As a reference for those doing research on American bespoke tailors, I reproduce here the "best" US tailors from the August 2002 issue of the Robb Report:
Joe Centofanti, Philadelphia
Chris Despos, Chicago
William Fioravanti, New York
Christian Garcia, Coral Gables, Fla.
Anthony Gasbarri, Los Angeles [passed away August 2003]
Leonard Logsdail, New York
Manuel Martinez, Baton Rouge, La.
Tony Maurizio, New York
Frank Shattuck, New York
Giacomo Trabalza, Los Angeles
I don't have access to the original article but I believe all of these tailors are fully bespoke rather than made-to-measure.