None of the major online casinos that we know of actually write their own casino software which might come as a surprise to many as you might expect that those big companies have sufficient resources to be able to do so but the truth is that there are a handful of specialist companies who do nothing else. These online casino software companies include such names as Microgaming, Playtech, Cryptologic, Chartwell and NetEnt and most of the major online casinos will choose one or more of these names to power the online casino. Microgaming started their casino software in 1994 making it one of the first casino software companies and it is used by the likes of Spin Palace casino whereas Playtech was not started until 1999 and had a poor reputation up until they carried out a major overhaul in 2002; Playtech are also credited in some circles as being the first to introduce live dealers to the online casinos. Cryptologic is possibly best known for the “Marvel”online slots which use the characters from the comic books and films while Chartwell which was established in 1998 is best known for the no download casino offering. Last but certainly not least is NetEnt or Net Entertainment to give them the correct name which has been around since 1996 and is in the opinion of casinos.ie that little bit different from the rest having very clear and simple graphics and some unusual casino slot games. NetEnt is used by www.allirishcasino.ie which goes some way to explain why casinos.ie has it as the top online casino at the moment. If you play at more than one online casino you may have noticed that they look very similar so for example Bet365 and BetFred online casinos carry the same games and the layout is very similar and the reason is that they use the same casino software.