The list has been compiled following a judging process and features a selection of high-performing professionals in their 20s across a variety of agency and in-house roles.
We will be profiling the 30 next month, asking their views on crucial industry issues and finding out more about them.
PRWeek also reveals the winners of the 30 Under 30: Newcomer category in a separate article today. This is for under-30s who have been in full-time employment in comms roles for no more than two years but have shown signs of a promising career.
The 30 Under 30 2020 are listed below, in alphabetical order: