Virtually every organisation is in the sustainability business today – which has become a new minimum in attracting and retaining customers. To make transformation happen, businesses will need to reinvent themselves. This white paper focusses on the transformation that is needed within organisations to make change happen and how organisations can increase their maturity level when it comes to sustainability themes. Based on our interviews with sustainability officers from a wide variety of companies, we zoom in on the importance of leadership – and, more specifically, of responsible leadership.