| 5 | The Royal Crescent Hotel | Restaurant/Cafe/Canteen | Bath and North East Somerset | BA1 2LS |
| 5 | The Royal High School (Junior School) | School/college/university | Bath and North East Somerset | BA1 2UZ |
| 4 | The Ryl Kitchens | Takeaway/sandwich shop | Wiltshire | BA12 9EF |
| 5 | The Salamander | Pub/bar/nightclub | Bath and North East Somerset | BA1 2JL |
| 5 | The Scallop Shell | Restaurant/Cafe/Canteen | Bath and North East Somerset | BA1 2AY |
| 4 | The Sepoy Club | Restaurant/Cafe/Canteen | Bath and North East Somerset | BA1 2EB |
| 5 | The Slow Vinegar Company | Retailers - other | Wiltshire | BA12 |
| Exempt | The Store Room - World Duty Free | Retailers - other | Wiltshire | BA12 7PU |
| 5 | The Trinity Pub | Pub/bar/nightclub | Bath and North East Somerset | BA1 2DA |
| 5 | The Urban Garden | Mobile caterer | Bath and North East Somerset | BA1 2LZ |
| 5 | The Walnut Tree Inn | Pub/bar/nightclub | Wiltshire | BA12 6BH |
| 3 | The Wellbeing Hub | Restaurant/Cafe/Canteen | Wiltshire | BA12 9AF |
| 4 | The Welly | Pub/bar/nightclub | Bath and North East Somerset | BA1 2JY |
| 4 | The White Hart | Pub/bar/nightclub | Wiltshire | BA12 7PH |
| Awaiting | The Wild Cook by Hettie Cuthbert | Manufacturers/packers | Wiltshire | BA12 |
| Exempt | The Willows Residential Home | Hospitals/Childcare/Caring Premises | Wiltshire | BA12 9JN |
| 5 | TheRuralLarder | Other catering premises | Wiltshire | BA12 |
| 5 | Thirsty Meeples | Restaurant/Cafe/Canteen | Bath and North East Somerset | BA1 2NT |
| 5 | Thomas Franks @ Warminster School | School/college/university | Wiltshire | BA12 8PJ |
| Exempt | Thomson Wild Venison | Manufacturers/packers | Wiltshire | BA12 |
| 4 | Thursday Lunch Club | Other catering premises | Wiltshire | BA12 9NP |
| 5 | Tops Day Nurseries | School/college/university | Wiltshire | BA12 9EZ |
| 5 | Travelodge | Hotel/bed & breakfast/guest house | Bath and North East Somerset | BA1 2EB |
| Exempt | Travelodge | Hotel/bed & breakfast/guest house | Wiltshire | BA12 7RU |
| 5 | Treatbox Delights | Other catering premises | Wiltshire | BA12 |
| Exempt | Treatzy sweets | Retailers - other | Wiltshire | BA12 |
| 4 | Treetop Cafe | Restaurant/Cafe/Canteen | Bath and North East Somerset | BA1 2NR |
| 5 | Two Crescent Gardens | Hotel/bed & breakfast/guest house | Bath and North East Somerset | BA1 2NA |
| Exempt | Tytherington Bakehouse | Manufacturers/packers | Wiltshire | BA12 |
| 3 | UK Hemp Ltd | Manufacturers/packers | Wiltshire | BA12 8LT |
| Exempt | Vanguard Tactics LTD | Restaurant/Cafe/Canteen | Wiltshire | BA12 8GL |
| 5 | Wagamama | Restaurant/Cafe/Canteen | Bath and North East Somerset | BA1 2EB |
| 5 | Waitrose | Retailers - supermarkets/hypermarkets | Wiltshire | BA12 9BR |
| Exempt | Waltons of Mere | Retailers - other | Wiltshire | BA12 6DD |
| Exempt | Warminster And District Foodbank | Distributors/Transporters | Wiltshire | BA12 9AL |
| 5 | Warminster Bright Beginnings | Hospitals/Childcare/Caring Premises | Wiltshire | BA12 0BY |
| 5 | Warminster Community Hospital | Hospitals/Childcare/Caring Premises | Wiltshire | BA12 8QS |
| 5 | Warminster Conservative Club | Pub/bar/nightclub | Wiltshire | BA12 9LB |
| Exempt | Warminster Country Market | Retailers - other | Wiltshire | BA12 |
| 5 | Warminster Greggs | Retailers - other | Wiltshire | BA12 7RU |
| 5 | Warminster Rugby Club | Pub/bar/nightclub | Wiltshire | BA12 7RG |
| Exempt | Warminster Town Football Club | Pub/bar/nightclub | Wiltshire | BA12 9NS |
| 5 | Wessex Lodge School | School/college/university | Wiltshire | BA12 7HJ |
| Exempt | West Parade Stores | Retailers - other | Wiltshire | BA12 8LZ |
| 5 | West Wiltshire Golf Club | Pub/bar/nightclub | Wiltshire | BA12 0AU |
| Exempt | Westway House Solent | Hospitals/Childcare/Caring Premises | Wiltshire | BA12 |
| 5 | Wm Morrison Supermarkets Limited | Retailers - supermarkets/hypermarkets | Wiltshire | BA12 9NT |
| 5 | Woods Restaurant | Restaurant/Cafe/Canteen | Bath and North East Somerset | BA1 2QX |
| 5 | Wren House Care Home | Hospitals/Childcare/Caring Premises | Wiltshire | BA12 8JF |
| 5 | Wylye Coyotes Afterschool Club CIC | Hospitals/Childcare/Caring Premises | Wiltshire | BA12 0PN |