based in Leeds, United Kingdom

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 233 companies tracked

RevenueBase identified 233 marketing outsourcing companies headquartered in Leeds, United Kingdom as of September 2026 and tracks 3,104 professional contacts across them, including 722 with verified work emails. London is the largest hub.

This list covers marketing outsourcing companies headquartered in Leeds, 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, how directly it supports the match, and when it was last checked. 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
233Companies
3,104Contacts tracked
722Verified emails
Unlock all 233 companies Free signup · no credit card · 500 free credits

The 25 largest marketing outsourcing companies based in Leeds, United Kingdom

Ranked by team size
Top 25 of 233 marketing outsourcing companies based in Leeds, United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names marketing outsourcing companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Uber AgencyIndirect evidence
Leeds, United KingdomHQ checked Sep 5, 2026n/a811

“Uber means over, above more than.”

Source: company website · checked Sep 5, 2026
2
BoutiqueIndirect evidence
Leeds, United KingdomHQ checked Sep 5, 2026n/a255

“You Grow.”

Source: company website · checked Sep 5, 2026
3
Ics-DigitalIndirect evidence
Leeds, United KingdomHQ checked Sep 5, 202651-200168

“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…”

Source: company website · checked Sep 5, 2026
4
Connective3Partial evidence
Leeds, United KingdomHQ checked Sep 5, 202651-200146

“We are a specialist performance marketing agency, and we deliver unrivalled performance for our clients on a global scale.”

Source: company website · checked Sep 5, 2026
5
26pmxIndirect evidence
Leeds, United KingdomHQ checked Sep 5, 202651-200116

“At 26PMX, we help ambitious brands turn potential into performance.”

Source: company website · checked Sep 5, 2026
6
StickyeyesPartial evidence
Leeds, United KingdomHQ checked Sep 5, 2026201-50077

“Search Marketing | Content | Strategy Delivered by passionate people.”

Source: company website · checked Sep 5, 2026
7
Engage InteractiveIndirect evidence
Leeds, United KingdomHQ checked Sep 5, 202651-20064

“We’re Engage, the digital agency for those that demand attention.”

Source: company website · checked Sep 5, 2026
8
WolfendenPartial evidence
Leeds, United KingdomHQ checked Sep 5, 202611-5044

“We're Wolfenden, an independent performance marketing agency helping ambitious brands unlock sustainable growth through organic search, authority, digital PR, paid media, data and…”

Source: company website · checked Sep 5, 2026
9
Flaunt Digital B CorpPartial evidence
Leeds, United KingdomHQ checked Sep 5, 202611-5040

“We deliver unified strategies across SEO, Content Marketing, Paid Media, Web Development and Web Design, with experts available to consult with directly.#DigitalMarketing #SEO…”

Source: company website · checked Sep 5, 2026
10
FantasticPartial evidence
Leeds, United KingdomHQ checked Sep 5, 202611-5040

“Fantastic Media is a full service marketing agency based in Yorkshire.”

Source: company website · checked Sep 5, 2026
11
Modo25Partial evidence
Leeds, United KingdomHQ checked Sep 5, 202611-5034

“Ranked in the top 3% agencies, with Google Premier Partner status, we excel in all areas of digital marketing with a focus on supporting teams to bring their marketing in-house.”

Source: company website · checked Sep 5, 2026
12
ds.emotionPartial evidence
Leeds, United KingdomHQ checked Sep 5, 202611-5033

“With over 30 years experience, DS.Emotion help define and create compelling brands & highly effective marketing campaigns, which are delivered through strategically selected media…”

Source: company website · checked Sep 5, 2026
13
Bolser Digital AgencyIndirect evidence
Leeds, United KingdomHQ checked Sep 5, 202611-5028

“Bolser is an award-winning digital agency based in Leeds.”

Source: company website · checked Sep 5, 2026
14
ILK AgencyIndirect evidence
Leeds, United KingdomHQ checked Sep 5, 202611-5026

“ilk,(née Manifest) is an award-winning integrated agency specialising in all things strategy, branding, video, digital, design, PR & social.”

Source: company website · checked Sep 5, 2026
15
Creative Marketing ServicesPartial evidence
Leeds, United KingdomHQ checked Sep 5, 202611-5025

“We're a Leeds based advertising, marketing and design agency with an awesome track record of delivering results over four decades.”

Source: company website · checked Sep 5, 2026
16
Ima-HomeIndirect evidence
Leeds, United KingdomHQ checked Sep 5, 2026201-50024

“We’re IMA-HOME.”

Source: company website · checked Sep 5, 2026
17
Perfect StormPartial evidence
Leeds, United KingdomHQ checked Sep 5, 202611-5022

“We give marketing leaders the freedom to think clearly again.”

Source: company website · checked Sep 5, 2026
18
Fusion UnlimitedPartial evidence
Leeds, United KingdomHQ checked Sep 5, 202611-5020

“Fusion Unlimited is a team of digital performance and growth experts who can drive success for your brand across the marketing mix including SEO/GEO, paid search, social media…”

Source: company website · checked Sep 5, 2026
19
Next ChapterPartial evidence
Leeds, United KingdomHQ checked Sep 5, 20261-1019

“A strategic digital marketing agency tailored for B2B & professional service brands.”

Source: company website · checked Sep 5, 2026
20
Micro2Partial evidence
Leeds, United KingdomHQ checked Sep 5, 202611-5018

“Micro2 is a performance-driven VIP digital marketing agency dedicated to delivering elite services to a portfolio of high-end clients.”

Source: company website · checked Sep 5, 2026
21
RNB GroupPartial evidence
Leeds, United KingdomHQ checked Sep 5, 202651-20018

“From our Leeds based offices we can handle your entire marketing campaign.”

Source: company website · checked Sep 5, 2026
22
SPIKEIndirect evidence
Leeds, United KingdomHQ checked Sep 5, 202611-5018

“Based in Leeds, spike® specialise in paid media and search engine optimisation.”

Source: company website · checked Sep 5, 2026
23
Trio MediaPartial evidence
Leeds, United KingdomHQ checked Sep 5, 202611-5017

“Trio Media is an established performance marketing agency based in Leeds, with over 9 years’ experience supporting businesses in increasing online brand visibility and conversions.”

Source: company website · checked Sep 5, 2026
24
Campus Industries Student Marketing ExpertsIndirect evidence
Leeds, United KingdomHQ checked Sep 5, 202611-5015

“Campus Industries are a full service agency focused on the student market.”

Source: company website · checked Sep 5, 2026
25
CreodePartial evidence
Leeds, United KingdomHQ checked Sep 5, 202611-5014

“Creode As a digital marketing agency specialising in meeting the unique demands of today’s financial services sector, our business is built on understanding yours.”

Source: company website · checked Sep 5, 2026

Showing 25 of 233 marketing outsourcing companies based in Leeds, United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 722 reachable decision-makers.

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Marketing outsourcing companies based in Leeds, United Kingdom at a glance

As of Sep 5, 2026
1-10Median size (employees)
LondonLargest hub · 3870 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
169
11-50
52
51-200
10
201-500
2

Email recency for this list is measured across the whole United Kingdom list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Leeds, over 233 companies.

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 marketing outsourcing companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Leeds, United Kingdom whose own description of what they do matches “marketing outsourcing companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among marketing outsourcing companies, and records with no verified work email. Companies headquartered outside Leeds 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 an evidence 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, 722 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 5, 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.

Marketing outsourcing companies by metro in the United Kingdom

Frequently asked

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

RevenueBase identified 233 marketing outsourcing companies headquartered in Leeds, 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?

Uber Agency, headquartered in Leeds, tops this list with the largest team on record.

Which city has the most marketing outsourcing companies?

London leads with 3870 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 722 verified decision-maker contacts tracked across these 233 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 233 marketing outsourcing companies based in Leeds, United Kingdom. Start with a free account, no credit card.

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Related lists

Browse: Companies home · Marketing outsourcing companies in United Kingdom · All United Kingdom lists · All Marketing outsourcing companies lists · New lists

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.

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