BetMGM Sister Sites: 5 UK Sites Under the Same Operator

If you are looking for BetMGM sister sites in the UK, there are five current brands under the same operator: LeoVegas, BetUK, Pink Casino, Slot Boss and 21.co.uk.

All five sit alongside BetMGM under LeoVegas Gaming PLC, rather than under Entain. That distinction matters because the BetMGM brand has a different corporate setup in North America.

If you want to check the main brand first, see our BetMGM review. For other bookmaker groups, we also maintain a wider betting sister sites directory.

Current BetMGM Sister Sites in the UK

These are not simply sites using similar software. They are all currently operated by LeoVegas Gaming PLC.

BetMGM’s own UK terms list the six brands together, while the UK Gambling Commission register shows their domains under the same operator licence.

That gives us a much cleaner definition than simply listing sites that look or feel similar to BetMGM.

LeoVegas

LeoVegas is probably the most recognisable name in the group after BetMGM.

It combines casino games with sports betting and has been part of MGM Resorts’ wider online gambling business since MGM acquired LeoVegas.

For a BetMGM user, LeoVegas is one of the closest genuine sister brands because it offers both sportsbook and casino products rather than being casino-only.

The important point here is not that the sites necessarily offer the same bonuses or interface. It is that both are operated in the UK by LeoVegas Gaming PLC.

BetUK

BetUK is another genuine BetMGM sister site and one of the more relevant options for someone primarily interested in sports betting.

It offers sportsbook markets alongside casino products, so its audience overlaps more closely with BetMGM than brands such as Pink Casino or Slot Boss.

BetUK is also useful when trying to understand the BetMGM family because both brands sit under the same UK licence structure.

That does not mean their offers, account rules or product selection will always be identical.

Pink Casino

Pink Casino sits in the same operator group but has a much stronger casino focus.

So although it is a genuine BetMGM sister site, it is not necessarily a direct alternative for someone whose main interest is football, horse racing or other sportsbook markets.

This is why simply giving readers a list of sister sites is not enough. Some share the same operator but serve a different type of player.

Slot Boss

Slot Boss is another casino-led brand operated by LeoVegas Gaming PLC.

Its presence in the group is useful because it shows that the BetMGM UK family extends beyond traditional sportsbook brands.

If you are searching specifically for another sports betting site, BetUK or LeoVegas may be more relevant. If you are simply checking which brands belong to the same operator, Slot Boss belongs on the list.

21.co.uk

21.co.uk is the sister site that is easiest to miss.

Some BetMGM sister-site lists still show only four brands, but 21.co.uk is also currently operated by LeoVegas Gaming PLC.

That means the current UK list is five sister sites, not four.

This is one reason we prefer checking the operator’s own terms and the Gambling Commission register rather than relying only on older comparison pages.

You can verify the current operator and active domains through the UK Gambling Commission register.

Why Ladbrokes and Coral Are Not BetMGM UK Sister Sites

This is where the BetMGM name causes confusion.

In the United States and Canada, BetMGM operates through a 50/50 joint venture between MGM Resorts and Entain.

Entain also owns major UK gambling brands such as Ladbrokes and Coral.

That might make it seem logical to call Ladbrokes or Coral BetMGM sister sites.

But BetMGM UK is not operated by Entain.

The UK site is operated by LeoVegas Gaming PLC, which sits within MGM Resorts’ LeoVegas business. BetMGM itself explains this separation in its UK help information.

So for someone searching for BetMGM sister sites in the UK, we would not put Ladbrokes, Coral, bwin or other Entain brands into the main sister-site list.

They are connected to the wider BetMGM story through the North American joint venture, but that is a different relationship.

If you are researching those groups separately, see our Ladbrokes sister sites and Coral sister sites guides.

Do BetMGM Sister Sites Share the Same Account?

No. Being operated by the same company does not mean you should expect one login or balance to work across every brand.

BetMGM, BetUK, LeoVegas and the casino-focused sister sites have their own websites and customer-facing accounts.

You should expect differences in:

• registration and verification;
• promotions;
• sportsbook or casino products;
• withdrawal processes;
• account restrictions;
• loyalty features.

The operator relationship tells you who runs the brands. It does not turn them into one combined gambling account.

One Shared-Operator Detail That Does Matter

Although accounts remain separate, sharing an operator can matter for safer-gambling controls.

BetMGM UK’s own help information explains that certain exclusions across brands operated under the same licence may need to be reflected across the wider LeoVegas Gaming PLC group.

That is a much more meaningful connection than simply saying two sites have similar designs or game libraries.

It is also another reason to distinguish real same-operator sister sites from sites that are merely alternatives.

Which BetMGM Sister Site Is Closest to BetMGM?

If your main interest is sports betting, BetUK and LeoVegas are the closest comparisons within the same UK operator group because both offer sportsbook products.

Pink Casino, Slot Boss and 21.co.uk are genuine sisters too, but they are more casino-focused.

That does not make one automatically better than another. It simply means they serve slightly different parts of the same operator portfolio.

The Current BetMGM Sister-Site List

As of September 2026, the five current UK BetMGM sister sites we can verify are:

• LeoVegas
• BetUK
• Pink Casino
• Slot Boss
• 21.co.uk

All five are operated by LeoVegas Gaming PLC, the same UK company behind BetMGM.

The main thing to avoid is mixing this UK operator family with Entain brands simply because Entain is involved in BetMGM’s North American joint venture. For a UK user looking for actual same-operator sites, the LeoVegas Gaming PLC brands are the relevant group.