After some years researching cancer, Tom started his non-academic career at management consultants McKinsey & Company, where he worked across the private, public and non-profit sectors. He transitioned into the social enterprise space, first advising the CEO of Comic Relief on private sector matters and then working at (RED), the business founded by Bono and Bobby Shriver to help eliminate AIDS in Africa, where he was Managing Director for Europe and Director of Business Development for (RED) International. After this, he founded On Purpose, which is he still runs today. Tom is also the Chairman of Spice and an Advisory Board Member of Big Society Capital.