There are different providers of software used by different
online casinos. Here are a description of some of the software
and which casinos that use it.
Microgaming
Microgaming is one of the biggest software provider to online
casinos. Many casinos, all trustable uses this software
and PriceWaterHouseCoopers is in head of the control.
Casinos using Microgaming
Lucky Nugget 
River Belle 
Vegas Towers 
7 Sultans 
Royal Vegas 
Fortune Room 
ShowDown 
Jackpot City 
Wagerlogic
Former known as Cryptologic. Provides casino-software to major
online casinos such as InterCasino and William Hill.Cryptologic A winner of 'Top
Online Casino Software' 2007 and 2008 voted by Gambling
Online Magazine and simply the best casino software out there. Known
also for
the best multiplayer software at the market. Wagerlogic
is very strict, why not every online casino is allowed to use
their software. Money affairs are handled by Ecash Direct independent
of the casinos.
Casinos using award winning cryptologic Wagerlogic
software
Inter Casino 
William Hill 
Playtech
Also a very big provider of casino software. A lot of games
in singleplayer and a few in multiplayer. Great slot-games.
We do not list any casinos using Playtech at this moment.
Boss Media
Boss Media is swedish company quoted on the stock exchange.
Reviewed and controlled by the international firm of accountants
PriceWaterHouseCoopers. Public reports of the payout rates at
the casino's website.
We do not list any casinos from Boss Media at this moment.
Real Time Gaming
Real time Gaming provides stabile software and is stabile and
aware. Only a few casinos uses this software too.
Casinos using Real Time Gaming
We do not list any casinos from Real Time Gaming
software at this moment.
A report made of poker probabilities can be
viewed here. It is a review of Microgaming and Playtech.