[22] Later, attention began to focus on applications in the developing world in 2009-2012 through the Sanitation Ventures project at the London School of Hygiene and Tropical Medicine (LSHTM) funded by a grant from the Bill & Melinda Gates Foundation.
Colin Bell provided the design[21] and technical development was led by Claire Furlong in collaboration with Professor Michael Templeton of Imperial College London,[23][24] and was carried out at the Centre for Advanced Technology (CAT) in Wales.
[25] By the end of the project, the team had built a usable prototype at CAT,[1] determined key operating parameters[2][26] and shown that there was consumer interest.
In parallel with the LSHTM work and also with Bill and Melinda Gates Foundation funding, Biofilcom (under Kweko Annu) developed a vermifilter toilet which has been commercialised in Ghana and Bangladesh.
Development of the GSAP (Ghana Sustainable Aid Project) Microflush vermifilter toilet was also funded by the Bill and Melinda Gates Foundation.
This work was carried out in partnership with Oxfam (humanitarian relief camp, Myanmar), Water for People (peri-urban, Uganda) and PriMove (rural, India).
In 2018 Bear Valley Ventures and PriMove set up TBF Environmental Solutions Pvt Ltd[12] to commercialise the Tiger Toilet and related technologies.