| Oak & Thames Estates Ltd | Real estate | 2026 |
| Obsidian Supported Living Limited | Extraterritorial | 2024 |
| OMA Property Lettings Limited | Real estate | 2019 |
| Omega Stormwater Limited | Construction | 2024 |
| One Academy Trust | Education | 2014 |
| Onlyconnect Systems Limited | Information & communication | 1999 |
| Open House Erewash Ltd | Real estate | 2025 |
| Optimise Accountants Limited | Professional & scientific | 2003 |
| Orbital Vision & Marketing Ltd | Information & communication | 2015 |
| Orchard Properties (London) Ltd | Real estate | 2018 |
| Ornami Imports Limited | Wholesale & retail | 2017 |
| OUR House Waingroves Limited | Hospitality | 2016 |
| OUR Property Future Ltd | Real estate | 2016 |
| Outsourcecloud Limited | Professional & scientific | 2023 |
| P5E Limited | Education | 2014 |
| Pairaduxx Studios Limited | Information & communication | 2024 |
| PAL Portfolio Ltd | Real estate | 2021 |
| Palmer Drive Properties Limited | Real estate | 2014 |
| Panco Lettings Limited | Real estate | 2020 |
| Park Lane S.E. Limited | Real estate | 1999 |
| Patchwell Health Limited | Health & social care | 2018 |
| Paul Mcgregor Foundation CIC | Arts & recreation | 2020 |
| Paulus & Brown Ltd | Manufacturing | 2010 |
| PCA Design Limited | Professional & scientific | 2025 |
| PEM Holdings Ltd | Manufacturing | 2015 |
| Phoenix Rentals Ltd | Real estate | 2012 |
| Pinetree Property Solutions Limited | Real estate | 2018 |
| Piotrex Ltd | Transport & logistics | 2025 |
| PJB Flooring Specialists Limited | Construction | 2004 |
| PJP Property Management Limited | Real estate | 2026 |
| Planetary Road Limited | Extraterritorial | 1936 |
| Plasyl Limited | Administrative & support | 2010 |
| Plasylco Limited | Financial services | 2023 |
| Plumbob Projects Limited | Financial services | 2025 |
| Pluto Blue Solutions Limited | Information & communication | 2018 |
| Pohutukawa Properties Limited | Real estate | 2019 |
| Precise HR Ltd | Administrative & support | 2014 |
| Precisehr (South East) Ltd | Administrative & support | 2020 |
| Premier Midlands Catering Services Ltd | Hospitality | 2010 |
| PRF Property Limited | Real estate | 2020 |
| Price Reece Property Services Ltd | Real estate | 2022 |
| Primary Care Plus CIC | Health & social care | 2017 |
| Prime Electrical Contractors Ltd | Construction | 2014 |
| Priory Construction (Kent) Ltd | Real estate | 2011 |
| Professional Pest Control Ltd | Professional & scientific | 2019 |
| Progress H Ltd | Education | 2018 |
| Propertivity Limited | Real estate | 2024 |
| Property 65 Ltd | Real estate | 2024 |
| Property Angels Leeds Ltd | Real estate | 2014 |
| Property Driven Holdings Ltd | Real estate | 2026 |
| Property Driven Investments Limited | Real estate | 2017 |
| Property Driven Lets Limited | Real estate | 2026 |
| Prudent Holdings Limited | Financial services | 2024 |
| Prudent Land & Buildings Limited | Construction | 2024 |
| PS61 Limited | Real estate | 2018 |
| Quidditch Limited | Financial services | 2001 |
| Quirky Properties Ltd | Real estate | 2023 |
| Rada Medicals Limited | Health & social care | 2017 |
| Rangemaster Classic Limited | Extraterritorial | 1923 |
| Rangemaster Cookshop Limited | Extraterritorial | 1993 |
| Rangemaster Limited | Extraterritorial | 1988 |
| Rangemaster Products Limited | Extraterritorial | 1934 |
| Rayburn Cooking & Heating Appliances Limited | Financial services | 1896 |
| RBS Capital Ltd | Real estate | 2025 |
| RC Health Serv Ltd | Health & social care | 2024 |
| Real Assets Property Group Limited | Real estate | 2019 |
| Redferns Removals and Storage Limited | Information & communication | 1990 |
| Redfyre Cookers Limited | Extraterritorial | 1961 |
| Residential Key Ltd | Real estate | 2014 |
| Restore Looks Ltd | Other services | 2024 |
| Restore Your Hair Ltd | Other services | 2024 |
| Rhombus Nexus Limited | Financial services | 2026 |
| Rhombus Property Limited | Real estate | 2014 |
| Rise & Recline Ltd | Manufacturing | 2001 |
| River Calder Consultants Ltd | Professional & scientific | 2018 |
| RJP Consulting & Management Limited | Construction | 2018 |
| RM Tax & Accountancy Limited | Professional & scientific | 2014 |
| RNB Investments Ltd | Real estate | 2024 |
| Rocks Property Services Limited | Real estate | 2019 |
| Roseabelle Limited | Administrative & support | 2013 |
| Rowells Drinking Emporium Limited | Hospitality | 2021 |
| Royce Chemicals Limited | Manufacturing | 1979 |
| Run Solutions Ltd | Transport & logistics | 2019 |
| Rwgm Properties Ltd | Real estate | 2026 |
| Ryan and Jones Limited | Financial services | 2023 |
| S.H.Electrical & Testing Limited | Energy | 2012 |
| S.L.N. Hold Ltd | Financial services | 2023 |
| Safety 1ST UK Ltd | Professional & scientific | 2023 |
| Salt Circle Productions Limited | Arts & recreation | 2021 |
| Salutem International Ltd | Wholesale & retail | 2019 |
| Sanco Technology Europe Limited | Manufacturing | 2026 |
| Sarll Homes Limited | Real estate | 2023 |
| Sashol Lettings Ltd | Real estate | 2024 |
| Scalear Solutions Ltd | Wholesale & retail | 2022 |
| Scout Activity Training Ltd | Arts & recreation | 2017 |
| SD Electricial Engineering Services Ltd | Construction | 2025 |
| Serendipity Homes and Interiors Ltd | Real estate | 2022 |
| Severin Films (UK) Ltd | Administrative & support | 2017 |
| Sharpe Construction Ltd | Construction | 2009 |
| Shazzahra Properties Limited | Real estate | 2016 |