Simon is a Co-founder of Diversity by Design and author of the report Diversity – the new prescription for the NHS. He was a Co-founder of Stonewall and the Kaleidoscope Trust, supporting LGB&T activists abroad.
He was also Chairman of Sussex University, a Non-Executive Director of Housing & Care 21, and a Governor of the Museum of London. He is currently on the boards of Powerful Women and Brighton Dome & Festival. Simon was awarded an OBE in 2013 for services to higher education and made an Honorary Doctor of the University of Sussex for services to diversity and human rights.