Blask Data Highlights Bet365's Lead in UK Brand Rankings for May 2026

Blask's analysis of the UK iGaming sector for May 2026 places Bet365 at the top of brand power rankings with a 12.59% share, and the data shows Ladbrokes, William Hill along with several other operators following in close succession while Entain and Flutter maintain strong positions at the group level. The report draws from accumulated brand-power rankings and Competitive Earning Baseline metrics that track performance across multiple categories during this period.

Brand Power Rankings and Market Positions

Bet365 secured the leading position according to the May 2026 figures, which reflect a combination of player engagement, revenue contribution and overall market presence, and the next tier includes Ladbrokes and William Hill that continue to hold significant shares amid ongoing competition. At the corporate group level Entain and Flutter lead the sector, a pattern that has persisted through recent months as these entities consolidate multiple brands under unified operations. Observers note that such concentration at the group level often influences how individual brands allocate marketing resources and respond to regulatory shifts.

Online Casino Performance Amid Tax Changes

Online casino revenue recorded a 14.03% month-on-month increase in May 2026 even after the remote gaming duty rose to 40% in April, and this growth stands in contrast to the broader trend where most major brands experienced monthly declines. The category indices compiled by Blask reveal that casino products attracted sustained player activity during the period, which helped offset softer performance in other verticals for several operators. Data shows that the duty adjustment did not immediately suppress overall casino volumes, although individual brand results varied depending on promotional strategies and player retention efforts.

Year-on-Year Trends and Continued Growth

Several top brands posted year-on-year gains despite the April 2026 tax increase, and the Blask report notes that this continued expansion occurred across both individual operators and the leading groups. The data indicates that established names such as Bet365 maintained momentum through diversified offerings while newer entrants struggled to close the gap in brand power scores. Those who've studied the sector's response to previous duty adjustments point out that larger operators often absorb cost pressures more effectively through scale and existing customer bases.

Monthly declines affected most major brands in the May snapshot, yet the overall market picture remains one of selective growth concentrated in the casino segment. The report highlights that operators responded to the duty rise with adjusted bonus structures and loyalty programmes that appear to have supported retention among active players. What's interesting is how the combination of digital-first habits and product preferences has created pockets of resilience even as aggregate brand metrics softened for some names.

Implications for Market Structure

Entain and Flutter's dominance at the group level underscores the advantages of portfolio scale in navigating tax and regulatory environments, and the May 2026 data suggests these entities continue to capture disproportionate shares of player attention and spend. Individual brand rankings, however, reveal that Bet365's standalone performance remains a benchmark that competitors reference when planning campaigns. The young player base with its documented risk profile also raises questions for future compliance and responsible gambling initiatives as operators seek to balance growth with regulatory expectations.

Conclusion

Blask's May 2026 overview captures a market in transition where brand power remains concentrated, online casino volumes expanded despite higher duty rates, and demographic patterns point to sustained digital engagement. The figures reveal both resilience in specific categories and pressure on individual operators as the sector absorbs the April tax changes. Continued year-on-year gains for leading names indicate that scale and product focus can still deliver results even when monthly trends turn negative for many participants.