Kwiff Sister Sites
The operating company, the brand family, and what shared licensing actually means for the customer's experience and exclusion choices.
The operating company
Kwiff is operated by Eaton Gate Gaming Ltd, a British company registered in 2015 and holding UK Gambling Commission licence number 48707. The company is owned by a private investment vehicle and has, throughout its operating history, been a single-brand operator.
This is unusual on the modern British market, where the larger operators — Entain, Flutter, 888 — control portfolios of a dozen or more brands trading under common licensing. Kwiff is, in 2026, still a single-brand operation. There is no formal "sister site" within the Eaton Gate group.
What "Kwiff sister sites" actually refers to
The term is most often used loosely on review sites to refer to other UKGC-licensed casinos that share characteristics with Kwiff — similar slot libraries, comparable promotional structures, similar regulatory standing. By that loose standard, the closest editorial comparators are:
- SpinYoo — operated by White Hat Gaming. Comparable slot library, similar British-market positioning.
- Casumo — distinct gamified style. Comparable studio mix.
- Mr Vegas Casino — operated by Videoslots Ltd. Similar focus on RTP transparency.
- Bzeebet — comparable sportsbook-led model with feature-driven promotions.
None of these are formal sister sites in the corporate sense. They are simply the casinos a Kwiff customer is most likely to enjoy if they want a comparable experience elsewhere.
Self-exclusion and GAMSTOP
Kwiff is connected to GAMSTOP, the UK's national self-exclusion scheme. A GAMSTOP exclusion applied to any UKGC-licensed brand applies to Kwiff automatically. This is mandatory for every UKGC-licensed operator and is the practical reason that "sister site" research matters less in the British market than the offshore market: regulated self-exclusion is centralised.
A player who has self-excluded from Kwiff cannot register a new account anywhere in the UKGC-licensed market for the duration of their exclusion. The unregulated market is a separate matter and one we would not recommend any customer engage with under any circumstances.
What this means for the customer
The single-brand nature of Eaton Gate Gaming means the Kwiff customer experience is concentrated rather than diluted. The operator is not running a portfolio of brands competing for marketing budget — every product decision affects every customer. For the patient player, this is a feature, not a limitation.