She was raised by a multinational team. NTR founders were American, but the staff came from different backgrounds. Xabier (the bad guy, now GILF ex-CEO) is Scottish; there were a couple of Israelis (do you remember the MC's Krav Maga instructor?), Russians, some Americans, native language teachers from around the world, etc.
About loyalties, she was raised with a big loyalty feeling for the company. That feeling disappeared when the company tried to hunt them, though.
Knowing what governments pay to be done, and remember the US Government is NTR's main customer, I can't see her or Amanda having any loyalty for the US. They don't feel it to be their country. In fact, they feel like they don't have any country at all.