There are 16 categories across film, direct, radio, press, outdoor and digital. Entries received after Tuesday 30 June will incur a late fee of £80 per entry.
The chair of judges is Tony Davidson, the joint executive creative director at Wieden & Kennedy London.
The winner will be announced at an awards ceremony at the Grosvenor House Hotel on Park Lane in London on 21 October.
Visit the Campaign Big Awards website for more information.