- A: A to Z of records
- C: A to Z of records
- F: A to Z of records
- M: A to Z of records
- N: A to Z of records
- P: A to Z of records
- R: A to Z of records
- S: A to Z of records
- T: A to Z of records
- U: A to Z of records
- V: A to Z of records
- W: A to Z of records
- Y: A to Z of records
- Safe Steps
- Safeguarding and Child Protection (Southend-on-Sea)
- Southend Association of Voluntary Services (SAVS)
- Southend Foodbank
- Southend Mencap Advocacy Service
- Southend Neighbourhood Watch
- Southend Treatment And Recovery Service (STARS)
- Southend Vineyard
- Storehouse Southend
- Stronger Families, Future Communities (BLIF/Family Action)