Here's a start... the full list of the new 109s they supplied while they had that role with the registration it was delivered with to the customer
109A
7170 G-OAMH Willowbrook International, Op by Alan Mann Helicopters
7173 G-HWBK Willowbrook International, Op by Alan Mann Helicopters
7174 G-HELY Barratt Developments
7187 G-UPVC Anglian Double Glazing
7213 G-WEST Westland Helicopters
109A MK.II
7244 ZE412 Army Air Corps
7245 ZE413 Army Air Corps
7265 G-EJCB J C Bamford Excavators
7272 G-GBCA British Car Auctions
7307 N109AB John Laing Construction
7347 G-HBCA British Car Auctions
7393 G-OTSL Therm-a-Stor Double Glazing
7410 VR-BKQ USAL
7411 G-BOLA Laura Ashley Group
7412 G-VJCB J C Bamford Excavators
7437 G-PJCB J C Bamford Excavators
109C
7643 G-LAXO Glaxo Pharmaceuticals