Companies using Reddit Ads in the United Kingdom: 1,308 found
Of the 16,355 companies using Reddit Ads we found, 1,308 are headquartered in the United Kingdom (8%). The biggest group sells SaaS / Cloud (12%). 9.5% have more than 1,000 employees.
- 1,308
- companies using Reddit Ads
- 8%
- of all 16,355 Reddit Ads advertisers in our data
- 9.5%
- have 1,000+ employees
- 12%
- SaaS / Cloud
Who they are
Every company in this group, by sector, business model, size. Sector and business-model tags can overlap.
Companies using Reddit Ads in the United Kingdom
20 of the 1,308, ordered by LinkedIn following. Inclusion means a detected tag, not a confirmed active campaign.
| Company | Industry | Size | HQ | Seen in |
|---|---|---|---|---|
Aon aon.com | Insurance & Insurtech | 10,001+ | United Kingdom | Tag manager |
Arup arup.com | Civil & Structural Engineering | 10,001+ | United Kingdom | Tag manager |
The London School of Economics and Political Science (LSE) lse.ac.uk | Higher Education | 1,001–5,000 | United Kingdom | Tag manager |
Oxfam oxfam.org.uk | Nonprofits & NGOs | 5,001–10,000 | United Kingdom | Tag manager |
Hack The Box hackthebox.com | Cybersecurity | 201–500 | United Kingdom | Tag manager |
RWS rws.com | AI / ML | 5,001–10,000 | United Kingdom | Tag manager |
Tide tide.co | Banking | 1,001–5,000 | United Kingdom | Tag manager |
London Business School london.edu | Higher Education | 501–1,000 | United Kingdom | Tag manager |
King's College London kcl.ac.uk | K-12 & Higher Education | 5,001–10,000 | United Kingdom | Tag manager |
ElevenLabs elevenlabs.io | AI / ML | 501–1,000 | United Kingdom | Tag manager |
BSI bsigroup.com | Management & Strategy Consulting | 1,001–5,000 | United Kingdom | Tag manager |
Howden howdengroupholdings.com | Insurance & Insurtech | 10,001+ | United Kingdom | Tag manager |
Reed reed.com | HR, Staffing & Recruiting | 1,001–5,000 | United Kingdom | Tag manager |
AVEVA aveva.com | Enterprise Software | 5,001–10,000 | United Kingdom | Tag manager |
Infobip infobip.com | Telecom & Connectivity | 1,001–5,000 | United Kingdom | Tag manager |
University of Bristol bristol.ac.uk | Higher Education | 1,001–5,000 | United Kingdom | Tag manager |
Clarivate clarivate.com | Data & Analytics | 10,001+ | United Kingdom | Tag manager |
EDF (UK) edfenergy.com | Utilities & Power | 10,001+ | United Kingdom | Tag manager |
FDM Group fdmgroup.com | IT Services & Consulting | 1,001–5,000 | United Kingdom | Tag manager |
The Manchester Metropolitan University mmu.ac.uk | K-12 & Higher Education | 1,001–5,000 | United Kingdom | Tag manager |
Every company in this group, with the marketing leaders to contact, refreshed with each monthly scan. Book a call and we'll walk you through it.
Book a call →company_tech on gtm.dev →Companies using Reddit Ads in the United Kingdom: common questions
How many companies in the United Kingdom use Reddit Ads?
1,308, as of 7 November 2026 — 8% of the 16,355 companies we found carrying the Reddit Ads 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 on Reddit?
They include Aon, Arup, The London School of Economics and Political Science (LSE), Oxfam and Hack The Box. The table on this page shows 20; the full list has all 1,308.
What do these Reddit Ads advertisers sell?
SaaS / Cloud (144 companies), AI / ML (116) and Enterprise Software (99) are the largest sectors among the 1,247 we could classify.
How big are they?
9.5% have more than 1,000 employees; the most common size band is 11–50 employees.
How do you know a company runs Reddit Ads?
We find the Reddit Ads 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 Reddit Ads study page.
Sell to the 1,308 companies running Reddit Ads 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.