The 21.co.uk sister sites in a nutshell
21.co.uk is the live casino specialist among the six brands on LeoVegas Gaming PLC’s Gambling Commission licence 39198. Its sister sites are LeoVegas, BetMGM, BetUK, Pink Casino and Slot Boss.
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At a glance
Brand
21.co.uk, where the web address is also the brand name.
Operator
LeoVegas Gaming PLC, Sliema, Malta; an MGM Resorts International subsidiary
UKGC licence
39198; one of six active brands
Products
Live casino first, plus slots, tables, slingo, video bingo and crash games; no sportsbook
Best sister sites
LeoVegas, BetMGM, BetUK, Pink Casino, Slot Boss
Welcome offer
£5 in Golden Chips for staking £10 on live casino games
Payments
Visa debit, PayPal, Apple Pay and bank transfer, all fee-free with published limits
Last checked
17 September 2026
I’ve profiled five 21.co.uk sister sites below, the whole of a family compact enough to cover in full, so you can see exactly which brand fits which player.
LeoVegas
- The flagship: The brand the whole family is named after, a Swedish-founded mobile casino that now carries the flag for MGM in Britain.
- Spins with no strings: Its sign-up deal pays 50 wager-free spins on Big Bass Splash for a £10 deposit wagered once; whatever they win is cash.
- Three products: Casino, live casino, and a sportsbook, where 21.co.uk sticks to tables and slots.
- Home of the big pot: The Gigantic Jackpot network both brands share currently stands over £43 million, and LeoVegas is where it started.
- Best for: Players who want one casino that does everything, and has an app that keeps winning awards.
BetMGM
- The other live specialist: Its live tables stream from real Las Vegas venues, the in-family rival to 21.co.uk’s studio-based attractions.
- The biggest opening hand: 200 free spins for playing through £10 on the casino side, plus £40 in free bets for a £10 sports bet, the family’s fullest offer.
- Vegas names on the reels: MGM-exclusive slots like Bellagio Diamonds trade on properties the parent company owns.
- Football muscle: Premier League partnerships and a Kambi sportsbook that 21.co.uk simply doesn’t have.
- Best for: Live casino players who want the American-accented version with a full sportsbook attached.
BetUK
- The British bookmaker: Sports-first and racing-friendly, with Manchester City as its official UK betting partner.
- Four free bets: £40 for a £10 qualifying bet, paid as two football acca tokens and two sports multiples.
- A casino in the back room: Around 2,000 casino games behind the sportsbook, the reverse of 21.co.uk’s arrangement.
- Same wallet rules: The family’s shared payment set and the withdraw-anytime discipline apply here identically.
- Best for: Football bettors who’d treat the casino as an occasional side room rather than the main event.
Pink Casino
- The one with a real bingo wing: Casino, live casino and bingo tabs, and the bingo is the star product rather than a token page.
- Same wager-free deal: Its sign-up offer runs the family’s 50-spin formula at a £10 deposit and 1x, winnings paid as cash.
- A look you can’t mistake: The pink-and-glam identity is the loudest styling in a family of fairly sober brands.
- The senior citizen: Trading since 2010, it’s older than the flagship it now shares a licence with.
- Best for: Players who split their sessions between bingo rooms and slots and want both taken seriously.
Slot Boss
- The mirror image: Slots and nothing else, exactly as single-minded as 21.co.uk but focused on the opposite product.
- Same spins, higher price: Its 50 wager-free spins ask for a £20 deposit, double what LeoVegas and Pink Casino want for the same reward.
- Jackpots still connected: The shared Gigantic Jackpots pool runs across its games too, so the specialism costs nothing in prize money.
- No table in the house: No live casino section at all, which makes it the one sister site a 21.co.uk regular might find nothing to like at.
- Best for: Pure slots players who’d never click a live dealer tab anyway.
How this 21.co.uk review was made
The evidence behind every claim on this page, laid out for checking. My full approach is on the About Us page.
Rob Hill
Personally tested from a UK connection: the site’s pages and help articles for the product and money facts, the offer’s dedicated terms for the bonus mechanics, and the regulator’s records for the licence position. I compared all five 21.co.uk sister sites first-hand on the same day. Account opened, deposit made.
17 September 2026, on a Windows laptop using Google Chrome
LeoVegas Gaming PLC, registered office Level 7, The Plaza Business Centre, Bisazza Street, Sliema, Malta, named in the site’s footer and terms; a subsidiary of MGM Resorts International since 2022
39198
The 21.co.uk site: homepage, about, promotions, the welcome offer’s own page, the promotional terms, the general terms, the bingo and live casino sections and the support page; the help centre’s payment-methods and withdrawals articles; the Gambling Commission register for licence 39198, domains and actions tabs included; the live LeoVegas, BetMGM, BetUK, Pink Casino and Slot Boss sites; Trustpilot; google.co.uk results.
17 September 2026, first published version
The family’s card-table specialist
The name 21.co.uk is obviously a blackjack count, and the site takes it seriously. Live casino gets the first tab, the About page hails the site’s live roulette wing with more than 20 dedicated tables, and the menu runs through game shows, poker, baccarat and dice to an Exclusive Tables section and Live Gigantic Jackpots. The branding even extends to its own game: 21.co.uk Roulette, a French-style table that carries the site’s logo. Around the tables is a bigger casino than the specialism suggests, over 2,000 slots with a popular row led by Fluffy Favourites, Gold Cash Freespins, Starburst, Big Bass Splash, Lucky Lady’s Charm Deluxe and Fishin’ Frenzy The Big Catch, new releases from Blueprint, Thunderkick, Hacksaw Gaming, Octoplay and Play’n GO, a crash-and-mines corner, slingo, and a 21.co.uk Exclusives category of its own. The shared Gigantic Jackpots pool is the family’s headline act, currently standing at over £43 million, and the banner highlights something most casinos bury: the jackpot games’ 70% RTP, stated right in the small print.
There’s a weirdness about halfway down the 21.co.uk homepage: the category tabs lead with “Christmas Games” in the middle of September, which tells you how often anyone comes along to tidy the homepage. That theme of poor housekeeping runs through the whole casino: a promotions page whose browser title advertises a £6 bonus above a £5 offer, a support page whose title still sells a £50 deposit bonus the site doesn’t offer, and offer text with sentences like “to use on on any Live Casino game”. None of it changes how the site works, but poor attention to detail from an online casino is always something to be wary of.
Ownership, licensing and the family in the small print
UKGC Licensed, LeoVegas Gaming PLC (39198), click to verify
The paperwork here is about as clean as UK gambling gets. The footer names LeoVegas Gaming PLC of Sliema, Malta, with the licence number linked to the regulator, and the register’s domain tab lists eleven names, six of them active: 21.co.uk sits first alphabetically, ahead of betmgm.co.uk, betuk.com, leovegas.co.uk, pinkcasino.co.uk and slotboss.co.uk, with the retired leovegas.com among the five inactive rows. The general terms go further than most operators bother to and name the family outright: “Our current Brands include LeoVegas, BetMGM, BetUK, Pink Casino, Slot Boss, and 21.co.uk.” LeoVegas Gaming PLC has been a subsidiary of MGM Resorts International since September 2022, which is how a British web address ends up two steps from The Bellagio. The regulatory actions tab against the operator contains nothing today, but it hasn’t always been that way. The operator’s documented history, a £1.32 million penalty in 2022 for anti-money laundering and social responsibility failings and an earlier £600,000 advertising penalty, is covered in full on my LeoVegas page, and the audit conditions attached at the time have since been worked through.
People often make a common mistake with this brand, so I’ll try to stop you from making it: 21.co.uk is not 21 Casino. That similarly named brand trades at 21casino.com on White Hat Gaming’s entirely separate licence, with different terms, different offers and no connection to this family beyond the number. The two get muddled in searches constantly; “21 casino login” appears right beside this brand’s homepage in Google search results, so check the address bar reads 21.co.uk before you register an account. I’ve reviewed 21 Casino on this site too, just in case you’re interested.
Bonuses: a £5 chip stack, and a promotions page borrowed from a sister site
The welcome offer is the only live-casino-focused one in the family: opt in, deposit £10 or more within seven days of registering, wager that deposit once on any live casino games, and receive £5 in Golden Chips, paid as 50 chips of 10p each for use on eligible Playtech live tables. The dedicated terms are player-friendly in shape: the wagering is a 1x playthrough of your own deposit rather than a bonus treadmill, chips are staked individually, and your real money balance stays withdrawable at any time without forfeiting the reward. The catches are scale and timing: £5 is the lowest welcome bonus figure anywhere on this licence, against 50 wager-free spins at LeoVegas and Pink Casino and 200 spins at BetMGM, and the chips expire three days after they’re credited. Slots, slingo and instant wins are excluded from the qualifying wagering, so this is strictly an offer for people who actually intend to sit at the tables.
Beyond the welcome offer, the cupboard is strikingly bare. The promotions page counts one available promotion and three ongoing, and of those three, one is the welcome offer listed again, one is an article explaining what RTP means, and the last is the shared Gigantic Jackpots network, whose tile carries the message: “Discover the Mini, Minor, Major and Mega Jackpots on hundreds of top games at Slot Boss!” That’s a sister site’s name, reproduced on 21.co.uk’s own promotions page, in copy nobody re-read after copy-and-pasting it across the family. The offer terms have their own proofreading wobbles, like “The Golden Chips hey can be used”, so read everything twice to be sure of the intended meaning. For a brand this focused, the promotional effort is oddly minimal: one little chip stack at the door, then the tables are left to speak for themselves.
Payments: confirmed limits, no fees, and no Mastercard
The help centre presents the casino’s banking rules as a table, which makes it easy to digest. Deposits: Visa Debit and Visa Electron from £10 to £3,000, bank transfer £10 to £10,000, PayPal £10 to £3,000 and Apple Pay £10 to £1,000. Withdrawals: Visa £10 to £8,000, bank transfer £10 to £35,000, PayPal £10 to £4,000 and Apple Pay £10 to £8,000, with anything under £10 handled manually by support on request. There are no withdrawal fees, transfers land one to three business days after approval, money goes back by the method it came in on, and a requested withdrawal can’t be reversed, a good safer gambling feature the family runs across all six brands. Statements read “21.co.uk” or “LeoVegas PLC”. Revolut isn’t accepted, and two missing methods are worth noting: Google Pay, which LeoVegas accepts but 21.co.uk doesn’t, and Mastercard, which appears as a logo in the site’s footer but has no entry on the payments table.
The governing terms fill in the rest. Customer funds are held separately from business accounts, and the terms state the arrangement meets the Gambling Commission’s segregation requirements at the medium protection level. Dormancy is patient: an account only becomes dormant after 365 days without a login. The operator says it will try to notify you if more than £1 remains, and only then does a £5 monthly administration fee begin, stopping the moment you withdraw or log back in.
Support and complaints
Support runs through a stacked help centre, live chat behind the Help button, and a brand-specific email, support@21.co.uk, a small courtesy several big operators have dropped. No customer support phone number is given. Complaints follow the help centre’s procedure first, and the terms then name IBAS, the Independent Betting Adjudication Service, with its full postal address, email and phone number printed, as thorough an ADR disclosure as you’ll find. GAMSTOP applies, and self-exclusion at one family brand carries across all six. The seams show even here, though: articles on 21.co.uk’s own help centre carry titles like “I am under 18 years old, Can I play at LeoVegas”, the flagship’s name left in place when the pages were copied out. And one footer logo has aged out from under the site: GambleAware’s logo still appears in the responsible gambling strip, but the charity ceased operating in March 2026.
21.co.uk Casino’s reputation
This is a rare thing for me to see: a casino brand with a long-standing, claimed, answered review record. The Trustpilot profile for 21.co.uk has been claimed since May 2015 and holds 1,430 reviews scoring 2.2, with an odd split: 49% five-star against 21% one-star, an old bank of happy reviews pulled down by a recent slew of complaints. The recurring complaint is verification friction at withdrawal: a May 2026 reviewer described an account limited the moment a withdrawal was requested, documents submitted, and thirty days of “in due course” before anything turned up. Another reviewer described ID requests arriving one at a time over days rather than as a single list. The happy reviews deserve their place too, including a new player paid out just under £3,000 from £50 with the chat agent talking them through the process. The operator replies to complaints, which counts for something, but does so with the wrong sign-off: its reply to that May 2026 withdrawal complaint ends with “Regards, The BetMGM Team”, a sister site’s name at the bottom of an apology, which the complainant duly pointed out. On the practical side, though, the payout machinery works, verification can be slow and piecemeal once flags go up, and the support desk answering for six brands sometimes forgets which one it’s working for. Deposit small sums until your account is verified end to end.
What I like, and what I don’t
What I like
- A welcome offer with 1x qualifying wagering and a cash balance you can withdraw at any time without losing the reward.
- Customer funds at the medium protection level, stated verbatim in the terms.
- Fee-free banking with per-method limits published as a table, and withdrawals that can’t be reversed once requested.
- IBAS named as the dispute route with its address, email and phone number printed in full.
What I don’t
- The family’s smallest welcome offer, £5 in chips with a three-day life, beside sister sites paying 50 to 200 spins.
- A promotions page that amounts to one offer, a repeat of that offer, an explainer article, and an entry written for Slot Boss.
- Crossed wires everywhere: help articles answering as LeoVegas, a complaint reply signed by BetMGM, titles selling offers that no longer exist.
- A 2.2 Trustpilot review score whose recent file centres on slow, piecemeal verification at withdrawal time.
My 21.co.uk sister sites verdict: a good framework that needs some polish
As a product, 21.co.uk earns its specialism: the best live roulette menu in the family short of BetMGM’s Vegas streams, its own branded table, exclusive games, a £43 million shared jackpot, and plumbing (medium-protected funds, fee-free published limits, IBAS printed in full) that most casinos should envy. If it were a shop, though, I’d say it looks understaffed. The welcome offer stops at a £5 chip stack, the promotions page recycles a sister site’s copy, some pages advertise dead promotions, and even an apology to an unhappy customer went out under another brand’s name. None of that changes how the site works, though the verification friction described in the recent reviews might test your patience, so verify early and deposit small amounts until you’ve cashed out once.
Within the family, BetMGM is the natural next stop for live casino fans and adds the sportsbook; LeoVegas remains the best all-rounder with its wager-free spins, and Slot Boss and Pink Casino serve the slots-first players 21.co.uk was never intended for anyway. You can find the full network picture on my LeoVegas page.
21.co.uk sister sites FAQ: your questions answered
What are 21.co.uk’s sister sites?
LeoVegas, BetMGM, BetUK, Pink Casino and Slot Boss, the five brands that share Gambling Commission licence 39198 with it under LeoVegas Gaming PLC. The operator’s own terms name all six together, and the shared Gigantic Jackpots pool and self-exclusion run across the whole family.
Who owns 21.co.uk?
LeoVegas Gaming PLC, a Maltese company holding Gambling Commission account 39198; MGM Resorts International bought the operator in September 2022. The footer names the operator and links the licence number to the register.
What welcome offer does 21.co.uk have?
Deposit £10 or more within seven days of registering and wager it once on live casino games to receive £5 in Golden Chips, 50 of them at 10p apiece, for eligible Playtech live tables, with a three-day expiry. Your own balance stays withdrawable throughout.
Is 21.co.uk the same as 21 Casino?
No. 21 Casino at 21casino.com belongs to White Hat Gaming’s separate licence and has no connection to this family. If you mean the LeoVegas Gaming brand, make sure the address bar reads 21.co.uk before you log in.
Is 21.co.uk safe and trustworthy?
It’s fully UK-licensed with customer funds at the medium protection level, fee-free published banking and IBAS as the named dispute service. Weigh that against a 2.2 Trustpilot score whose recent reviews centre on slow verification at withdrawal, and the operator’s documented 2022 penalties, since resolved, on its own record.