New York — Both Gus Nuzzolese and Darren Leiderman previously held the titles of senior executive director at Colliers.
Colliers International LI Inc. has promoted Gus Nuzzolese to president and Darren Leiderman to COO of the Long Island operations, effective immediately. In his new role as president, Nuzzolese will develop stronger and extensive relationships with Colliers’ existing and new clients on Long Island, while advancing the activity level and performance of the operations’ pool of brokers and incoming salespersons. As 
Darren Leiderman, COO of Colliers International LI Inc.COO, Leiderman will focus on operations and strategic initiatives to execute Colliers’ growth plans for the Long Island office. Both Nuzzolese and Leiderman previously held the titles of senior executive director.