The events are planned for the next three years: The Council for the Advancement and Support of Education’s Europe 2014 conference, Aquaculture Europe 2016 and the World Veterinary Poultry Association Congress 2017.
The wins were the result of a joint bid process against rival destinations. The venue worked closely with Marketing Edinburgh during the process.
Louise Andrew, the EICC’s head of sales and marketing, said: "Our hard-working partnership with Marketing Edinburgh is succeeding in attracting international events with a winning combination of the world’s most technically advanced conferencing space and a World Heritage social and cultural landscape in one city centre location."
The news comes three months after the opening of EICC’s £30m extension, which saw the world’s first hall-wide moving floor system.
The EICC is currently (8-11 October) hosting 650 delegates for Giro, a conference for insurance actuaries.