Joel M. Koppelman

Primavera Systems, Inc. provides project portfolio management solutions. It offers software solutions to serve the companies working on projects in industries such as aerospace & defense, construction & engineering, financial services, government, utilities, oil & gas, chemicals, high technology and professional service engagements. The customers of the company include AFLAC, Alcatel, AIG, Army Corps of Engineers, Bechtel Group, Bovis Lend Lease, ChevronTexaco, Citicorp, ConocoPhillips, EDS, Ericsson, ExxonMobil, Federal Express, Fluor, Ford-Jaguar, General Motors, Guardian Life Insurance, Honeywell IAC, Hutchison 3G, Intel and Johnson & Johnson. Primavera Systems was co-founded by Joel M. Koppelman & Richard Faris in May, 1983 and is headquartered in Bala Cynwyd, PA.

The Opera Co. of Philadelphia operates an opera house. The private company is based in Philadelphia, PA.

The Day & Zimmermann Group, Inc. engages in the provision of architectural, engineering, and construction services. Its services include engineering, construction, and maintenance; munitions; givernment services; and recruiting and workforce solutions. The company was founded by Charles Day and Kern Dodge in 1901 and is headquartered in Philadelphia, PA.