Yanick,
GFT have what they call Base 10. This basically allows you to define your lot size, as long as the value is a multiple of 10. So for example, you can have a lot size of $1000, $1020, $2050, or the standard mini size of $10,000, which I have, or the normal lot size of $100,000. So although they do not specifically have a mini-account, it can be operated in the same way.
Their maximum leverage is 100:1