The entry deadline is on Thursday 26 May – but late entries will be accepted until 9 June, incurring a late fee.
Gongs will then be handed out across the 31 categories at a glittering ceremony in London on 18 October.
For just £45 + VAT, entrants can purchase the film of an awards breakfast briefing held earlier this year at which judges discussed how to stand out from other hopefuls.
Bibi Hilton, MD of 2015 Gold Award-winning Agency of the Year Golin, said: "The PRWeek Awards are the industry Oscars. To be awarded the Gold Award is the biggest accolade a communications agency can receive so it is impossible to overstate its impact."