Probably incorporation affects result by a wide margin. E.g. our company (not YC alumni) is incorporated in Delaware and based in Mountain View, but both found

Probably incorporation affects result by a wide margin. E.g. our company (not YC alumni) is incorporated in Delaware and based in Mountain View, but both founders are Polish and half of the employees are in Poland. On such list, we would come up as USA company. Probably quite a few companies have the same effect.