Philip Treacy le Bon, Kate Moss, Christy Turlington and Stella Tennant modelling in return for keeping Treacy's hats, which were all black. In 1994, he opened up his boutique at 69 Elizabeth Street, in Belgravia, London, right beside Isabella Blow's resicence at number 67. Treacy has designed hats for Alexander McQueen (another discovery of Isabella Blow), including his 1999 "white collection" for Givenchy Haute Couture in Paris, for Karl Lagerfeld at Chanel, and for Valentino, Ralph Lauren, Donna Karan, Versace and Rifat Özbek. In January 2000, he became the first milliner for 80 years to be invited to exhibit at the Paris
Keith Treacy with Preston North End on 1 February 2010. Following his move to Preston, Treacy defended his move to Blackburn's arch-rivals, Preston North End, was only for to play football. Treacy made his Preston North End debut on 2 February 2010, in a 4-1 loss against Barnsley. He scored his first goal for the Lancashire outfit in a 3–1 defeat Crystal Palace on 5 April 2010, followed up by scoring and provided an assist, in a 3-2 win over Scunthorpe United five days later. In the second half of the season at Preston North End, Treacy scored twice in seventeen appearance.