Re: [Trisquel-users] membership software for an association

[strypey]

Permaculture in NZ use CiviCRM, which has also been used by the Aotearoa/ NZ  
Greens. It has plug-ins for use with Drupal and WordPress as front ends.  
Probably other CMS too, but these are the ones I know about:
https://civicrm.org/