The original version was written jointly by union-coops:uk activists, Alex Bird, Pat Conaty, Mick McKeown, Cilla Ross, Simon Taylor and Anita Mangan in 2020, this is the fundamental document that lays out the case for fully unionised worker co-ops.
Re-edited and updated in July 2025, you can read it here:-
union-coops-uk Manifesto 2025