SIMFI is a web based application which simulates a microfinance market. It integrates all issues faced by microfinance institution (MFI) managers in their daily operations. The idea behind this innovative tool is to provide realistic support for microfinance training by putting theoretical microfinance knowledge into practise. The development of this simulation software has been possible thanks to the collaboration of ADA, a Luxemburgish NGO specialised in microfinance support activities, Stachanov, a Dutch software engineering company, and ATTF.