PHOTOS: 100 of the coolest people in NYC tech partying at the top of the One World Trade Center

This week, we celebrated our annual Silicon Alley 100 list at the One World Observatory atop the One World Trade Center in downtown Manhattan.

Hundreds of people doing cool and interesting things in New York tech came for cocktails, good food, and great company. 

The group partied until late, straight through the event and into the after party that followed.