Here's a selection of past and present clients:

• Severn Vale Housing Society 
• 4NW - NW England Regional Leaders Board
  
• Gloucester City Homes 
• Westlea Housing Association
• Hampshire County Council
• Cambridgeshire County Council
• Bedfordshire County Council
• Cornwall County Council
• Swindon City Council
• Somerset County Council
• North Somerset Council
• Bristol City Council
• Derbyshire County Council
• Leicestershire County Council
• Devon County Council
• South Glos Council
• HGO Consultancy
• Dorset County Council (in collaboration with HGO)

Mark Duffill has also worked for: 

• Carrick Housing Ltd
• Shelter
• The National Housing Federation
• Stonham Housing Association