[briandear]

How are the founders on H1B? That's a temporary worker visa that requires employment sponsorship. An EB1 would be the more appropriate visa. If the founders are sponsoring their own visa -- well that would be a neat trick.

As far as the entire company being H1B -- is it even possible that not a single American was available for a job?

H1B is heavily abused.

[btbuilder]

It's perfectly legal now to be a founder on an H1B if there is a way for the "company" to fire any individual. Establishing a board of directors with investors or having 3 co founders so that any 2 can fire the third.