| Navi Enterprise Ltd | Transport & logistics | 2024 |
| NB Holdings Yorkshire Limited | Financial services | 2023 |
| ND Workplace Ltd | Administrative & support | 2018 |
| Nectarella Ltd | Wholesale & retail | 2023 |
| Neu:Form Limited | Construction | 2025 |
| New Delight Inn Limited | Hospitality | 2025 |
| Niawa Ltd | Hospitality | 2019 |
| Nicholas Dutton Consulting Limited | Professional & scientific | 2018 |
| Nick COX Design Services Ltd | Information & communication | 2014 |
| Nightjar Brew Company Limited | Manufacturing | 2015 |
| NJH Limited | Wholesale & retail | 2008 |
| Noisy Toys Limited | Manufacturing | 2007 |
| Nook & Cranny Limited | Hospitality | 2003 |
| North of Watford Personal Management Ltd | Arts & recreation | 2015 |
| Northern Powerhouse Boxing Academy C.I.C. | Arts & recreation | 2018 |
| Northern Rascals CIC | Arts & recreation | 2023 |
| Northlight Art Studios Ltd | Arts & recreation | 2005 |
| NOT Even the Rain Ltd | Information & communication | 2026 |
| Nutclough Mill Holding Limited | Real estate | 2026 |
| Nutclough Mill Limited | Real estate | 2011 |
| O W Construction Ltd | Construction | 2011 |
| Oak Apples Forest School Ltd | Education | 2020 |
| Oaktree Properties Limited | Construction | 1988 |
| Oakwold Logistics Ltd | Transport & logistics | 2014 |
| Oasis News Ltd | Wholesale & retail | 2007 |
| Odonto Prestige Ltd | Professional & scientific | 2026 |
| Office Solutions (Leeds) Ltd. | Real estate | 2023 |
| Old Chamber Service Company Limited | Extraterritorial | 2001 |
| Old Gate Restaurant Ltd | Hospitality | 2013 |
| Old Town Farm Management Co Limited | Households | 2026 |
| Old Town Retail Ltd | Wholesale & retail | 2020 |
| Ontic Watches Limited | Wholesale & retail | 2024 |
| Optimize Fitness Ltd | Arts & recreation | 2011 |
| Orange Box Hire Limited | Construction | 2013 |
| Orange Quinny's Limited | Hospitality | 2018 |
| Orbit Haus Ltd | Information & communication | 2025 |
| Orca EV Ltd | Construction | 2024 |
| Ostrich, Panda and Monkey Limited | Hospitality | 2022 |
| OW Living Ltd | Construction | 2025 |
| O’Er Vales and Hills Limited | Education | 2025 |
| P Cunningham Plasterers & Slaters Ltd | Construction | 2018 |
| P G Groundworks & SON Ltd | Construction | 2015 |
| P G Psychology Limited | Health & social care | 2023 |
| P. J. Adams Ltd | Construction | 2011 |
| P.& M.Services(Rochdale)Limited | Manufacturing | 1965 |
| PAB Construction Limited | Construction | 2025 |
| Padma Yoga Ltd | Real estate | 2014 |
| Pall Accounting Ltd | Administrative & support | 2018 |
| Palmstone Estates Limited | Real estate | 1986 |
| Park Life Cafe Ltd | Hospitality | 2011 |
| Parry Pubs Ltd | Hospitality | 2026 |
| Pathway Software (UK) Limited | Information & communication | 2009 |
| Paul Coates Limited | Arts & recreation | 2022 |
| Paul Marc Ltd | Construction | 2023 |
| Pecket Well Old Coop Management Ltd | Real estate | 2015 |
| Pedigree Systems Limited | Information & communication | 2000 |
| Pegasus Consultants Ltd | Information & communication | 2019 |
| PEN & Pearl Limited | Wholesale & retail | 2025 |
| Pennine Components (Holdings) Limited | Real estate | 2006 |
| Pennine Components Distribution Ltd | Wholesale & retail | 2022 |
| Pennine Components Investments Limited | Financial services | 2022 |
| Pennine Components Limited | Wholesale & retail | 1979 |
| Pennine Food Links Ltd | Wholesale & retail | 2004 |
| Pennine Foot Care Limited | Real estate | 2017 |
| Pennine Powder Coating Ltd | Manufacturing | 2026 |
| Pennine Provisions Ltd | Wholesale & retail | 2022 |
| Pentacrafts Witchcraft Emporium Ltd | Wholesale & retail | 2024 |
| Perfect Marketing People Limited | Administrative & support | 2009 |
| Pete Round Building & Restoration Ltd | Construction | 2011 |
| PG Stone (Yorkshire) Ltd | Construction | 2021 |
| Playtopia Mytholmroyd Ltd | Health & social care | 2020 |
| Plenitude Productions Limited | Information & communication | 2011 |
| Plenty of Fish and Chips Limited | Hospitality | 2016 |
| Plumb Learning CIC | Education | 2021 |
| Plus Public Affairs Limited | Professional & scientific | 2002 |
| PMW Technology Limited | Professional & scientific | 2016 |
| POD Space Holdings Limited | Financial services | 2024 |
| Politicker Ltd | Manufacturing | 2025 |
| Polkadot Lane Ltd | Wholesale & retail | 2015 |
| Pollard Property Lettings Ltd | Real estate | 2022 |
| Polyfinity Limited | Wholesale & retail | 2016 |
| Poobix Cube Ltd | Wholesale & retail | 2025 |
| Portalx Limited | Information & communication | 2025 |
| Pouchaul Ltd | Transport & logistics | 2017 |
| Powerfax of Halifax Ltd | Professional & scientific | 2021 |
| Prancing Horse Limited | Wholesale & retail | 2019 |
| Prem Sehmi Holdings Limited | Professional & scientific | 2012 |
| Premier Mist Investments Ltd | Real estate | 2024 |
| Premier Mist UK Limited | Construction | 2012 |
| Priestley ING Wood Limited | Administrative & support | 1989 |
| Prima Building Services Plus Ltd | Construction | 2022 |
| Prima Contract Consultancy Plus Ltd | Construction | 2022 |
| Prima Fire & Security Ltd | Construction | 2017 |
| Prima Fire Installations UK Ltd | Construction | 2022 |
| Prima Group Plus Ltd | Financial services | 2022 |
| Prima Mist UK Ltd | Construction | 2022 |
| Prima Specialist Recruitment Plus Ltd | Construction | 2022 |
| Prima Sprinklers UK Ltd | Construction | 2022 |
| Pro-Spin Productions Ltd | Manufacturing | 2017 |
| Procom Technical Services Limited | Information & communication | 1997 |