As they closed out their convention Thursday after four days of meetings, panels, and parties that drew more than 16,500 industry professionals to Boston, leaders of the Biotechnology Industry Organization said they want to come back later this decade — if they can get more exhibition space and other accommodations.

“We would love to return to Boston,” said organization president James C. Greenwood. “It is a great biotech community and a great host city, but we have not locked in a date yet as we need the expansion of the Boston Convention & Exhibition Center before making a commitment.”