| 5 | Sizzles Takeaway | Takeaway/sandwich shop | Causeway Coast and Glens | BT47 4TD |
| 5 | Slush it | Mobile caterer | Causeway Coast and Glens | BT47 |
| 5 | Slush patrol | Other catering premises | Derry City and Strabane | BT47 4FB |
| 3 | Smak Pol Ltd | Retailers - other | Derry City and Strabane | BT47 6AH |
| 5 | Smash n Bird | Takeaway/sandwich shop | Derry City and Strabane | BT47 6AP |
| 5 | Solo Restaurant | Restaurant/Cafe/Canteen | Derry City and Strabane | BT47 3XX |
| 5 | Somme Park Clanmil Housing | Hospitals/Childcare/Caring Premises | Derry City and Strabane | BT47 2NG |
| 5 | Sona Coffee | Mobile caterer | Derry City and Strabane | BT47 |
| 5 | Spar | Retailers - other | Derry City and Strabane | BT47 3UB |
| 5 | Spar | Retailers - other | Derry City and Strabane | BT47 3QG |
| 5 | Spar Church Meadows | Retailers - other | Derry City and Strabane | BT47 6DE |
| 4 | Spar Feeny | Retailers - other | Causeway Coast and Glens | BT47 4TD |
| 4 | Spar Minimarket | Retailers - other | Derry City and Strabane | BT47 4HR |
| 5 | Sperrin Fun and Heritage Farm | Restaurant/Cafe/Canteen | Derry City and Strabane | BT47 4TG |
| 5 | Sperrin View Bar | Pub/bar/nightclub | Causeway Coast and Glens | BT47 4TD |
| 5 | Spesiaalbakes | Other catering premises | Derry City and Strabane | BT47 |
| 3 | Spiceland | Importers/Exporters | Derry City and Strabane | BT47 6AN |
| 5 | Spiral Soul Apothecary | Other catering premises | Derry City and Strabane | BT47 |
| Exempt | Sports Direct | Restaurant/Cafe/Canteen | Derry City and Strabane | BT47 6SA |
| 5 | St Canice's Primary School | School/college/university | Causeway Coast and Glens | BT47 4SE |
| 5 | St Canice's Primary School Meals Kitchen | School/college/university | Causeway Coast and Glens | BT47 4TW |
| 5 | St Canices GAC Club House & Grounds | Restaurant/Cafe/Canteen | Causeway Coast and Glens | BT47 4LT |
| 5 | St Colmcille's Primary School | School/college/university | Derry City and Strabane | BT47 4HR |
| 5 | St Columba's Primary School Dining Centre | School/college/university | Derry City and Strabane | BT47 2QS |
| 5 | St John's Primary School Meals Kitchen | School/college/university | Causeway Coast and Glens | BT47 4PN |
| 5 | St Mary's Altinure Primary School | School/college/university | Derry City and Strabane | BT47 4DP |
| 5 | St Oliver Plunkett Primary School | School/college/university | Derry City and Strabane | BT47 6XA |
| 5 | St Patrick's & St Brigid's College | School/college/university | Derry City and Strabane | BT47 4HR |
| 5 | St Peter's & St Paul's P S Meals Kitchen | School/college/university | Causeway Coast and Glens | BT47 4PJ |
| 5 | Star bakes | Other catering premises | Derry City and Strabane | BT47 |
| 5 | Starbucks Coffee Company | Restaurant/Cafe/Canteen | Derry City and Strabane | BT47 5FX |
| 5 | Station 4 Kitchen | Mobile caterer | Causeway Coast and Glens | BT47 |
| 4 | Steffs Fast Food Takeaway | Takeaway/sandwich shop | Derry City and Strabane | BT47 2PU |
| 5 | Stepping Stones Day Nursery | Other catering premises | Derry City and Strabane | BT47 6BG |
| 5 | Stitch & Weave | Restaurant/Cafe/Canteen | Derry City and Strabane | BT47 6FA |
| 5 | Straidarran Community Playgroup | Other catering premises | Derry City and Strabane | BT47 4BT |
| 4 | Strathfoyle Community Association | Other catering premises | Derry City and Strabane | BT47 6XP |
| 5 | Strathfoyle Nursery School | School/college/university | Derry City and Strabane | BT47 6UP |
| 5 | Strathfoyle Womens Activity Group | Other catering premises | Derry City and Strabane | BT47 6XP |
| 5 | Strathfoyle Youth Centre | Retailers - other | Derry City and Strabane | BT47 6XL |
| 5 | Subway | Restaurant/Cafe/Canteen | Derry City and Strabane | BT47 6SA |
| 5 | Subway Lisnagelvin | Restaurant/Cafe/Canteen | Derry City and Strabane | BT47 6DF |
| 3 | Sunrise Takeaway | Takeaway/sandwich shop | Derry City and Strabane | BT47 4BH |
| 5 | Supervalu Dungiven | Retailers - supermarkets/hypermarkets | Causeway Coast and Glens | BT47 4LT |
| Exempt | Supervalu Eglinton off license | Retailers - other | Derry City and Strabane | BT47 3PQ |
| 3 | Surf N Turf Food Co Ltd | Distributors/Transporters | Derry City and Strabane | BT47 5AB |
| 5 | Susan's sweet treats | Other catering premises | Derry City and Strabane | BT47 |
| 5 | Suzy's Chippy and Diner | Takeaway/sandwich shop | Derry City and Strabane | BT47 2LS |
| 5 | Sweet Peas Creche - POD 15 | Other catering premises | Derry City and Strabane | BT47 3QP |
| 5 | Sweet as Adia | Other catering premises | Causeway Coast and Glens | BT47 |