| Judith Hart Jewellers | Jewellery store | 155 East Mall | Mon–Wed 09:00–18:00 |
| Justice Security | Fire protection consultant | 128 Green Ln | Daily Open 24 hours |
| K & B First Choice | Designer clothing shop | Blagreaves Ln | Daily Open 24 hours |
| Kaspa Ves | Valeting service | Business Park, Unit 3 Elton Rd | Daily Open 24 hours |
| Kave Desserts Café® | Dessert restaurant | 10 Liversage St | Tue–Thu 17:00–01:00 |
| Kool Car | Auto air conditioning service | 2 Verbena Dr | Daily 09:00–17:00 |
| KPD Sounds - Wedding & Corporate Disco hire. | Mobile disco service | 67 Kimberley Rd | Sun 08:00–20:00 |
| Krishna Sweet Centre | Indian takeaway | 71 St Thomas Rd | Mon 11:00–19:00 |
| Kubo Wellness | Wellness centre | 29 Bridgeside Way | Daily 09:00–20:00 |
| Lady Penelope's Vintage Crockery Hire | Catering equipment rental service | 36 Brook Rd | Mon–Thu 09:00–19:00 |
| Lee Kitchen Derby | Chinese takeaway | 32 Duffield Rd | Mon 16:30–22:30 |
| Littleover Methodist Church | Methodist church | Constable Dr | Wed–Fri 09:00–14:00 |
| Lock House Cafe at Stenson | Tea and coffee shop | Stenson Rd | Mon–Sat 08:30–14:30 |
| Lorentes Derby | Tapas bar | 118 Friar Gate | Tue–Thu 16:00–22:00 |
| Luxury eBoutique | Watch shop | 19 St Christopher's Way | Daily Open 24 hours |
| Mahers Tawa Grill and Karahi | Halal restaurant | B, Rosehill Business Centre, Normanton Rd | Daily 17:00–00:00 |
| Makeup by Sophie Downing | Make-up artist | Slade Lands Dr | Daily 08:00–18:00 |
| Marion House | Assisted living residence | 5 Central Ave | Daily Open 24 hours |
| Matthew Jones Photography | Photographer | Banks Mill Studios, 71 Bridge St | Mon–Fri 08:00–18:30 |
| McTurks Catering Supplies Ltd | Catering supplier | 134 Holcombe St | Mon–Sat 09:00–17:00 |
| Mehmet builders | Garden | 89 Oaklands Ave | Daily 07:00–21:00 |
| Mercedes-Benz and smart of Derby | Mercedes-benz dealer | 7 St Christopher's Way | Mon–Fri 08:00–18:30 |
| Mercia Marina | Marina | Findern Ln | Daily 09:00–17:30 |
| Midco Toy Planet | Toy shop | Unit 126, Level 1, Derbion Shopping Centre, London Rd | Mon–Wed 09:00–18:00 |
| Minibus And Coach Taxi Hire | Derby | | Transportation service | Wilfred St | Mon–Sat 07:00–18:00 |
| Mobile Games Exchange | Mobile phone shop | 28 London Rd | Mon–Sat 09:30–17:30 |
| Mobile Hub Derby | Mobile phone repair shop | 859 Osmaston Rd | Mon–Sat 09:00–18:00 |
| Monmu's Derby | Restaurant | 167 London Rd | Mon–Thu 17:00–00:00 |
| MoonSha Japanese Bar and Restaurant | Japanese restaurant | 4 Friary St | Tue–Thu 15:00–22:00 |
| Moorways Sports Village and Water Park | Swimming pool | Moor Ln | Mon–Fri 05:30–22:00 |