Build a
Waste-free World Finalist



A sanitation and waste management crisis is unfolding across the developing world as booming cities struggle with a deluge of waste. With urban centres outgrowing sewage systems, the world needs clean, cost-effective ways to process organic waste. Enter Sanergy.

Emerging economies generate two billion tons of solid waste each year, a figure set to increase.

Sanergy, based in Nairobi, proves it can be managed safely. Locally built, cost-effective dry toilets offer a clean and affordable alternative to sewers. The sanitation waste from slums and all other forms of organic waste from kitchens, agricultural pack houses and markets is safely removed, transported to Sanergy’s factory where it is consumed by black soldier fly larvae and converted to safe agricultural inputs sold to local farmers.

Sanergy serves 150,000 residents daily and removes 50,000 tonnes of waste per year. It also combats food insecurity. Sanergy’s organic fertilizer and insect protein for animal feed boosts farming volumes by up to 30%, helping over 5000 farmers meet the needs of expanding populations.

And they are on their way. Their series C funding closed successfully to allow them to scale up their fertilizer and animal protein production and to begin to expand internationally. The Earthshot Prize Global Alliance Members Deloitte and Arup have both been actively supporting across scaling, upskilling, and project design.


The Earthshot Prize