Fashion designer Zac Posen, who served as a judge on the recent Season 11 of Project Runway, has signed with UTA. Posen, who continues to be repped by manager Jason Weinberg attorney James Adams, had no previous agency representation. Posen who has his own brand, is an award-winning fashion designer who has dressed a slew of celebrities, including Natalie Portman, Rihanna, Amanda Seyfried, Kate Winslet, Claire Danes, Cameron Diaz, Jennifer Lopez and Beyoncé Knowles. On TV, he also has appeared as a guest judge on America’s Next Top Model and on Stylista.