| Nostalgia Classics Ltd | Wholesale & retail | 2012 |
| Noteability ENT Limited | Administrative & support | 2009 |
| Nowfathom Limited | | 1988 |
| Nulease Group Limited | Construction | 2025 |
| Number 1 Couriers UK Ltd | Transport & logistics | 2024 |
| NØR Performance Ltd | Wholesale & retail | 2026 |
| Oak Green Design Ltd | Construction | 2023 |
| OFF Fishing Ltd | Real estate | 2023 |
| Olivia Holmes Equestrian Ltd | Administrative & support | 2026 |
| Olivia Investments Ltd | Real estate | 2017 |
| OMP Autos Ltd | Wholesale & retail | 2024 |
| ON Safe Ground Ltd | Extraterritorial | 2021 |
| Oncu 66 Ltd | Hospitality | 2024 |
| Oneways Transport Services Ltd | Transport & logistics | 2022 |
| OPE South Yorks Limited | Real estate | 2021 |
| Ormonde Leisure Limited | Real estate | 1984 |
| Ornorm Studio Ltd | Information & communication | 2022 |
| Outlaw Media Productions Ltd | Arts & recreation | 2025 |
| Ozissa Limited | Other services | 2020 |
| P H R Mechanical Services Ltd | Construction | 2017 |
| P H Site Services Limited | Construction | 2014 |
| Palmer Properties Ltd | Real estate | 2014 |
| Paracord Buddy UK Ltd | Wholesale & retail | 2021 |
| Paradise Carpets Ltd | Wholesale & retail | 2015 |
| Paragon Designs (Midlands) Limited | Construction | 2012 |
| Partridge and Burn Ltd | Construction | 2020 |
| Pask Hair Ltd | Other services | 2022 |
| Paul Mills Financial Services Limited | Financial services | 2012 |
| Paulson Plumbing & Heating Limited | Construction | 2008 |
| Paws Paradise Limited | Wholesale & retail | 2022 |
| Pdmuk Limited | Real estate | 2026 |
| Pdriskservices Limited | Financial services | 2016 |
| PDS Property Solutions Ltd | Real estate | 2015 |
| Peachtree Estates Limited | Real estate | 1989 |
| Peak Auto Locks Limited | Manufacturing | 2020 |
| Peak Balconies Limited | Construction | 2021 |
| Peak Home Solutions Ltd | Wholesale & retail | 2015 |
| Peak Plastics Limited | Manufacturing | 1971 |
| Peak Rotary Ltd | Professional & scientific | 2026 |
| Pearson Brickwork Ltd | Construction | 2023 |
| Pelican Woodwork Ltd | Manufacturing | 2019 |
| Pentrich Brewing Co. Ltd | Manufacturing | 2015 |
| Pest Control Services & Maintenance Ltd | Administrative & support | 2022 |
| Peter Rudge Consultancy Limited | Professional & scientific | 2023 |
| Pethick HOE Limited | Real estate | 1997 |
| Phoenix Packaging (Flexibles) Limited | Manufacturing | 2011 |
| Phone & Vape HQ Ltd | Wholesale & retail | 2022 |
| Pink Punch Ltd | Arts & recreation | 2011 |
| Pizza 4U Derbyshire Limited | Hospitality | 2025 |
| Pizza 4U Ripley Limited | Hospitality | 2022 |
| Pizza Tonys Limited | Hospitality | 2023 |
| Placement Vault Ltd | Administrative & support | 2025 |
| Plan B 22 Ltd | Hospitality | 2025 |
| Plant GUY Ltd | Construction | 2026 |
| Platinum Training Centre Ltd | Other services | 2019 |
| Platinum UK Home Improvements & Building Limited | Construction | 2022 |
| Platinum UK Home Improvements Limited | Construction | 2017 |
| Polar Air Conditioning Ltd | Energy | 2025 |
| Polar Breeze Air Conditioning & Refrigeration Ltd | Professional & scientific | 2026 |
| Poppyfield Interiors Ltd | Wholesale & retail | 2014 |
| Portunus Innovations Limited | Information & communication | 2025 |
| Postpeak Ltd | Information & communication | 2025 |
| Power and Plumb Limited | Wholesale & retail | 2024 |
| POYRA2 Limited | Hospitality | 2023 |
| Pre-School Dance Derby Ltd | Arts & recreation | 2024 |
| Precision Boiler Installations Limited | Construction | 2024 |
| Premier Power & Renovations Limited | Construction | 2025 |
| Pretty Swish Ltd | Wholesale & retail | 2023 |
| Prime 38 Ltd | Hospitality | 2026 |
| Proagilis Automation Ltd | Manufacturing | 2024 |
| Profectus Financial Services Limited | Professional & scientific | 2026 |
| Projex Tech Limited | Extraterritorial | 2025 |
| Properties Link Ltd | Real estate | 2016 |
| Properties Link Wentworth Ltd | Real estate | 2020 |
| Property Sold Ltd | Real estate | 2021 |
| Propsec Ltd | Information & communication | 2024 |
| Puplove Pooch Therapy Ltd | Other services | 2026 |
| Purpose Engineering Limited | Extraterritorial | 1997 |
| Push Project Management Ltd | Professional & scientific | 2021 |
| Pwiinstallations Ltd | Manufacturing | 2022 |
| Pyro Labs Ltd | Other services | 2025 |
| Quality Media Limited | Hospitality | 2008 |
| Quantaqua Limited | Administrative & support | 1999 |
| Quantum Meruit Projects Limited | Information & communication | 2017 |
| R & a Logistics Limited | Transport & logistics | 2004 |
| R & C Ripley Limited | Hospitality | 2025 |
| R Blackwell Associates Limited | Professional & scientific | 2025 |
| R Clark Quality Engineering Limited | Professional & scientific | 2013 |
| R Potts Engineering Consultants Ltd | Construction | 2021 |
| R Williams Plumbing & Heating Ltd | Construction | 2018 |
| R&A Adams Properties Ltd | Real estate | 2016 |
| R&J Metalwork Ltd | Construction | 2023 |
| R.M Hairdressing Ltd | Other services | 2022 |
| Racetech Harnessing Limited | Manufacturing | 2009 |
| Racking 2 Go Ltd | Manufacturing | 2005 |
| Racm Ltd | Wholesale & retail | 2020 |
| Rail Growth Advisory Ltd | Administrative & support | 2026 |
| Rail Integrity Solutions Ltd | Information & communication | 2025 |
| Ralane Properties Ltd | Real estate | 2017 |
| Rankpert Property Co.Limited | Real estate | 1959 |