We're starting out in the U.S., but have a number of other markets in-flight. Please let us know about your use case on the invite form (https://stripe.com/issuing) — that'll help us prioritize where to go next :)
I have reached out, just now, please begin the discussions with us asap because we are in the middle of going with Emburse and would consider this instead.
Emburse are great! They provide far more in the way of user a user experience to set controls, manage budgets, etc. We'd highly encourage going with them! (Stripe Issuing is an API-first product -- if you want to build software like Emburse, we would be more suitable.)