A spokesperson said it is now the largest fully integrated conference and exhibition centre in the continent.
It comes after a 25 per cent expansion of the venue’s capacity, with a new 25,000 square metre extension.
The space was unveiled at the season finale of the ABB FIA Formula E World Championship.
This expansion forms part of a £350 million investment by the ADNEC group, aimed at establishing Excel as the best event destination worldwide.
Humaid Matar Al Dhaheri, chairman of Excel London and group chief executive of ADNEC, said: “The expansion of Excel marks a pivotal moment and a strategic investment to drive growth for ADNEC Group, as well as reinforce London as a world-leading event destination.
“The increased space directly translates into higher revenues and profits through improved occupancy rates and the ability to host larger and concurrent events.”
This expansion also includes an enhanced convention centre and exhibition halls, conference spaces and meeting rooms.
Jeremy Rees, chief executive of Excel London, said: “This expansion is a historic moment of pride not just for Excel in its 25th anniversary year, but for the entire city of London.
“Interest and bookings for our new expansion, and Excel as a whole, are at unprecedented levels.”
