The body currently retains Consolidated Communications but they have ‘agreed to part ways' and a roster will be used in future. Consolidated was invited to repitch but declined.
The first rostered agency is expected to be installed by March.
When Consolidated was hired two years ago its brief - which spans consumer, B2B and public affairs work - was worth £750,000 (PRWeek, 12 Nov 2004). PRWeek understands this spend has since reduced by more than half.
EST joint heads of corporate and public affairs Ellie Springett, and John Fraser will co-ordinate the roster's creation.
Springett said: ‘We want new ideas on how to approach the media: ways in which we can work online and through word of mouth.' Projects up for grabs include the Energy Saving Week every October and a new Green Barometer - which will collect consumers' views of a given company's green credentials.
EST also wants to increase its commercial partnerships and step up its lobbying work.
The body is part-funded by the Department for Environment, Food and Rural Affairs, and private organisations.