| 4 Front Interiors Ltd | Builders | NN7 3DB | 2007 |
| 9m Construction Ltd | Builders | NN7 3FF | 2012 |
| A Cut Above Landscape & Treecare Ltd | Gardeners & landscapers | NN7 4BA | 2017 |
| A H Paving Ltd | Flooring & tiling | NN7 4SH | 2018 |
| A P Pressure Wash Ltd | Cleaners | NN7 3DB | 2020 |
| A Z Spray & Dec Ltd | Builders | NN7 4RH | 2025 |
| A. J. Construction Ltd | Builders | NN7 3DB | 2014 |
| A.C.N. Electrical Services Ltd | Electricians | MK19 6LL | 2016 |
| A5 Electrical Ltd | Electricians | MK19 7FJ | 2020 |
| Ableway Developments Ltd | Builders | NN7 3DB | 1997 |
| Ac Electrical (Mk) Ltd | Electricians | NN7 3DW | 2015 |
| Acp Property Development Ltd | Electricians | NN7 3DW | 2016 |
| Active 5 Ltd | Electricians | NN7 3DW | 2013 |
| Active Cleaning & Maintenance (Midlands) Ltd | Cleaners | NN7 2LU | 2010 |
| Adora Spa Ltd | Hair & beauty | NN7 2QH | 2022 |
| Air Fireshield Ltd | Builders | NN7 2PQ | 2026 |
| Air Pressure Test UK Ltd | Builders | NN7 4SW | 2008 |
| Alchemy Sport and Beauty Ltd | Hair & beauty | MK19 6FG | 2013 |
| Alesi Studios (Northampton) Ltd | Hair & beauty | NN7 4UF | 2025 |
| Alesi Studios Ltd | Hair & beauty | NN7 4UF | 2024 |
| Alexander Cleaning & Maintenance Ltd | Cleaners | NN7 4HY | 2015 |
| Allens Ropes & Electrical Ltd | Builders | NN7 1JB | 2016 |
| Allseasons Gardening & Logs Ltd | Gardeners & landscapers | NN7 2NR | 2009 |
| Alpha Plumbing & Air Conditioning Ltd | Plumbing & heating | NN7 3DD | 2026 |
| Als Fencing Ltd | Gardeners & landscapers | NN7 4RA | 2010 |
| Als Roofing (Milton Keynes) Ltd. | Roofers | MK19 6FD | 2019 |
| Als Roofing Ltd | Roofers | MK19 6FD | 2026 |
| Am Hybrid Ltd | Garages & mechanics | MK19 7AH | 2025 |
| American Motorhome Services Ltd | Garages & mechanics | NN7 2LN | 2025 |
| Amh Carpentry Ltd | Joiners & carpenters | MK19 6AN | 2010 |
| Ampidge Electrical Services Ltd | Electricians | NN7 2LA | 2026 |
| Andy Simmonds Aerials Ltd | Electricians | MK19 6JN | 2005 |
| Aniron Ltd | Builders | NN7 2BA | 2012 |
| Antoxa Garage Ltd | Garages & mechanics | NN7 4JU | 2026 |
| Anv Consulting Ltd | Builders | NN7 2BE | 2022 |
| Apex Building Solutions Mk Ltd | Builders | MK19 6HY | 2024 |
| Appleby Plumbing & Electrical Services Ltd | Electricians | NN7 1JB | 2020 |
| Aquaflow Plumbing & Heating Services Ltd | Plumbing & heating | NN7 1BD | 2015 |
| Aro Barbers and Hair Ltd | Hair & beauty | NN7 4PL | 2026 |
| Arrows Event Hire Ltd | Cleaners | NN7 1DN | 2022 |
| Asdc Ltd | Builders | NN7 2GA | 2026 |
| Ash Solar Energy Group Ltd | Electricians | NN7 4UF | 2023 |
| Ash Solar Renewables Ltd | Builders | NN7 4UF | 2021 |
| Auto Fx Ltd | Garages & mechanics | NN7 2AP | 2014 |
| Autos Ace Ltd | Garages & mechanics | NN7 3QF | 2026 |
| Avant-Garde Roofing Solutions Ltd | Roofers | NN7 2EU | 2009 |
| B Mead Roofing Specialist Ltd | Roofers | NN7 3DW | 2016 |
| Baileys Surveys Ltd | Builders | MK19 7FZ | 2025 |
| Baird Plant Hire Ltd | Groundworks & demolition | NN7 3DT | 2026 |
| Baobab & Butter Ltd | Hair & beauty | MK19 7FH | 2025 |
| Barber Box (Towcester) Ltd | Hair & beauty | NN7 3BJ | 2023 |
| Barnett Landscapes Ltd. | Gardeners & landscapers | NN7 4DG | 2007 |
| Bayes Interiors Ltd | Joiners & carpenters | NN7 1JB | 2019 |
| Bdm Removals Ltd | Removals | NN7 3DW | 2018 |
| Beauty By Keyleigh Ltd | Hair & beauty | NN7 3EN | 2021 |
| Ben White Hair Artistry Ltd | Hair & beauty | NN7 3NN | 2023 |
| Better Roofing Ltd | Roofers | MK19 7NY | 2021 |
| Billingsbrook Builders Ltd | Builders | NN7 3ES | 2021 |
| Bk Electrical (Mk) Ltd | Electricians | MK19 6JB | 2026 |
| Blakewaters Ltd | Builders | NN7 3DB | 2002 |
| Blaze Fire Technology Ltd | Builders | NN7 3DW | 2011 |
| Blr Masonry Ltd | Builders | NN7 4NQ | 2020 |
| Bm Carpentry (Beds) Ltd | Joiners & carpenters | NN7 3BY | 2025 |
| Boden & Ward London Ltd | Builders | NN7 4NQ | 2004 |
| Boden and Ward Stonemasons Ltd | Builders | NN7 4NQ | 1998 |
| Brg Roofing Ltd | Roofers | NN7 3DW | 2020 |
| Brice Automotive Ltd | Garages & mechanics | MK19 6AN | 2022 |
| Bright & Fisher Brickwork Ltd | Builders | NN7 1JB | 2024 |
| Brington Green Developments Ltd | Joiners & carpenters | NN7 4JB | 2023 |
| Brooke Interiors Ltd | Builders | NN7 3DW | 2022 |
| Bulldog and Bear Weedon Ltd | Hair & beauty | NN7 4PS | 2021 |
| C P Winters Ltd | Joiners & carpenters | NN7 4BZ | 2010 |
| Camelot U.P.V.C. Fascias & Guttering Ltd | Builders | NN7 4BB | 1998 |
| Carly Cleaning Services Ltd | Cleaners | NN7 3AH | 2021 |
| Case Electrical Ltd | Electricians | NN7 3DB | 2002 |
| Cassyannes Ltd | Hair & beauty | NN7 4UF | 2026 |
| Castle Vehicle Care Ltd | Garages & mechanics | NN7 2EG | 2026 |
| Castles Home & Garden Services Ltd | Builders | NN7 3DB | 2022 |
| Chapclad Ltd | Builders | NN7 3DW | 2008 |
| Chimney Services Ltd | Builders | NN7 1LU | 2016 |
| Chroma Conservation Ltd | Builders | NN7 1JF | 2016 |
| Churchill Roofing and Building Ltd | Roofers | NN7 1NE | 2026 |
| Cladding Maintenance & Solutions Ltd | Builders | NN7 3DB | 2007 |
| Classix Design & Developments Ltd | Builders | NN7 1NH | 1976 |
| Clinical Cleaning Services Ltd | Cleaners | NN7 1BL | 2024 |
| Clippers In the Ash Ltd | Hair & beauty | NN7 3DB | 2026 |
| Clippers N Curls Ltd | Hair & beauty | NN7 3DB | 2019 |
| Cns Heating, Plumbing and Air Conditioning Ltd | Plumbing & heating | NN7 2HH | 2026 |
| Comm Solve Solutions Ltd | Builders | NN7 3DB | 2015 |
| Complete Build Construction Ltd | Builders | MK19 6JH | 2012 |
| Conduct Services Ltd | Builders | NN7 2HL | 1999 |
| Confistruct Ltd | Builders | NN7 3DW | 2020 |
| Cornpastie Ltd | Electricians | MK19 7HU | 2025 |
| Cortinox Ltd | Builders | NN7 4NJ | 2026 |
| Cox'S Painters & Decorators Ltd | Painters & decorators | NN7 1JB | 2011 |
| Craig O'Dell Painting and Decorating Ltd | Builders | MK19 6GA | 2009 |
| Crd Drain Solutions Ltd | Cleaners | NN7 2JR | 2024 |
| Crf Electrics Ltd | Electricians | NN7 3DW | 2024 |
| Cross & White Ltd | Hair & beauty | NN7 3NN | 2025 |
| Ct Region 10 Ltd | Hair & beauty | NN7 4LY | 2025 |
| Ct Weston Favell Ltd | Hair & beauty | NN7 4LY | 2025 |
| Ctm Garage Ltd | Garages & mechanics | NN7 3SB | 2021 |
| Ctm Storage Ltd | Garages & mechanics | NN7 3SB | 2023 |
| Cw Installations Mk Ltd | Builders | NN7 3DW | 2014 |
| D & C Heating Services Ltd | Plumbing & heating | NN7 2DH | 2014 |
| D Haynes Roofing Ltd | Roofers | MK19 7DP | 2017 |
| D Thompson Kitchens Ltd | Joiners & carpenters | MK19 6NT | 2013 |
| D Willix Plasterers Ltd | Plasterers | NN7 3DW | 2024 |
| Damsig Ltd | Electricians | NN7 3EU | 2026 |
| Dan Perkins Services Ltd | Painters & decorators | NN7 2DW | 2013 |
| Dan'S Motor Repairs and Son Ltd | Garages & mechanics | NN7 2BG | 2024 |
| Datametrics Installation Services Ltd | Electricians | NN7 4NQ | 2016 |
| Dcg Contracts Ltd | Electricians | MK19 6AN | 2006 |
| De-Fence Landscaping Ltd | Gardeners & landscapers | NN7 3DB | 2016 |
| Deans Garden Spaces Drawing & Planning Services Ltd | Builders | NN7 3DW | 2019 |
| Deanshanger Vehicle Services Ltd | Garages & mechanics | MK19 6LX | 2019 |
| Diamond Installations & Refurbishments Ltd | Electricians | NN7 3DW | 2024 |
| Discday Ltd | Electricians | NN7 4LS | 2003 |
| Dleeson Builder Ltd | Builders | MK19 6HY | 2026 |
| Dms Site Management Ltd | Builders | NN7 3RH | 2016 |
| Do Bees Cleaning Ltd | Cleaners | NN7 2QR | 2025 |
| Docka Industrial Doors Ltd | Builders | NN7 3DW | 2025 |
| Dogot Brickwork Ltd | Builders | NN7 4EB | 2023 |
| Drepher Homes Ltd | Builders | NN7 3DB | 2014 |
| Dst Renovations Ltd | Builders | NN7 3DB | 2023 |
| Dunster Living Ltd | Builders | NN7 4UF | 2024 |
| E P Construction (Northampton) Ltd | Builders | NN7 4NN | 2019 |
| Eclipse Spray Solutions Ltd | Garages & mechanics | NN7 1HD | 2025 |
| Ecosmart Fit Ltd | Builders | MK19 6AN | 2011 |
| Ej Auto Solutions Ltd | Garages & mechanics | NN7 3AY | 2025 |
| Ejm Groundworks Ltd | Groundworks & demolition | MK19 7GA | 2011 |
| Elegant Facades Ltd | Builders | NN7 3DW | 2024 |
| Elements Heating Installations Ltd | Plumbing & heating | MK19 6AN | 2017 |
| Elite Fcs Ltd | Builders | NN7 1JB | 2012 |
| Elite Fence & Garden Ltd | Builders | NN7 3DW | 2001 |
| Elsigood Plant and Construction Ltd | Builders | NN7 3DW | 2019 |
| Enterprise Paving Ltd | Builders | NN7 4GB | 2015 |
| Ep Electrics Ltd | Electricians | MK19 6DT | 2021 |
| Es Electrical (Midlands) Ltd | Electricians | NN7 2BG | 2018 |
| Express Barbers Ltd | Hair & beauty | NN7 3DB | 2014 |
| Express Ductwork Services Ltd | Plumbing & heating | NN7 3DB | 1997 |
| Facial Rejuvenation Ltd | Hair & beauty | MK19 6AN | 2003 |
| Fairway Lawn and Gardens Ltd | Gardeners & landscapers | NN7 4RA | 2023 |
| Fhp Maintenance Ltd | Builders | NN7 1JB | 2026 |
| Finest Floors Ltd | Flooring & tiling | NN7 4PS | 2019 |
| Fineworks Ltd | Builders | NN7 3DW | 2026 |
| Finta Building Services Ltd | Builders | NN7 3DD | 2006 |
| Fire Prevention Specialists Ltd | Builders | MK19 6HW | 2019 |
| Fleet and Farm Services Ltd | Garages & mechanics | NN7 4BA | 2024 |
| Foley Worldwide Exhibitions Ltd | Builders | NN7 3DW | 2022 |