Welcome to the forum. Do you have everything on the online casino website about cookies and ISMS policies, but there is no section of the terms and conditions of service and the KYC policy, in any case, I could not find it, is it planned to be added or are they available only after the registration process?
They are game provider of slot for online casinos as what you read on the subject/title and as mentioned on earlier reply of OP. They are not a casino so KYC isn't a thing for any users unless you have a casino business trying to partnered with them that of course, requires business related documents and stuff.
I also thought that it was a casino because we've used to seeing casino announcements here it turns out it's a slot providers for casinos, OP opened it here to have an official announcement here to get more clients subscribing to their slot, its a good move because many casino operators are also watching this forum for the latest news about particular casinos and the whole industry, so welcome here and continue interacting.
Almost the majority of game provider is already available on all casino including the small one. I believe they are in package deal once you purchase a casino program to a developer. The purpose of this thread is clearly stated on the OP. They are looking for a client casino but rather they want to connect to all the players to answer question, receive feedback and to attract more user to use there slot by doing some announcements here. The competition of game provider is very tough because they are already saturated on the casino. Endorphina is one of the old slot provider that I know that still exist but new providers is now dominates the market with there new flashy slot games.