NHS Digital publishes Hospital and Community Health Services workforce statistics. These include staff working in hospital trusts and clinical commissioning groups, but not staff working in primary care, general practitioner surgeries, local authorities or other providers.
The following table shows the number of all staff at the mental health trusts specified as at September 2010, September 2019 and January 2020, the latest available data, full time equivalent.
Birmingham and Solihull Mental Health NHS Trust
South West London and St George's Mental Health NHS Trust
Suffolk Mental Health Partnership NHS Trust
Worcestershire Mental Health Partnership NHS Trust
Provider staff from Enfield Primary Care Trust were transferred to Barnet, Enfield and Haringey Mental Health NHS Trust in March 2011.
Greater Manchester West Mental Health NHS Foundation Trust acquired Manchester Mental Health and Social Care Trust to form Greater Manchester Mental Health NHS Foundation Trust in January 2017.
Suffolk Mental Health Partnership NHS Trust and Norfolk and Waveney Mental Health NHS Foundation Trust merged to become Norfolk and Suffolk NHS Foundation Trust in January 2012.
Worcestershire Mental Health Partnership NHS Trust and Worcestershire Primary Care Trust merged to form Worcestershire Health and Care NHS Trust in July 2011.