• Policy Committee, Advisory Group, The Vegan Society, UK (2016)
• Advisory Board, Centre for Human Animal Studies, Edge Hill University, UK (2014)
• Executive Director, Minding Animals International (2012-present)
  Steering Committee Member for Minding Animals 2 Conference at University of Utrecht (2012), Minding Animals 3 Conference at Jawaharlal Nehru University, New Delhi (2015), and Minding Animals 4 Conference at Mexican National University in Ciudad de México (2018)
• Committee member, Hastings Old Town Residents Association, Hastings, UK (2010-2013)
• Founding President and Director, Canton Community Association, Baltimore, USA (2001-2003)
• Chair, Canton Community Association Dog Park Committee (2001-2003)
• Chair, Summit for the Animals (1997-1998) [Now National Council for Animal Protection]
• Executive Committee, Summit for the Animals (1996-1999)
  National Council Member, RSPCA (1984)
• Chair, The National Council, The Vegan Society UK (1983-1984
• Member of the National Council, The Vegan Society UK (1982-1984)
• Cofounder and Chair, Coordinating Animal Welfare (1978-1984)