New York
Calvin Klein, Marc Jacobs, Oscar de la Renta, Vera Wang, Zac Posen
Milan
Bottega Veneta, Burberry Prorsum, Dolce & Gabbana, Fendi, Gucci, Marni, Prada,Versace
Paris
Balenciaga, Chanel, Chloé, Christian Dior, Elie Saab, Givenchy, Hermés, Jean Paul Gaultier, John Galliano, Lanvin, Louis Vuitton, Viktor & Rolf, Yves Saint Laurent
That's about it. (And yes, those are all only the 'big' names, but that's pretty much all I care about in womenswear.) And notice the lack of New York designers?