ARIF is based in Switzerland, and regulates a number of forex market makers based in that country. The best known are:

Crown Forex SA
MIG Investments SA
Dukascopy (Suisse) SA

Some of the lesser known firms are:

GENFOREX SA
Natcom Forex SA
OneForex Trading Sàrl
Spot Forex Management Sàrl
FXPERT SA
TADAWUL FX SA
EFXFX SA

Arif stands for Association Romande des Intermédiaires Financiers