Company lists · Data refreshed September 2026
Top 25 Media buying platforms based in London, United Kingdom
RevenueBase identified 1,017 company matches for media buying platforms associated with London, United Kingdom as of September 2026 and tracks 25,716 professional contacts across them, including 4,325 with verified work emails. Across the United Kingdom, London is the largest hub for this category.
This list covers company matches for media buying platforms associated with London, 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 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.
The 25 largest media buying platforms based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,901 contacts → | ||||
Exact match “Publicis Media harnesses the power of modern media through leading agency brands Dysrupt, Infinite Roar, Publicis Collective, Publicis Health Media, Spark Foundry, Starcom and…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 2 | 457 contacts → | ||||
Exact match “We are a Global digital media agency specializing in taking a human approach to connecting brands with people across all channels.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 3 | 295 contacts → | ||||
Exact match “the7stars is the UK’s largest independent media agency, offering the best people, the best service and the best creative media campaigns.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 4 | 282 contacts → | ||||
Exact match “At NewBase we provide expert and independent marketing and advertising services across all media channels globally.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 5 | 210 contacts → | ||||
Exact match “A world where complexity is the only constant demands a new breed of company.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 6 | 179 contacts → | ||||
Exact match “VIOOH is a leading premium global digital out of home supply side platform.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 7 | 178 contacts → | ||||
Exact match “All Response Media is the leading performance media planning and buying agency.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 8 | 177 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 5, 2026 · View company records in RevenueBase | |||||
| 9 | 155 contacts → | ||||
Exact match “Expandi Group is a global leader in AdTech, MarTech and Managed Services.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 10 | 130 contacts → | ||||
Exact match “Crimtan was established in 2009 with a clear mission: to be a trusted partner for brands navigating the complex world of programmatic advertising.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 11 | 122 contacts → | ||||
Exact match “Permutive is the predictive collaboration platform enabling Walled Garden outcomes on the Open Internet.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 12 | 99 contacts → | ||||
Exact match “Admixer is an independent adtech company that develops an ecosystem of full-stack programmatic solutions.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 13 | 83 contacts → | ||||
Exact match “Powered by our people, our campaigns put your audience first.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 14 | 69 contacts → | ||||
Exact match “Nest Commerce is a technology-led agency working with brands like Urban Outfitters, Hims and Damson Madder.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 15 | 64 contacts → | ||||
Exact match “We are an award-winning full-service digital agency, part of Jakala group with 1,800 employees across 16 countries around the world.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 16 | 54 contacts → | ||||
Exact match “OCM is a leading adtech agency providing solutions to advertisers, advertising agencies and to web, mobile & video publishers.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 17 | 51 contacts → | ||||
Exact match “DAX is the largest digital audio advertising platform in the UK and one of the largest in the world.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 18 | 50 contacts → | ||||
Exact match “From our office in London & Leeds, we seamlessly plan and buy media across all channels: digital, TV, cinema, OOH, radio, print, social and search.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 19 | 48 contacts → | ||||
Exact match “We are a leading independent digital media agency.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 20 | 47 contacts → | ||||
Exact match “We speak to Marketing Directors across all sectors all the time and we understand their challenges and board demands: Get More ROI.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 21 | 45 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 22 | 44 contacts → | ||||
Exact match “Beautiful Digital is a full service digital marketing agency.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 23 | 44 contacts → | ||||
Exact match “Peach is working to radically simplify ad workflows.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 24 | 39 contacts → | ||||
Exact match “Nexxen empowers advertisers, agencies, publishers and broadcasters around the world to utilize data and advanced TV in the ways that are most meaningful to them.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 25 | 39 contacts → | ||||
Exact match “Focus on strategy, not manually time-consuming tasks.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “media buying platforms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 1,017 media buying platforms based in London, United Kingdom
See the full list, filter by size, metro and specialty, and access 4,325 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Media buying platforms based in London, United Kingdom at a glance
As of Sep 5, 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 1,017 companies.
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 London, United Kingdom whose business descriptions match “media buying platforms” 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 4,325 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 5, 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.
Media buying platforms by metro in the United Kingdom
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 “media buying platforms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many media buying platforms are there based in London, United Kingdom?
RevenueBase identified 1,017 company matches for media buying platforms associated with London, 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?
Publicis Media tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in the United Kingdom has the most media buying platforms?
London leads the United Kingdom with 1,017 company records, followed by Manchester (107) and Birmingham (60).
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 4,325 professional contacts with verified work emails tracked across these 1,017 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 5, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,017 media buying platforms based in London, United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Media buying platforms by geography
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- Media buying platforms based in the United Kingdom
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- Media buying platforms based in Germany
- Media buying platforms based in Spain
- Media buying platforms based in Australia
- Media buying platforms based in France
- Media buying platforms based in Mexico
- Media buying platforms based in the Netherlands
- Media buying platforms based in Italy
- Media buying platforms based in South Africa
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Media buying platforms based in the United States
- Media buying platforms based in Brazil
- Media buying platforms based in the United Kingdom
- Media buying platforms based in Canada
- Media buying platforms based in Germany
- Media buying platforms based in Spain
Company intelligence · public preview
Top 25 media buying platforms based in London, United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,017 matching company records for media buying platforms based in London, United Kingdom, with 25,716 tracked contacts and 4,325 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 5, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 media buying platforms based in London, United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Publicis Mediapublicisgroupe.comHQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 6,901 contacts → |
“Publicis Media harnesses the power of modern media through leading agency brands Dysrupt, Infinite Roar, Publicis Collective, Publicis Health Media, Spark Foundry, Starcom and…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  M C Saatchi Performancemcsaatchiperformance.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 457 contacts → |
“We are a Global digital media agency specializing in taking a human approach to connecting brands with people across all channels.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  The7starsthe7stars.co.ukHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 295 contacts → |
“the7stars is the UK’s largest independent media agency, offering the best people, the best service and the best creative media campaigns.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Newbasethenewbase.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 282 contacts → |
“At NewBase we provide expert and independent marketing and advertising services across all media channels globally.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Brave Bisonbravebison.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 210 contacts → |
“A world where complexity is the only constant demands a new breed of company.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  VIOOHviooh.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 179 contacts → |
“VIOOH is a leading premium global digital out of home supply side platform.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  ALL Response Mediaallresponsemedia.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 178 contacts → |
“All Response Media is the leading performance media planning and buying agency.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  BIG Groupbiggroup.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 177 contacts → |
“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 description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Expandi Groupexpandigroup.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 155 contacts → |
“Expandi Group is a global leader in AdTech, MarTech and Managed Services.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Crimtancrimtan.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 130 contacts → |
“Crimtan was established in 2009 with a clear mission: to be a trusted partner for brands navigating the complex world of programmatic advertising.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Permutivepermutive.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 122 contacts → |
“Permutive is the predictive collaboration platform enabling Walled Garden outcomes on the Open Internet.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Admixeradmixer.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 99 contacts → |
“Admixer is an independent adtech company that develops an ecosystem of full-stack programmatic solutions.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  The Media Peoplethemediapeople.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 83 contacts → |
“Powered by our people, our campaigns put your audience first.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Nest Commercenestcommerce.coHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 69 contacts → |
“Nest Commerce is a technology-led agency working with brands like Urban Outfitters, Hims and Damson Madder.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  77agency77agency.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 64 contacts → |
“We are an award-winning full-service digital agency, part of Jakala group with 1,800 employees across 16 countries around the world.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  OCM Digital Mediaorangeclickmedia.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 54 contacts → |
“OCM is a leading adtech agency providing solutions to advertisers, advertising agencies and to web, mobile & video publishers.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  DAXglobal.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 51 contacts → |
“DAX is the largest digital audio advertising platform in the UK and one of the largest in the world.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  AMS Media Groupamsgroup.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 50 contacts → |
“From our office in London & Leeds, we seamlessly plan and buy media across all channels: digital, TV, cinema, OOH, radio, print, social and search.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Harvest Digitalharvestdigital.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 48 contacts → |
“We are a leading independent digital media agency.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Astus Groupastusuk.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 47 contacts → |
“We speak to Marketing Directors across all sectors all the time and we understand their challenges and board demands: Get More ROI.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  BAMBUbambuagency.comHQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 45 contacts → |
“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…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Beautiful Digitalbeautifuldigital.mediaHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 44 contacts → |
“Beautiful Digital is a full service digital marketing agency.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | PEACHpeach.me HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 44 contacts → |
“Peach is working to radically simplify ad workflows.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Unrulynexxen.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 39 contacts → |
“Nexxen empowers advertisers, agencies, publishers and broadcasters around the world to utilize data and advanced TV in the ways that are most meaningful to them.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Sembotsembot.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 39 contacts → |
“Focus on strategy, not manually time-consuming tasks.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,017 company matches
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Media buying platforms: dataset insights
September 5, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,015 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 1,017 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 5, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Media buying platforms by metro in the United Kingdom
Questions about this company list
What does Exact match mean for media buying platforms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many media buying platforms did RevenueBase find based in London, United Kingdom?
The saved snapshot records 1,017 matching company records, 25,716 tracked contacts and 4,325 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 5, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Media buying platforms by geography
- Media buying platforms based in the United States
- Media buying platforms based in Brazil
- Media buying platforms based in the United Kingdom
- Media buying platforms based in Canada
- Media buying platforms based in Germany
- Media buying platforms based in Spain
- Media buying platforms based in Australia
- Media buying platforms based in France
- Media buying platforms based in Mexico
- Media buying platforms based in the Netherlands
- Media buying platforms based in Italy
- Media buying platforms based in South Africa
Cite this list
RevenueBase Data Team. Top 25 media buying platforms based in London, United Kingdom. Snapshot: September 5, 2026. https://revenuebase.ai/companies/media-buying-platforms/united-kingdom/london.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Media buying platforms based in the United States
- Media buying platforms based in Brazil
- Media buying platforms based in the United Kingdom
- Media buying platforms based in Canada
- Media buying platforms based in Germany
- Media buying platforms based in Spain
Company intelligence · public preview
Top 25 media buying platforms based in London, United Kingdom
RevenueBase records 1,017 matching company records for media buying platforms based in London, United Kingdom, with 25,716 tracked contacts and 4,325 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 5, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 media buying platforms based in London, United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Publicis Mediapublicisgroupe.com HQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 6,901 contacts → |
“Publicis Media harnesses the power of modern media through leading agency brands Dysrupt, Infinite Roar, Publicis Collective, Publicis Health Media, Spark Foundry, Starcom and…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | M C Saatchi Performancemcsaatchiperformance.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 457 contacts → |
“We are a Global digital media agency specializing in taking a human approach to connecting brands with people across all channels.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | The7starsthe7stars.co.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 295 contacts → |
“the7stars is the UK’s largest independent media agency, offering the best people, the best service and the best creative media campaigns.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Newbasethenewbase.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 282 contacts → |
“At NewBase we provide expert and independent marketing and advertising services across all media channels globally.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Brave Bisonbravebison.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 210 contacts → |
“A world where complexity is the only constant demands a new breed of company.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | VIOOHviooh.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 179 contacts → |
“VIOOH is a leading premium global digital out of home supply side platform.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | ALL Response Mediaallresponsemedia.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 178 contacts → |
“All Response Media is the leading performance media planning and buying agency.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | BIG Groupbiggroup.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 177 contacts → |
“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 description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Expandi Groupexpandigroup.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 155 contacts → |
“Expandi Group is a global leader in AdTech, MarTech and Managed Services.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Crimtancrimtan.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 130 contacts → |
“Crimtan was established in 2009 with a clear mission: to be a trusted partner for brands navigating the complex world of programmatic advertising.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Permutivepermutive.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 122 contacts → |
“Permutive is the predictive collaboration platform enabling Walled Garden outcomes on the Open Internet.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Admixeradmixer.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 99 contacts → |
“Admixer is an independent adtech company that develops an ecosystem of full-stack programmatic solutions.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | The Media Peoplethemediapeople.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 83 contacts → |
“Powered by our people, our campaigns put your audience first.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Nest Commercenestcommerce.co HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 69 contacts → |
“Nest Commerce is a technology-led agency working with brands like Urban Outfitters, Hims and Damson Madder.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | 77agency77agency.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 64 contacts → |
“We are an award-winning full-service digital agency, part of Jakala group with 1,800 employees across 16 countries around the world.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | OCM Digital Mediaorangeclickmedia.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 54 contacts → |
“OCM is a leading adtech agency providing solutions to advertisers, advertising agencies and to web, mobile & video publishers.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | DAXglobal.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 51 contacts → |
“DAX is the largest digital audio advertising platform in the UK and one of the largest in the world.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | AMS Media Groupamsgroup.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 50 contacts → |
“From our office in London & Leeds, we seamlessly plan and buy media across all channels: digital, TV, cinema, OOH, radio, print, social and search.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Harvest Digitalharvestdigital.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 48 contacts → |
“We are a leading independent digital media agency.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Astus Groupastusuk.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 47 contacts → |
“We speak to Marketing Directors across all sectors all the time and we understand their challenges and board demands: Get More ROI.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | BAMBUbambuagency.com HQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 45 contacts → |
“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…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Beautiful Digitalbeautifuldigital.media HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 44 contacts → |
“Beautiful Digital is a full service digital marketing agency.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | PEACHpeach.me HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 44 contacts → |
“Peach is working to radically simplify ad workflows.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Unrulynexxen.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 39 contacts → |
“Nexxen empowers advertisers, agencies, publishers and broadcasters around the world to utilize data and advanced TV in the ways that are most meaningful to them.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Sembotsembot.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 39 contacts → |
“Focus on strategy, not manually time-consuming tasks.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,017 company matches
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Media buying platforms: dataset insights
September 5, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,015 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 1,017 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 5, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Media buying platforms by metro in the United Kingdom
Questions about this company list
What does Exact match mean for media buying platforms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many media buying platforms did RevenueBase find based in London, United Kingdom?
The saved snapshot records 1,017 matching company records, 25,716 tracked contacts and 4,325 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 5, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 media buying platforms based in London, United Kingdom. Snapshot: September 5, 2026. https://revenuebase.ai/companies/media-buying-platforms/united-kingdom/london.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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