| Ark Relocation | Removals company | Ste 3b, South House, Bond Est, Bond Ave | Thu 07:30–18:30 |
| Arts Central | Art studio | 18-20 Burners Ln | Daily Open 24 hours |
| ASA Medical Solutions Ltd | Nursing agency | 620 Foxhunter Dr | Mon–Thu 08:30–17:30 |
| Ashland Engineering Ltd | Fabrication engineer | 23 Erica Rd | Mon–Thu 08:00–16:30 |
| Asplands Medical Centre | Public medical centre | Asplands Medical Centre, Wood St, Asplands Cl | Mon–Fri 08:00–18:30 |
| AtoZ Design car wrapping | Vehicle wrapping service | Unit 9, Galley Lane Farm Galley Lane | Mon–Fri 09:00–18:00 |
| Aura Flooring Limited | Flooring shop | Unit 4 Clarendon Dr | Mon–Fri 08:30–17:00 |
| Authentic Media | Book publisher | 6326 Bletchley | Mon–Fri 09:00–17:00 |
| Auto-Stable Motormovers Limited | Transportation service | Unit 4B, Pineham Farm | Mon–Fri 09:00–18:00 |
| Autocure Repairs & Diagnostics LTD | Diagnostic centre | Unit 10, Hounslow Hall Estate | Mon–Fri 08:00–17:00 |
| Autolab | Mechanic | 76 Tanners Dr | Thu 09:00–18:00 |
| Avenue Fencing | Fence contractor | Bacon House Farm | Daily 08:00–20:00 |
| Avenue plumbing and heating | Gas engineer | New Rd | Mon–Sat 09:00–18:00 |
| B&M Express | Discount supermarket | Unit 29a Farthing Grove | Mon–Sat 08:00–19:00 |
| Baby Basics MK | Charity | Barford, Galley Hill | Mon–Thu 09:00–13:00 |
| BabyBallers Milton Keynes | Sports club | School, Kents Hill Secondary | Mon–Fri 09:00–17:00 |
| Bancroft Auto Locksmiths | Locksmith | 54 Milecastle | Mon–Sat 09:00–17:00 |
| BANKS' Kickboxing & Boxing | Martial arts club | Unit 2, Lakeview house, Bond Ave | Mon–Fri 16:00–21:00 |
| BarMi Prestige Construction Limited | Construction company | Barmi Prestige Construction Limited Office G14 Fairboume Drive Atterbury | Mon–Fri 08:00–17:00 |
| Bay House Aromatics | Aromatherapy supply shop | Unit 3, Blakelands Industrial Estate, Tanners Dr | Mon–Fri 09:00–18:00 |
| Be At One - Milton Keynes | Cocktail bar | 25 Mortimer Square | Mon–Wed 17:00–01:00 |
| Beautiful Rooms | Kitchen supply shop | 314, Midsummer Court, Midsummer Blvd | Mon–Fri 09:00–17:00 |
| Being Well Holistic Health | Retreat centre | Whaddon Wy | Mon–Tue 06:00–22:00 |
| Belair Coffee | Coffee machine supplier | 94 Alston Dr | Mon–Fri 08:30–17:00 |
| Benissima Ltd | Delicatessen | 80 Tanners Dr | Mon–Wed 09:00–17:00 |
| Best Stony Kebab House | Kebab shop | 5 Wolverton Rd | Mon–Thu 16:00–00:00 |
| Best Value Doors | Door supplier | 29 Wharfside | Mon–Sat 09:00–18:00 |
| Better Roofing MK | Roofing service | 25 Nevill Cl | Mon–Fri 07:00–18:00 |
| Bianco Academy | Beauty therapy college | 651 S Fifth St | Mon–Sat 10:00–18:30 |
| BIB Design | Design agency | 10 Wood St | Mon 09:00–17:00 |