Friends of Seaford Library
National Trust Seaford Association
East Blatchington Pond

East Sussex Association for the Blind and The Inner Light Club
Civil Service Pensioners' Alliance
Neighbourhood Watch - Seaford
Royal Society of St. George - Seahaven Branch

Seaford Allotment and Leisure Gardens Society

Seaford Bonfire Society
Seaford Photographic Society
Seaford Little Theatre
Seaford Musical Theatre (Formerly Seaford and District Amateur Operatic Society)
Seaford and District Horticultural Society
St. James' Trust Previously Seaford Voluntary Association
The Royal Air Forces Association
Seaford Family Focus Group
Seaford Residents' Association
Seaford Seniors' Forum
Seaford in Bloom
Seaford U3A
Seaford Twinning Association Previously Friends of Bönningstedt
Seaford Area Women's Institutes
Seaford Choral Society
Seaford Natural History Society
Seaford Meetings of Sussex ME/CFS Society