DSI Leadership Alumni
- Heather Brown stepped down as Health Theme Lead in September 2025
 - Bran Knowles stepped down as Society Theme Lead in July 2025
 - Chris Kirkbride stepped down from the Foundations lead in Dec 2024
 - Robin Long left the RSErole in April 2024
 - Amber Leeson stepped down as Environment theme lead after 5 years
 - Karen Broadhurst was Society theme lead since 2018 and Co-Director since 2021
 - Bruce Hollingsworth was Health theme lead from 2019 - 2022
 - Adam Sykulski Environment Theme Deputy from 2015 - 2022
 - Jo Knight was Health theme lead from 2015-2019 and Co-Director from 2019, stepped down in 2021
 - Gordon Blair was the first Environment theme lead and stood down in December 2019
 - Idris Eckley began DSI with Nigel in 2015 and stood down as Co-Director in July 2019
 - David Leslie was the first Foundations Theme Lead from 2015 and stepped down 2018
 - Adrian Mckenzie was the first Society Theme Lead from 2015 and left the Institute in 2018