Sister Casino UK
Complete map of sister sites
Most casinos operate as part of a wider group, sharing a licence and a back-end. We map every UK-facing operator so you can spot the network at a glance, and find the sister site worth playing.
- Sister-site guides
- 320
- Casinos listed
- 55
- Last updated
- 15 Oct 2026
A sister site is a casino run by the same company as another casino. Same owner. Often the same account rules and complaint process. Different name, design and welcome offer.
We earn commission when you open an account through some links on this site. That can affect which casinos we feature and where they appear. It doesn’t change the facts we report, the terms we quote or the warnings we attach. Read our full affiliate disclosure.
Which UK Sister Sites Can You Compare Here?
Each of these brands has its own sister sites page. Pick the one you play at now, and you’ll see every brand that shares its owner and what that means for your account.
Jackpotjoy
Jackpotjoy sister sites
MrQ
MrQ sister sites
PlayOJO
PlayOJO sister sites
Mr Vegas
Mr Vegas sister sites
Midnite
Midnite sister sites
The Sun Vegas
The Sun Vegas sister sites
Fabulous Bingo
Fabulous Bingo sister sites
Dream Jackpot
Dream Jackpot sister sites
Winomania
Winomania sister sites
Every brand above held an active Gambling Commission licence when we last checked it on 15 October 2026.
Before you compare offers: set a deposit limit at any casino before you claim a bonus. Every UK-licensed casino has to offer one.
How Do These UK Sister Sites Compare Right Now?
This table covers the 9 brands above. Every offer shows its wagering, because a bonus figure on its own tells you very little.
| Casino | Welcome offer | Withdrawals | Read first | Visit |
|---|---|---|---|---|
|
JackpotjoyGamesys Operations Limited · 38905
|
Play £10, get 100 free spins on Fishin Frenzy The Big Catch 2, or £30 of free bingoNo wagering on either option | Processed within 4 to 24 hours, then up to 3 working days by Visa Debit | You must opt in before your first deposit, and your choice is locked once you deposit. | Visit site 18+ · T&Cs apply |
|
MrQTek Fox Ltd · 60629
|
100 free spins on Big Bass Splash when you deposit £10 or moreNo wagering, winnings uncapped | Most processed instantly, otherwise up to 2 working days | You have to use the spins within 48 hours. Players in Northern Ireland are excluded. | Visit site 18+ · T&Cs apply |
|
PlayOJOSkill On Net Limited · 39326
|
50 free spins on Big Bass Bonanza with your first deposit of £10 or moreNo wagering | Aims to process within a few hours | Withdraw your deposit unplayed after taking the spins and you lose the bonus. Northern Ireland is excluded. | Visit site 18+ · T&Cs apply |
|
Mr VegasVideoslots Limited · 39380
|
100% first deposit bonus up to £50, plus 11 free spins10x the bonus, released in 10% steps | Aims to process within 48 hours of receiving your documents, with no guarantee | Bets are capped at £20 or half the bonus, whichever is lower. Its promotions page still shows an older 35x offer, so go by the UK terms page. | Visit site 18+ · T&Cs apply |
|
MidniteMidnite Limited · 101839
|
Bet £20, get 100 free spins on Big Bass Splash (code BETGETCASINO)Not stated for spin winnings, so assume wagering applies until Midnite confirms | Most within minutes, aims for 72 hours, some up to 5 working days | You have to wager the £20 within 14 days of signing up, and the spins expire 7 days after they arrive. | Visit site 18+ · T&Cs apply |
|
The Sun VegasRed Rock Managed Services Limited · 67754
|
100% of your first deposit up to £100, plus 100 free spins10x the bonus and 10x spin winnings, within 3 days | Completed on its side within 24 hours, then up to 3 working days by card | Debit cards only. Neteller, Skrill and PayPal deposits don’t qualify. | Visit site 18+ · T&Cs apply |
|
Fabulous BingoRed Rock Managed Services Limited · 67754
|
Deposit and stake £10 for 100 free spins or a £30 bingo bonus (ends 31 October 2026)Spin winnings 10x within 3 days, bingo bonus 4x within 7 days | Completed on its side within 24 hours, then up to 3 working days by card | Winnings from the free spins are capped at £200. Debit cards only. | Visit site 18+ · T&Cs apply |
|
Dream JackpotJupiter Gaming Limited · 67098
|
Deposit £20 and wager £20 for 20 free spins on Big Bass SplashNo wagering on spin winnings | Not stated by Dream Jackpot. Test with a small withdrawal first. | Claim the spins within 7 days. Withdraw your deposit unplayed and you lose them. One offer per household. | Visit site 18+ · T&Cs apply |
|
WinomaniaAnakatech Interactive Limited · 48789
|
100% first deposit bonus up to £50, plus 50 spins on Big Bass Splash (code WINO100)10x the bonus and 10x spin winnings, within 2 days | Not stated by Winomania. Test with a small withdrawal first. | Cash-out is capped at 3x the bonus, and at £50 from the spins. Maximum bet £1. | Visit site 18+ · T&Cs apply |
Every row checked on 15 October 2026 against the Gambling Commission register and each casino’s own terms. New customers only. Terms change often, so check them on the casino’s site before you deposit.
What Is a Casino Sister Site?
A sister site is a casino run by the same company as another casino. In the UK that company holds the licence, and every brand it runs trades under it. The logo changes. The business behind it doesn’t.
That isn’t the same as 2 casinos sharing software. Plenty of unrelated casinos run on the same platform or carry the same games, and that tells you nothing about who owns them or who handles your complaint. We only call a brand a sister site when the licence record ties it to the same operator. Shared software isn’t shared ownership.
What Carries Over When You Join a Sister Site?
Here’s what catches people out. A new brand feels like a fresh start, but several things can follow you from one site to the next.
Your welcome bonus
Many groups allow only one welcome offer per person or household across all brands. Taking it at one site can rule you out at the rest.
Your self-exclusion
An exclusion at one brand may cover every brand on the licence. Check the terms, and ask in writing if they’re unclear.
Your documents
Some groups share verification across brands. Others make you start again, so keep your ID and proof of address ready.
Your complaint
The same company handles it, no matter which brand you started with, and the same dispute service usually applies.
Your limits
Deposit limits are often set brand by brand. A limit at one site doesn’t always follow you to the next.
Before you open a second account, search the casino’s terms for “group”, “affiliated” and “same management”. Those clauses tell you what comes with you.
Is a Bigger Welcome Bonus at a Sister Site Worth It?
There’s a but. Since 19 January 2026, UK casinos can’t set wagering above 10x the bonus, which helps you, but it’s still worth doing the sum before you sign up.
Take a £50 bonus with 10x wagering. You’d need to bet £500 before you can withdraw any of it. A £20 bonus with no wagering lets you withdraw £20 straight away. The smaller offer is often the better deal.
Stake limits apply during wagering too. On online slots, you can’t bet more than £5 a spin if you’re 25 or older, or £2 if you’re 18 to 24. Check the wagering and the maximum win before you look at the headline figure.
How Can You Check Who Runs a Casino?
Find the footer details
Scroll to the casino’s footer. Find the company name and the Gambling Commission account number.
Search the register
Search that account number on the Gambling Commission public register.
Check the status
Open the licence entry. Confirm the status reads active.
Read the trading names
Read the list of trading names and domains. Every brand listed there is a sister site.
Compare with the terms
Compare the company in the casino’s terms with the register. If the 2 differ, ask live chat which company holds your account and save the transcript.
Casino Sister Sites by Operator
A network is a group of brands run by one licensed company. Here’s who runs each UK brand we compare, with the account number to check on the Gambling Commission register.
Gamesys Operations Limited
UKGC account 38905Jackpotjoy, Bally Casino and Double Bubble Bingo, plus white-label sites such as Virgin Games and Monopoly Casino.
Red Rock Managed Services
UKGC account 67754The Sun Vegas, Fabulous Bingo, Sun Bingo and Fabulous Vegas. Took over from VF2011 Limited in March 2026.
Skill On Net Limited
UKGC account 39326PlayOJO and more than 50 other trading names, including Slingo, Spin Genie and Swift Casino.
Jupiter Gaming Limited
UKGC account 67098Dream Jackpot, alongside 666 Casino, King Casino, Lad Casino and Red Casino.
Anakatech Interactive Limited
UKGC account 48789Winomania and Lucky Mate, plus white-label brands such as 7Bet and BetCrown.
Midnite Limited
UKGC account 101839Midnite only. It took the brand over from Dribble Media Limited in August 2026.
What Can You Do If a Sister Site Won’t Pay You?
First, raise a formal complaint with the operator. Use its complaints procedure, not only live chat. Keep every email and chat transcript.
The operator has 8 weeks to resolve the complaint. If it has not, or you disagree with its final response, take it to the alternative dispute resolution (ADR) provider named in its terms, for example, IBAS. ADR is free for players.
Check the licence before you deposit. These protections apply only to casinos licensed by the Gambling Commission.
Can You Use a Sister Site If You’ve Self-Excluded?
No, and we wouldn’t want you to try. GAMSTOP covers every online casino licensed in Great Britain, so a GAMSTOP exclusion blocks the sister sites as well as the brand you started with.
If you’ve excluded only one brand, ask the operator in writing whether the exclusion covers every brand on its licence. If you’re unsure, register with GAMSTOP as well. It’s free. You can also block gambling payments in most UK banking apps, and blocking software stops access on your devices.
If gambling is causing you problems, call the National Gambling Helpline on 0808 8020 133. It’s free and open 24 hours a day.
How Do We Rate Sister Sites?
We weight withdrawals and complaints highest, because that’s where you lose most when something goes wrong. Games count least. A huge lobby doesn’t help if you can’t get paid.
Withdrawal terms and payout record
How fast you get paid, the caps on what you can take out, and what players report about payouts.
Bonus fairness
Wagering, caps and expiry: what the offer is worth once you do the sum.
Complaint record and dispute handling
What players complain about, and whether the operator settles it or sends it to ADR.
Safer gambling tools
Deposit limits, time-outs and self-exclusion, and how easy they are to find.
Account and verification terms
When the casino asks for documents and what it can do with your account.
Games and product
The lobby counts least. A huge one doesn’t help if you can’t get paid.
Every score is built from the licence record, the casino’s own terms and dated player feedback with its sample size. Read the full How We Rate page to see how each part is scored.
Why Should You Trust Sistercasinouk?
You’re trusting us with a decision about your money, so here’s exactly how we work.
Every brand matched to its licence
We only call a casino a sister site when its licence record ties it to the same operator. A shared design or software isn’t enough for us.
Every check has a date
Each page shows when we last checked the licence and the terms. If the date is more than 90 days old, treat the figures with care.
We read the terms you’d skip
Withdrawal caps, bonus removal and verification clauses get as much space as the welcome offer. That’s where your money is decided.
Complaints, not star ratings
We report what players complain about, with the source, figure, and date. A score without a sample size tells you nothing.
How we’re paid, in plain words
We earn commission from some casinos. It can affect what we feature, but never the facts or the warnings we print.
Mistakes fixed in the open
Spot an error? Email [email protected] and we’ll correct it, with a note on the page saying what changed.
Who Checks These Casinos for You?
18+18+ only. Gambling can be addictive. Set a deposit limit before you play, and take breaks. For free, confidential support, call the National Gambling Helpline on 0808 8020 133 or visit GamCare. To block every UK-licensed gambling site at once, register with GAMSTOP.
Frequently Asked Questions
What are casino sister sites?
They’re casinos run by the same licensed company. Each brand has its own name, design and welcome offer, but the same business holds your account, sets many of the rules and handles your complaints. The Gambling Commission register lists every brand a company runs.
Are sister sites safer than other casinos?
No safer and no riskier by default. A sister site is only as reliable as the operator behind it. Check the operator’s licence, withdrawal terms, and complaint record, rather than trusting a brand because you liked its sister.
Can I claim a welcome bonus at every sister site?
Often you can’t. Many groups allow one welcome offer per person or household across all their brands. Search the terms for “group” or “affiliated” before you deposit, or ask live chat and keep the answer in writing.
Does self-exclusion at one casino cover its sister sites?
It may, depending on the operator. Ask in writing whether your exclusion covers every brand on the licence. A GAMSTOP registration covers all of them, along with every other online casino licensed in Great Britain.
How do I find out who owns a casino?
Look for the company name and account number in the casino’s footer. Search the number on the Gambling Commission public register. The entry lists the licence status and every trading name the company uses.
Why do casino groups run several brands?
Different brands reach different players, with their own themes, games and offers. Running them on one licence and one platform lets the company share costs. For you, it means the choice looks wider than it really is.