Lockheed Martin Corporation
Defense, aeronautics, and systems engineering company
Pfizer Inc.
Pharmaceutical, consumer and animal health products manufacturer
RTX
The world's second-largest aerospace-and-defense company
IBM
Providing hardware, software, and consulting and related services.
Hewlett-Packard
Computer and home electronics manufacturer
ConocoPhillips
Texas-based oil and gas corporation
ExxonMobil
Oil and gas exploration, production, and marketing