Company lists · Data refreshed September 2026

Top 25 Account marketing companies based in London, United Kingdom

Name: Account marketing companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 530 companies tracked

RevenueBase identified 530 account marketing companies headquartered in London, United Kingdom as of September 2026 and tracks 6,289 professional contacts across them, including 862 with verified work emails. London is the largest hub.

This list covers account marketing companies headquartered in London, 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

530Companies

6,289Contacts tracked

862Verified emails

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The 25 largest account marketing companies based in London, United Kingdom

Ranked by team size

Top 25 of 530 account marketing companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to account marketing companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Newbase	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	282 contacts →
	Partial evidence “At NewBase we provide expert and independent marketing and advertising services across all media channels globally.” Source: RevenueBase Database · checked Sep 21, 2026
2	Expandi Group	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	155 contacts →
	Indirect evidence “Expandi Group is a global leader in AdTech, MarTech and Managed Services.” Source: RevenueBase Database · checked Sep 21, 2026
3	Incredible Marketeer Ites An ISO 9001 2015 Company	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	147 contacts →
	Indirect evidence “It ain't over 'til it's over." This quote applies very aptly to the way Incredible Marketeer works and performs.” Source: RevenueBase Database · checked Sep 21, 2026
4	SPARK	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	134 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
5	Ledger Bennett	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	93 contacts →
	Indirect evidence “We’re Ledger Bennett.” Source: RevenueBase Database · checked Sep 21, 2026
6	Internal Results	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	88 contacts →
	Indirect evidence “The B2B Customer Acquisition Specialists Internal Results specialize in generating leads, promoting content, and driving brand awareness for B2B organizations worldwide through…” Source: RevenueBase Database · checked Sep 21, 2026
7	Konica Minolta Marketing Services	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	87 contacts →
	Indirect evidence “Head to Indicia Worldwide for our exciting new profile, packed with great content.” Source: RevenueBase Database · checked Sep 21, 2026
8	The Media People	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	83 contacts →
	Indirect evidence “Powered by our people, our campaigns put your audience first.” Source: RevenueBase Database · checked Sep 21, 2026
9	Substance Global	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	77 contacts →
	Partial evidence “Founded in 2003, Substance is an award-winning digital marketing agency.” Source: RevenueBase Database · checked Sep 21, 2026
10	Agent3 X Pretzl	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	62 contacts →
	Strong evidence “We create powerful, creative, end-to-end Account Based Marketing programs with measurable impact using proprietary and applied technology services.” Source: RevenueBase Database · checked Sep 21, 2026
11	Adgenda Media International	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	51 contacts →
	Indirect evidence “Adgenda Media International (AMI) was established in 2005 as an independent, strategic results-driven media agency.” Source: RevenueBase Database · checked Sep 21, 2026
12	The Marketing Practice	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	51 contacts →
	Partial evidence “At The Marketing Practice, we’ve combined the best B2B specialists from across the globe in one business, with capabilities that stretch through the funnel, from brand to demand…” Source: RevenueBase Database · checked Sep 21, 2026
13	Pingpong Digital	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	48 contacts →
	Indirect evidence “PingPong Digital specializes in emerging market engagement for forward thinking brands, universities, and organizations seeking fresh and long lasting opportunities.” Source: RevenueBase Database · checked Sep 21, 2026
14	BAMBU	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	n/a	45 contacts →
	Partial evidence “Bambu is an online marketing and advertising agency based in London, working with startup and growth brands across the UK, Europe and North America, founded by two ex-WPP…” Source: RevenueBase Database · checked Sep 21, 2026
15	EI Global B2B Marketing Intelligence	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	42 contacts →
	Partial evidence “Ei Advisory provides B2B sales and marketing intelligence that helps companies reach, engage and convert customers.” Source: RevenueBase Database · checked Sep 21, 2026
16	Toucan	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	38 contacts →
	Partial evidence “Toucan, a certified Amazon Ads Advanced partner, is dedicated to driving the growth of brands globally through strategic Amazon Ads and account management services.” Source: RevenueBase Database · checked Sep 21, 2026
17	Alliance Advertising And Marketing	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	36 contacts →
	Indirect evidence “We are a dynamic group of multilingual professionals.” Source: RevenueBase Database · checked Sep 21, 2026
18	Gilroy	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	35 contacts →
	Partial evidence “For 50 years Gilroy has been trusted by world-leading B2B brands to accelerate acquisitions, unlock strategic account growth and maximise customer lifetime value.” Source: RevenueBase Database · checked Sep 21, 2026
19	Digiio	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	28 contacts →
	Indirect evidence “At digiio we pioneer innovative campaigns, approaches and intelligence that unlock interest and capture the imagination of our client’s customers.” Source: RevenueBase Database · checked Sep 21, 2026
20	Userled	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	26 contacts →
	Indirect evidence “Enterprise ABM has an execution problem.” Source: RevenueBase Database · checked Sep 21, 2026
21	Ceek Marketing	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	26 contacts →
	Partial evidence “CEEK is a strategic digital marketing agency that believes in the power of digital channels to increase revenue by utilising our specialist in-house resources in social media…” Source: RevenueBase Database · checked Sep 21, 2026
22	Chiief	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	26 contacts →
	Partial evidence “Chiief is a global B2B marketing and events agency helping FSI, Manufacturinig and Technology brands accelerate revenue, expand market presence, and drive high-value engagement…” Source: RevenueBase Database · checked Sep 21, 2026
23	7demand	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	1-10	20 contacts →
	Partial evidence “7Demand is your global channel-focussed partner and customer marketing agency.” Source: RevenueBase Database · checked Sep 21, 2026
24	Mixology Digital	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	19 contacts →
	Strong evidence “Mixology Digital (formerly Intentify Demand) is a global B2B demand generation and account-based marketing (ABM) partner built for enterprise growth.” Source: RevenueBase Database · checked Sep 21, 2026
25	Cardell Media	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	19 contacts →
	Partial evidence “For more than two decades, Cardell Media has been helping growing businesses implement successful online marketing.” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: account marketing companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names account marketing companies.
Partial evidence: Its own public description names part of account marketing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name account marketing companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 530 account marketing companies based in London, United Kingdom

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Account marketing companies based in London, United Kingdom at a glance

As of Sep 21, 2026

13.7%Verified-email coverage

11.9Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

330

11-50

147

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 530 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 account marketing companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “account marketing companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names account marketing companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among account marketing companies, and records with no verified work email. Companies headquartered outside London 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 its RevenueBase Smart Search 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, 862 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 21, 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.

Account marketing companies by metro in the United Kingdom

Account marketing companies in London530
Account marketing companies in Manchester63
Account marketing companies in Leeds40
Account marketing companies in Birmingham33
Account marketing companies in Bristol28

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names account marketing companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many account marketing companies are there based in London, United Kingdom?

RevenueBase identified 530 account marketing companies headquartered in London, 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?

Newbase, headquartered in London, tops this list with the largest team on record.

Which city has the most account marketing companies?

London leads with 530 headquartered companies, followed by Manchester (63) and Leeds (40).

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 862 verified decision-maker contacts tracked across these 530 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 21, 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 Smart Search, 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.