| Neatlines Ltd | Information & communication | 2016 |
| Needle Needs Ltd | Manufacturing | 2006 |
| New Asia Market Ltd | Wholesale & retail | 2024 |
| New House Farm Renewables Limited | Energy | 2025 |
| Newstar Technology Limited | Information & communication | 1998 |
| Next Steps Childcare Limited | Education | 2003 |
| Nexus Resolve Ltd | Professional & scientific | 2025 |
| Nickie Portman Limited | Wholesale & retail | 2017 |
| Nickorob Securities Ltd | Financial services | 2025 |
| Nielsen & Co Design Ltd | Professional & scientific | 2025 |
| Niice Communications Limited | Information & communication | 2016 |
| NL Shift Holdings Ltd | Financial services | 2025 |
| Noblelift Intelligent Equipment Co. (UK) Ltd | Wholesale & retail | 2025 |
| North Dairy Farm Solar Park Limited | Energy | 2019 |
| NP2 Property Ltd | Real estate | 2023 |
| Nrjf Service Solutions Limited | Professional & scientific | 2017 |
| Nurturewild CIC | Education | 2021 |
| NUT & Boltman Ltd | Wholesale & retail | 2020 |
| O J Landscapes Ltd | Administrative & support | 2018 |
| Oaklie Meadow Management Company Limited | Households | 2020 |
| Oakstone Building and Renovation Ltd | Construction | 2022 |
| OAKWOOD4 Ltd | Households | 2016 |
| Oasis Mortgage Solutions Limited | Financial services | 2021 |
| Occasional Creches Ltd | Health & social care | 2017 |
| Octatre Limited | Information & communication | 2021 |
| Octobox Ltd | Information & communication | 2018 |
| Old Westbrook Farm Ltd | Real estate | 2013 |
| Olwanda Invest Ltd | Wholesale & retail | 2022 |
| Omnio Energy Limited | Energy | 2016 |
| ON Solid Groundworks and Plant Hire Ltd | Construction | 2024 |
| One Fine TEE Ltd | Wholesale & retail | 2021 |
| One LEG Square Shepton Mallet Limited | Households | 2013 |
| One Way Partners Limited | Financial services | 2011 |
| Open Party Ltd | Other services | 2020 |
| Optimised Distribution Ltd | Wholesale & retail | 2026 |
| ORD Racing Ltd | Information & communication | 2025 |
| Orwell (Bourton) Limited | Real estate | 2021 |
| Orwell (Ebbsfleet) Limited | Construction | 2021 |
| Orwell (Somerset One) Investments Limited | Real estate | 2024 |
| Orwell (Somerset One) Limited | Real estate | 2020 |
| Orwell Development Management Limited | Professional & scientific | 2023 |
| Orwell RE Richmond Limited | Real estate | 2020 |
| Orwell Real Estate Limited | Professional & scientific | 2019 |
| Orzo Travel Ltd | Information & communication | 2025 |
| OUT of Office Digital Ltd | Professional & scientific | 2026 |
| Outdoor Kitchens (South West) Ltd | Construction | 2017 |
| Outstanding Care Limited | Health & social care | 2018 |
| Overnight Europe Ltd | Transport & logistics | 2017 |
| OWL Investment Bidco Limited | Financial services | 2022 |
| OWL Topco 1 Limited | Financial services | 2022 |
| P & N White Milking Ltd | Manufacturing | 2020 |
| P HIX Welding Services Limited | Manufacturing | 2003 |
| P R Simpson Contracting Ltd | Administrative & support | 2023 |
| Painsbrook Renewables Limited | Energy | 2026 |
| Park Farm Solar Park Limited | Energy | 2020 |
| Park View Morley Road Limited | Households | 2004 |
| Parker Transport (SW) Limited | Transport & logistics | 2005 |
| Parker Westfield Limited | Transport & logistics | 2018 |
| Pathway Connections Ltd | Health & social care | 2025 |
| Paul King Medical Ltd | Health & social care | 2022 |
| Paul Nicholls Racing Limited | Other services | 1997 |
| Paul Services Ltd | Transport & logistics | 2024 |
| Paul Vincent Kitchens Limited | Manufacturing | 2015 |
| Pawelski Close (Dean) Limited | Households | 2001 |
| Paws for ALL Ltd | Health & social care | 2020 |
| Payne-Walton Investments Limited | Financial services | 2020 |
| PCP 2014 Limited | Real estate | 2014 |
| PDS Energy Limited | Professional & scientific | 2016 |
| Pecking Mill Management Company Limited | Households | 2017 |
| Pellegrini (UK) Limited | Wholesale & retail | 2001 |
| Pencils With Purpose Ltd | Wholesale & retail | 2025 |
| Pennard Festival Ltd | Hospitality | 2022 |
| Pennard Hill Farm Holdings Limited | Professional & scientific | 2010 |
| Pennard Hill Farm Limited | Agriculture & fishing | 1975 |
| Pennard House Ltd | Hospitality | 2019 |
| Pennard Productions Limited | Hospitality | 2009 |
| Pennard Stays Ltd | Hospitality | 2026 |
| Peploe and Peploe Ltd | Real estate | 2023 |
| Perrys Events Limited | Hospitality | 2023 |
| Perrys Paddock Limited | Hospitality | 2023 |
| Peter Green Chilled Limited | Professional & scientific | 1998 |
| Peter Green Haulage Limited | Transport & logistics | 1977 |
| Phillips Tyres Shepton Mallet Limited | Wholesale & retail | 2008 |
| Phoenix Engine Management Ltd | Wholesale & retail | 2020 |
| Phoenix Motorsport Wiring Ltd | Manufacturing | 2022 |
| PHW Rentals Ltd | Administrative & support | 2012 |
| Pilton Cider Ltd | Manufacturing | 2022 |
| Pilton Road Community Garden Community Interest Company | Professional & scientific | 2009 |
| Pilton Working Men's Club Limited | Hospitality | 2012 |
| Pink Ice Retail Ltd | Wholesale & retail | 2025 |
| Pipc Ltd | Real estate | 2019 |
| Pitch Corporation Limited | Extraterritorial | 2013 |
| Platform Stage Limited | Arts & recreation | 2023 |
| Plum Bowtique Ltd | Wholesale & retail | 2021 |
| PN Racing Holdings Limited | Financial services | 2018 |
| Pooch and Paws Ltd | Wholesale & retail | 2024 |
| Portman Hicks and Blackmore Ltd | Professional & scientific | 2024 |
| Portman Jnjk Limited | Wholesale & retail | 2019 |
| Portman Sisters Ltd | Professional & scientific | 2025 |
| Potley Gold Limited | Wholesale & retail | 2025 |