Company lists · Data refreshed September 2026

Top 25 Ethical digital marketing agencies based in the United Kingdom

RevenueBase identified 6,106 company matches for ethical digital marketing agencies associated with the United Kingdom as of September 2026 and tracks 34,202 professional contacts across them, including 7,403 with verified work emails and 2,178 with mobile numbers. London is the largest hub.

This list covers company matches for ethical digital marketing 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 September 24, 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 24, 2026 How this list was built
6,106Companies
34,202Contacts tracked
7,403Verified emails
2,178Mobile numbers
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest ethical digital marketing agencies based in the United Kingdom

Ranked by team size
Top 25 of 6,106 company matches for ethical digital marketing agencies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 24, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAltrincham, United KingdomHQ recorded Sep 24, 2026201-500292 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 24, 2026 · View company records in RevenueBase
2Exact matchNottingham, United KingdomHQ recorded Sep 24, 202651-200182 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 24, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 24, 202651-200177 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 24, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 24, 2026501-1,000158 contacts →

Exact match

“IDX (formerly Investis Digital) specializes in elevating companies and brands and maximizing technology to build strong, relatable, and authentic connections with their audiences.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
5Exact matchLeeds, United KingdomHQ recorded Sep 24, 202651-200146 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 24, 2026 · View company records in RevenueBase
6Exact matchMarlow, United KingdomHQ recorded Sep 24, 202651-200130 contacts →

Exact match

“We deliver marketing that drives real business impact in our core sectors; retail destinations, leisure & attractions, and wines & spirits.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
7Exact matchChristchurch, United KingdomHQ recorded Sep 24, 202651-200129 contacts →

Exact match

“We connect brands with customers.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 24, 202651-200117 contacts →

Exact match

“e intelligence is a renowned global leader in the digital marketing space.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
9Exact matchSheffield, United KingdomHQ recorded Sep 24, 202651-20098 contacts →

Exact match

“The SEO Works are an award-winning provider of search marketing, websites and paid social for leading brands and prospering SME’s.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 24, 202651-20096 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 24, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 24, 2026501-1,00087 contacts →

Exact match

“Head to Indicia Worldwide for our exciting new profile, packed with great content.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 24, 2026501-1,00085 contacts →

Exact match

“PMG acquired RocketMill in late 2023.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 24, 202611-5083 contacts →

Exact match

“Powered by our people, our campaigns put your audience first.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
14Exact matchBirmingham, United KingdomHQ recorded Sep 24, 202651-20082 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
15Exact matchSt Helens, United KingdomHQ recorded Sep 24, 202611-5079 contacts →

Exact match

“Simple.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 24, 202651-20079 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 24, 2026 · View company records in RevenueBase
17Exact matchManchester, United KingdomHQ recorded Sep 24, 202611-5078 contacts →

Exact match

“We go beyond quick fixes, putting strategy at the heart of digital marketing.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
18Exact matchLeeds, United KingdomHQ recorded Sep 24, 2026201-50077 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
19Exact matchBerkshire, United KingdomHQ recorded Sep 24, 202611-5075 contacts →

Exact match

“Century Media360 will help you measure, optimize and enhance your ROI then association with us is your ultimate destination.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 24, 202651-20070 contacts →

Exact match

“GA Agency is an award-winning digital marketing agency helping brands all over the world grow their business and revenue in the online space.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
21Exact matchMiddlesbrough, United KingdomHQ recorded Sep 24, 202651-20069 contacts →

Exact match

“Unlock exceptional business growth with Mabo - an award-winning digital marketing agency specialist in paid search, social media, search engine optimisation (SEO) and Amazon…”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
22Exact matchBrighton, United KingdomHQ recorded Sep 24, 202651-20067 contacts →

Exact match

“We exist to transform the future of education marketing by daring to be different.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
23Exact matchBrighton, United KingdomHQ recorded Sep 24, 202651-20066 contacts →

Exact match

“We are search experts, storytellers and strategists – trusted by ambitious brands to deliver performance and brand marketing that fuels growth.”

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 24, 202651-20066 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 24, 2026 · View company records in RevenueBase
25Exact matchLeeds, United KingdomHQ recorded Sep 24, 202651-20064 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase

Showing 25 of 6,106 ethical digital marketing agencies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 7,403 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Ethical digital marketing agencies based in the United Kingdom at a glance

As of Sep 24, 2026
21.6%Verified-email coverage
6.4%Mobile-number coverage
5.6Average contacts per company
1-10Median size (employees)
29.2%Largest-city concentration · London
Sep 24, 2026Page data refreshed

Companies by employee count

1-10
4,696
11-50
1,209
51-200
148
201-500
24
501-1,000
9
1,001-5,000
4
5,001-10,000
2

Freshness & accuracy

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

Email last verified

Median 26.0d

Company record updated

Median 90.0d

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 “ethical digital marketing 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 7,403 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 24, 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.

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

How many ethical digital marketing agencies are there based in the United Kingdom?

RevenueBase identified 6,106 company matches for ethical digital marketing agencies 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?

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

Which city has the most ethical digital marketing agencies?

London leads with 1786 company records, followed by Manchester (230) and Birmingham (165).

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 7,403 professional contacts with verified work emails tracked across these 6,106 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 24, 2026.

Ready to reach these companies? Verified emails and direct dials for all 6,106 ethical digital marketing agencies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related 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.