People of the Institute

Sasha Mentz-Lagrange
Senior Researcher

Sasha is an independent researcher and consultant with over 12 years of experience in the field of sustainable development and climate change.

Shaun Claasen
IT and Health & Safety Coordinator

Shaun is the IT Administrator, providing desktop and technical support. He holds a Diploma in A+ Computer Technician and N+ Computer networking from CTU training solution in Stellenbosch, and Operations Management Diploma from Correspondence Training Academy.

Thandiwe Mtyingizani
AgroEcology Young Farmer

Thandiwe is one of our AgroEcology Young Farmers.

Theo Oldjohn
Programme Director: AgroEcology

Theo heads up our AgroEcology Academy.

Tuliswa Somta
Maintenance Agent - iShack

Tuliswa conducts preventative maintenance and responds to maintenance calls - involving anything from replacing a broken fuse to following technical troubleshooting protocols.

Vanessa von der Heyde
Managing Director: Institute Programmes

Vanessa von der Heyde did her MPhil through the SI in 2013 and was so inspired by this life-changing journey that she graduated with a burning desire to not only be a changemaker herself, but also enable others to be changemakers in working towards a more equitable, inclusive and resilient world. 

Vuyolwethu Zicina
AgroEcology Young Farmer

Vuyolwethu is one of our AgroEcology Young Farmers. 

Yoliswa Mahobe

Yoliswa is the Permaculture expert at the Sustainability Institute. She loves beauty, nature, food and people. That love has been a journey of discovery and has enabled her to reconnect with Agriculture in a holistic way. 

Zintle Gqoloza
Digital & Communication Assistant

Zintle joined the Sustainability Institute in 2019 and assists with the Institutes digital platforms and communication.