He received the outstanding achievement award from the Energy Saving Trust during its 2007 Green Fleet Hero Awards.
Mr Trotman, business relationship manager at Whitbread, has kept the company at the forefront of green fleet management for many years.
Apart from the environmental savings, his efforts have helped save an estimated £300,000 annually between 1999 and 2005.
He said: “Any business can make substantial savings and reduce its impact on the environment.
Moving to a green fleet policy need not be complex.”
The awards recognised a number of different companies and suppliers.
Outstanding achievement: Nigel Trotman, Whitbread
Leadership award: BSkyB
Innovation: Sainsbury’s Online (runner-up: Trafficmaster/Citroën)
Industry supplier: LeasePlan UK (runner-up: Carillion Fleet Management)
Sub-100 fleet: Amey Infrastructure (runner-up: Commercial Group)
100-500 vehicles: London Borough of Islington (runner-up: Gateshead Council)
500-plus: Clear Channel UK (runner-up: BSkyB)
Business mileage: Atkins (runner-up: James McNaughton Group)
Grey fleet: North Lincolnshire & Goole Hospitals NHS Trust (runner-up: London Borough of Islington)