From the DfT trade day list. OK, so several bean counters, trainers and so on in this list but don't betray anything by adding anything new, simply delete as applicable.
agustawestland
Babcock International Group
Bond Offshore Helicopters Ltd
Bristow Helicopters Ltd
British International Helicopter Services Ltd (BIHSL),
British Southern Air
Burges-Salmon
CHC
DevelopingAssets (UK) Ltd
Dial Eipex
DLA Piper UK LLP
Elbit Systems UK Ltd
Eurocopter UK Ltd.
Evergreenhelicopters
Ernst & Young
FB Heliservices Ltd
Ferranti Technologies Ltd & Elbit Systems
Lockheed Martin UK integrated Systems
Milestone viation Group
Mott MacDonald
Parsons Brinckerhoff
Persides Consultancy Services Ltd
Primeguild Ltd
Quintec Associates Limited
Serco Defence Science and Technology
Sikorsky Aircraft Corporation
Thales
WPK Management Consulting BV