Manufacturing and Distribution

  • Certainteed Corporation
  • Lukens Steel Company
  • R&B Corporation

Chemicals

  • ICI Americas Inc.
  • Quantum Chemical Corporation
  • Quantum Performance Films

Computing Services

  • SAP

Environmental

  • R. F. Weston Inc.

Insurance

  • Reliance Standard Life Insurance Company

Pharmaceuticals

  • SmithKline Beecham
  • AstraZeneca

Municipal Land Management

  • Philadelphia Land Bank
  • Philadelphia Redevelopment Authority

Telecommunications and Networking

  • AT&T
  • ATX Communications

Transportation

  • Consolidated Rail Corporation (Conrail)
  • Amtrak

Energy

  • AmeriGas
  • UGI Corporation

Health Care

  • Hospital of the University of Pennsylvania

Industrial Services

  • International Service Systems