Aufgang Architects is a design firm based in Suffern, New York, founded in 1971 by Jacques H. Gerstenfeld. In 1999, Hugo Subotovsky took over management of the firm from Gerstenfeld and renamed it Hugo S. Subotovsky AIA Architects. He changed the firm's name again, to Aufgang + Subotovsky, after he promoted Ariel Aufgang to partner in 2009. Aufgang had been an associate with the company since 2006. The firm became Aufgang Architects in 2013. The firm's portfolio includes Brooklyn projects such as the 96-unit residential condominium conversion of the Brillo Factory in Dumbo, a 105-unit residential building at 470 Fourth Avenue, a 148-unit building at 535 Fourth Avenue, and a condo-and-rental building at 66 Ainslie Street in Williamsburg. The firm has also designed buildings such as 29-10 Broadway in Astoria, Queens, and the Suffern Building Works in the firm's hometown of Suffern. Aufgang Architects offers interior design services, as well as site feasibility evaluations, construction administration, and code compliance services. -MK