Gayatri Datar is the founder of EarthEnable, a Rwandan start-up. Gayatri is one of the five finalists of the Postcode Lottery Green Challenge 2017. A semester in college spent doing tsunami relief work in India led her to conclude that she wanted to spend the rest of her life making a difference. While at Stanford, she signed up for a class from the famous D School, Design for Extreme Affordability.


Sandra Rey from France is one of the five finalists of the Postcode Lottery Green Challenge 2017. After watching a documentary about bioluminescence, she had a vision of a world lit by an inexhaustible, living and eco-friendly light source. After a law was passed in France that forbids retailers to light their shop windows between 1:00 am and 7:00 am to limit light pollution and energy consumption, Sandra was inspired and co-founded Glowee.


Thomas Pedersen from Denmark is one of the five finalists of the Postcode Lottery Green Challenge 2017. His interest in composite materials started with a young boy’s interest in creating surfboards back in the 1980s. It was an age dominated by conventional production methods and with a limited focus on sustainable products.



Leila Janah is the founder and CEO of Samasource, an international social enterprise that connects marginalised people in Kenya, Uganda and India to digital work. Having served on the jury of the Postcode Lottery Green Challenge in 2013, this year she’s chairing it.



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