| Oxford & Country Planning Ltd. | Administrative & support | 2020 |
| Oxford Respiratory Ltd | Health & social care | 2026 |
| P & E Homes (Cotswolds) Ltd | Real estate | 2020 |
| P F W Paterson Ltd | Administrative & support | 2025 |
| P4 Global Ltd | Professional & scientific | 2020 |
| Packwood Estates Limited | Real estate | 1981 |
| Paddle Brook Barns Residents Management Company Limited | Administrative & support | 2002 |
| Padel 22 Ltd | Professional & scientific | 2024 |
| Paice Family Trustee Limited | Extraterritorial | 2022 |
| Paramount Consulting Engineers Ltd | Real estate | 2021 |
| Paramount Structures Limited | Professional & scientific | 2018 |
| Parkinson Property Developments Limited | Construction | 2025 |
| Parkinson Property Holdings Limited | Real estate | 2022 |
| Pathfinder Strategic Limited | Professional & scientific | 2017 |
| Pearsons Ciderworks Ltd | Manufacturing | 2013 |
| Peelers Court (Moreton) Management Company Limited | Households | 2014 |
| Pegaia Limited | Financial services | 2025 |
| Pegasus Performance Limited | Arts & recreation | 2017 |
| Pencil Factory Limited | Information & communication | 2020 |
| People Performance Partnership Projects Limited | Professional & scientific | 2011 |
| Peter J Malcom Ltd | Manufacturing | 2023 |
| Pettifer Investments (Holyhead) Limited | Real estate | 2003 |
| Pettifer Investments Limited | Professional & scientific | 2005 |
| Pettifer Leisure Limited | Extraterritorial | 2007 |
| PHB Consultancy Services Ltd | Professional & scientific | 2025 |
| Philip Ireland Competitions Limited | Administrative & support | 2025 |
| Phillips Racing Limited | Arts & recreation | 1992 |
| Phi’S Food Ltd | Manufacturing | 2025 |
| Pilgrim Drinks Consultancy Limited | Professional & scientific | 2025 |
| Pimm & Co Ltd | Professional & scientific | 2021 |
| Pink Elephant Interiors Limited | Professional & scientific | 2023 |
| Planet Vanity Limited | Other services | 2007 |
| Plants for Health Ltd | Professional & scientific | 2022 |
| Pompano Investments Limited | Professional & scientific | 2020 |
| Porsche Club GB Motorsport Limited | Other services | 2002 |
| Power Mesh Limited | Administrative & support | 2016 |
| PQ UK Ltd | Real estate | 2009 |
| Pqgb LLP | | 2009 |
| Pressed OUT Ltd | Other services | 2015 |
| Promethean Developments 2 Limited | Real estate | 2024 |
| Promethean Developments Ltd | Construction | 2022 |
| Promethean Estates Limited | Financial services | 2024 |
| Promethean Lending Limited | Construction | 2022 |
| Property Quest Limited | Real estate | 1986 |
| PT Construction (Cotswolds) Ltd | Construction | 2017 |
| Purple Cleaning Ltd | Administrative & support | 2020 |
| PW Brown Ltd | Construction | 2015 |
| Quadquest Ltd | Arts & recreation | 2020 |
| Quest Executive Development Limited | Information & communication | 2010 |
| RAJ Mahal Fine Dining Ltd | Hospitality | 2021 |
| RAJ Mahal Indian Dining Ltd | Hospitality | 2026 |
| Rapt Limited | Manufacturing | 1999 |
| RAR Brothers Ltd | Hospitality | 2018 |
| Ratty BAG Company Limited | Extraterritorial | 2022 |
| Red Creative Limited | Professional & scientific | 2005 |
| Red to Green Limited | Professional & scientific | 2003 |
| Redlands Consulting Limited | Professional & scientific | 2013 |
| Reece's Travel Ltd | Administrative & support | 2024 |
| Remote Process Support Ltd | Manufacturing | 2023 |
| Rennsport Ltd | Manufacturing | 2012 |
| Restoreacar Limited | Wholesale & retail | 2015 |
| RFP Stow Ltd | Manufacturing | 2016 |
| RFP Stratford Ltd | Manufacturing | 2014 |
| Rhona & Reeves Ltd | Wholesale & retail | 2017 |
| Ridge & Furrow Lavender Limited | Wholesale & retail | 2024 |
| Risk and Forensics Ltd | Professional & scientific | 2024 |
| Rixy's Limited | Hospitality | 2021 |
| RJC Hospitality Ltd | Hospitality | 2021 |
| Rmly Investments Limited | Real estate | 2025 |
| ROC International Holdings Limited | Extraterritorial | 2007 |
| Rock Solid Rigs Ltd | Wholesale & retail | 2020 |
| Rolph Court Management Limited | Real estate | 2012 |
| Rosa Partners Ltd | Professional & scientific | 2021 |
| Roth Montasse Limited | Professional & scientific | 2020 |
| Round Path Ltd | Professional & scientific | 2019 |
| RPS (Cotswolds) Limited | Construction | 2023 |
| RU Design Ltd | Wholesale & retail | 2025 |
| S Barnard Limited | Construction | 2002 |
| S'Porter 2009 Limited | Professional & scientific | 2009 |
| Sabre (UK) Ltd | Professional & scientific | 2007 |
| Sakura Restaurant Ltd | Hospitality | 2022 |
| Salvete Limited | Financial services | 2026 |
| Saxty Limited | Professional & scientific | 2016 |
| SB Smoked Salmon Ltd | Manufacturing | 2017 |
| SCW Beale Limited | Professional & scientific | 2020 |
| Secos (Partners) Limited | Professional & scientific | 2010 |
| Secure Impact Ltd | Information & communication | 2021 |
| Serenity Films Ltd | Arts & recreation | 2023 |
| Sewn Right Limited | Manufacturing | 2017 |
| Seymour Gate Residents Association Limited | Households | 1988 |
| Seymour-Smith Architects Limited | Professional & scientific | 2013 |
| SGB Transport 32 Ltd | Transport & logistics | 2024 |
| SIB Tech Limited | Wholesale & retail | 2011 |
| Sntial Business Services Counsel Limited | Professional & scientific | 2022 |
| Sonazen Stays Ltd | Real estate | 2025 |
| South West Tyres Ltd | Wholesale & retail | 2026 |
| Spero Invictus Consulting Ltd | Professional & scientific | 2025 |
| Spinning FOX Limited | Information & communication | 2019 |
| Spirit Organics Ltd | Other services | 2003 |
| Spiritual Sojourn Limited | Extraterritorial | 2009 |