BHP -Zurich (Switzerland)

  ETH-Board -Zurich (Switzerland)

  EBP Schweiz AG -Zurich (Switzerland)

  EPER -Zurich (Switzerland)

  Global Water Fund -Zurich (Switzerland)

  Green Cross Switzerland -Zurich (Switzerland)

  Helvetas -Zurich (Switzerland) [siège]

  Rotary International -Zurich (Switzerland)

  South Pole Group -Zurich (Switzerland)

  SVGW -Zurich (Switzerland)

  ETH -Zurich (Switzerland)

  SWP -Zurich (Switzerland)

  Triple Z Gmbh -Zurich (Switzerland)