Default company panoramic image
34986004 3cb5 4ee9 8dd4 156cb6ae7559

PutahGreen Systems, Inc.

PGS has developed software for telecom routers to reduce their energy usage by over 50%, thus saving over $15Billion/yr in electricity cost.

  • Stage Full Product Ready
  • Industry Clean Technology
  • Location Davis, CA, USA
  • Currency USD
  • Founded August 2010
  • Employees 8
  • Website

Company Summary

PGS, a startup company incubated at UC Davis, has developed software to reduce the energy usage of Internet routers by over 50%, thus saving over $15Billion per year in electricity cost. We do so by consolidating traffic at light loads over few active components such as line cards in routers, and then shutting down the inactive components. Our customers are enterprises and network operators who own and operate the 4 million routers worldwide.


  • Default avatar
    Bis Mukherjee
    President and CEO

    Bis Mukherjee, PGS Founder, is also Distinguished Professor of computer networks at UC Davis, where he has been for 25 years. He was a Member of the Board of Directors of IPLocks, a Bay Area startup company (2002-07). He has served on the Advisory Board of many startups, including Teknovus (acquired by Broadcom). Most of his 47 PhD alums work in Bay Area companies (Cisco, AT&T, Sprint, Google, Oracle, Apple, HP, Brocade, Broadcom, Ericsson, etc.)

  • Default avatar
    Pulak Chowdhury
    Vice President

    Pulak Choudhury is Vice President (R&D) at PGS where he leads the technical group for developing next-generation network energy management solutions. He received the Ph.D. degree in Computer Science from UC Davis and the M.A.Sc. degree in Software Engineering from McMaster University, Canada. He has published numerous scholarly papers on energy-efficient networking. He is an alumnus of UC Davis Green Technology Entrepreneurship Academy 2009.

  • Default avatar
    Akio Sakamoto
    Chief Strategy Officer

    Akio Sakamoto retired as General Manager of NEC America in 1996 after a 20-yr career. He was Founder, President, and CEO of HolonTech (server load balancer appliance; 1996-2001); Auraline (E-marketing ASP; 2001-02); and IPLocks (database security software; 2002-08). After IPLocks’ M&A with Fortinet, he became Chief Strategist and Far East Asia VP of Fortinet.


  • Default avatar
    Michelle Hallsten, Greenberg-Traurig LLP

Previous Investors

  • Default avatar