For general enquiries, email us here.


Press Officer: 07951 834771or email the press officer here.

For membership enquiries email the membership officer here.

For Local Groups: email the contacts officer here.

Salesgoods: email the merchandise officer here.


PGP: Click here to download our PGP public key if you wish to send us encrypted data.

By Mail: BM HSA, London, UK. WC1N 3XX

By Telephone (+44) 0845 2501291


Cheques need to be payable to the HSA please and sent to: BM HSA, London, UK. WC1N 3XX 


If you have sent a membership request, salesgoods order or a donation by mail to us recently please be patient with our response as we rely on a forwarding system to distribute paperwork to the relevant volunteers that deal with these areas and there is therefore a delay involved.

This site is not administered from our office address above, so if you want leaflets or posters etc, please arrange via the telephone or we can forward emails for you.  The HSA does not have paid staff, and the volunteers we do have also have full time 'normal' jobs, so don't expect the impossible!