Complex sentence: The northwest quadrant of the district has been home to Prudential Insurance Company since it's founding, three buildings built by the company, including the original headquarters Gibraltar Building on Halsey Street, are found here as is the original flagship store of Bamburgers.
Split into simpler sentences: The northwest quadrant of the district has been home to Prudential Headquarters it's founding. Three buildings built by the finance company, including the Gibraltar Building on Halsey Street, are found here as is the original flagship store of Bamburgers.