In a report commissioned by ACC Liverpool and Liverpool Convention Bureau, more than 20,000 international delegates have visited the city since January 2014, with an estimated contribution of £39m from accommodation, retail and social events.
The findings don’t include visitors to the International Festival for Business, which is estimated to have attracted 250,000 delegates from more than 80 countries.
The European Society of Biomaterials conference, which was held at ACC Liverpool in September, was attended by more than 1,000 delegates, with an economic impact of £1.8m.
Kerrin MacPhie, director of sales at ACC Liverpool, said: "Liverpool has had a successful year with a number of international conferences, aside from those which were held as part of the International Festival for Business.
"At ACC Liverpool alone we have many more in the pipeline, such as UNI Global Union due in 2018. We have a further eight potential events which we have submitted bids for; if these all confirm they will generate a further £22m in economic impact for the city region.
"The addition of Exhibition Centre Liverpool to our existing facilities will enable us to host larger international conferences with attached substantial exhibitions and it is part of the city’s plan to continue to develop on an international stage."
ACC Liverpool's new £40m exhibition centre is scheduled to be complete in spring 2015. The venue will inclide 8,100 square metres of event space, including a three-hall exhibition centre, which will interconnect with ACC Liverpool’s existing facilities.