Ellman is a founder and partner at RRE Ventures. He currently sits on the boards of AdmitOne Security, BetaWorks, drop.io, Ember Corporation, Kashless, Payfone, Rave Wireless, RecycleBank and Storm Exchange. He also teaches a popular Venture Capital Seminar at Columbia Business School. Prior, he worked in finance at Dillon, Read and Morgan Stanley and later was a co-founder of Advisory Capital Partners.

Startup Technology,