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- Safe Steps
- Shoeburyness Leisure Centre
- Simply Stride
- Sober Socials
- Somewhere to Turn Facebook Peer support service
- South East Essex Group of Ramblers Association
- South East Essex Type 1 (SEET1) Diabetes UK Family Group
- South Essex Advocacy Services
- Southend Foodbank
- Southend in Transition Community Allotment
- Southend Leisure and Tennis Centre
- Southend Stop Smoking Service 'Smokefree Southend'
- Southend Treatment And Recovery Service (STARS)
- SPDNS Nail Trimming Service (feet)
- Start 4 Life
- Storehouse Southend
- Stroke Survivors Support Group