JJ White, located in Philadelphia, is one of the leading construction companies in the United States. It provides a wide range of services, including general and mechanical constructions, construction management, exchanger, and high-volume air conditioning services. It employs more than 150 experienced technicians and they are available 24-hours, seven-days a week for client s high-volume air conditioning needs. JJ White serves a wide range of clients, such as commercial and industrial, pharmaceutical, and institutional organizations, including GlaxoSmithKline, Johnson & Johnson, Novartis, Archdiocese of Philadelphia, Drexel University, Princeton University, and University of Pennsylvania. Some of its commercial and industrial clients include Twenty 21 Restaurant, Philadelphia Newspapers, Verizon, WPS Power, and Boeing. JJ White participates in a wide range of community services, such as Catholic charities, hurricane relief fund, donations, and fund-raising events.