| Nixon and Evans Consulting Limited | Professional & scientific | 2018 |
| NJ Hire Services Limited | Construction | 2015 |
| NJ Property Services Ltd | Real estate | 2021 |
| NJM Group Limited | Administrative & support | 2021 |
| NKL Management Limited | Real estate | 2018 |
| NLJ Constructions Limited | Construction | 2020 |
| NMB Vehicle Transport Ltd | Transport & logistics | 2025 |
| NO.1 Vets Limited | Professional & scientific | 2019 |
| Noosa Home Ltd | Wholesale & retail | 2024 |
| Norton Plant Limited | Construction | 2013 |
| Novotek Solutions UK & Ireland Limited | Information & communication | 2000 |
| NSA Electrical Installations Ltd | Construction | 2021 |
| NTS Engineering Ltd | Construction | 2011 |
| NU Gears Limited | Professional & scientific | 2005 |
| Number 1 Vets Ltd | Professional & scientific | 2019 |
| Numero AR Limited | Information & communication | 2018 |
| Nurturing Minds Day Nursery Ltd | Health & social care | 2023 |
| Nutan Limited | Hospitality | 2023 |
| Oakmount and Partners (Property SPV1) Limited | Other services | 2024 |
| Oasis Fast Food Rugeley Ltd | Hospitality | 2024 |
| Oasis Store Rugeley Limited | Wholesale & retail | 2026 |
| ODE Trading Ltd | Wholesale & retail | 2024 |
| Odin's EYE Ltd | Hospitality | 2013 |
| Odyssey Consulting Services Ltd | Professional & scientific | 2019 |
| OFF Grid Installer Ltd | Construction | 2016 |
| Ofjc Trading Limited | Wholesale & retail | 2023 |
| OIL Coolers and Compressors Limited | Manufacturing | 2006 |
| Old Barn Kennels Ltd | Other services | 2022 |
| Old Coach Properties Ltd | Households | 2016 |
| Old England Conservation Limited | Construction | 2022 |
| Oliphant-Wood Consulting Limited | Professional & scientific | 2019 |
| ON the Deck NPD Ltd | Professional & scientific | 2026 |
| Onechm Ltd | Professional & scientific | 2016 |
| Oneline Solutions Limited | Other services | 2025 |
| Onelink Solutions Limited | Professional & scientific | 2025 |
| Onsite Caravan Services Limited | Manufacturing | 2025 |
| Onyx Network Services Ltd | Construction | 2023 |
| Openensure Ltd | Manufacturing | 2011 |
| Operational Symbiosis Limited | Administrative & support | 2012 |
| Opmep Ltd | Construction | 2025 |
| Oppw Limited | Wholesale & retail | 2023 |
| OPS Building Services Ltd | Construction | 2025 |
| Optimum Environmental Ltd | Construction | 2025 |
| Optimum Plumbing and Heating Services Limited | Construction | 2021 |
| Orchard Farm Management Limited | Households | 2008 |
| Orranje Performance Ltd | Wholesale & retail | 2015 |
| Osprey Interiors (Rugeley) Limited | Wholesale & retail | 2023 |
| Otsley Ltd | Wholesale & retail | 2025 |
| Overall Maintenance Ltd | Administrative & support | 2023 |
| Oxby Trading Limited | Agriculture & fishing | 2003 |
| Oxylife Wellness Ltd | Wholesale & retail | 2026 |
| P H & C Easter Limited | Construction | 2010 |
| P M Personnel Limited | Transport & logistics | 2006 |
| P.S. Ottley Transport Limited | Administrative & support | 2009 |
| P4C Derby Ltd | Wholesale & retail | 2021 |
| PAB Alarms Ltd | Construction | 2019 |
| Pack Meadow Sports Ltd | Arts & recreation | 2025 |
| Paint 4 Carz Limited | Wholesale & retail | 2015 |
| Pakeman Investments Limited | Real estate | 1959 |
| Pandikunta Limited | Hospitality | 2025 |
| Panelscape Limited | Construction | 2025 |
| Panorama Consulting Limited | Professional & scientific | 2023 |
| Pantaq Ltd | Wholesale & retail | 2010 |
| Paragon Projection Limited | Administrative & support | 1986 |
| Paramount Signs Ltd | Manufacturing | 2003 |
| Parasol Investments Limited | Real estate | 2012 |
| Parasol Rentals Limited | Real estate | 2019 |
| Parker Property Holdings Group Ltd | Hospitality | 2026 |
| Parklands Gardens Limited | Households | 1981 |
| Parkstone Home Improvements Ltd | Construction | 2019 |
| Parrott and Page Ltd | Real estate | 2022 |
| Parsons Industrial Plastics & Engineering Co. (Walsall) Limited | Manufacturing | 2007 |
| Parsons Plastics (Sales) Limited | Manufacturing | 2007 |
| Pat-Kruger Systems Limited | Administrative & support | 2006 |
| Patricia Rose Properties Ltd | Real estate | 2024 |
| Paul Egerton Development Ltd | Professional & scientific | 2015 |
| Peachy Wellbeing Ltd | Education | 2023 |
| Peak Health Food Ltd | Wholesale & retail | 2009 |
| Pearce Residential Ltd | Real estate | 2022 |
| Peer Genius Ltd | Other services | 2019 |
| Penell Limited | Professional & scientific | 2021 |
| Penta Sourcing Limited | Wholesale & retail | 2023 |
| Periculi Limited | Administrative & support | 2020 |
| Pet Review Club Limited | Information & communication | 2025 |
| Philip Cavender Limited | Wholesale & retail | 2024 |
| Phillip Emery Funeral Directors Limited | Other services | 2008 |
| Phillip Southwell Estates Limited | Real estate | 1988 |
| Phoenix Beauty Rugeley Ltd | Other services | 2023 |
| Phoenix Building Services Ltd | Construction | 2025 |
| Phoenix Flooring Solutions Limited | Other services | 2014 |
| Phoenix PMU Ltd | Other services | 2023 |
| Pick Mobile Ltd | Information & communication | 2025 |
| Pine Property Ventures Ltd | Real estate | 2020 |
| PJE & MAE Associates Limited | Information & communication | 2015 |
| PJP Wildlife Ltd | Agriculture & fishing | 2026 |
| PK Accounting & Payroll Ltd | Professional & scientific | 2014 |
| Planner Time Limited | Professional & scientific | 2023 |
| Plant Revelations Limited | Agriculture & fishing | 2021 |
| Plasticwheels Limited | Manufacturing | 1989 |
| Plaztek Animal Housing Ltd | Manufacturing | 2013 |