The group is looking to appoint up to seven shops to support the development of its regional marketing communications activities, excluding activities in the UK.
Activity in France and Germany is expected to be stepped up but it is yet to be decided how the contracts will be divided worldwide.
The first lot will cover Europe, which will be awarded to up to three agencies. The second batch will cover North America and will go to up to two firms, while the Asia-Pacific region will go to a maximum of two shops.
There are five agencies currently managing the body’s PR overseas: in the US, is New York-based MWW, in Canada, Fleishman-Hillard, in France is the Paris office of Burson-Marsteller, and Asia Pacific PR work is currently being managed by Weber Shandwick.
The body’s UK contract with GCI, which has been supporting its operations in Europe, is not up for review.
A spokesman for the body said: ‘Our PR agencies support our team to promote the UK as a world class inward investment and trade partner, in their tactical work, in business through events, and in communications through each of their key markets around the world.’
The contracts will run for three years with a possible extension of one year.