Businesses are now being urged to make energy saving measures, which could save firms that spend over £50,000 on gas and electricity bills a year 20 to 30 per cent, by taking part in the trust's Carbon Survey.
This is part of a drive to cut the cost of commercial energy usage by £3 billion every year.
Ian Cheshire, group chief executive of the Kingfisher, said: "It is simply good business sense to be smarter about the way we use energy. It cuts costs, makes us more efficient and improves our reputation with customers."
A report by the Confederation of British Industry released last year found that over one-third of businesses switched energy supplier in 2009 in a bid to reduce their gas and electricity bills.
Click here to run an energy price comparison, and see if you could be paying less for your gas and electricity.