ESP was founded by Simon Rush in 1989 when full time production started on Football Masters a sports management simulation on the Atari ST and was constantly improved and re-released for 13 years.

Several other sports management games were also released under the brand covering Cricket, Formula 1, Wrestling and Boxing but only Stable Masters based on horse racing continued in the long term to the PC format.

After a long period of inactivity a new unique game concept called MYOB has slowly been worked on that is an fun economic business mining game that has several educational elements to it.