Question 1

What exactly makes two casinos "sister sites"?

Accepted Answer

Two casinos are considered sister sites when they are owned and operated by the same parent company, share the same UK Gambling Commission licence, and run on the same underlying technology platform. They may look and feel different — with distinct themes, branding, and promotional identities — but they share the same back-end infrastructure, payment systems, responsible gambling tools, and regulatory framework. The key distinguishing factor is common ownership, which has significant implications for bonus eligibility, data sharing, and self-exclusion policies.

Question 2

Can I claim a welcome bonus at a sister site if I've already played at one casino in the network?

Accepted Answer

In most cases, no. The vast majority of UK casino operators define "new players" across their entire group, not just at an individual brand level. This means that if you've previously created an account or claimed a bonus at any casino within the same operator group, you will typically be ineligible for the welcome bonus at its sister sites. Always read the bonus terms and conditions carefully — look for clauses mentioning "affiliated sites," "group casinos," or "sister brands" in the eligibility section. Attempting to claim a bonus you're not entitled to could result in winnings being voided.

Question 3

Are sister sites regulated separately by the UK Gambling Commission?

Accepted Answer

Not always. Many sister site networks operate all of their casino brands under a single UKGC licence held by the parent company. This means the regulatory responsibility sits with one entity, and all sister sites must comply with the same UKGC standards. Some larger operators do hold separate licences for different brands, but this is less common. You can verify the licence status of any casino — and identify its sister sites — by searching the UKGC's public register using the licence number displayed in the casino's footer.

Question 4

If I self-exclude from one casino, does it apply to its sister sites too?

Accepted Answer

Yes, in most cases this is exactly what happens within a UK-regulated sister site network. Because responsible gambling tools are managed at the operator level rather than the individual brand level, a self-exclusion, deposit limit, or cool-off period set at one casino will typically be applied automatically across all sister platforms in the same group. Additionally, if you use GamStop (the UK's national self-exclusion scheme), this applies to all UKGC-licensed casinos — not just the one you registered with. This is an important consumer protection feature, and it means sister sites cannot be used to bypass gambling restrictions.

Question 5

How many sister sites can a single UK casino operator run?

Accepted Answer

There is no regulatory cap on the number of brands a single operator can run under one licence, which is why some of the largest UK operator groups maintain portfolios of 50 or more individual casino brands. Jumpman Gaming, for example, is widely known for operating an exceptionally large network of sister sites. However, the UKGC does scrutinise operators to ensure that running multiple brands doesn't compromise player protection standards. Quality, not quantity, should be your guide — a network running 60 mediocre casinos offers less value than one running 8 well-maintained, player-focused platforms.

Question 6

What should I do if I'm unsure whether two casinos are sister sites?

Accepted Answer

The safest and most authoritative approach is to check the UK Gambling Commission's public register at gamblingcommission.gov.uk. Look up the licence number from each casino's footer and compare the parent company details. Alternatively, read each casino's terms and conditions — reputable operators are transparent about their group affiliations, particularly in the bonus eligibility and responsible gambling sections. You can also check the "About Us" page of each casino, contact customer support directly, or consult trusted affiliate review sites that maintain regularly updated sister site directories. Never assume two casinos are unrelated just because they look different — visual branding is easily changed, but operator ownership is a matter of public record.

Affiliate Disclosure

Affiliate Commissions

Editorial Independence

Identifying Affiliate Links

Regulatory Compliance

Your Responsibility