Centennial Ventures

Centennial Ventures is a private venture capital firm based in Denver, Colorado. It invests in early and late-stage network companies and related enabling software and technology enterprises.

Steve Halstedt and Jack Tankersley founded Centennial Ventures in 1981. Its portfolio includes Market Force Information, Nitronex, ExteNet Systems, Inner Wireless, Crown Castle, Grande Communications Networks, Masergy Communications, Zayo, Telephia, Slacker, Alereon, Acellos, Panasas, ManiaTV, Siterra, Banyan Water, CoLabs Holdings, and FiberGate.