"Graham is an extremely personable and highly knowledgeable professor who demands the best out of his students. The exercises and lectures provided interesting insight into the new and exciting field of sustainable investment." MBA student, Top 10 US Business School

"Graham is as passionate about sustainability as he is about emerging markets and the African continent in particular. He is a very hard worker who sets about his tasks with enthusiaism and creativity.Those qualities were instrumental in ensuring a sizeable contingent of signatories to the PRI in South Africa within a relatively short space of time." CEO, African financial innovation advisory firm

"Graham is a bright, talented and knowledgeable individual. His passion and enthusiasm for the UN PRI work was inspiring. Graham is results-oriented and an effective communicator. It was a pleasure working with him." West Coast Director, top-5 US based institutional pensions and investment consultant.

"Graham is a fine individual who carries contagious level of energy and enthusiasm. He has a very professional approach to work and great commitment to the integration of environmental, social and governance factors into mainstream business." Project Manager, UN Environment Programme.