Cosmo Sister Sites

Short version: yes, Cosmo Casino has a confirmed sister and sits inside a much larger family of casinos. It is run by Rock Swift Group Limited and it is an offshore operation, licensed through the Kahnawà:ke Gaming Commission in Canada rather than by the UK Gambling Commission. It does take UK players, but it does so from outside the UK system, and that distinction is the whole point of this page.

Who actually runs Cosmo Casino

Cosmo Casino trades at cosmocasino.com and is a member of the Casino Rewards programme, the long-running Microgaming loyalty network behind names such as Zodiac, Grand Mondial and Captain Cooks. Its own terms name the operating company as Rock Swift Group Limited, a business its terms give a British Virgin Islands address.

That name is not just a claim on the brand's own website. The Kahnawà:ke Gaming Commission's public list of permit holders records Rock Swift Group Limited as the operator of two live sites: cosmocasino.com and casinokingdom.eu. Two independent sources, the brand's terms and the regulator's own register, agree on who is behind it. That is the level of proof we want before telling you anything about ownership.

One quick clearing-up, because search results muddle it: this Cosmo is not “Cosmo Gaming Company Limited”, the separate firm that runs NetBet and does hold a UK licence. Same first word, different company. Affiliate pages routinely mix the two up, which is exactly how the wrong licence details get pinned to the wrong brand.

What we could and couldn't verify about its licence

Here is the honest state of it. We can confirm the operator (Rock Swift Group Limited) and the regulator (Kahnawà:ke), because both appear on the commission's own register. We could not find a publicly verifiable licence number to print. The register lists the company and its domains but does not publish an individual licence number there, and we will not copy a number off another affiliate page and pass it off as checked. If you want the current authorisation, confirm it on the operator's own site and with the Kahnawà:ke Gaming Commission, not here.

What we can say plainly is that Cosmo Casino does not hold a UK Gambling Commission licence. Searching the UK public register for the brand and its domain returns nothing for it. Any UK-facing licence number you have seen quoted for “Cosmo” almost certainly belongs to a different company.

The sister we can prove, and the network around it

By the strict test — the same operating company, confirmed on a regulator's register — Cosmo Casino has one verified sister:

The wider picture is the Casino Rewards programme. Its own site currently lists around sixteen member casinos, among them Grand Mondial, Zodiac, Luxury, Captain Cooks, Golden Tiger, Yukon Gold, Casino Classic, Quatro, Villento, Blackjack Ballroom, Casino Action, Grand Hotel, Players Palace and UK Casino Club, alongside Casino Kingdom and Cosmo itself (casinorewards.com). They share a loyalty scheme, a VIP points balance and the same game platform, so in the everyday sense they are relatives.

But sharing a loyalty programme is not the same as sharing an operating company, and we are not going to pretend it is. We could only verify that Rock Swift Group Limited runs Cosmo and Casino Kingdom. The other network members may sit under different licensees, and we have not confirmed each one on a register, so we are not listing them as same-owner sisters. If that sounds pedantic, it is the exact difference between a self-exclusion that reaches a brand and one that does not.

What being offshore means for you as a UK player

This part matters more than any bonus. Because Cosmo is not UK-licensed, the protections you would get at a UK site simply are not there.

• No UK complaints or dispute route. If something goes wrong, you cannot escalate to the UK Gambling Commission or to a UK alternative-dispute-resolution provider. Your only recourse is the offshore regulator's own process, which is slower and far less familiar to a UK consumer.
• Your money sits outside UK rules. UK operators must meet Gambling Commission standards on how customer funds are held and disclosed. An offshore operator is under no such duty to you, so if the business fails there is no UK safety net.
• It sits outside the national online self-exclusion scheme. If you have self-excluded from UK-licensed gambling, that does not block Cosmo or any other offshore site. This is a warning, not a selling point: a scheme you are relying on to stop will not stop this.
• Deposit limits are per account. A limit you set at Cosmo does not travel to Casino Kingdom or to any network sibling, and it is enforced under the operator's rules rather than the UK's. Set one at every brand you open and do not assume it carries across.
• Offshore bonus terms tend to be heavier. The headline sign-up deal — a small deposit for a batch of chances at a progressive jackpot — comes with wagering requirements, maximum-bet-while-bonus rules and caps on how much of a bonus win you can actually withdraw. Read the current terms in full before the number tempts you; the headline is not the deal.

Our verdict

Cosmo Casino is a real, established brand with a genuine operator and a large network behind it, and it is upfront in its own terms about being an offshore, Kahnawà:ke-licensed site. None of that changes the core trade-off. For a UK player, a UK Gambling Commission-licensed casino is the safer choice, because it gives you a complaints route, independent dispute resolution, rules on how your money is held and cover from the national self-exclusion scheme — every one of which you give up here.

If you still choose to play at an offshore site, go in knowing what it is: not UK-regulated, outside the schemes designed to protect you, and governed by terms you should read for yourself rather than take from a page like this. Confirm the operator on the Kahnawà:ke register, and confirm anything about your own account in Cosmo's current terms.

18+. Please gamble responsibly. Free, confidential support is available in Great Britain from GamCare on the National Gambling Helpline, 0808 8020 133. To block UK-licensed gambling sites you can use the national online self-exclusion scheme, but be aware it does not cover offshore operators like this one.