Expeditions operator Bull Precision Expeditions has collapsed seven months after the death of one of its co-directors.
The CAA said Nottinghamshire-based BPE ceased trading on November 24.
It specialized in organising Duke of Edinburgh expeditions and other overseas educational trips.
The company’s co-director Kathryn Bull, wife of founder and fellow director Steve Bull, was killed in April while working with horses. She also ran her own livery yard.
The CAA said it was currently collating information from the company and will contact customers holding bookings with further guidance ‘as soon as possible’.
