| Nexgen Retrofit Ltd | Professional & scientific | 2024 |
| Next View Home Improvements Ltd | Construction | 2025 |
| Nextsky Limited | Wholesale & retail | 2025 |
| Nexus Construction Midland Ltd | Construction | 2020 |
| Nexus Facilities Ltd | Construction | 2020 |
| Nexus Facilities Management Ltd | Construction | 2016 |
| Nexus Services Ltd | Construction | 2020 |
| Nexus Stone Capital Ltd | Real estate | 2025 |
| Nfj's Limited | Wholesale & retail | 2020 |
| NGG Transport Ltd | Transport & logistics | 2026 |
| Niconanny Ltd | Health & social care | 2024 |
| Nika Farms Ltd | Agriculture & fishing | 2025 |
| Nirvana Retreats Ltd | Real estate | 2024 |
| Nivaaz Services Limited | Construction | 2024 |
| NKD Global Limited | Wholesale & retail | 2022 |
| NKD Prime Construction Ltd | Construction | 2025 |
| NO Worries FS Ltd | Information & communication | 2024 |
| Nology Tech Ltd | Information & communication | 2026 |
| Noorainé Ltd | Wholesale & retail | 2026 |
| Noorswiftnest Limited | Transport & logistics | 2025 |
| North Shore Blackpool Cakebox Ltd. | Wholesale & retail | 2025 |
| Northern Foreshore Group Ltd | Information & communication | 2023 |
| Norton Property Developments Limited | Real estate | 2025 |
| NRG Commercial Holdings Limited | Real estate | 2022 |
| O Crumbb Ltd | Hospitality | 2025 |
| O'Neill Construction Group Limited | Construction | 2005 |
| O'Sullivan Loft Conversions Limited | Construction | 2014 |
| O.P.S Afro-Caribbean Market Ltd | Other services | 2025 |
| Oak View Property Limited | Real estate | 2003 |
| Oaklets Limited | Other services | 2016 |
| Oakley Family Investments Limited | Real estate | 2007 |
| Oakley Nominees Limited | Financial services | 2017 |
| OBP Creations Ltd | Wholesale & retail | 2022 |
| OC Landscaping and Driveways Ltd | Professional & scientific | 2026 |
| Ocean Blue Pools Ltd | Construction | 2022 |
| Octubre 21ST Limited | Wholesale & retail | 2014 |
| Oculus Capital Limited | Real estate | 2018 |
| OEM Source Ltd | Wholesale & retail | 2016 |
| Offshore Clothing Ltd | Wholesale & retail | 2021 |
| Okainth Limited | Transport & logistics | 2026 |
| Oliwia's Clothes Ltd | Wholesale & retail | 2022 |
| Olpat Ltd | Transport & logistics | 2024 |
| OM Motor Services Bilston Limited | Wholesale & retail | 2011 |
| Omega Pure Limited | Administrative & support | 2025 |
| ON Form Foundations Ltd | Construction | 2021 |
| One B Construction Limited | Construction | 2026 |
| One Red Velvet Ltd | Hospitality | 2025 |
| One Source MED Limited | Wholesale & retail | 2025 |
| One Stop Shop Bilston Ltd | Wholesale & retail | 2026 |
| ONLY4THEBRAVE Creations Limited | Wholesale & retail | 2025 |
| OOH Hair and Beauty Ltd | Other services | 2019 |
| Open Doors 4 U Training Ltd | Administrative & support | 2019 |
| Orchard Gate Property Ltd | Real estate | 2018 |
| ORI Atelier Limited | Wholesale & retail | 2026 |
| Oriental Rivers Ltd | Real estate | 2025 |
| ORL Electronic Technology Ltd | Other services | 2020 |
| OSA Care Services Ltd | Health & social care | 2023 |
| Osa's Transport Ltd | Transport & logistics | 2018 |
| Osam Limited | Health & social care | 2022 |
| Osbond Interiors Ltd | Construction | 2023 |
| OSG (Properties) Ltd | Construction | 2020 |
| OSG (Specialist Contractors) Ltd | Construction | 2019 |
| Ostl Limited | Transport & logistics | 2025 |
| OTL Midlands Ltd | Transport & logistics | 2015 |
| Ounsdale Road Management Company Limited | Households | 2019 |
| OUR Care Ltd | Health & social care | 2014 |
| OUR House Piotr Pacho Ltd | Administrative & support | 2014 |
| Owens of Bilston Limited | Wholesale & retail | 2003 |
| P & G Motors Limited | Wholesale & retail | 2022 |
| P & K Limited | Manufacturing | 2005 |
| P B Mini Digger&Driver Hire Ltd | Administrative & support | 2024 |
| P C Healthcare Ltd | Health & social care | 2023 |
| P Charlivan Ltd | Wholesale & retail | 2022 |
| P E J Construction (Midlands) Limited | Construction | 2014 |
| P R Property Developments Limited | Construction | 2021 |
| P&J Fuel (UK) Ltd. | Wholesale & retail | 2017 |
| P.E. Metals Limited | Water & waste | 1997 |
| P.J Partitions & Ceilings Ltd | Construction | 2010 |
| Palestra Fitness UK Ltd | Arts & recreation | 2025 |
| Pamaba Ltd | Transport & logistics | 2014 |
| Pampg Ltd | Information & communication | 2024 |
| Panash Bakery Limited | Wholesale & retail | 2024 |
| Panjab Auto Ltd | Wholesale & retail | 2026 |
| Panoramic Synergy Enterprises Ltd | Information & communication | 2013 |
| Paragon Childcare Services Solutions Ltd | Health & social care | 2024 |
| Parcel Delivery Force Limited | Transport & logistics | 2023 |
| Park Grill Catering Ltd | Hospitality | 2025 |
| Parker Precision Group Limited | Financial services | 2020 |
| Parker Precision Limited | Manufacturing | 1959 |
| Parkes (the Ironmaster) Management Company Limited | Professional & scientific | 2013 |
| Parshiv Retail Services Ltd | Wholesale & retail | 2024 |
| Patel Products Ltd | Wholesale & retail | 2025 |
| Patel Property Group Limited | Real estate | 2026 |
| Patel Property Management Limited | Real estate | 2022 |
| Pavilion Distribution Ltd | Wholesale & retail | 2013 |
| PDC Consultancy Limited | Wholesale & retail | 2002 |
| Peacock POP UP Shops Ltd | Hospitality | 2025 |
| Peartree Learning and Development Ltd | Other services | 2025 |
| Peefarkud Limited | Health & social care | 2018 |
| Pelli Companie Ltd | Other services | 2016 |