The conferences, which are set to bring 6,600 delegates to the city, were all confirmed within a three-week period and cement Edinburgh's strength as a scientific and medical organisations.
Among the latest bookings at Edinburgh International Conference Centre are the International Conference of Neutron Scattering in 2013, Eurotox 2014 and the Quadrennial Congress of the European Society of Plastic Constructive Aesthetic Surgeons in May 2014.
The ECB is aiming to secure £73.9m-worth of conferences in the current financial year, a target that is £400,000 more than the previous year's figure. The bureau says it has already reached £42.6m, with five months remaining.
ECB chief executive Sue Stuart said: "These results show that business tourism is holding up in a very difficult and increasingly competitive environment."