Find Any Casino’s Sister Sites — And the Operator Running All of Them.

A casino sister site is an online casino that shares a parent company, UKGC licence, or operating platform with one or more other casino brands. Sister sites may look completely different on the surface but are connected at the corporate and infrastructure level. This affects self-exclusion propagation, bonus eligibility, withdrawal processing, and regulatory accountability.

The most reliable method is to check the UKGC licence register, which lists the licence holder for every UK-licensed gambling brand. If two casinos list the same licence holder, they are sister sites. You can also check the site footer. Alterplay’s index cross-references these sources and maps over 2,500 UK brands.

Ownership determines how your data is handled, whether a self-exclusion will propagate, what regulatory track record applies, and whether you’re eligible for welcome bonuses if you already hold an account with a sister site. An operator fined by the UKGC carries that record across every brand on its licence.

A white-label casino is a brand that operates on another company’s platform and licence. The brand owner controls marketing; the platform provider supplies technology, game integrations, payment processing, and — in most cases — the UKGC licence. The platform provider is the entity accountable to the regulator.

If both brands operate under the same UKGC licence, the operator is required to exclude you from all brands on that licence. If the sister site operates under a different licence — for example, a white-label brand on a separate licence holder’s platform — the exclusion may not automatically apply.

A casino network is a group of online casino brands connected by shared ownership, licensing, or platform infrastructure. Networks range from small operators running two or three brands to large groups like Entain, which operates dozens of brands across multiple licence holders.

We monitor the UKGC licence register, Companies House, and operator websites on a rolling basis. Every article carries a ‘last verified’ date. Network profiles are reviewed monthly. Material changes — losing a licence, migrating platforms, enforcement actions — are updated as soon as confirmed.

No. Alterplay is a research index, not a recommendation engine. We document who owns and operates each brand, what licence they hold, what regulatory history applies, and how brands are connected. We do not assign subjective quality scores.

Most directories describe casinos based on marketing materials. Alterplay’s research starts with public records: UKGC licence data, Companies House filings, and operator disclosures. We trace the corporate chain behind every brand and monitor for changes in ownership and licensing.