Company lists · Data refreshed September 2026

Top 25 Supply side platform companies based in the United Kingdom

RevenueBase identified 98 company matches for supply side platform companies associated with the United Kingdom as of September 2026 and tracks 1,200 professional contacts across them, including 479 with verified work emails and 94 with mobile numbers. London is the largest hub.

This list covers company matches for supply side platform companies 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 6, 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 6, 2026 How this list was built
98Companies
1,200Contacts tracked
479Verified emails
94Mobile numbers
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The 25 largest supply side platform companies based in the United Kingdom

Ranked by team size
Top 25 of 98 company matches for supply side platform companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 6, 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 matchLondon, United KingdomHQ recorded Sep 6, 202651-200179 contacts →

Exact match

“VIOOH is a leading premium global digital out of home supply side platform.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 6, 202651-200122 contacts →

Exact match

“Permutive is the predictive collaboration platform enabling Walled Garden outcomes on the Open Internet.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 6, 2026201-50099 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 6, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 6, 202651-20054 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 6, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 6, 2026501-1,00039 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 6, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 6, 202611-5038 contacts →

Exact match

“We're an ad-tech company, serving the £23bn global market for audio advertising with software-as-a-service solutions for revenue optimisation, planning and scheduling.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
7Exact matchBath, United KingdomHQ recorded Sep 6, 202651-20036 contacts →

Exact match

“We connect brands to audiences and publishers to revenue.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 6, 202611-5029 contacts →

Exact match

“Future-proofing B2B digital advertising and analytics in a cookieless world.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 6, 202611-5025 contacts →

Exact match

“At Voise Tech, we simplify the complexity of digital advertising through.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 6, 202611-5015 contacts →

Exact match

“Axis is a cutting-edge programmatic platform built to help publishers and app developers unlock the full potential of their inventory.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 6, 202611-5014 contacts →

Exact match

“Welcome to bidinfluence, your premier supply-side platform specializing in the dynamic monetization of mobile applications through top-notch programmatic video ads.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
12Exact matchBournemouth, United KingdomHQ recorded Sep 6, 202611-5013 contacts →

Exact match

“Maximising Revenue, Efficiency & Control For Publishers Through One Simple Integration.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
13Exact matchPortsmouth, United KingdomHQ recorded Sep 6, 20261-1013 contacts →

Exact match

“Adfluential is an ad-tech business connecting high intent internet traffic with advertising partners seeking to acquire new customers at scale.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 6, 20261-1010 contacts →

Exact match

“The IVO digital ad product platform provides publishers with a strategic opportunity to increase revenue and maximise inventory yields, by leveraging the best workflow and…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
15Exact matchManchester, United KingdomHQ recorded Sep 6, 20261-109 contacts →

Exact match

“At Numodo, we understand the importance of staying ahead in the digital advertising landscape.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 6, 202611-508 contacts →

Exact match

“The vision of this organization is to continuously innovate and improve the field of digital advertising by focusing on the research and development of tools used to optimize the…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 6, 202611-508 contacts →

Exact match

“Programmatic was built to make media smarter.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
18Exact matchSouthampton, United KingdomHQ recorded Sep 6, 202611-508 contacts →

Exact match

“Switch manages over 50 billion global ad impressions per month, and lead the market with a reach of over 80% into the UK population (comScore).”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 6, 202611-508 contacts →

Exact match

“Admarket.co is an advertising booking marketplace booking e-commerce platform for advertisers and media space owners.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
20Exact matchLisle Road, United KingdomHQ recorded Sep 6, 202611-507 contacts →

Exact match

“Advant Technology your advantage in programmatic advertising.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 6, 202611-506 contacts →

Exact match

“Our best-in-class optimization techniques across premium demand channels while protecting your user experience and achieving the highest possible value for every impression in the…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 6, 20261-106 contacts →

Exact match

“From the beginning, Open Horizons Media has been a programmatic advertising company dedicated to achieving digital advertising success for businesses of all sizes!”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 6, 20261-106 contacts →

Exact match

“United4digital is a global marketing company specializing in video and audio advertising solutions.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 6, 20261-105 contacts →

Exact match

“SIGWICK MEDIA | A Global Programmatic Advertising Platform, buyers may use real-time bidding on direct premium inventory through SIGWICK MEDIA.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 6, 20261-104 contacts →

Exact match

“Nodals is the AI-enabled ad platform for media owners, built to deliver against any advertiser outcome.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase

Showing 25 of 98 supply side platform companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 479 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Supply side platform companies based in the United Kingdom at a glance

As of Sep 6, 2026
39.9%Verified-email coverage
7.8%Mobile-number coverage
12.2Average contacts per company
11-50Median size (employees)
71.4%Largest-city concentration · London
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
36
11-50
48
51-200
9
201-500
1
501-1,000
4

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 “supply side platform companies” 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 479 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 6, 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.

Supply side platform companies by metro

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 “supply side platform companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many supply side platform companies are there based in the United Kingdom?

RevenueBase identified 98 company matches for supply side platform companies 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?

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

Which city has the most supply side platform companies?

London leads with 70 company records, followed by Bath (2) and Birmingham (2).

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 479 professional contacts with verified work emails tracked across these 98 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 6, 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 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.