Comms departments and PR consultancies have until 17 May to enter.
This year, PRWeek has created two new categories. 'Best Integrated Campaign' will recognise PR-led campaigns by either in-house teams, full-service agencies or a combination of agencies from different marketing disciplines.
PRWeek will also recognise great work in fashion, arts, music and sport in the new 'Culture, Media and Sport' category.
The glittering ceremony will be held at Grosvenor House on 23 October.