These are all part of the Community Savings Bank Association (CSBA) which has developed a ‘bank in a box’ model. This allows the Greater Manchester Mutual to benefit from being part of a network of community banks.
Here are some good places to find out more about community banks in the UK:
The Community Savings Bank Association (CSBA) http://www.csba.co.uk/
New Economics Foundation (NEF) The Local Banking Toolkit https://neweconomics.org/uploads/files/NEF_LOCAL-BANKING-TOOLKIT.pdf
The Royal Society of Arts (RSA) https://www.thersa.org/discover/publications-and-articles/rsa-blogs/2018/11/a-regional-banking-revolution-for-the-21st-century and https://www.thersa.org/discover/publications-and-articles/reports/cashing-out
Marianne Sensier’s (2017) briefing paper from the Inclusive Growth Analysis Unit “Financing Inclusive Growth with a GM Community Bank”: http://hummedia.manchester.ac.uk/institutes/mui/igau/briefings/IGAU-Briefing-3-Regional-Banks.pdf
Jules Peck’s (Avon Mutual) blogs https://avonmutual.org/blog
Blog by Conrad Hall, Chief Finance Officer London Borough of Brent, giving a local authority perspective on investing in a community bank https://www.thersa.org/discover/publications-and-articles/rsa-blogs/2019/06/could-local-banks-help-tackle-financial-exclusion-and-support-small-business
Plans to create a North West mutual https://www.lgcplus.com/finance/exclusive-three-councils-in-the-north-west-plan-community-bank/7029275.article#.XQK6ZPKrk_4.twitter
A blog by Tony Greenham (South West Mutual) in City Metric
A report by Common Weal on ‘Better Banking – a Public Good Banking Network for Scotland’ published in September 2019 https://commonweal.scot/policy-library/better-banking-public-good-banking-network-scotland
A Report from the National Assembly for Wales Economy, Infrastructure and Skills Committee ‘Access to Banking’ http://www.assembly.wales/laid%20documents/cr-ld12818/cr-ld12818%20-e.pdf published in October 2019.