Licence file – checked August 2026
The Eaton Gate brands on the British register are kwiff, GRP Casino and SlotsKing, and all three run on one company, Eaton Gate Gaming Limited of London, holding UKGC account 44448. The licence lists seven web addresses and one brand name. Two things about it are worth your time. Two of those seven addresses are not websites at all, they are app store pages. And the Commission page that lists fines against this account says there have been none, while a different Commission page records a fine of £480,305 against the very same company.
Company record
Everything below comes from the Gambling Commission public register and from opening each address in turn on 12 August 2026.
| Field | What account 44448 holds |
|---|---|
| Licensee | Eaton Gate Gaming Limited |
| Registered office | 10 Barley Mow Passage, Barley Mow Centre, London W4 |
| Account number | 44448 |
| Licence number | 044448-R-323408-017, which is not the same string as the account number |
| Trading names | One, recorded as kwiff |
| Domain names | Seven, every one of them Active |
| Premises | None, and a remote licence does not provide for any |
| Regulatory actions counter | Reads nought, which is contradicted elsewhere on the register |
The trading-name column is the first oddity. Most operators of this size file a name for each brand they run. Eaton Gate files one, kwiff, and neither GRP Casino nor SlotsKing appears there at all. Both are perfectly legitimate: they sit on the file as domain names rather than as trading names, which is a different column doing a different job.
Seven addresses on the licence, and what each one opens
Active on this list means the company is allowed to use that web address. Whether a working site sits behind it is another matter entirely. We opened all seven on 12 August 2026 to find out.
| Address on the file | What it did when we opened it |
|---|---|
| kwiff.com | Opens the kwiff sportsbook, with a casino attached |
| grpcasino.com | Opens GRP Casino under its own name, casino only |
| slotsking.com | Opens SlotsKing under its own name, casino only |
| kwiffcasino.com | Forwards to casino.kwiff.com, which is a different address again |
| kwiff.co.uk | Nothing loads at all. The browser just says it cannot find the site |
| An Apple App Store listing | Not a website. A store page for the kwiff app |
| A Google Play listing | Not a website. A store page for the kwiff app |
So the real count is three websites you can play on, one address that bounces you elsewhere, one that does not exist, and two app store pages. If you have seen this operator described as having seven addresses, that is where the number comes from. It makes the business look about twice the size it is.
One address does not exist at all
kwiff.co.uk is worth pausing on. When a website closes down, the address usually still works: you type it in, a computer answers, and you get a page saying the site has gone. That is not what happens here. The browser cannot find the address in the first place, which means nothing has been set up there, or whatever was there has been removed.
It is still marked Active on the licence, and there is nothing wrong with that. Companies tell the Commission which addresses they intend to use, and it goes on the file without anyone checking whether each one works. The lesson is that these seven rows are not seven websites, so counting them will not tell you how big an operator really is.
Two of the seven are app stores
The register calls this column domain names, and five of the seven entries are what you would expect. The other two are deep links into the Apple App Store and Google Play, each pointing at the kwiff betting app.
That is fair enough on the operator side. You can gamble in the app, so the Commission wants it declared. It is less fair when a sister-site guide counts those two entries as two more casinos, which is part of why this operator looks bigger on paper than it is.
The sanction the account page does not show
This is the most important thing on the page, and finding it needed two different parts of the same regulator website.
There is a page on the Commission website listing every fine or penalty handed to this account. It says there have been none. The counter on the summary page says nought too. Read only those and you would report that this company has never been in trouble, which is what several guides have done.
The Commission also keeps a completely separate list of every company it has taken action against. Eaton Gate Gaming Limited is on that list.
| Item | What the sanction record says |
|---|---|
| Date | 8 December 2022 |
| Action | An operating licence review, ending in a warning, added conditions and a financial penalty |
| Penalty | £480,305 |
| Breaches found | Paragraphs 1, 2 and 3 of licence condition 12.1.1, which covers anti-money-laundering; social responsibility code 3.4.1, which covers customer interaction; and code 5.1.9 |
| Warning | A warning under the Gambling Act 2005, section 117(1)(a) |
| Added condition | A third-party audit within twelve months, examining whether the licensee is effectively implementing its anti-money-laundering and social-responsibility measures, with the report going to the Commission within five working days |
So two pages on the same regulator website say opposite things, and the one with the detail on it is not the one most people will find. We are not going to guess why that is. What we can report is the record itself: a fine just under half a million pounds, a formal warning, and a year of being audited by an outsider to prove the problems had been fixed.
The lesson for anyone checking an operator is short. A page reporting no action is not proof that no action was taken. It tells you what that single page displayed on the day you read it, and nothing beyond that.
What the four permissions cover, and what they do not
All four permissions sit on one licence number, 044448-R-323408-017, and their start dates read as a timeline of what the business decided to become.
| Permission | Active from | What it allows |
|---|---|---|
| Gambling Software, remote | 8 March 2016 | Supplying the software that runs the games |
| General Betting Standard, real event, remote | 8 March 2016 | Taking bets on real sport |
| Casino, remote | 1 December 2016 | Slots, tables and live dealer |
| General Betting Standard, virtual event, remote | 2 February 2023 | Taking bets on simulated events |
Put in order, those dates tell you the company started as a bookmaker, opened a casino nine months later, and added betting on simulated events six years after that. They also explain why the three sites feel so unalike. Kwiff uses the betting permissions and the casino one. GRP Casino and SlotsKing only have the casino one, which is why you cannot bet on football at either of them.
No premises permission appears anywhere on the account, and none is available on a remote licence of this kind. Nothing filed here may lawfully open a shop.
One company, three storefronts, one footer
Open kwiff, GRP Casino and SlotsKing and you get three different products. Read the small print at the bottom and you get one sentence, repeated word for word.
All three name Kwiff Limited, based in Msida in Malta, as the operator, describe it as a subsidiary owned outright by Eaton Gate Gaming Limited, and state that Eaton Gate is licensed in Great Britain under account number 44448. All three then add the same unusual clause: the licence names Kwiff Ltd as agent and authorises it to provide gambling facilities by way of an umbrella licence held by its parent.
Most sites do not explain their ownership in that much detail, so credit where it is due. In plain terms: the company running the site is Kwiff Limited, and the company answerable to the British regulator is Eaton Gate Gaming. They are not the same company, and the site says so itself.
A third company name appears in the copyright line, and it is neither of the other two. GRP Casino and SlotsKing both end with a copyright notice for Spryme Limited. On SlotsKing that notice starts in 2015, which is earlier than you would expect given it is the newest address on the licence. None of this is on the register, which names one licensed company and one brand name, and does not mention Spryme at all.
| Brand | What it offers | Detail from the read on 12 August 2026 |
|---|---|---|
| kwiff | Sportsbook plus casino | A betting menu running from football and horses through to GAA hurling and Aussie rules, built around a supercharged-odds mechanic. The casino sits on a separate address, casino.kwiff.com |
| GRP Casino | Casino only | Claims more than four thousand games on the front page, and carries two jackpot meters on the lobby |
| SlotsKing | Casino only | Lands you straight into a games lobby with no separate homepage, and shows no jackpot meter where GRP shows two |
A word about those jackpot meters, which applies to every casino and not just this one. Both numbers on the GRP page changed between two readings we took seconds apart. Any exact jackpot amount you see quoted anywhere was already out of date by the time it was published. The useful bit is not the number, it is that GRP shows these meters and SlotsKing does not, even though the two sites are otherwise built from the same template.
Names that look related and are not
Before saying a brand belongs to an operator, it is worth searching the register more than one way. The search matches on parts of a name as well as whole names, which throws up results that have nothing to do with what you are looking for.
Searching the business register for kwiff returns exactly one account, 44448, trading as kwiff. There is no second filing, no half-completed move to another licensee, and nothing else on the British register using the name.
Searching for Eaton returns three results, and only one of them is this company. The other two are a Hartlepool amusements business whose name happens to contain the letters, and a borough council that licenses gambling in its own area. Neither has anything to do with Eaton Gate Gaming, and both would be picked up by a lazy search.
This matters because sister-site lists are often built by typing a name into the register and writing down whatever appears. Here that happens to give the right answer. On other operators it does not, and the extra check takes about a minute.
What is not on this file
What a licence leaves out can matter as much as what it includes. Three things are missing here and all three are worth knowing.
There is no premises permission, so nothing on this account may open a shop or a venue. There is no bingo permission and no lottery permission, so any lottery-style game you meet on these sites is running under the casino permission rather than a separate one. And there is no second licensee anywhere in the picture: unlike the white-label estates, where the name over the door belongs to a partner company and the licensed party is somebody else entirely, Eaton Gate holds its own licence and runs its own brands.
Spryme Limited, the name in the copyright line on two of the three sites, does not appear on the register in connection with this account at all. That is not unusual in itself, since whoever owns a copyright does not have to hold the gambling licence. It does mean at least three companies are involved in running these sites while only one of them is licensed.
Change log
| Date | What changed |
|---|---|
| 12 August 2026 | File opened and all seven addresses walked. Recorded the December 2022 sanction of £480,305, which the account regulatory actions page does not show. Recorded kwiff.co.uk as not resolving, and the two app store listings among the seven domain rows. Recorded the corporate site carrying the terms as returning a server error on every path tested. |
The terms link that leads nowhere
Every licensed site has to publish its terms, and on the kwiff casino the link to them sits in the footer where you would expect it. Follow it and you leave the casino entirely: it points at corporate.kwiff.com, a separate address that is not on the licence file.
On 12 August 2026 that address returned a WordPress crash page. Not a missing-page message, but the server error a site gives when the software behind it has fallen over.
A broken link on its own is worth nothing, because it could be the operator, the host, the network or simply a bad five minutes. So we ran the checks that turn it into something you can rely on.
| Check | Result |
|---|---|
| Read it twice, minutes apart | The same crash page both times |
| Ask for a page that cannot exist | An invented address on the same domain returned the identical crash page, byte for byte |
| Ask for the front page | Also the crash page |
| Ask for the neighbours | The privacy policy and the responsible gambling page both returned it too |
Those answers all point the same way. This was not one missing document. The entire website was down, and with it the terms, the privacy policy and the responsible gambling page that the casinos link to.
This is what we found on one day, and it may well be working again by the time you read this. That is why we have set out exactly how we tested it rather than just telling you it was broken. If you are opening an account, click the terms link before you put money in and see what happens.
What this means if you are choosing between the three
There is less to choose between them than the branding suggests. One company is answerable, one licence covers all three, and the same operator sentence appears at the foot of each site. Your account, your balance and your verification are separate on each one, because the register treats them as one licensed business but the sites treat you as a new customer each time.
What actually differs is product. kwiff alone takes a sports bet, and it alone uses the betting permissions on the licence. GRP Casino and SlotsKing are casino-only, and between those two the visible differences are the game count GRP advertises and the jackpot meters GRP runs on its lobby.
What you should carry across all three is the December 2022 sanction. It concerned anti-money-laundering controls and how the operator interacted with customers, and it came with an audit condition rather than a fine alone. That is the kind of finding that belongs in your decision, and it is not on the page most people will look at.
Check it on the register yourself
None of this needs taking on trust. The Gambling Commission publishes all of it and the pages are free to read.
- The licence summary for account 44448 gives the company, the address, the counters and the permission list.
- The domain names page lists all seven addresses with their status column.
- The trading names page lists the single entry.
- The regulatory actions page for the account is the one that reads as empty.
- The separate register of regulatory actions is where the December 2022 sanction sits, with the full decision behind it.
If those last two ever agree with each other, this page will be updated to say so.
Eaton Gate entries in this register
Two of the three brands have a page of their own here. Kwiff covers the sportsbook and the supercharged-odds mechanic. GRP Casino covers the casino-only storefront and where its address leads. SlotsKing is the newest name on the account and does not have an entry yet.