Secured with the assistance of Dublin's conference ambassador financial support programme, the wins include Life Cycle Assessment of Foods Conference 2016, taking place in October, with 450 delegates expected.
In addition, the International Network of Basin Organisations European Conference on the Water Framework Directive will attract 750 delegates in November 2017; and the Fire Safety for All in Buildings Conference, which will welcome 200 delegates, will take place in April 2016.
Addressing the importance of such conference wins, Miriam Kennedy, head of business tourism with Failte Ireland said: "The average business traveller tends to spend two or three times as much as a leisure tourist. Therefore, wins such as these are incredibly important for many of those hotels and venues which cater for such large events, sustaining and growing jobs as well as revenue in the sector."
These new events come on the back of four other conference wins for Dublin recently secured.