Next Generation Long Island Inc. Share: COMMUNITY SERVICESERVICEBUSINESS RELATED SERVICES Next Generation Long Island Inc. PO Box 4038 Huntington, NY 11743 (631) 629-5405 About Map About A community organization made up of entrepreneurs & thought leaders on LI. A collective of Nassau & Suffolk county residents aged 18-35 interested in bringing together LI's top young leaders. What's Nearby? Distance: 5 10 15 20 25 50 mi.