The most striking part of the new analysis is not the size of the market, but who is capturing attention inside it. According to WARC figures cited by the Betting and Gaming Council, licensed operators now account for only a little over half of UK gambling advertising spend, down from more than 80% a few years ago. On the same trendline, that share is expected to slip below 50% within two years, leaving illegal and unregulated operators in front by 2028.
The Shift Is Now Visible in the Numbers
The pace of change is sharp. BGC says licensed operators are on course to cut ad spend by 9.2% this year to about £1.1bn, while unregulated operators are projected to grow by 32%. Separate reporting on the same WARC study says the black market’s share of total gambling ad spend had already climbed from 16.2% in 2019/20 to 31.3% in 2023/24. The figures suggest that this is no longer a fringe problem at the edges of the market.
Search, Social, and Sponsorship Are Fueling the Rise
WARC’s findings show that search, social media, and sponsorship are among the primary drivers of the illicit market. These channels are optimized for scale and frequency. They enable offshore firms to connect with people through the media they are already visiting. This is different from relying solely on organic discovery.
One vivid example is sponsorship. Regulated sponsorship spend peaked some years ago and has since plateaued. As of now, it is projected to decline. But the opposite is true for unregulated sponsorship spend. As per the media coverage of the study, illegal operators are poised to command over 50% of gambling sponsorship outlay by October 2027.
The Next Fight Is About Enforcement
The issue appears to be bigger than a media-spend trend. Operators inside the UK framework and those outside it work differently. Licensed companies are subject to age checks, safer-gambling tools, and direct regulatory oversight. Illegal operators are not.
The government has already acknowledged the pressure. In parliamentary answers published this year, ministers said the Gambling Commission will receive an extra £26m over three years. They also confirmed the launch of an Illegal Gambling Taskforce focused on the illegal market. That response suggests policymakers see enforcement as central to the next stage of the debate (alongside advertising rules).
Conclusion
If regulated brands continue losing share of attention while illegal operators keep gaining share of attention through digital and sponsorship channels, regulation becomes more difficult. It remains to be seen whether the UK will succeed in slowing down the rate at which unregulated supply builds awareness.
