| Nicky Gregory Limited | Transport & logistics | 2020 |
| Nimble Clinic Limited | Health & social care | 2019 |
| Ninepm EBT Limited | Financial services | 2013 |
| Ninepm Limited | Administrative & support | 2011 |
| Nmjm Holdings Ltd | Real estate | 2018 |
| NO One Left OUT: Solutions Limited | Professional & scientific | 2014 |
| Nomadic Feasts Ltd. | Hospitality | 2015 |
| Noplaceart Limited | Administrative & support | 2018 |
| Nore Estate Limited | Households | 2023 |
| Norfolk House Clevedon Management Company Limited | Households | 1976 |
| Norland Properties (Bristol) Limited | Real estate | 2015 |
| North Somerset Damp and Mould Solutions Ltd | Construction | 2025 |
| North Somerset Electrical Ltd | Extraterritorial | 2026 |
| North Somerset Heating Ltd | Extraterritorial | 2024 |
| North Somerset Home Care Ltd | Health & social care | 2023 |
| North Somerset Plumbing & Heating Ltd | Construction | 2017 |
| Northwick Homes Limited | Administrative & support | 2013 |
| Norton Court Investment Properties Limited | Real estate | 2022 |
| Novantis Technologies Limited | Information & communication | 2008 |
| NPC Installations Limited | Construction | 2021 |
| NSN Property Limited | Real estate | 2023 |
| Nude Ltd | Wholesale & retail | 2026 |
| Nutcracker Christmas Trees Ltd | Wholesale & retail | 2022 |
| Nutrifyou Limited | Wholesale & retail | 2018 |
| Nuvola Limited | Information & communication | 2003 |
| O & R Investments Ltd | Financial services | 2025 |
| O'Shea Tree Services Ltd | Administrative & support | 2021 |
| OAH Transport Ltd | Construction | 2020 |
| Oak (Stoke Park) Management Company Limited | Households | 2000 |
| Oak Phase V (Stoke Park) Management Company Limited | Households | 2001 |
| Oaklands Automotive Limited | Wholesale & retail | 2008 |
| Oakmoor AP Ltd | Education | 2025 |
| OB Portum Veniens Limited | Wholesale & retail | 2020 |
| Obstetric Medico Legal Ltd | Professional & scientific | 2015 |
| Oceanview Roofing Co Ltd | Construction | 2025 |
| Office HQ Limited | Professional & scientific | 2009 |
| Oggrp Limited | Real estate | 2023 |
| OJM Pubs Ltd | Hospitality | 2024 |
| Okoku Spark Ltd | Real estate | 2021 |
| Old Property Ltd | Construction | 2021 |
| Oldbury Storage Limited | Real estate | 2015 |
| Oldest Bear Ltd | Construction | 2019 |
| Omroad Ltd | Professional & scientific | 2024 |
| OMS Land & Property Limited | Construction | 2022 |
| One Tile Ceramic Limited | Wholesale & retail | 2020 |
| ONE-7-ELEVEN Ltd | Professional & scientific | 2025 |
| Opal Lettings & Property Management Ltd | Other services | 2017 |
| Optima Property Services Limited | Construction | 2005 |
| Orchard Gate (Bradley Stoke) Management Company Limited | Households | 2001 |
| Orchard View Management Limited | Households | 2006 |
| Orrery Recruitment Ltd | Administrative & support | 2010 |
| Oryx Office & Fitted Furniture Installations (Cardiff) Ltd | Construction | 2020 |
| Oscom Limited | Extraterritorial | 1993 |
| Otium Capital Limited | Professional & scientific | 2017 |
| Otium Partners Ltd | Administrative & support | 2017 |
| Out-Right Gear Ltd | Wholesale & retail | 2000 |
| Outerspace Garden Design & Build Limited | Administrative & support | 2011 |
| Outsourced Manufacturing Services Ltd | Manufacturing | 2016 |
| Ovano-Uk Ltd | Wholesale & retail | 2020 |
| OWL in the Oak Limited | Hospitality | 2023 |
| OZ Mobile Barber Ltd | Other services | 2021 |
| Ozbox Fitness Ltd | Other services | 2022 |
| P & a Properties (Bristol) Limited | Real estate | 2025 |
| P B Design Holdings Limited | Financial services | 2007 |
| P.W.F. Metal Supply Limited | | 1984 |
| Pace Partnership Ltd | Financial services | 2020 |
| Pacific House Management Co. Ltd | Real estate | 2020 |
| Pale Blue T/A Pale Blue Clothing Limited | Wholesale & retail | 2009 |
| Palm Equipment International Limited | Manufacturing | 1986 |
| Paolor Limited | Professional & scientific | 2013 |
| Papa Tango Services Limited | Information & communication | 2025 |
| Paragon Farm Ltd | Real estate | 2017 |
| Paragon Garden Design Limited | Administrative & support | 2011 |
| Pardus Mediation Ltd | Administrative & support | 2018 |
| Parkers Investment Property Ltd | Real estate | 2024 |
| Parklands (Management) Limited | Households | 1974 |
| PAT Ward Consulting Limited | Professional & scientific | 2017 |
| Pathway Distribution Limited | Transport & logistics | 1992 |
| Paul Dickinson Coaching Limited | Education | 2007 |
| Paul Howse Electrical Services Limited | Construction | 2011 |
| Paul Lovell Sales Limited | Wholesale & retail | 2017 |
| PB Design and Developments Limited | Manufacturing | 1979 |
| PB Design Employee Trustee Limited | Extraterritorial | 2014 |
| Peachy Rentals Ltd | Real estate | 2018 |
| Peacock Property Management Limited | Real estate | 2011 |
| Peak Designs (South West) Limited | Construction | 2005 |
| Peaks Hospitality Ltd | Hospitality | 2026 |
| Pelofay Limited | Education | 2020 |
| Pendennis Management Limited | Households | 1984 |
| Pendennis Park (Bristol) Management Company Limited | Households | 2005 |
| Penfold Group Limited | Information & communication | 2019 |
| Pengy Properties Ltd. | Real estate | 2005 |
| Penney Property Limited | Real estate | 2017 |
| Pennywig Limited | Real estate | 2018 |
| Perfecta Windows (UK) Ltd | Manufacturing | 2011 |
| Permission to Rest Limited | Health & social care | 2025 |
| Pete Rawlins Limited | Construction | 2025 |
| Pete Rollings & SON Limited | Construction | 2002 |
| Peter Mumby (Projects) Limited | Construction | 2025 |
| Peter Mumby Limited | Real estate | 2013 |