Company lists · Data refreshed September 2026
Top 25 Retail media advertising agencies based in London, United Kingdom
RevenueBase identified 234 retail media advertising agencies headquartered in London, United Kingdom as of September 2026 and tracks 5,479 professional contacts across them, including 1,629 with verified work emails. Across the United Kingdom, London is the largest hub for this category.
This list covers retail media advertising 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 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.
The 25 largest retail media advertising agencies based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 455 contacts → | ||||
Indirect evidence “We’re the original pioneers in connected commerce marketing.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 401 contacts → | ||||
Indirect evidence “LoopMe is bringing brands into apps, powered by AI agents.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 295 contacts → | ||||
Partial evidence “the7stars is the UK’s largest independent media agency, offering the best people, the best service and the best creative media campaigns.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 254 contacts → | ||||
Indirect evidence “Nectar360 starts with the UK’s largest multi partner loyalty programme and ends with brands connecting to their customers in smarter, more meaningful ways.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 178 contacts → | ||||
Partial evidence “All Response Media is the leading performance media planning and buying agency.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 164 contacts → | ||||
Partial evidence “Every day millions of people interact with JCDecaux’s digital poster advertising sites in cities across the UK.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 138 contacts → | ||||
Partial evidence “At Ocean Outdoor, we lead the way in premium large format Digital Out of Home advertising.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 132 contacts → | ||||
Partial evidence “We are an award-winning media planning and buying agency, helping brands cut through the noise with strategic clarity, inventive solutions, and commercial integrity.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 69 contacts → | ||||
Indirect evidence “Nest Commerce is a technology-led agency working with brands like Urban Outfitters, Hims and Damson Madder.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 50 contacts → | ||||
Partial evidence “From our office in London & Leeds, we seamlessly plan and buy media across all channels: digital, TV, cinema, OOH, radio, print, social and search.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 44 contacts → | ||||
Strong evidence “GotU is a marketing technology company developing hyperlocal advertising and marketing solutions for retailers, SMB marketing partners and local businesses everywhere.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 38 contacts → | ||||
Indirect evidence “Acorn Intelligence is part of The Brandtech Group.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 38 contacts → | ||||
Strong evidence “Our platform helps performance marketers scale social, display and retail media campaigns.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 27 contacts → | ||||
Partial evidence “December19 is a media planning and buying agency.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 27 contacts → | ||||
Partial evidence “Launched in 1998 with media channels initially concentrated in the rail environment, and now also in cinemas across the UK, KBH is specialist in audience mindset media, linking…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 27 contacts → | ||||
Indirect evidence “Rocketer are a multi platform Martech advertiser specialising prominently in the financial services vertical servicing clients on a global scale.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 26 contacts → | ||||
Strong evidence “Limited Space is the leading Destination Media Owner - building #OOH #advertising networks in the Retail & Lifestyle sector and creating active connections with an engaged and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 24 contacts → | ||||
Indirect evidence “Where people and creativity drive real results.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 23 contacts → | ||||
Indirect evidence “Do justice to the data, with the expertise to turn it into a nuanced programmatic campaign.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 23 contacts → | ||||
Strong evidence “At JWE Media, we take care of your marketing and advertising needs, from TV to Press, Out of Home to Digital, we manage the whole process ensuring we save you time and money.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 23 contacts → | ||||
Partial evidence “Naritive is a media owner dedicated to offering brands and companies better optimised and effective programmatic and display ad solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 21 contacts → | ||||
Partial evidence “Guerillascope is a full-service media agency, with serious chops across AV, out-of-home, publishers, digital, and partnerships.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 18 contacts → | ||||
Partial evidence “White Spider Media agency's name has been fraudulently used by third parties, often communicating via messaging services on unofficial websites and apps and targeting job seekers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 17 contacts → | ||||
Indirect evidence “Ads and More Group is an international holding operating globally in programmatic marketing, built to deliver measurable growth through data, technology, and disciplined execution.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: retail media advertising agencies. 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 retail media advertising agencies.
- Partial evidence
- Its own public description names part of retail media advertising agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name retail media advertising agencies. 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 234 retail media advertising agencies based in London, United Kingdom
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,629 reachable decision-makers.
Free signup · no credit card
Retail media advertising agencies based in London, United Kingdom at a glance
As of Sep 29, 2026Companies by employee count
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 234 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 retail media advertising agencies, 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 “retail media advertising agencies”. 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 retail media advertising agencies), 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 retail media advertising 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 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, 1,629 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 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
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 retail media advertising agencies, 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 retail media advertising agencies are there based in London, United Kingdom?
RevenueBase identified 234 retail media advertising agencies 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?
SMG, headquartered in London, tops this list with the largest team on record.
Which city in the United Kingdom has the most retail media advertising agencies?
London leads the United Kingdom with 234 headquartered companies, followed by Manchester (19) and Birmingham (10).
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 1,629 verified decision-maker contacts tracked across these 234 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 29, 2026.
Ready to reach these companies? Verified emails and direct dials for all 234 retail media advertising agencies based in London, United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Retail media advertising agencies by geography
- Retail media advertising agencies based in Sydney, Australia
- Retail media advertising agencies based in Sao Paulo, Brazil
- Retail media advertising agencies based in Montreal, Canada
- Retail media advertising agencies based in Toronto, Canada
- Retail media advertising agencies based in Paris, France
- Retail media advertising agencies based in Berlin, Germany
- Retail media advertising agencies based in Hamburg, Germany
- Retail media advertising agencies based in Bangalore, India
- Retail media advertising agencies based in Delhi, India
- Retail media advertising agencies based in Gurgaon, India
- Retail media advertising agencies based in Hyderabad, India
- Retail media advertising agencies based in Mumbai, India
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Retail media advertising agencies based in Sydney, Australia
- Retail media advertising agencies based in Sao Paulo, Brazil
- Retail media advertising agencies based in Montreal, Canada
- Retail media advertising agencies based in Toronto, Canada
- Retail media advertising agencies based in Paris, France
- Retail media advertising agencies based in Berlin, Germany