| 4 | Seaham Red Star Football Club | Pub/bar/nightclub | Durham | SR7 0JB |
| 5 | Seaham Sea Angling Club | Pub/bar/nightclub | Durham | SR7 7HD |
| 3 | Seaham Tandoori | Takeaway/sandwich shop | Durham | SR7 8NS |
| 4 | Seaham Trinity Nursery School | Hospitals/Childcare/Caring Premises | Durham | SR7 7SP |
| 5 | Seaham Trinity Primary School | School/college/university | Durham | SR7 7SP |
| Awaiting | Seaham Vape and convenience | Retailers - other | Durham | SR7 0HJ |
| 5 | Seaham Youth & Community Centre | Other catering premises | Durham | SR7 8QE |
| Exempt | Seaside Pharmacy | Retailers - other | Durham | SR7 7HF |
| 5 | Seaton Supply Stores | Retailers - other | Durham | SR7 0JL |
| 5 | Seaview Family Hub Outreach Centre | Hospitals/Childcare/Caring Premises | Durham | SR7 8PD |
| 5 | Seaview Primary School | School/college/university | Durham | SR7 8PD |
| 5 | Seaview Primary School Foodbank | Retailers - other | Durham | SR7 8PD |
| 5 | Sharpley Golf Centre | Restaurant/Cafe/Canteen | Durham | SR7 0NP |
| 5 | Shell Easington East | Retailers - other | Durham | SR7 8SS |
| 5 | Shell Easington West | Retailers - other | Durham | SR7 8SS |
| 5 | Slice | Takeaway/sandwich shop | Durham | SR7 7HE |
| 5 | Spar | Retailers - other | Durham | SR7 9JA |
| 5 | Spar | Retailers - other | Durham | SR7 0AE |
| Exempt | Sports Direct | Retailers - other | Durham | SR7 9HU |
| 5 | St Cuthbert's RCVA Primary School 3300 | School/college/university | Durham | SR7 0HW |
| 5 | St Hild & St Helen's Church | Hospitals/Childcare/Caring Premises | Durham | SR7 7NF |
| 5 | St Josephs Catholic Primary School | School/college/university | Durham | SR7 9RD |
| 5 | St Mary Magdalene's RCVA Primary School | School/college/university | Durham | SR7 7BJ |
| 5 | Stanley Street Independent Methodist Church | Other catering premises | Durham | SR7 0AU |
| 5 | Stapylton Steakhouse | Pub/bar/nightclub | Durham | SR7 8SD |
| Awaiting | Starz Theatre Cafe | Restaurant/Cafe/Canteen | Durham | SR7 0BL |
| 5 | Subway | Takeaway/sandwich shop | Durham | SR7 7DR |
| 4 | Suri's Store | Retailers - other | Durham | SR7 0HS |
| 5 | Suzie's | Restaurant/Cafe/Canteen | Durham | SR7 7EF |
| 5 | Swanton Care and Community Limited | Hospitals/Childcare/Caring Premises | Durham | SR7 7AB |
| 5 | Swanton Care and Community Limited | Hospitals/Childcare/Caring Premises | Durham | SR7 9RQ |
| 5 | Swanton Care and Community Limited | Hospitals/Childcare/Caring Premises | Durham | SR7 7BQ |
| 5 | Swanton Care and Community Limited | Hospitals/Childcare/Caring Premises | Durham | SR7 9RQ |
| 5 | Sweet Indulgence | Other catering premises | Durham | SR7 |
| 5 | Sweet Victorias sweet shop | Retailers - other | Durham | SR7 8NS |
| 4 | TCL Christmas | Restaurant/Cafe/Canteen | Durham | SR7 8ST |
| 5 | THE NOOK, Coffee & Crafts | Restaurant/Cafe/Canteen | Durham | SR7 8EL |
| 3 | TJ's Fish Shop | Takeaway/sandwich shop | Durham | SR7 0AQ |
| 3 | Tasty Spot | Takeaway/sandwich shop | Durham | SR7 8NS |
| 4 | Tazmanian Barbeque and Pizza | Takeaway/sandwich shop | Durham | SR7 7HF |
| 5 | Tesco | Retailers - supermarkets/hypermarkets | Durham | SR7 0HJ |
| 5 | Thai Green @ Seaham Golf Club | Restaurant/Cafe/Canteen | Durham | SR7 7RD |
| 5 | The Bake Kitchen | Other catering premises | Durham | SR7 |
| 4 | The Barn at The Mill | Pub/bar/nightclub | Durham | SR7 0HP |
| 5 | The Blow Lounge HQ / The Pamper Hut | Other catering premises | Durham | SR7 7EF |
| Awaiting | The Bread and Butter Thing | Retailers - other | Durham | SR7 7NH |
| 5 | The Co-Operative Food | Retailers - supermarkets/hypermarkets | Durham | SR7 9NX |
| 4 | The Coalface | Pub/bar/nightclub | Durham | SR7 7HE |
| 4 | The Coalhouse | Pub/bar/nightclub | Durham | SR7 7EJ |
| 5 | The Dancing Betty | Pub/bar/nightclub | Durham | SR7 9HU |