Lowland Rescue
Norfolk
Suffolk
Cambridgeshire
Midshires (Herts, Beds)
Berkshire
Buckinghamshire
Kent
Sussex
Surrey
Hampshire
Dorset
Wiltshire
Oxfordshire
Staffordshire
Cheshire
Lincs & South Yorkshire
West Midlands (Here, Worcs, Shrops)
Northern Ireland
Northamptonshire
Merseyside
Warwickshire
Isle of Wight
Leicestershire
Nottinghamshire

Essex Police
Essex County Fire & Rescue
Essex County Council

Mountain Rescue Council
Scottish Mountain Rescue
British Cave Rescue Council

NSARDA
SARDA England
SARDA Ireland
SARDA Lakes
SARDA Scotland
SARDA South Scotland
SARDA Cymru/Wales
SARDA South Wales
SARDA Isle of Man

Berkshire SAR Dogs
Bucks Search Dogs
Dorset Search Dogs
NSARDA Anglia
Louth Search Dogs
British International Rescue Dogs

UK Lowland Search Institute
Centre for Search Research
- produces the 'missing person behaviour report'

International SAR Alliance
National Association for Search and Rescue (USA)
National Search Secretariat (Canada)
Rapid UK
International Rescue Corps (UK)
Action d'Urgence Internationale (France)
Emergency Response International (UK)