I am writing a book chapter about the construction of the World Trade Center and I am trying to locate the contractors --- and contractor-related vendors --- who worked on the WTC (e.g., PDM supplied parts of steel frame). I would appreciate any leads, particularly to contractors with "quiet" roles. Thank you for any help.

• ID# 85.2 (reply to #85.1) - 28 Nov 1998
  On the merited, yet now-defenct(?) website "World Trade Center Towers: A High-rise Case Study" by an unknown author/editor (the pages I have don't have any author info) there was a list to begin your search with: I will reproduce it here as the URL I had is old and I thus can't link to the source -- if it's at all available online anymore. ED

  Architectural Design:
       M. Yamasaki and Associates. Troy, Michigan.
       E. Roth and Sons. New York, New York.
  
  Structural Design:
       Skilling, Helle, Jackson. Seattle, Washington.
  
  Foundation Engineers:
       The Port Authority of New York and New Jersy, Engineering Department
  
  Electrical Engineers:
       Josephe R. Loring & Associate, New York
  
  Mechanical Engineers:
       Jaros, Baum, and Bolles, New York.
  
  General Contractor:
       Tishman Realty & Construction Co., Inc. New York
  
  Built:
       Commissioned,1962.
       Constructed, 1966-1976
  
  Commissioned By:
       Port Authority of New York