HCRQ's clients are some of the world's largest corporations. Our clients face significant challenges in safety-critical system design coupled with adequate, defendable system safety analyses, software safety analyses and safety cases.

HCRQ's clients look to us for guidance, and solutions to their problems.

Our clients have included:

• AAI Corporation
• Aastrom Biosciences
• ABB Corporate Research
• Aerospace Technologies Group
• Aerosystems International
• Agency for Defense Development (A.D.D.)
• Alcatel (now Thales)
• Allen-Bradley
• Amoco
• Arrow International
• Ascent Technologies
• Atomic Energy of Canada Limited
• Australian Aerospace Limited
• Australia AEW&C RPT
• Battelle
• Baxter Diagnostics
• Bechtel Corporation
• Bell Helicopter
• BNSF
• Boeing
• Bombardier
• Booz Allen Hamilton
• Bristol Aerospace
• CAE Electronics
• CANAC Railroad Technologies
• Canadian Space Agency
• Cattron-Theimeg
• Computer Sciences Corporation (CSC)
• Computing Devices Company
• CP Rail
• CriTech Research
• Data Transformation Corporation (DTC)
• Defence & Civil Inst. of Env. Medicine
• Delcan Corporation
• Delco Electronics
• DERA - Executive Agency of the MOD
• Digicomp
• Disney Parks & Resorts
• DJM Manufacturing and Sales
• DND
• Dow Chemical
• DTaQ (Korea)
• DuPont
• Dutil & Michaud Enterprises
• EDS
• EG&G
• EH Industries
• Electric Boat Company
• EPRI
• ERG
• FAA
• Fisher-Rosemount Systems
• FRA
• General Dynamics
• GMV
• Hamilton Sundstrand
• Harris Corporation
• Health Canada
• Honeywell
• IBM Federal Systems
• IMS-ESS
• Industrial Scientific Corporation
• ISG Technologies
• ITT - Defense
• Johnson Controls
• Korean Air (KAL)
• L3 Communications
• LECIP
• LIG Nex1
• Litton Systems
• Lloyd's Register
• Lockheed Martin
• MacDonald, Dettwiler and Associates
• McDonnell Douglas
• MD Robotics
• MicroSun Technologies
• Mikrodidakt
• Monenco AGRA
• Motorola
• Naval Surface Warfare Center
• NACMA/NATO
• NAV Canada
• New York Air Brake
• New York Air Brake - Train Dynamic Systems
• NIOSH
• Normalair-Garrett
• Northrop Grumman
• Novo Nordisk A/S
• NRC
• Odyssey Research Associates
• Ontario Hydro
• Orbital Sciences Corporation
• Pacific Gas & Electric
• Penn State University Applied Research Lab
• PlanTech
• Prior Data Sciences
• Quester Tangent Corporation
• Raytheon
• RCCT
• Rockwell
• RST Corporation
• Safetran
• Sikorsky Aircraft
• Software Verification Research Center
• Spar Aerospace
• STM A.S.
• TAI
• Thales Rail Signalling Solutions
• Thales Transport & Security
• Thiokol
• Thompson-Hickling Aviation
• Tracor Aerospace
• Transportation Technology Center, Inc.
• Transport Canada
• TRW
• TVA
• Unisys
• United Defense
• URS Corporation
• U.S. Air Force
• U.S. Army
• U.S. Coast Guard
• U.S. Marine Corps
• U.S. Navy
• Vitro Corporation
• Volpe Center
• WABCO Transit
• WABTEC Railway Electronics
• WA Systems
• Westland Helicopters
• 3M