| NRG Fleet Services Limited | Financial services | 2006 |
| NRG Health and Fitness C.I.C. | Education | 2007 |
| NRG Riverside Limited | Extraterritorial | 2021 |
| NRG Riverside Properties Limited | Real estate | 2011 |
| NRG Services(Nw) Limited | Administrative & support | 2025 |
| NRM Transport Logistic Ltd | Transport & logistics | 2025 |
| NU 94 Limited | Transport & logistics | 2018 |
| Nueva Vida Property Ltd | Hospitality | 2026 |
| Number Nook Limited | Professional & scientific | 2026 |
| Nutrition FIX Ltd | Wholesale & retail | 2024 |
| Nutrition to Go NW Ltd | Health & social care | 2014 |
| Nutrix Performance Ltd | Wholesale & retail | 2026 |
| NW Sameday Ltd | Transport & logistics | 2026 |
| Nwda Limited | Construction | 2023 |
| Nwri Limited | Education | 2026 |
| Nwwuk Ltd | Professional & scientific | 2025 |
| O.L.S Property Ltd | Real estate | 2025 |
| Oasys Development Limited | Information & communication | 2020 |
| OD Solutions Ltd | Manufacturing | 2024 |
| ODD Duck Digital Ltd | Information & communication | 2026 |
| Odin AI Ltd | Wholesale & retail | 2025 |
| OH Baby! Event Company Ltd | Hospitality | 2025 |
| Ojmc Limited | Professional & scientific | 2023 |
| Old Dog Barbershop Limited | Other services | 2018 |
| Old Swan Films Ltd | Information & communication | 2023 |
| Old Town Skem Ltd | Professional & scientific | 2025 |
| Olly's Driver Training Ltd | Education | 2022 |
| Omevy Ltd | Wholesale & retail | 2020 |
| ON Demand Solutions 1 Ltd | Construction | 2025 |
| One Stop Finishers Ltd | Professional & scientific | 2009 |
| Only Scrans Ltd | Hospitality | 2023 |
| Operon Delivery Ltd | Information & communication | 2026 |
| Optima Technical Solutions Ltd | Information & communication | 2025 |
| Origin Sign Co Ltd | Professional & scientific | 2015 |
| Original Cosmetics Ltd | Wholesale & retail | 2019 |
| Oris Consulting Limited | Professional & scientific | 2025 |
| Ormrod Engineering Services Limited | Administrative & support | 2003 |
| Ormskirk Road Petrol Station Limited | Wholesale & retail | 2012 |
| Ormskirk Student Events Ltd | Arts & recreation | 2024 |
| OUT of Hours West Lancashire C.I.C. | Health & social care | 2000 |
| OVI Tiling Ltd | Construction | 2024 |
| Owen Security Services Limited | Administrative & support | 2017 |
| Oyster Worldwide Employment & Learning Services Ltd | Administrative & support | 2023 |
| P & B Commercials Limited | Wholesale & retail | 2022 |
| P B Offshore Electrical Ltd | Construction | 2015 |
| P&H (Skelmersdale) Ltd | Hospitality | 2022 |
| P&Relectrical Contractors Limited | Construction | 2013 |
| P.M DYC Ltd | Transport & logistics | 2020 |
| Pacville Ltd | Real estate | 2006 |
| Pagefield Properties Limited | Real estate | 2006 |
| PAN GLO UK Holdings Limited | Administrative & support | 2008 |
| Pangea Energy Ltd | Construction | 2025 |
| Paradise Premier Parties Limited | Administrative & support | 2016 |
| Paradox Dynamics Ltd | Wholesale & retail | 2026 |
| Paragon International Limited | Other services | 2005 |
| Parrys Fleet Services Ltd | Public administration | 2019 |
| PAS2035 Consultants Ltd | Professional & scientific | 2024 |
| Pass Point Training Limited | Other services | 2009 |
| Passive Fire Pro Ltd | Public administration | 2025 |
| Passwish Limited | Real estate | 1988 |
| Paul Carey Tiling Ltd | Construction | 2026 |
| Payless Furniture Limited | Wholesale & retail | 2006 |
| Pcmanp Ltd | Health & social care | 2020 |
| PCS Support Limited | Health & social care | 2020 |
| PD Marketing & Media Ltd | Financial services | 2017 |
| Peakp Ltd | Transport & logistics | 2024 |
| Pearl Engineering Services (UK) Limited | Manufacturing | 2009 |
| Pearl T&A Consultancy Limited | Information & communication | 2025 |
| Pedey Limited | Professional & scientific | 2022 |
| Peelhouseco Limited | Real estate | 2011 |
| Pelma Records Limited | Information & communication | 2026 |
| Penketh Place Limited | Real estate | 2022 |
| Perro Pintado Ltd | Professional & scientific | 2020 |
| Petecanservices Limited | Professional & scientific | 2006 |
| Peter Hogg Limited | Professional & scientific | 2014 |
| Peter's 77 Ltd | Manufacturing | 2017 |
| PGL Pipelines (EOT) Limited | Financial services | 2024 |
| PGL Pipelines Limited | Construction | 2006 |
| Phases (Skelmersdale) Ltd | Extraterritorial | 2021 |
| Phillips Renewable Management Group Limited | Construction | 2019 |
| Phoenix Grappling Ltd | Arts & recreation | 2025 |
| Pimbo Mill Limited | Manufacturing | 2025 |
| Pinefold Enterprises Limited | Real estate | 2001 |
| Pintola Limited | Health & social care | 2024 |
| Pisti Luna XXL2018 Ltd | Transport & logistics | 2019 |
| Pizza Delightt Ltd | Hospitality | 2026 |
| Plant Deeside Ltd | Transport & logistics | 2025 |
| Plant Services Sameday Limited | Transport & logistics | 2023 |
| Playsound Services Limited | Construction | 2003 |
| Pmr-Operations Ltd | Transport & logistics | 2015 |
| PNL Solutions Limited | Financial services | 2015 |
| Polita Creative Ltd | Wholesale & retail | 2025 |
| Polly Digital Marketing Ltd | Financial services | 2026 |
| Polly Marketing Ltd | Financial services | 2026 |
| Pooles Property Services Limited | Households | 2023 |
| Posier Ltd | Wholesale & retail | 2021 |
| Positive Pathways NW Ltd | Health & social care | 2022 |
| Positive Promotions (North West) Ltd | Professional & scientific | 2024 |
| Pothula Medical Services Ltd | Health & social care | 2011 |
| Power Engineering Holdings Limited | Financial services | 2025 |