Pump Aid -London (United Kingdom)

  RedR -London (United Kingdom)

  Reed Elsevier -London (United Kingdom)

  RELX Group -London (United Kingdom)

  Resourcematics Limited -London (United Kingdom)

  SafeHands for Mothers -London (United Kingdom)

  Sam Ruston -London (United Kingdom)

  SHARE -London (United Kingdom)

  SWA -London (United Kingdom)

  Save the Children -London (United Kingdom) [siège]

  SCI -London (United Kingdom)

  SOAS -London (United Kingdom)

  Scriptoria Ltd -London (United Kingdom)

  SHELL -London (United Kingdom)

  Social Finance -London (United Kingdom)

  Stone Family Foundation -London (United Kingdom)

  Sustainability -London (United Kingdom)

  Systemiq -London (United Kingdom)

  The Conversation -London (United Kingdom)

  The Guardian -London (United Kingdom)

  The Lancet -London (United Kingdom)

  TNC -London (United Kingdom)

  The Times -London (United Kingdom)

  Toilet twinning -London (United Kingdom)

  Trémolet Consulting -London (United Kingdom)

  True Vision Productions -London (United Kingdom)

  UNDP -London (United Kingdom)

  Unicef -London (United Kingdom)

  Unilever -London (United Kingdom)

  UCL -London (United Kingdom)

  UCL -London (United Kingdom)

  UNSGAB -London (United Kingdom)

  Veolia -London (United Kingdom)

  Vitol Foundation -London (United Kingdom)

  WSUP -London (United Kingdom) [siège]

  WaterAid -London (United Kingdom) [siège]

  Womankind -London (United Kingdom)

  World Bank -London (United Kingdom)

  WEC -London (United Kingdom)

  ORT -London (United Kingdom)

  Zed Books -London (United Kingdom)