Simon is CEO of mental health social enterprise, Mental Health First Aid England, deputy Chair of LGBT Charity, Stonewall, and Chair of Headspace's International Advisory Board. He is co-founder of the new collective focus on preventing men's violence called #YesAllMen. He was awarded an OBE for services to the voluntary sector and young people and is one of the founders of the campaign to change the name of the British Honours Systems from Empire to Excellence.

Simon is a reluctant runner, a dog lover (with a dog called Dolly) and an amateur eventer who probably falls off too often (with a horse called Boris.