Sister Sites – Find Related Casinos and Betting Sites in the UK in 2026
For most casino fans, playing at the same online casino day after day can get repetitive fast. But that doesn’t necessarily mean you have to find and vet an entirely new one.
Sister sites give you a new yet familiar experience. These are online casinos operated by the same companies, so they share multiple similarities while still offering a fresh batch of games, hefty welcome deals, and the same payment methods you’re already used to.
Below are the top casino sister sites, including both the best new online platforms and well-established websites run by massive networks. Feel free to dive right in and find an online casino or sportsbook that has everything you need.
What Are Sister Sites?
In the context of iGaming, sister sites are online casinos and sports betting platforms that operate under the same parent company and share other similarities. That can include everything from sports betting markets and casino games from the same set of software providers to banking options and welcome packages, free spins, and other bonuses.
These platforms often share licensing, as well. For most UK-focused sister sites, this often means that websites in the same network are licensed by the UK Gambling Commission (UKGC). That said, offshore networks that operate in the UK under equivalent licences also add a layer of familiarity and trust.
How Do Sister Casino Sites Work?
While they’re built on the same back-end systems and operate under the same umbrella organisation, sister casinos don’t necessarily mean identical websites. Yes, many of them will have similar-looking interfaces and navigation, but most sister sites actually target different player segments.
In most cases, that means having different casino games, even if the software providers are largely the same. For example, one sister site might focus heavily on online slots, while others cater primarily to bingo players or live table fans.
Why Use Sister Sites?
Playing at sister sites offers numerous advantages for casino fans and sports bettors. For starters, you can access a variety of promotions. More importantly, you also get to enjoy playing in a safe gaming environment that you’re already familiar with.
But that’s just the tip of the iceberg, so let’s explore exactly what UK casino players get with sister sites:
Familiar Platform Experience
Most networks with multiple sister sites reuse both the back-end systems and the front-end looks. For you, this means familiar layouts and menus, which makes it a breeze to navigate casinos owned by the same operator.
This also simplifies moving to new casinos. You can rely on your existing knowledge of the platform you started with without having to guess where anything is or how to track bonus wagering requirements.
Proven Security Through a UKGC Licence
Say you’re a fan of both jackpot games and bingo, but the online casino you’ve just vetted and joined focuses heavily on slot games. With online casino sister sites, there’s nothing to worry about here, and you should feel free to claim a slot-focused casino bonus and enjoy everything the particular casino offers.
And when you’re ready to dive into some bingo casino action, you can explore trusted UK casino sister sites within the same network and join a bingo-focused platform. This way, you can just focus on your favourite bingo games and not worry about vetting the new online casino, as you’ll be dealing with the same robust security framework.
Variety of Choice Within Trusted Networks
Even with hundreds of options in many of the best online casino libraries, playing the same games on one particular platform can sometimes feel a bit repetitive.
However, when you join a trusted network of sister sites, you gain access to a much broader set of titles. These platforms also cater to different moods and preferences, so you can easily switch from a classic Las Vegas-style website to a British-themed pub casino.
Multiple Casino Welcome Bonus Offers
If you’re playing at an independent British casino, you can get a decent first deposit bonus, complete the bonus terms, potentially withdraw some profit, and that’s it. The rest of the promotions are rarely as good as the welcome offer, so you’re not exactly getting the most out of your money.
But with the best casino sister sites at your disposal, it’s a whole different story. Say you get a 150% welcome bonus with 100 free spins with the same minimum deposit of £20 as a new player. You can complete the wagering requirements, move your verified wallet to another brand within the network, and claim yet another hefty casino welcome offer.
Similar Payment Methods
Speaking of verified wallets, sister sites typically offer the same payment methods across the entire network. So, if you’ve found an online casino with a set of options that suit your needs, its UK sister site will offer the same banking experience.
This means you can easily deposit and withdraw your funds using options you’re already familiar with, such as PayPal, for example. Such a setup offers immense convenience and lets you skip the whole juggling between payment accounts or apps.
Deposit limits and withdrawal times tend to be similar, as well. This consistency means you never have to worry about unexpected hold-ups or hidden fees. You can also rely on the exact same deposit and payout steps.
Top Online Casino Sister Sites in the UK
Finding the right sister site starts with looking at the network behind the brand, and that’s precisely what we did here. Below is a list of the most popular sister networks that serve players in the UK:
Santeda International B.V.
The Santeda group is one of the largest offshore sister site networks available to players in the UK. There are several well-known casino brands that operate within this group and share similar-looking interfaces, payment methods, and bonus types, including MyStake, Cosmobet, Rolleto, VeloBet, and Goldenbet.
| Network | Casinos | Licence | Bonuses | Key Features |
| Santeda International B.V. | MyStake, Cosmobet, Rolletto, VeloBet, Goldenbet | Curacao | 150%-400% welcome deal up to £1,500 + 100-1,000 free spins; Reload offers; Dedicated crypto deposit bonuses | Thousands of slots, table games, and live dealer tables; Dedicated sportsbook sections and live betting; Crypto-friendly payments; Fast KYC process |
Novatech Solutions N.V.
Novatech Solutions N.V. is one of the leading online casino groups operating under Curacao law. The group provides offshore games of chance and wagering services internationally, including in the UK. Meanwhile, its sites, which include Qbet and 30Bet, take a mobile-first approach and focus on instant-play titles.
| Network | Casinos | Licence | Bonuses | Key Features |
| Novatech Solutions N.V. | QBet, 30Bet | Curacao | 100% welcome deal up to £500 + 150 free spins; Cashback deals | Sleek, mobile-first website user interfaces; eSports titles; Instant withdrawals |
Ryker B.V.
Although smaller than both the Santeda and Novatech networks, Ryker B.V. is another popular operator and is behind brands such as CasinOK. Its sites typically take a cryptocurrency-first approach, ensuring near-instant deposits and fast withdrawals.
| Network | Casinos | Licence | Bonuses | Key Features |
| Ryker B.V. | CasinOK | Curacao | 300% welcome offer up to £4,500 + 777 free spins; 10% daily cashback on net losses | Crypto-exclusive gambling platforms; Fast blockchain-first withdrawals; 7,000+ games; 80+ software providers |
Plexian Network B.V.
Plexian Network B.V., which is behind casinos like Betswagger, also stands out for its adult-themed games. Home to hundreds of slots, jackpots, table games, and live dealer tables, this operator also offers a full sportsbook, effectively catering to players of all kinds.
| Network | Casinos | Licence | Bonuses | Key Features |
| Plexian Network B.V. | Betswagger | Curacao | 100% welcome package up to £5,000 and 100 free spins; Monday and Friday reloads; Live casino bonus | Mobile-first casino platforms; Massive range of payment methods; Adult-themed slots |
International Features Ltd.
While it’s not a part of a sister network per se, International Features Ltd.’s GQbet is one of the favourites of UK-based players looking for non-UKGC sites. The platform holds a Belize licence and offers a comprehensive collection of releases, including slots, table games, and a live casino section.
| Network | Casinos | Licence | Bonuses | Key Features |
| International Features Ltd. | GQbet | Belize | 100% deposit match bonus up to £500 and 100 free spins; 100% live casino deposit match bonus up to £300; 6% daily cashback; 20% daily rakeback | 4,000+ games; Minimum deposit of just £10; Wide range of banking options |
Top Betting Sister Sites
If you ever get tired of the casino floor, most of the mentioned operators also run full sportsbook platforms. This makes it easy to switch from spinning the reels to checking the latest Premier League odds.
Beyond football, you can also bet on other UK-favourite sports such as horse racing, tennis, cricket, and boxing on almost any of these websites. Here’s what you can find on which platform:
| Operator | Platforms with Sportsbooks | Sports Markets |
| Santeda International B.V. | MyStake, Cosmobet, Rolletto, VeloBet, Goldenbet | Football, Basketball, Tennis, Baseball, Formula 1, Boxing, MMA, Table tennis, and 30+ other sports |
| Novatech Solutions N.V. | QBet, 30Bet | Football, Tennis, Rugby, Cricket, Waterpolo, Boxing, and 25+ other sports |
| Ryker B.V. | CasinOK | Football, Tennis, Formula 1, Boxing, MMA, Golf, Darts, and 30+ other sports |
| Plexian Network B.V. | Betswagger | Horse racing, Football, Basketball, Tennis, Greyhounds, Cricket, Boxing, Darts, and 35+ other sports |
Sister Sites Not on GamStop
Despite serving players in the UK, British-focused sister sites often operate under offshore licences rather than a UKGC one. In fact, most of the mentioned network-run sites share a Curacao licence, so they’re not part of the GamStop self-exclusion scheme that you’ll often find on UKGC-regulated platforms.
While their regulatory protections differ from those applied to British operators, these websites are just as secure. They also provide a more flexible gaming environment and frequently offer larger bonuses, making them the go-to option for UK-based players seeking alternatives to the often restrictive UKGC platforms.
How We Select the Top UK Sister Casino Sites
Choosing casino brands isn’t always the most straightforward process. To help you navigate the often complex landscape of gambling networks, we use a battle-tested system to separate the best casino sister sites from the rest. Here’s what we focus on:
Licensing and Regulation
When evaluating casinos in the UK, we always start with credibility. Every sister site featured here has to have a valid licence issued by the UK Gambling Commission or other reputable gambling authority.
This ensures that all featured websites operate legally within the UK. Moreover, it verifies that these casino and sportsbook brands adhere to strict rules on age and identity verification, financial compliance, and responsible gambling.
Ownership Structure and Reputation
Next, we examine the networks behind sister sites. Despite potential differences in interfaces, game libraries, promotions, and marketing, all sister sites have to be owned by a group to qualify.
The network’s standing within the community also plays a key role during our evaluation. With that in mind, we review verified user experiences, paying close attention to recurring complaints and the provider’s dispute-handling policies.
Security Features and Responsible Gambling Tools
Player safety is something we take very seriously. To make the cut, casinos must protect their users’ personal data and financial information at all times. That’s why we assess whether the platform’s encryption standards are up to the task.
Sister sites must also pass additional safety tests before being recommended. Here, we check each platform’s tools, like deposit limits and self-exclusion, to make sure they’re working as intended, even though most of them are shared across dozens of online casinos within the network.
Game Variety and Software Providers
Gaming libraries are a crucial part of any casino experience, so we assess these, as well. We first look at the number of slots, jackpot options, table games, and live casino titles available across multiple sites within the same network.
Before recommending any platform for you to play on, we also examine its game quality. Here, most sister sites collaborate with leading providers like Pragmatic Play, Evolution, NetEnt, and Hacksaw Gaming, but we also review how each integrates releases from these developers and how stable the games are across sites.
Welcome Bonuses and Ongoing Promotions
Despite being part of the same network, sister sites offer different welcome packages. We look into each of these deals, evaluating bonus terms to gauge their real value.
In addition to incentives for new players, we assess reload offers, deposit match deals, and other promotions for returning users. We pay attention to wagering requirements and runtimes to ensure UK players are met with fair conditions.
Payment Methods and Transaction Speeds
Lastly, we look into the platform’s banking options. While most payment methods are similar across sister sites, how long a particular casino takes to process a transaction also matters.
In that sense, we assess deposit and payout speeds, transaction limits, and verification processes, checking whether these factors remain consistent across the fold.
Frequently Asked Questions
What are sister sites?
Sister sites are online casinos and sports betting platforms that operate under the same parent company. They share similarities like licensing, payment methods, software providers, and bonus structures, while still offering different game libraries and promotions.
How do sister casino sites work?
Sister casinos are built on the same back-end systems and operate under the same umbrella organisation. However, they target different player segments – one might focus on slots, another on bingo, and another on live table games.
Why should I use sister sites?
Sister sites let you enjoy a familiar platform experience, proven security, variety of games across trusted networks, multiple welcome bonus offers, and similar payment methods – all without having to vet an entirely new casino.
Are sister sites not on GamStop safe?
Yes. While they operate under offshore licences (such as Curacao) rather than a UKGC one, these sites use the same encryption and security standards. They also tend to offer larger bonuses and a more flexible gaming environment.
Can I claim multiple welcome bonuses across sister sites?
Yes. Since each sister site is a separate brand, you can register and claim a welcome bonus at each one individually, even though they’re operated by the same parent company.
Do sister sites share the same payment methods?
In most cases, yes. Sister sites within the same network typically offer the same banking options, deposit limits, and withdrawal processing times, so you can use the same payment method across all of them.
