Grossman's Inc. is a leading retailer of building materials in the northeastern United States.Grossman's Inc. is a leading retailer of building materials in the northeastern United States. In the early 1990s the company operated four chains of stores that provided,Grossman's Bargain Outlet is categorized under Siding Materials (SIC code 5211). Known organization manager is Floyd Smith.Find 9 Grossman's Bargain Outlet in New York. List of Grossman's Bargain Outlet store locations, business hours, driving maps, phone numbers and more.