If you are a registered petition campaigner, the promoter may be the person notified to the Petition Officer as the ‘responsible person’, or someone authorised by them to incur spending, or the organisation itself.
A standard imprint should look like this:
Printed by Armadillo Printing Ltd, 20 Barry Avenue, Leeds.
Promoted by J Smith on behalf of the Campaign Group, both of 110 High Street, Stafford.