Powered by an outfit called Swissgaming. I haven't come across this turnkey provider before, but there's quite a lot on Google concerning it.
xxhttp://www.oranjecasino.com/ is new to me, too and is a Dutch language online operation. Nothing known on pfgaming, and the site does not appear to be operational (at least when I checked it)
I would do some research on Swiss Gaming before playing. They deploy Flash technology and have a limited selection of games. Here's a start for you:
xxhttp://www.swissgame.com/solutions.html
Software
Swissgame Game Server software runs on Linux systems (managed service), with an online Gaming Management System (GMS) that you'll love to use and adrenaline Flash Games for your players.
Services
We offer setup and customizing of your online gaming portal, plus 24/7 application management and support services.
Partners
We'll help you with financial services and legal consultancy through reliable partners like Bibit Internet Payments, Wire Card (both leading European internet payment providers) and SOLV (the only Dutch law firm that is fully dedicated to and specialized in the legal aspects of the internet and e-business.
Secure Online Gaming
Swissgame provides you with the ultimate reliability in secure online gaming. With a team of experts in internet technology, online transactions and creative game design, we offer turnkey solutions for this part of the internet that is financially healthy.
News: Swissgame delivers gaming system to Oranje Casino
Swissgame has, through its subsidiary Swissgame Malta Ltd., delivered the online gaming system to Oranje Casino Ltd. The company operates Oranje Casino, aimed at Dutch speaking players worldwide, under a Maltese gambling license.
Swissgame N.V.
E-Commercepark
E-Zone Vredenberg
Curaçao
Netherlands Antilles
Phone: +599 9 4338862
Fax: +599 9 4338863
Regarding Malta as a jurisdiction, there are conflicting views. I've mediated in three issues concerning them and they have been communicative and open, with an efficient compliance officer who was prepared to get involved and help resolve the issues.
The LGA (Malta) people are usually in attendance at most of the big industry conferences and I have always found them open and prepared to talk about what they do and how they do it.