The Gamesys Group owns one of the United Kingdom's most prominent "Instant Win" and Bingo entertainment brands, "JackpotJoy". A relative latecomer to the online gaming scene, the Gamesys Group is incorporated in the UK and is steadily becoming one of the most rapidly growing businesses in the e-gaming arena. In recent years, the company has been responsible for developing some of the best new online casino games ever to be seen on the Internet although, at the moment, they are to be found only on the captive site.

Microgaming was the first company to devote its attention to developing online gaming software and launched in 1995. Today its product range remains one of the two most widely used in Internet gambling. The company is responsible for some of the hottest 3-reel and 5-reel online casino slot machine games to be found on the wide web. These include classic, multi-line, fruit machines, Vegas style, video slots, bonus round features and progressive jackpot slots. The Microgaming portfolio now features close to 400 online casino slot games and, as such, is the biggest single collection of online

Net Entertainment has concentrated on the niche market with a preference for browser based gaming software in which it has become something of a market leader. All of their casino and slot games can be played directly in the web-browser without having to download and install any specialized software to a local computer. Players are thus not tied to any given computer and may even play, should they so wish, from an Internet café.

Party Gaming offers a variety of online slot machine games that may be played purely for fun with free play money or with real money for the opportunity to win cash payouts.

Among the ore than 160 software companies competing for a share of the online gambling market, Playtech shares the distinction with Microgaming of being pretty much the joint leaders in the multi-million dollar gaming software industry. Although entering the market around two years after its major competitor, Playtech's flair for innovation and inherent understanding of the player's needs soon gained them parity. Their slots games include Vegas-style classics, multi-line, multi-spin, bonus round and progressive jackpot slots. Although its games portfolio is smaller than that of its main rival

Casinos operating on the Realtime Gaming (RTG) are characterized by three main factors. They exhibit better than average playing speeds, the offer unusually generous bonuses, and they apply fair gaming principles. Today, RTG's casinos and games are widely acknowledged for these characteristics.

Most of the companies that are involved in the development of software for online gaming purposes have at least one major feature that serves to differentiate their offering from that of their competition. In the case of Rival Gaming, also known for the graphically rich, user-friendly and fully interactive playing experience of their games, the differentiator lies in the fact that their downloadable software package has the capacity to run both on the Windows and the Mac operating systems.

Vegas Technology is not one of the more commonly encountered developers of online gambling software although it is one of the oldest. Previously known by the name "Odds On", it offers a substantial collection of online entertainments. These include all of the traditional card and table games plus one of the most comprehensive and enjoyable selection of slots games to be found on the Internet and consisting of more than a hundred classic 3-reel slots and 5-reel video slots games. In addition, the games lobby also hosts two of the extremely rare 7-reel games under the titles "Farming Futures"

WagerWorks is the online subsidiary of IGT (International Game Technology), reputed to be the biggest manufacturer of slot machine games in the world. The company develops and supplies a range of feature-rich and regulatory compliant online casino and slots games that includes such well-known titles as Wolf Run, Cleopatra and Texas Tea.

In addition to its own product offering, following its acquisition by IGT, the WagerWorks subsidiary now has access to the parent organization’s extensive portfolio of casino games. These include many that were previously only to be found in the bricks and