New York Metropolitan Transportation Council - Tower 1; 82nd floor. It's the New York metro MPO.
Port Authority of New York and New Jersey - Tower 1; floors 3, 14, 19, 24, 28, 31.
Gibbs and Hill (transportation engineering) - Tower 2; 91st floor.
Mancini Duffy (architects) - Tower 2; floors 15, 21, 22.
Tower 1 was struck between the 89th and 95th floor; Tower 2 between 79 and 90.
Any news regarding survivors from these firms and agencies would be much appreciated.
This is not a closed thread; followup posts are welcome.