World Trade Center tenants

This is a list of the tenants of the World Trade Center at the time of the September 11, 2001 Terrorist Attack.

Major tenants of the north tower, One World Trade Center, included the Port Authority of New York and New Jersey, Marsh USA, Cantor Fitzgerald Securities, and Windows on the World[?].

Major tenants of the south tower, Two World Trade Center, included Verizon, the New York Stock Exchange, Morgan Stanley, and Keefe, Bruyette and Woods, Inc., and Aon Corporation.