Brill Windmill is managed by The Brill Society, a registered charity set up in the 1970s, to protect and enhance the amenities and environment of Brill, and help residents and public enjoy and understand our heritage. To this end, (in normal times) the Society organises talks and visits, and publishes leaflets and books of local interest. The Society also makes an annual award to a local amenity, service or structure that has significantly enhanced the environment or otherwise contributed to community wellbeing.

Registered address: The Old Library, 19 Church Street, Brill, HP18 9RT
Telephone: 07881 950684
Email: chairman@thebrillsociety.org
​Register Charity Number: 1085234

The present Chairman of The Brill Society is Andy Fisher.