Work can be submitted across 11 sector categories, such as automotive, health & beauty and alcoholic drinks.
For a second year, seven Big Agency of the Year awards will be handed out, one for each media channel. The winning agencies will receive a prestigious Campaign gold award.
Last year’s gold winners included Adam & Eve/DDB, for "the long wait" for John Lewis, and CHI & Partners, which took home a gong for its press work for The Sunday Times Rich List campaign.
The winners will be revealed at the ceremony in October.
In the video below, Hegarty discusses creativity and advertising today.
Find out more at campaignbigawards.com.