November 2026 edition ยท Source records checked:
Evidence Snapshot
- 21.co.uk is listed Active under LeoVegas Gaming PLC, UKGC account 39198.
- Its terms V6.0, dated 9 March 2026 name the same operating company.
- Five verified sister brands; products, apps and similarly named casinos are not added to that count.
- Public-source evidence and publisher imagery only, with no private-account or transaction test.
Which casinos are verified 21.co.uk sisters?
The UKGC record connects the six domains, including 21.co.uk itself. The five other entries form the sister list below. This avoids counting the app, a live-casino category or a jackpot feature as another independent casino.
Use the exact domain when an older article disagrees. A historic company name, worldwide portfolio or similarly numbered website may describe something real but still fail to establish the current UK relationship. Our operator-check guide sets out that distinction.
| Sister brand | Registered domain | Comparison angle |
|---|---|---|
| Slot Boss | slotboss.co.uk | Slots and live-table product evidence |
| Pink Casino | pinkcasino.co.uk | Bingo and Slingo alongside casino games |
| LeoVegas | leovegas.co.uk | The reciprocal family and account-rule explanation |
| BetMGM UK | betmgm.co.uk | UK-specific casino branding and sports context |
| BetUK | betuk.com | A sports-led relative, not an assumed copy of 21.co.uk |
The casino, live tables and app are parts of one brand
21.co.uk's official live-casino page and publisher app listing show different ways to browse its gaming products. A separate icon, menu or category does not establish a separate contracting business. The app listing is useful for identifying the publisher, not for multiplying the sister count.
For a table comparison, preserve the full title and supplier, then examine that version's rules. For a slot, record the complete edition rather than just a game family. Similar game art can appear at both related and unrelated casinos.

What the account hub tells you, and what it does not
The official account-hub image groups balance, history, account information and support within the 21.co.uk interface. It is a view of the publisher's product presentation, not a WildCrown customer account or evidence that other brands use the same balance.
If you need a statement, support response or record of a setting, start with the brand that holds the account in question. A central-looking menu does not establish that one download includes transactions from Pink Casino or BetMGM. Specify the relevant brands when making a cross-account enquiry.
Likewise, do not interpret a familiar account design as proof that saved credentials should work elsewhere. Recover a forgotten 21.co.uk login through its official route. A new profile is not an appropriate substitute for account recovery.

Gigantic Jackpots: a shared pool is not a shared wallet
The official Gigantic Jackpots conditions describe participation through eligible games, an opt-in and an additional jackpot bet. They also describe the progressive pool as shared across the LeoVegas family. That is product-level evidence beyond the basic ownership record.
It does not mean your 21.co.uk cash balance becomes available at another casino, or that every game at every sister contributes. Read the rules attached to the eligible game and separate the base-game stake from any additional participation.
The pool total changes, so an older screenshot cannot establish the amount available now. Check the current display and the participation rules attached to the game.
Opening another account is an eligibility question
The 21.co.uk agreement names LeoVegas Gaming PLC and sets out account eligibility in clause 5, duplicate-account rules in clause 6 and checks in clause 8. The per-brand rule is not the whole agreement: previous closures and gambling exclusions are relevant too.
Ask the intended destination how its present terms apply to your existing accounts before registering. Keep a clear distinction between recovering an account, opening an account with another brand and qualifying for a promotion. A response to one question does not settle the others.
Check the reach of each limit or break
The 21.co.uk publisher image shows a set of gambling-control options. It does not show whether a specific request is active, or whether the same option has been applied to another account. A screenshot of a menu should never be treated as proof that a person is protected across sites.
Published BetMGM guidance explicitly includes 21.co.uk when discussing the family scope of spend limits and self-exclusion, while describing time-outs as per-site. That is a reason to ask precise questions about the tool selected, not to generalise every setting across the whole group.
If the intention is to stop gambling, tell support which accounts are involved and request confirmation of the coverage. Do not test a restriction by gambling elsewhere. Independent help is available through our responsible-gambling page.

Keep a 21.co.uk comparison tied to the current product
The group portfolio gives broad brand context, but a current product decision needs the destination's own information. Older television references, game promotions or general brand descriptions should not be treated as proof of today's schedules, catalogue or account features.
For a promotion, retain its date, qualifying product, eligibility wording, expiry and any restrictions. For a particular game, record the edition and supplier. For an account issue, retain the original message and ask the correct brand for clarification. These are separate checks rather than a single score for whether a sister is better.
Find other researched families in the sister-site directory.
FAQ
Who operates 21.co.uk?
The checked UK terms and public domain record identify LeoVegas Gaming PLC, account 39198. Use that exact company and domain when comparing another casino's evidence.
Is every casino with 21 in its name related?
No. Similar names do not establish ownership. This guide concerns 21.co.uk specifically; another domain needs its own legal-company and licence check.
Are 21.co.uk and Slot Boss sister sites?
Yes. Both domains appear under LeoVegas Gaming PLC. That connection does not establish identical game catalogues, account balances or promotion eligibility.
Does the app create a separate 21.co.uk account?
The app is presented as access to the branded service, not a separate sister casino. Use official account guidance and recovery rather than opening another profile just because you change devices.
Does a shared jackpot mean I can move money between sites?
No such transfer right follows from a shared prize pool. The jackpot conditions describe participation in that feature; they do not establish a family-wide wallet.
Can a 21.co.uk restriction affect another sister brand?
Some published family protections have broader scope, while others differ by tool. Ask support to confirm the restriction and affected accounts. A sister brand must not be used to work around a protection.
Sources Checked
- UKGC: LeoVegas Gaming PLC active domain names, account 39198
- UKGC: LeoVegas Gaming PLC licence activities
- 21.co.uk: terms V6.0, 9 March 2026
- 21.co.uk: official live-casino product page
- 21.co.uk: Gigantic Jackpots participation conditions
- LeoVegas Gaming: 21.co.uk App Store listing and publisher images
- LeoVegas Group: official brand portfolio
- BetMGM UK: published safer-gambling tools and cross-brand scope
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