ARCTU has nine NHS partner Trusts.
Basildon and Thurrock University Hospitals NHS Foundation Trust primarily serves a 405,800 population in south-west Essex covering Basildon and Thurrock, together with parts of Brentwood and Castle Point.
The Essex Cardiothoracic Centre is also part of the Trust, providing a full range of tertiary cardiothoracic services for the whole county and further afield.
East and North Hertfordshire NHS Trust comprises of four hospital sites; Hertford County hospital, Hertford; The Lister hospital, Stevenage; Mount Vernon Cancer Centre, Northwood; and The QEII hospital, Welwyn Garden City.
Hinchingbrooke Health Care NHS Trust provides high quality health care for the people of Huntingdonshire and surrounding areas. More than 160,000 people rely on the hospital for a range of services.
Mid Essex Hospital Services NHS Trust provides a comprehensive range of acute and community based services to a local population of approximately 371,000.
It also provides regional upper gastrointestinal (upper GI) surgical services, a national profile plastics service and regional head and neck services, in addition to a supra regional burns service (St Andrew's centre for plastic surgery and burns).
The South Essex Partnership University NHS Foundation Trust (SEPT) is one of the most successful Foundation Trusts in the country providing integrated care including mental health, learning disability, social care and community services.
SEPT provides services for a population of approximately 2.5 million people throughout Bedfordshire, Essex and Luton.
Southend University Hospital NHS Foundation Trust provides acute services from its main Prittlewell Chase site and at outlying satellite clinics across the region. With nearly 700 inpatient beds, alongside its outpatient services, the Trust serves a local population of 338,800.
They provide a comprehensive range of acute services including acute medical and surgical specialties, general medicine, general surgery, orthopaedics, ear, nose and throat, ophthalmology, cancer treatments, renal dialysis, obstetrics and gynaecology and children's services.
The Princess Alexandra Hospital NHS Trust is located in Harlow, Essex and is a 489 bedded District General Hospital providing a comprehensive range of safe and reliable acute and specialist services to a local population of 258,000 people.
West Hertfordshire Hospitals NHS Trust provides acute healthcare services to a core catchment population of approximately half a million people living in west Hertfordshire and the surrounding area. The Trust also provides a range of more specialist services to a wider population, serving residents of North London, Bedfordshire, Buckinghamshire and East Hertfordshire.