The SNU is a membership organisation that is primarily run and managed by its membership at every level, all of whom do so voluntarily. There are a small number of supporting employees who work at the Head Office in Stansted along with the management and staff at the Arthur Findlay College and Barbanell Conference Centre.
Maintaining a two way communication in an organisation that has individual members and organisational members all over the UK and some overseas is always a difficult task. Trying to carry the dialogue and manage the activities of the organisation from the directors and committees to the membership and back again, requires a structure for communication and participation to be in place. Equally the day to day work on the many facets of the SNU in providing its members and the public access to the many services available such as education, training, healing, awards, general support and administration at every level, relies upon the vast army of volunteers and small number of employees working closely together. The SNU, as a member’s organisation, is run by around 300 volunteers who work together to provide all the services and support
To achieve the aims of the SNU in its work and communication, the organisation has a structure that is know as the 'Three Tier System'. The aim of this system is to provide two way channels for the voice of the membership to reach the directors and the return of direction and support from the directors and committees of the SNU, as a management team, back to the membership.