1. Ranbaxy Laboratories Ltd.(For a book on Sálim Ali): 2007
2. Kalpana Trust, Chennai (Project for Yerrangadu Arboretum): 2008-2012
3. Mohamed Bin Zayed Species Conservation Fund (Project on Andaman Teal):2012-13.
4. Madras Crocodile Bank Trust/Herpetological Conservation Research Fund: 2013-14
5. Government of Kerala (For Sustainable Development of Vellangallur Panchayat)
6. Department of Environment & Climate Change: 2016-18
7. Department of Fisheries: 2016 onwards
8. Department of Agriculture: 2019-20
9. Kerala State Council for Science Technology & Environment: 2018 -19
10. Department of Science & Technology: 2019-21
11. Energy Management Centre Kerala: 2019-20
12. Manappuram Foundation (CSR): 2014 onwards (for Vellangallur project)
13. Vellangallur Panchayat: 2014 (”)
14. Cognizant Outreach: 2019-20 ( ”)
15. Cochin Shipyard Ltd.(CSR): 2018 onwards (“)
16. Digital Core Technologies (CSR): 2021 onwards (“)
17. Friends & Well-wishers for flood relief & farming (Crowdsourcing): 2018-19 (”)
18. UNDP-India (Project in Idukki for Sustainable Farming): 2020-21