Health Community
- Bedfordshire, Luton and Milton Keynes Integrated Care Board (BLMK ICB)
- Bedfordshire Hospitals NHS Foundation Trust
- Buckinghamshire, Oxfordshire & Berkshire West Integrated Care Board
- Central and North West London NHS Foundation Trust
- NHS England: South East Diagnostics Programmes
- NHS England: Primary Care Transformation & Digital First
- NHS England & NHS Improvement, South East
- Oxford University Hospitals NHS Trust
- Oxford Health NHS Foundation Trust
- University Hospital Southampton NHS Foundation Trust
- South Central Ambulance Service
- Milton Keynes Clinical Commissioning Group
- Oxfordshire Clinical Commissioning Group
- Wandsworth Clinical Commissioning Group
- HCA International, London
- Hertfordshire Police Authority
- Buckinghamshire & Milton Keynes Health Community
- Buckinghamshire Primary Care Trust
- Derwent Shared Services
- Healthcare Commission
- Camden & Islington NHS Foundation Trust
- Connecting for Health
- NHS Information Authority
- Oxfordshire Health Informatics
- Oxfordshire Primary Care Trust
- Leicestershire Healthcare NHS Trust
- Lincolnshire Healthcare NHS Trust
- Milton Keynes Hospital NHS Foundation Trust
- Milton Keynes Primary Care Trust
- Nottinghamshire Healthcare NHS Trust
- University of Leicester NHS Trust
- St Mary's Hospitals NHS Trust
- The Royal Devon and Exeter NHS Foundation Trust
- Islington Primary Care Trust
- Kensington and Chelsea Primary Care Trust
- Moorfields Eye Hospital
- Oxfordshire Primary Care Trust
- Westminster Primary Care Trust
- Telford and Wrekin Primary Care Trust
- Melton and Rutland Primary Care Trust
- Bro Morgannwg NHS Trust
- North East Wales NHS Trust
- North West Wales NHS Trust
- Swansea NHS Trust
- North and Midland Cardiac Networks