Pittsburgh Technology Center (PTC) is an office park located in the South Oakland neighborhood of Pittsburgh, Pennsylvania. PTC, on the 48 acre site of a former Jones and Laughlin Steel Mill, is a hub of advanced academic and corporate technology research. More than 1,000 people work on site which has become an attractive location for knowledge workers in Pittsburgh's new economy. The center was budgeted at $56.8 million during the summer of 1991. The total development cost, including public and private investment, exceeded $104 million. The Pittsburgh Life Sciences Greenhouse operates wet lab space in its Bridgeside Point I business incubator that has been responsible for assisting over 24 companies. The $46.5 million 150,000 Bridgeside Point II began construction in 2007.