Companies using RTB House in the United Kingdom: 78 found
Of the 1,153 companies using RTB House we found, 78 are headquartered in the United Kingdom (6.8%). The biggest group sells Ecommerce & Online Retail (27%). 21% have more than 1,000 employees.
- 78
- companies using RTB House
- 6.8%
- of all 1,153 RTB House advertisers in our data
- 21%
- have 1,000+ employees
- 27%
- Ecommerce & Online Retail
Who they are
Every company in this group, by sector, business model, size. Sector and business-model tags can overlap.
Companies using RTB House in the United Kingdom
20 of the 78, ordered by LinkedIn following. Inclusion means a detected tag, not a confirmed active campaign.
| Company | Industry | Size | HQ | Seen in |
|---|---|---|---|---|
EDF (UK) edfenergy.com | Utilities & Power | 10,001+ | United Kingdom | Tag manager |
SumUp sumup.co.uk | Payments & Fintech | 1,001–5,000 | United Kingdom | Tag manager |
Biffa biffa.co.uk | Environmental Services & Waste | 5,001–10,000 | United Kingdom | Tag manager |
PrettyLittleThing.com plt.shop | Fashion & Apparel | 201–500 | United Kingdom | Tag manager |
Space NK spacenk.com | Beauty & Personal Care | 501–1,000 | United Kingdom | Tag manager |
Myprotein myprotein.com | D2C / Consumer Brands | 201–500 | United Kingdom | Tag manager |
Avant Homes avanthomes.co.uk | Real Estate Investment & Development | 501–1,000 | United Kingdom | Tag manager |
Cult Beauty cultbeauty.co.uk | Beauty & Personal Care | 201–500 | United Kingdom | Tag manager |
Reed.co.uk reed.co.uk | HR, Staffing & Recruiting | 201–500 | United Kingdom | Tag manager |
Graff graff.com | Fashion & Apparel | 501–1,000 | United Kingdom | Tag manager |
esure Group esure.com | Insurance & Insurtech | 1,001–5,000 | United Kingdom | Tag manager |
Karen Millen karenmillen.com | Fashion & Apparel | 1,001–5,000 | United Kingdom | Tag manager |
myPOS mypos.com | Payments & Fintech | 1,001–5,000 | United Kingdom | Tag manager |
Represent representclo.com | Fashion & Apparel | 51–200 | United Kingdom | Tag manager |
Breast Cancer Now breastcancernow.org | Nonprofits & NGOs | 201–500 | United Kingdom | Tag manager |
Loganair Limited loganair.co.uk | Aviation & Aerospace Services | 501–1,000 | United Kingdom | Tag manager |
Purplebricks purplebricks.co.uk | Real Estate (brokerage & services) | 501–1,000 | United Kingdom | Tag manager |
TransferGo transfergo.com | Payments & Fintech | 201–500 | United Kingdom | Tag manager |
Crew Clothing Company crewclothing.co.uk | Fashion & Apparel | 501–1,000 | United Kingdom | Tag manager |
ClearRoute clearroute.io | IT Services & Consulting | 51–200 | United Kingdom | Live on site |
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How many companies in the United Kingdom use RTB House?
78, as of 7 November 2026 — 6.8% of the 1,153 companies we found carrying the RTB House tag. This counts companies we can tie to a company profile, so it is a floor, not a market total.
Which companies in the United Kingdom advertise with RTB House?
They include EDF (UK), SumUp, Biffa, PrettyLittleThing.com and Space NK. The table on this page shows 20; the full list has all 78.
What do these RTB House advertisers sell?
Ecommerce & Online Retail (20 companies), Fashion & Apparel (20) and Retail (physical / general) (18) are the largest sectors among the 75 we could classify.
How big are they?
21% have more than 1,000 employees; the most common size band is 51–200 employees.
How do you know a company runs RTB House?
We find the RTB House tag in the company's tag-manager container (attributed to the container's owner) or live on its pages, then match the domain to its company profile. A tag means measurement is set up, not that a campaign is running today. Full method on the RTB House study page.
Sell to the 78 companies running RTB House in the United Kingdom
Each one has a marketing team that buys media and measures it. RocketSDR finds the right person at every company on this list and writes the outreach.