Partners Andrews Aldridge is the incumbent on the business. The Energy Savings Trust, which was formed in 1992 to reduce carbon dioxide emissions in the UK, also called a creative agency pitch at the end of last year, but it was later scrapped.
Partners Andrews Aldridge developed direct marketing to relaunch its range of programmes, covering the promotion of energy saving and an end to "fuel poverty".
The winning agency will be appointed for three years, with a review at the end of each financial year.
Work is set to cover consumer and business-to-business markets, with close co-operation with Energy Savings Trust's web and advertising agencies.
Rainey Kelly Campbell Roalfe/Y&R is its creative agency.
Its most recent work uses the line "homes behaving badly to increase recognition of the Energy Efficiency Recommended logo that appears on selected electrical products. Mediaedge:CIA handles media.
Poster executions built on the TV advertising. One spot showed a light looking up a woman's skirt.
With the pitch process about to begin, Energy Savings expects to have an agency in place by mid-July.