Twenty brands, from Airbnb to Vitality, have been shortlisted for The Marketing Society Brave Brand of the Year, in association with Campaign.
An online vote will narrow down the list to five finalists.
Those five finalists will be put to a live poll to decide the winner at The Marketing Society's Annual Dinner on 15 November.
To vote, visit brands.marketingsociety.com by 5pm on 27 October.