Question 1

What exactly are sister sites in the context of UK online casinos?

Accepted Answer

Sister sites are online casinos that are owned and operated by the same parent company — typically a Ltd or larger corporate org — and licensed under the same UKGC operator licence. Although each brand has its own name, visual identity, and marketing angle, they share the same back-end infrastructure, including game providers, payment processors, customer support teams, and player databases. The term is widely used among UK players and affiliate communities to describe this network of connected casino brands. BeGambleAware messaging and responsible gambling tools are standardised across all sister sites within a regulated group.

Question 2

Can I claim a welcome bonus at a sister site if I've already played at one of its connected casinos?

Accepted Answer

In most cases, no. The vast majority of UK casino operators include clauses in their terms and conditions that restrict welcome bonuses to players who have not previously registered with any brand under the same operator group. The max bonus amount that applies is set at the group level, not per individual site. If you've created an account — even without depositing the min required amount — at a connected brand, you're typically ineligible for the welcome offer at sister sites. Always check whether the bonus is credited instantly or within a set number of hours, the wager requirement that applies, and how many days you have before the offer expires.

Question 3

Does self-exclusion at one casino automatically apply to all its sister sites?

Accepted Answer

It should, under UKGC social responsibility requirements. Operators — whether structured as a Ltd or a larger org — are obligated to have internal processes ensuring that a self-exclusion request at one of their brands is applied across all connected sister sites. For maximum protection, UK players should also register with Gamstop and consult BeGambleAware for independent support. If you self-exclude and then gain access to a connected brand, the operator may be in breach of their licence conditions — this is reportable to the UKGC directly. The day a self-exclusion is confirmed should be the day it takes effect across all connected brands.

Question 4

How can I find out which casinos are sister sites of each other?

Accepted Answer

The most reliable method is to check the UKGC's public register using the licence number found in the footer of any UK casino website — typically displayed alongside the Ltd or org entity name and registered address. The register lists all trading names operating under a single licence, giving you an exact count of connected brands. You can also compare footer legal text, Terms and Conditions documents — paying attention to min deposit amounts, max bonus figures, wager requirements, and how long a bonus takes before it expires — as well as website design patterns and payment method availability. Tools on affiliate comparison sites such as bestbettingclick.com can also help you identify sister sites quickly.

Question 5

Are sister sites safe to play at in the UK?

Accepted Answer

Yes — as long as they hold a valid UKGC licence, sister sites are safe and regulated to the same standard as any other licensed casino. In fact, playing within a well-regulated operator group can offer additional security, as your KYC verification, responsible gambling tools, and complaints processes are all managed by a single regulated Ltd or org entity. The key is to verify the UKGC licence before registering, confirm that the specific brand appears on the public register as a valid trading name, and ensure that BeGambleAware signposting and responsible gambling tools are present and functional on the site.

Question 6

Do all sister sites have the same games and bonus terms?

Accepted Answer

Games are almost always identical across sister sites, because provider agreements are negotiated at the operator org level rather than per brand. You might find minor differences — one brand might feature an exclusive title or omit certain live dealer tables to fit its positioning. Bonus terms, however, can differ more significantly between sister sites even within the same group. The min deposit amount that applies, the max bonus credited, the wager requirement, the number of hours before a bonus is credited, and the day it expires can all vary. Always read the specific T&Cs for the brand you're registering with, and don't assume that the terms you know from one sister site apply identically to another connected brand.

Affiliate Disclosure

Our Affiliate Relationships

Editorial Independence

Identifying Affiliate Links

Regulatory Compliance

Your Responsibility

Questions?