About Us

All Sister Sites is an independent UK guide to casino sister sites: the networks of differently branded online casinos that actually sit on the same licence, the same platform and, usually, the same terms. Most UK online casinos are white-label brands, and a handful of operating companies stand behind hundreds of seemingly separate sites. Our job is to untangle that, so that before you sign up anywhere you can see who really runs it, which other brands they run, and whether the “new” casino you have found is genuinely new or a familiar operation wearing a fresh logo.

What we actually do

For every brand we cover, we trace the operating company through the UK Gambling Commission public register, confirm it against the casino’s own live site, and map out the genuine sister sites that share its licence. We check whether brands are still trading before we recommend them, flag closures when they happen, and give clear warnings on offshore sites that fall outside UK regulation. The full step-by-step process, including how we verify licences, cross-reference sources and handle the January 2026 bonus rules, is set out on our How We Review Casinos page.

How the site is funded

We will be plain about this: All Sister Sites is funded by affiliate commissions. When readers click through to some of the casinos we feature and go on to sign up or deposit, we earn a referral fee, and that is what keeps the site running. It does not decide what we write. Ratings cannot be bought, criticism cannot be paid away, and our sister-site lists come from the licence register rather than from whoever happens to have an affiliate deal. We also cover plenty of brands that earn us nothing at all, including closed casinos and offshore sites we tell readers to approach with caution.

Who writes the reviews

Every review on this site is written and maintained by a named author, not published anonymously. Alex Morris is a Manchester-based writer and SEO specialist with more than fourteen years of experience, and handles a large share of our casino reviews and operator research. Mark F covers reviews and network research across the site, with a particular focus on tracking operator migrations and brand closures. Their author pages list the reviews each has written, and every page shows when it was last updated.

Responsible gambling

Everything on this site is intended for readers aged 18 and over, and gambling should only ever be entertainment with money you can afford to lose. If it stops being that, free and confidential help exists: GambleAware runs the 24-hour National Gambling Helpline on 0808 8020 133, and GamStop lets you exclude yourself from every UK-licensed gambling site in one step. No offer we list is worth more than your financial or mental wellbeing.

Get in touch

Spotted an error, a stale offer or an operator change we have missed? We would genuinely like to hear about it. Head to our contact page and we will check your report against the Gambling Commission register and the live site, then correct anything we have got wrong.