The Vassar Swiss Underwear Company Building is an industrial loft building located at 2545 West Diversey Avenue in Chicago, Illinois. It is also known as the Cooper Lamp Building and as of 2010 is slated to house the Green Exchange, a combination business incubator and office space. The building was placed on the National Register of Historic Places in 2008, and as of 2010 is being redeveloped into the Green Exchange, a site for small businesses dedicated to natural products and the environment.