FitzBet is owned by Fitzwilliam Sports and powered by EveryMatrix. This means sister sites include BetGoodwin, BetTom, Ken Howells, 36Vegas, and Bet600.

While FitzBet's ownership is independent, namely Fitzwilliam Sports, the bookie has sister sites through the platform provider EveryMatrix. In fact, the likes of BetTom, BetGoodwin and Ken Howells all use this platform, along with a few others. You can clearly see the similarities between these sites, which subsequently makes them good sisters.
As for the background of FitzBet, the owner initially targeted high-stakes punters with a membership app, i.e. Fitzwilliam Sports. The move into the general public, so to speak, is only logical and means FitzBet will be able to grow the brand a lot. The start has definitely been strong as you can already see the intentions with a very nice design.
Below, we have picked out three of FitzBet's sister sites, more specifically the ones we think you should consider joining first.
If we want to go down the exclusive or high-end route, BetGoodwin has been known to host some prominent horse racing punters over the years. It was the first major brand to move over to the EveryMatrix platform and the site has improved massively since, going from a rather niche option to one that can challenge many.

The sports and horse racing coverage is very good, as you would expect, and there are even some useful promotions for existing customers. The big change with EveryMatrix, however, is that BetGoodwin now offers a good casino section too. It might not be a huge focus of the site, but at least you have a decent option if you need it.
36Vegas is another new EveryMatrix brand, launched in the second half of 2025, and there are similarities with FitzBet in the sense that the initial approach has been strong. The welcome offers (at least at the time of writing) have played a big part in that, but good branding can also be included - just like FitzBet.

The sportsbook offers most of what you would like, with many different sports and decent market depth for each, but there could be a few more promotions. The casino is decent but depending on where 36Vegas wants to position itself (is it primarily a betting or a casino brand?), there might have to be some improvements down the line.
BetTom is last on the list, but not necessarily because of the quality. Sure, the design leaves a bit to be desired, but the foundation is actually very solid. The site was launched in the spring of 2025 and is led by a notable individual in the industry, having previously worked for the aforementioned BetGoodwin. That's a good sign.

The one thing that makes it stand out a bit from the others is the 'Virtuals' section, which to us shows that BetTom is aiming to be an all-in-one bookmaker despite its name. There is also an app to download for both iOS and Android (like most of its sisters), so while nothing spectacular, it's a very decent side indeed.

I'm the founder and editor-in-chief of FindSisterSites. After exploring how betting and casino sites are structured for another project, I felt that there was a gap in the market, more specifically for correct, reliable and up-to-date information on the companies behind each site.
As such, I'm responsible for identifying the 'hidden' sister sites and debunking a lot of the incorrect information that spreads around the web. My background in journalism certainly means that I have the perseverance to find the right answers, which helps in this case.