It is quite surprising to us here at casinos.ie that some of the smaller less well known online casinos still try to write their own casino software when in fact all the major online casino companies who you might think have the ability to write casino software actually use specialised companies of which there are only a handful. The reason is probably that the cost of buying or leasing casino software can be quite high and online casinos without a certain level of customers can probably not afford it but for you the customer, using home grown casino software must come with a health warning even if the graphics and sound are to your liking. In truth there is a very good chance that you have never even considered whose software your chosen online casino uses and if you use one of the online casinos that we list here at casinos.ie you don’t need to worry as we have already checked that it comes from a reputable source; the important thing is that you enjoy the range of games available and the graphics that that particular casino software provides. Just occasionally an online casino will change casino software provider as happened last October with Paddy Power casino which it might do for a variety of reasons but this will give the appearance of a completely new online casino; the other thing to look out for is the casino slots that are being offered and the level of the progressive jackpots. Several online casinos may show the same casino slots and this is an indication of them using the same casino software provider and in terms of jackpots this is a good thing as all users of that software will contribute to the jackpots which means they will build up much faster than would otherwise be the case. Online casinos can also sometimes use several different pieces of casino software in the range such as using one for the slots offering and a different one for the games section which again is not a problem at all and is quite common practise. The major players in the casino software market are Playtech, Netent, Microgaming, Cryptologic and Wagerworks..