Turnkey Enterprises LLC, 307 Burlington Rd, Pittsburgh, PA 15221, US

Founded in 1927, J J Gumberg Company is one of the leaders in the marketing and development of residential and commercial real estate throughout Pennsylvania. The company offers seasonal and permanent leasing, and owns and operates more than 15 million-square-feet gross leasable area. The firm also maintains a portfolio of more than 30 retail centers, including commercial office properties, shopping centers and regional malls throughout the United States. Through its online property section, the firm provides information on inline and outparcel gross leasable area. It also offers a wide range of financing options for single and multifamily homes, condominiums, and mobile homes. J J Gumberg Company is headquartered in Pittsburgh.