| MZS Mart Limited | Wholesale & retail | 2025 |
| N.E. Beauty Lounge Limited | Other services | 2018 |
| N.O.C Salons Limited | Other services | 2011 |
| NAA17 Limited | Wholesale & retail | 2017 |
| Naked Soup Limited | Hospitality | 2023 |
| Nare Doru Construction Limited | Construction | 2020 |
| National Accidents Limited | Public administration | 2019 |
| National Wrestling League Ltd | Arts & recreation | 2026 |
| Nationwide Roof Leak Detection Ltd | Construction | 2018 |
| Neilston Catering Limited | Hospitality | 2021 |
| Neumann Engineering Limited | Education | 2016 |
| New Stevenston Property Co (Glasgow) Limited | Real estate | 2019 |
| New Stevenston Property Company Limited | Construction | 1947 |
| Newnham Grange Ltd | Real estate | 2023 |
| Nica Draws Nature Ltd | Professional & scientific | 2025 |
| Nine to Twelve Ltd | Information & communication | 2023 |
| Nisemono Ltd | Information & communication | 2019 |
| NJR Coatings Ltd | Construction | 2019 |
| NMG Business Services Ltd | Financial services | 2021 |
| NMG Corporate Services Ltd | Administrative & support | 2021 |
| NMG Marine Services Ltd | Transport & logistics | 2014 |
| Noble Public Houses Ltd | Hospitality | 2023 |
| NON Stop Noise Ltd | Administrative & support | 2026 |
| Norman Dorricott Landscape Solutions Limited | Administrative & support | 2024 |
| Northern Marine Group Ltd | Transport & logistics | 2014 |
| Northern Marine Manning Services Limited | Administrative & support | 1984 |
| Northern Marine Ship Management Ltd | Administrative & support | 2015 |
| Northscope Logistics Ltd | Transport & logistics | 2025 |
| Nova Automation Ltd | Construction | 2022 |
| Novar Property Company (Glasgow) Limited | Real estate | 1958 |
| Novo Therapy and Care Limited | Health & social care | 2015 |
| NOW Beauty Cumbernauld Ltd | Other services | 2021 |
| NOW Brow (Braehead) Limited | Other services | 2016 |
| NOW Brow (Clydebank) Limited | Education | 2016 |
| NOW Brow Linwood Ltd. | Other services | 2020 |
| NOW Brow Livingston Ltd | Other services | 2017 |
| NOW Business Ltd | Other services | 2020 |
| NOW Nails (Braehead) Ltd | Other services | 2019 |
| NOW Nails Clyde Ltd | Other services | 2014 |
| NOW Nails Linwood Ltd | Other services | 2020 |
| NPH133 Ltd | Hospitality | 2025 |
| Nspire Finance Ltd | Administrative & support | 2025 |
| Nspire Sports Agency Ltd | Professional & scientific | 2025 |
| Nuala PUB Co Ltd | Hospitality | 2020 |
| Nurpur & Co Limited | Information & communication | 2025 |
| NW Decor Ltd | Construction | 2025 |
| NWM Sales Partnership Limited | Professional & scientific | 2023 |
| O'Brien & SON Builders | | 1999 |
| O'Connell Collective Ltd | Health & social care | 2025 |
| Oak and Thistle Limited | Households | 2025 |
| Oakcairn Limited | Real estate | 1994 |
| OBS Construction Limited | Construction | 2015 |
| OE Consults Ltd | Transport & logistics | 2019 |
| Offshoot Design Ltd | Professional & scientific | 2015 |
| Offshore Workboats Ltd | Professional & scientific | 2015 |
| Offsolutions Ltd | Public administration | 2024 |
| OFR Management Ltd | Information & communication | 2025 |
| Oham Ventures Ltd | Transport & logistics | 2026 |
| Old Street Properties Limited | Real estate | 2023 |
| Omalk Ltd | Administrative & support | 2025 |
| Omex Trading Ltd | Wholesale & retail | 2025 |
| One Call Facilities Management Ltd | Manufacturing | 2011 |
| One Stop Card Shop Limited | Wholesale & retail | 2024 |
| Optimum Group Services Ltd | Administrative & support | 2022 |
| Opulent Consults Ltd | Professional & scientific | 2026 |
| Opulent Pathways CIC | Education | 2025 |
| Outbound Print Co Ltd | Manufacturing | 2021 |
| Outline Consultancy Limited | Information & communication | 2011 |
| Ovni Consulting Engineers Ltd | Professional & scientific | 2023 |
| P J Travel Ltd. | Transport & logistics | 2003 |
| P MC Dowell Building Services Ltd | Construction | 2016 |
| P&K Civils Ltd | Construction | 2016 |
| P.E.G Beauty Limited | Other services | 2016 |
| PA Transport & Haulage Ltd | Transport & logistics | 2018 |
| Pafko Limited | Wholesale & retail | 2025 |
| Parkhall Ltd | Wholesale & retail | 2025 |
| Party Plug Limited | Hospitality | 2025 |
| Party POP Ltd | Wholesale & retail | 2019 |
| Pastdue Credit Solutions Limited | Information & communication | 2005 |
| Patchwork Ponies CIC | Education | 2024 |
| Patras Investments Ltd | Wholesale & retail | 2021 |
| Paul Colford Limited | Administrative & support | 2011 |
| Paul James Cards Ltd | Wholesale & retail | 2026 |
| Paul James Home Ltd | Wholesale & retail | 2021 |
| Pawlaktransport Ltd | Transport & logistics | 2025 |
| PC Bakery Ltd | Wholesale & retail | 2025 |
| PC Building & Landscapes Ltd | Construction | 2016 |
| PDR Solutions Limited | Real estate | 2012 |
| PEG Automotive Ltd | Manufacturing | 2017 |
| PEG Property (Scot) Limited | Real estate | 2025 |
| Pegasus Flat Roofing Solutions Ltd | Construction | 2021 |
| Peitchesmoor Ltd | Real estate | 2020 |
| Pennyfarthing Properties Ltd | Real estate | 2020 |
| Pepaj Property Ltd | Real estate | 2021 |
| Perfect Catch Clydebank Ltd | Hospitality | 2020 |
| Perfect Catch Ltd | Hospitality | 2018 |
| Perfect Grocers Ltd | Wholesale & retail | 2025 |
| Peri Peri DOT Clydebank Ltd | Hospitality | 2020 |
| Peri Spicy Bite Ltd | Hospitality | 2025 |
| Perspective Construction Group Ltd | Construction | 2025 |