| 5 | Kettering Park Hotel | Hotel/bed & breakfast/guest house | North Northamptonshire | NN15 6XT |
| 5 | Kettering Rugby Football Club | Pub/bar/nightclub | North Northamptonshire | NN15 6NT |
| 5 | Kettering Science Academy | School/college/university | North Northamptonshire | NN15 7AA |
| Awaiting | Kettering Sports Park | Pub/bar/nightclub | North Northamptonshire | NN15 6PB |
| 5 | Kettering Town Cricket & Sports Club | Pub/bar/nightclub | North Northamptonshire | NN15 7JT |
| 5 | Kettering Town Football Club | Pub/bar/nightclub | North Northamptonshire | NN15 5PS |
| 5 | Kettering Town Harriers | Pub/bar/nightclub | North Northamptonshire | NN15 6PB |
| 5 | Kettonby Care | Hospitals/Childcare/Caring Premises | North Northamptonshire | NN15 6BT |
| 5 | Kids Planet Day Nursery | Hospitals/Childcare/Caring Premises | North Northamptonshire | NN15 7PH |
| 5 | Kidsstop | Hospitals/Childcare/Caring Premises | West Northamptonshire | NN1 5JS |
| 5 | Kingswood Education Catering | School/college/university | North Northamptonshire | NN15 5BZ |
| 5 | Kingswood Education Catering | School/college/university | North Northamptonshire | NN15 7HT |
| 5 | Konyin Drinks | Other catering premises | North Northamptonshire | NN15 |
| 5 | Kushboo | Restaurant/Cafe/Canteen | North Northamptonshire | NN15 5LB |
| 5 | Latimer Spice | Takeaway/sandwich shop | North Northamptonshire | NN15 5LB |
| 5 | Lemon Tree Cafe | Mobile caterer | North Northamptonshire | NN15 5PS |
| 5 | Lifestyle Care Support | Hospitals/Childcare/Caring Premises | North Northamptonshire | NN15 7HL |
| 5 | Lilly House | Hospitals/Childcare/Caring Premises | North Northamptonshire | NN15 6RZ |
| 5 | Little Learners Childcare | Hospitals/Childcare/Caring Premises | West Northamptonshire | NN1 5BG |
| 5 | Little Sandwich Shop | Takeaway/sandwich shop | North Northamptonshire | NN15 7DQ |
| Exempt | Lloyds Pharmacy | Retailers - other | North Northamptonshire | NN15 7HP |
| 1 | Londis | Retailers - other | West Northamptonshire | NN1 5LY |
| 5 | London Road Craft Bakery | Other catering premises | North Northamptonshire | NN15 7QA |
| 5 | Love Food JM Ltd @ Kingsley Special Academy | School/college/university | North Northamptonshire | NN15 5DP |
| 5 | Lucerne House | Hospitals/Childcare/Caring Premises | North Northamptonshire | NN15 6TE |
| 5 | Lyla May Cakeaway | Other catering premises | North Northamptonshire | NN15 |
| 5 | M & B Local | Retailers - other | North Northamptonshire | NN15 7DQ |
| 5 | M A Coales Family Butchers Ltd | Retailers - other | North Northamptonshire | NN15 7HT |
| 5 | M D's Fish Bar | Takeaway/sandwich shop | North Northamptonshire | NN15 6NQ |
| 5 | M&B Food Box | Mobile caterer | North Northamptonshire | NN15 |
| 3 | Malabari | Restaurant/Cafe/Canteen | West Northamptonshire | NN1 5QH |
| 5 | Mama Aggies Cookies and Cakes | Other catering premises | North Northamptonshire | NN15 |
| 5 | Mark Four Bakes | Other catering premises | North Northamptonshire | NN15 |
| 5 | Marks and Spencer Simply Food | Retailers - other | West Northamptonshire | NN1 5BD |
| 5 | Masque Theatre | Pub/bar/nightclub | North Northamptonshire | NN15 6SW |
| 5 | McDonalds | Restaurant/Cafe/Canteen | North Northamptonshire | NN15 5ZW |
| 5 | McDonalds | Restaurant/Cafe/Canteen | North Northamptonshire | NN15 6NL |
| 5 | Meadowside After School Clubs | Hospitals/Childcare/Caring Premises | North Northamptonshire | NN15 5QY |
| 5 | Meadowside Primary School | School/college/university | North Northamptonshire | NN15 5QY |
| 5 | Meatcraft | Manufacturers/packers | West Northamptonshire | NN1 5HA |
| 5 | Medirest Healthcare - Compass Group | Restaurant/Cafe/Canteen | West Northamptonshire | NN1 5DR |
| 5 | Mel's Magic Oven | Other catering premises | North Northamptonshire | NN15 |
| 5 | Methodist Church Hall | Other catering premises | North Northamptonshire | NN15 5SG |
| 5 | Milo Cake Charms | Other catering premises | North Northamptonshire | NN15 |
| 4 | Monica Ozdemir | Other catering premises | North Northamptonshire | NN15 |
| 5 | Morrisons Daily | Retailers - other | West Northamptonshire | NN1 5PH |
| 4 | Morrisons Supermarkets Plc (canteen) | Restaurant/Cafe/Canteen | North Northamptonshire | NN15 5YT |
| Exempt | Mr Whippy | Other catering premises | Milton Keynes | NN1 5BT |
| 5 | My Indian Kitchen | Other catering premises | North Northamptonshire | NN15 |
| 4 | N'pton Conservative Club | Restaurant/Cafe/Canteen | West Northamptonshire | NN1 5DA |