Emergencies, be they natural or man-made disasters, and protracted crises have increased worldwide in the recent past. The provision of adequate WASH services at every step of a crisis, from the first emergency to rehabilitation and long-term development, is crucial in order to protect human and environmental health. The Strategic Environmental Sanitation Planning group at Sandec is leading various efforts to support the humanitarian sector in terms of emergency WASH. A Compendium of Sanitation Technologies in Emergencies was published in partnership with the German WASH Network and Swiss Humanitarian Aid and a Massive Open Online Course wash launched in collaboration with the International Committee of the Red Cross. A PhD thesis, which will deal with water and environmental infrastructure services for urban refugees is also underway. Sandec provides regular backstopping services to the Swiss Humanitarian Aid (SHA) in terms of capacity building, advisory services and innovation.