Our Team
Our Permament Team
Patrick
Kilchenmann
Founder and Owner
A geologist and hydrogeologist by training, Patrick has more than 30 years of professional experience. He began as a scientist in applied research in Switzerland before conducting long-term missions internationally — notably in Burkina Faso, Côte d’Ivoire, Mali, Haiti, Nepal and Sudan. He has worked for the ICRC, SDC, SKAT Consulting and Helvetas. His areas of expertise cover groundwater management, WASH programmes, conflict prevention and resolution, humanitarian access negotiation, governance and institutional strengthening.
Mehdy
Al-Zoubaidy
Geologist and Hydrogeologist
Holding a master’s degree in hydrogeology, Mehdy has 12 years of experience in Switzerland (environmental impact studies, engineering) and internationally (Morocco, Lebanon, Madagascar, Bangladesh). Specialised in integrated water management and spatial analysis, he works on our hydrogeological projects in Switzerland and abroad since March 2023.
The Switzerland team
Cyrille
Scherrer
Geologist and Hydrogeologist
Holding a doctorate in hydrogeology, Cyrille specialises in mapping groundwater potential for drilling in humanitarian crisis situations. His work has contributed to the completion of more than 100 high-yield boreholes in refugee camps in Uganda. He works on our geothermal projects in Geneva and provides hydrogeological support in Wallis and Geneva. He joined our team in January 2025.
Sam-Bien
Sogle
Junior Exploration Geophysicist
Specialised in 3D Electrical Resistivity Tomography (ERT) and Induced Polarisation (IP), Sam-Bien leads our quaternary aquifer prospection project in the Geneva basin. He integrates high-resolution geophysical imaging with existing geological and hydrogeological data.
Blaise
Loup
Senior Geologist and Geomatician
A graduate of the University of Geneva, Blaise brings more than 30 years of experience in the management and analysis of geoscientific databases. Proficient in ArcGIS Pro and SQL queries, he has in-depth knowledge of the Geneva subsurface and oversees our hydrogeological projects and institutional databases. He joined our team in June 2024.
The International Team
Hala
Moughanie
Public Strategies Expert
More than 15 years of experience in public policy development and institutional reform. Managing Director of Madina for Service Development. Dropstone references: Burundi (AFD), DRC (Carter Center), Lebanon (SDC), Mali (SDC).
Kingsley
Akoh Akebegho
Database Developer & IT Specialist
Specialist in database management systems and web development. Has collaborated with Dropstone since 2018 on the development of databases for humanitarian project monitoring.
Pedro
Basabe
Senior DRR Expert
Doctorate in hydrogeology (EPFL). Contributed to drafting the Hyogo Framework (2005) and the Sendai Framework (2015) within UNDRR. Led the UNDRR Africa regional office (2008-2013). SDC DRR Officer for South-East Asia and the Pacific (2017-2022).
Caroline
Gloor
Junior Evaluation Specialist
Holding a degree in international relations, Caroline specialises in gender, women’s empowerment and development issues. She contributes to our evaluation and project monitoring mandates in international contexts.
Shukhrat
Igamberdyev
SENIOR WATER EXPERT
More than 20 years of experience in integrated water resource management in Central Asia. Confirmed expert in WASH, irrigation, watershed management and DRR.
Cyrille
Scherrer
Geologist and Hydrogeologist
Holding a doctorate in hydrogeology, Cyrille specialises in mapping groundwater potential for drilling in humanitarian crisis situations. His work has contributed to the completion of more than 100 high-yield boreholes in refugee camps in Uganda. He works on our geothermal projects in Geneva and provides hydrogeological support in Wallis and Geneva. He joined our team in January 2025.
Trust Built
They have entrusted us with their strategic decisions
From Switzerland’s leading public sector organisations to the world’s largest international agencies, our expertise has helped to develop
both long-term and emergency solutions.
