- Harlow
- Chelmsford
- Colchester
- Southend
- St Bartholomews and the Royal London Hospitals
- London Chest Hospital
- City and Hackney Hospital
- Homerton Hospital
- Mile End Hospital Tower Hamlets PCT
- St Clements Hospital East London
- Waltham Forest PCT
- Whipps Cross Hospital
- Plaistow Hospital Newham PCT
- Newham General Hospital
- Redbridge PCT
- Barking and Dagenham PCT
- Goodmayes Hospital NE London Mental Health
- King George Hospital
- Oldchurch Hospital
- Harold Wood Hospital
- St George's Hospital
- Mascalls Park