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our team

David Gallagher, Executive Director

With an MSc (SOAS) in Sustainable Development, David has travelled extensively and has worked in International Development for over 40 years, mainly in the non-government sector - CUSO (Latin America), OXFAM (Africa and the Caribbean) and CARE (Balkans). He now works as an independent consultant on programme development, participatory evaluation and institutional proposal writing.

As former Chair of the Board, David is now Executive Director, responsible for the overall strategy and programming of Aerosan. 

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Dianna Marini,  Program Manager

With a BSc in Cell Biology & Psychology and MSc Bioresource Engineering (McGill), Dianna draws on the disciplines of health, environment and social sciences to tackle complex problems. She has over six years of experience as an intrapreneur across various B2B industries, specializing in strategy and project management. Dianna is passionate about applying the social business model approach to address current health and environmental challenges. 


As Program Manager for Aerosan, Dianna is responsible for overseeing and planning the implementation of Aerosan's various projects, which integrate technological and business solutions to achieve social impact at scale. She also assists in communications and the development of strategic partnerships with the Aerosan Team. 

Prakash Amatya, Country Representative (Nepal) 

Prakash Amatya is recognized in the community in Nepal for his work in capacity building and knowledge transfer. He is also an advocate for the migrant and underprivileged urban community. Prakash has a diverse educational background holding a major in Microbiology, Environment and Business Management. He is experienced in promoting rainwater harvesting and freshwater conservation and approaches environmental issues from the perspective of the needs and limitations of businesses, municipalities and non-profit organizations.


Upon contributing to the development of urban water supply and sanitation policies that benefit the impoverished, Prakash worked on promoting awareness and compliance for sanitation policies in urban development. This enabled him to further his professional competence in the field of urban community development in order to improve the livelihood and dignity of waste workers in the Kathmandu Valley. Prakash has also played an instrumental role in establishing the Freshwater Action Network in South Asia (FANSA) and continues to raise to advocate at the regional and international level. Prakash continues to pursue his expertise in WaSH and urban development to find workable solutions for today’s problems. His professional background, inspiring leadership, optimism and personal humility have earned him a great reputation in the field.

As country representative of Aerosan in Nepal, Prakash oversees and manages local resources for program implementation. Prakash is also now the Chief Executive Officer of Aerosan Sustainable Sanitation Pvt Ltd, a social enterprise established in Nepal to implement the Aerosan HUB model. 

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