The Hymn Society of Great Britain and Ireland – hymnsocietygbi.org.uk
The Hymn Society in the United States and Canada – thehymnsociety.org
Sacristy Press – Sacristy.co.uk
Stainer & Bell – Stainer.co.uk
West Gallery Music Association – wgma.org.uk
Immanuel’s Ground – immanuelsground.com
With Cheerful Voice – https://www.withcheerfulvoice.org.uk/