Demian oversees relations between S&P Global Mobility and the financial and investment sector. His areas of focus span production and demand forecasting, electrification, decarbonisation, and mobility services. He has 15 years of equity research experience at various investment banks, and prior to joining S&P Global Mobility was an automotive analyst at Goldman Sachs and subsequently head of automotive research at Commerzbank. He is a regular presenter to financial investors and other interest groups, and his views and analysis have often been cited in the financial media.

Demian holds a postgraduate degree from UMIST and an undergraduate degree from St. Peter's College, Oxford.