Gert-Jan Sikking is a senior advisor Responsible Investment at pension asset manager PGGM. He focusses a.o. on measuring and reporting the environmental and societal impact of the global investment portfolio. He is involved by several international initiatives around impact measurement. Before that, Gert-Jan was heading the innovation activities at PGGM. Earlier on he worked at NIBC in the Treasury and Risk Management departments. Gert-Jan is also involved in several Social Entrepreneurial initiatives in The Netherlands.