if you're not a troll, then ... yes.
myself and quite a few others here have visited the operations multiple times for several years running.
the bulk of the operations are at the ODIS lab facilities at UConn in Storrs.
Rainer posted photos of the non-classified areas of the Storrs facility last August, you can probably find them in the link library or his blog.
if you're looking for whiz-bang shiny lab full of glitz, prepare yourself; Tony Stark isn't a shareholder to throw that kind of money around. It's a working lab, plain and simple, not a fluffer's showroom.
there are also an undisclosed number of employees at BAE facilities in Nashua, along with some in the 3rd-party foundry facility (speculation being that's in the Fab8 TDC R&D block at GF in Luther Forest, and/or some digs at EFK).
if I were to hazard a guess to put a number on it, I would say about two dozen employees in Storrs, but less than 50 total, along with another 50-plus non-employees (seconded to full-time POET work by the partners: BAE [confirmed], Synopsys [confirmed], GF [speculative]).
the Toronto office is a shared facility (think Regus), which is quite common practice, especially to save unnessessary expense (since they need a Canadian address for registration purposes).
the US mailing address is just that.
the office in San Jose is staffed by Ajit and his people.
hope that helps.
best luck with your investments,
R.