Since the start of the year it has welcomed the Diabetes UK Annual Professional Conference; IEEE International Conference on Communications; Global Offshore Wind; the Digestive Disorders Federation Conference and the Regional Congress of the International Society of Blood Transfusion.
Many of the events have seen a growth in delegate numbers; the European Renal Association-European Dialysis and Transplantation Association in May achieving four times the number of attendees from the UK compared to previous events; and dentistry congress EuroPerio8 recording a 25% rise in participants in June.
The docklands venue will host Europe's largest medical association meeting for the European Society of Cardiology later this month (29 August – 2 September), which is expected to welcome more than 30,000 international attendees.
Samantha Shamkh, head of conventions at ExCel London, said: "The record number of associations that are now choosing London is an endorsement of the decision to open our International Convention Centre.
"The world renowned attraction of London is responsible for delivering record breaking attendance and is why so many associations are now seeing our city as a prime location for their events. We are committed to continuing our investment in the venue, in the build-up to the opening of our Crossrail station in 2018 and beyond."
Becky Graveney, head of associations at London & Partners added: "This is a standout year for association events, with the European Society of Cardiology's annual congress just around the corner, and the fantastic spread of leading medical events coming to London. We're delighted that our strategy of targeting larger scale conventions and meetings, as well as our focus on London's sectoral expertise is delivering such strong results for the city.
"London now sits at number six for the number of meetings hosted and number four for number of delegates and we regularly see that when events come to London, the number of attendees increases."