Joshua Prince-Ramus was the founding partner of OMA New York-the American affiliate of the Office for Metropolitan Architecture (OMA)/Rem Koolhaas in the Netherlands - and served as its Principal until he renamed the firm REX in 2006. While REX was still known as OMA New York, Prince-Ramus was Partner in Charge of the Guggenheim-Hermitage Museum in Las Vegas and the Seattle Central Library.