Founded in 1982, NGG is a custom curtain wall company that specializes in design, manufacturing and installation services. It offers curtain wall systems glazed with insulated and laminated glass, metal panels, stones, tiles, mesh screens and sunscreens. The company also provides skylights, canopies and blast-rated curtain wall systems, as well as glass integration solutions. NGG staff specializes in project management, design, manufacturing and field execution services. In addition, it offers planning, control budgeting and safety services. NGG has undertaken various projects, including Hilton Hotel, Pulitzer Foundation for the Arts, Pinnacle Hotel and Casino, St. John s Mercy Heart Hospital and Washington University.