FYI, EU is enforcing PSD2 directive from mid-September (yes, that's in two weeks). After that, all bank accounts in EU should - at least in theory - be available to 3rd party aggregators. I am sure Plaid is looking into it. This should allow you to easily expand to EU in near future.
(Obligatory note: the reality is that not all banks are yet ready for PSD2 and opening the APIs for their customer's accounts. But from mid-September, banks that are still dragging their feet will be eligible for fines, which should act as a good motivation.)
Anyway, it looks really amazing what you've done, and I'm really looking forward to services like yours expanding to EU.
(Obligatory note: the reality is that not all banks are yet ready for PSD2 and opening the APIs for their customer's accounts. But from mid-September, banks that are still dragging their feet will be eligible for fines, which should act as a good motivation.)
Anyway, it looks really amazing what you've done, and I'm really looking forward to services like yours expanding to EU.