Operators
Air Canada
Air Canada Jazz
Air Routing International, L.P.
Air Tran Airways
Air Transport Association
Airline Dispatchers Federation
Air Wisconsin Airlines
Alaska Airlines
American TransAir
America West Airlines
American Airlines
ARINC
Atlantic Coast Airlines
Atlantic Southeast/Delta Connection
Business Express/Delta Connection
Comair Holdings/Delta Connection
Continental Airlines
Continental Express
Delta Airlines
Federal Express
FlexJets
Honeywell Flight Sentinel
Jet Blue Airways
Mesa Airlines
Midwest Express Airlines
National Airlines
Nat'l Business Aviation Association (NBAA)
NetJets
Northwest Airlines
Piedmont Airlines
Reno Air
Skywest Airlines
Southwest Airlines
Spirit Airlines
Trans State Airlines
United Airlines
United Parcel Service (UPS)
Universal Weather and Aviation
US Airways

Government
Federal Aviation Administration

NASA Ames Research Center
Naval Research Laboratory
Oak Ridge National Laboratory
Volpe National Transportation Systems Center

Industry
Air Line Pilots Association (ALPA)
ARINC, Inc.
Aviation Management Associates, Inc.
BLR Group of America, Inc.
Boeing
David R. Borneman Associates
Dimensions International
Flyte Comm of Florida, Inc.
GFB & Associates, Inc.
Lockheed Martin Corporation
Megadata Corporation
Metron Aviation, Inc.
Mitre Corporation/CAASD
National Center for Atmospheric Research
NAV Canada (Canadian ATS provider)
Recom Technologies, Inc.
Seagull Technology, Inc.
SoHaR Incorporated
Sonalysts Inc.
Systems Atlanta, Inc.
Van Horn Nehman & Associates


Academia
Center of Excellence (NEXTOR)
Embry-Riddle Aeronautical University
Kent State University
Massachusetts Institute of Technology
Ohio State University
University of Maryland
University of Minnesota