All of the UK's leading media agencies and media owners will be represented at this evening's sold-out event.
Awards to be announced at the ceremony include Agency of the Year, Sales Team of the Year, Media Brand of the Year, Media Launch and Media Innovation. There will also be individual recognition for the Rising Stars at media agencies and media companies.
Meet the judges
This year's awards judging involved more than 100 media leaders (many pictured below) selected by Media Week editor Arif Durrani from all sides of the industry, led by co-chairs Bruce Daisley, managing director of Twitter UK, and Claudine Collins, managing director of MediaCom.
Daisley said: "The responsibility of judging others' work is one that is taken lightly and then weighs heavily. A couple of years ago, a disappointed nominee came up and vocally shared what they thought of me and the other judges.
"They asserted that 'politics had robbed them'. As I told them that night, nothing could be further from the truth. When selecting winners for these awards, the judges are intensely focused on choosing the right ones. Whether you win or lose, feel proud if you're nominated. Only exceptional work reaches this stage - you're in outstanding company."
The #MediaWeekAwards is the biggest night of the year for those in the commercial media business and the licensing hours of the Grosvenor Hotel have been extended by two hours for an evening that will also feature live music and DJs.
Top-tier sponsors at Media Week Awards 2014 include BrightRoll, Gumtree, Mr Hyde, Miroma Ventures, OK! Magazines, Trinity Mirror Solutions, Say, Teads.tv and Truphone.
Keep up with all the stories from tonight on Twitter #MediaWeekAwards.