Company lists · Data refreshed August 2026
Top 25 Account based marketing agencies based in London, United Kingdom
There are 400 account based marketing agencies headquartered in London, United Kingdom (RevenueBase, August 2026). RevenueBase tracks 8,966 professional contacts across them, including 1,415 with verified work emails and 741 with mobile numbers. London is the largest hub.
This list covers account based marketing agencies 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, how directly it supports the match, and when it was last checked. Data refreshed August 29, 2026.
The 25 largest account based marketing agencies based in London, United Kingdom
Ranked by team size| # | Company | Verified emails |
|---|---|---|
| 1 | “Neil Patel has been recognized by the Wall Street Journal, Forbes, and the United Nations, to name a few, as one of the most influential and successful marketers and entrepreneurs…” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 306 |
| 2 | “Intentsify empowers B2B marketers to turn buying signals into pipeline by enhancing conversions among decision makers at priority accounts throughout their buying journey.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 147 |
| 3 | “Expandi Group is a global leader in AdTech, MarTech and Managed Services.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 46 |
| 4 | “Publicis Pro is the specialist B2B marketing agency within Publicis Groupe, the world's number one marketing holding group.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 34 |
| 5 | Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 18 |
| 6 | “Metia is a global marketing agency with offices in London, Seattle, Austin and Singapore.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 44 |
| 7 | “Today, B2B brands battle for attention in the same crowded space as everything else.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 49 |
| 8 | “OTM is a creative marketing agency for financial services, B2B technology and public sector companies.[Please Note, we have NO connection with Oracle Transportation Management]…” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 1 |
| 9 | “We are ROAST.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 36 |
| 10 | “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: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 30 |
| 11 | “Adgenda Media International (AMI) was established in 2005 as an independent, strategic results-driven media agency.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 28 |
| 12 | “At D2MS, we believe direct marketing can be done differently.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 9 |
| 13 | “We are The Think Tank: a fully-integrated, result-oriented agency based in Holborn, London.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 25 |
| 14 | “Technology has changed the world.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 27 |
| 15 | “True is a B2B specialist creative and media agency based in London with global offices.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 18 |
| 16 | “We are problem solvers.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 2 |
| 17 | “Welcome to Lion Reach Media, where innovation meets unparalleled success in B2B marketing.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 9 |
| 18 | “December19 is a media planning and buying agency.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 23 |
| 19 | “At digiio we pioneer innovative campaigns, approaches and intelligence that unlock interest and capture the imagination of our client’s customers.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 21 |
| 20 | “We do great work that works great.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 13 |
| 21 | “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: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 11 |
| 22 | “Expandi Jabmo, recognized in the 2024 Gartner® Magic Quadrant™ for ABM Platforms, powers Account Based Marketing for the world's largest Manufacturers, Life Science, and…” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 1 |
| 23 | “Codax is an enterprise Signal Based Marketing firm based in London, helping brands run ABM from real buying signals.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 2 |
| 24 | “Mixology Digital (formerly Intentify Demand) is a global B2B demand generation and account-based marketing (ABM) partner built for enterprise growth.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 14 |
| 25 | “For more than two decades, Cardell Media has been helping growing businesses implement successful online marketing.” Source: company website · checked Aug 29, 2026Thanks. The Data Team will review it. | 2 |
Showing 25 of 400 account based marketing agencies based in London, United Kingdom
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Account based marketing agencies based in London, United Kingdom at a glance
As of Aug 29, 2026Companies by employee count
Account based marketing agencies by metro in the United Kingdom
| Metro | Companies |
|---|---|
| Account based marketing agencies in London | 400 |
| Account based marketing agencies in Manchester | 48 |
| Account based marketing agencies in Leeds | 24 |
| Account based marketing agencies in Birmingham | 21 |
| Account based marketing agencies in Glasgow | 16 |
| Account based marketing agencies in Bristol | 14 |
| Account based marketing agencies in Liverpool | 12 |
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 based marketing agencies, 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: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
- What qualifies
- Companies headquartered in London, United Kingdom whose own description of what they do matches “account based marketing agencies”. 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 account based marketing agencies, 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 an evidence rating so you can judge each match yourself.
- 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, 1,415 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 August 29, 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.
Frequently asked
How many account based marketing agencies are there based in London, United Kingdom?
There are 400 account based marketing agencies headquartered in London, United Kingdom as of August 2026 (RevenueBase).
What is the largest company on this list?
NP Digital, headquartered in London, tops this list with the largest team on record.
Which city has the most account based marketing agencies?
London leads with 400 headquartered companies, followed by Manchester (48) and Leeds (24).
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 1,415 verified decision-maker contacts tracked across these 400 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 29, 2026.
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About this data
RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.
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