| THE Old Fire Station (Rotherhithe) RTM Company Limited | Households | 2010 |
| THE Old Knight Number One Management Company Limited | Households | 2002 |
| THE Old Knight Number Three Management Company Limited | Households | 2003 |
| THE Old Knight Number Two Management Company Limited | Households | 2003 |
| THE Old Police Station (Shrewsbury) Limited | Real estate | 2010 |
| THE Old Tannery (ELY) Management Company Limited | Households | 2020 |
| THE Olga's Office Limited | Administrative & support | 2025 |
| THE Omni Property Group Limited | Real estate | 2017 |
| THE Online Pastry School Limited | Hospitality | 2019 |
| THE Oppong Group Ltd | Real estate | 2026 |
| THE Opportunity Trust | Education | 2025 |
| THE OPS Studio Ltd | Professional & scientific | 2026 |
| THE Optic RTM Company Limited | Households | 2014 |
| THE Orange Simulation Company Limited | Information & communication | 1998 |
| THE Orchard (Meppershall) Management Company Limited | Households | 2017 |
| THE Orchard Brompton Farm (Strood) Residents Management Company Limited | Households | 2015 |
| THE Original Cat Action Trust | Other services | 2009 |
| THE Original Poster Company Limited | Wholesale & retail | 1991 |
| THE Original Roofing Organisation Ltd | Construction | 2018 |
| THE P11D Processor Limited | Professional & scientific | 2016 |
| THE Paddocks (Biddulph) Limited | Households | 2001 |
| THE Paddocks Management Company (Hawthorn) Limited | Households | 1991 |
| THE Paget House Management Company Limited | Households | 2001 |
| THE Paint DOC Limited | Construction | 2022 |
| THE Palette London Beauty Ltd | Information & communication | 2025 |
| THE Pantile Management Company (Westbourne Grove) Limited | Households | 2003 |
| THE Parade (Lichfield) Management Company Limited | Households | 2004 |
| THE Parade Residents Management Company Limited | Households | 2019 |
| THE Park (Gatcombe Road) Management Company Limited | Households | 2005 |
| THE Parkgate Pavilions Management Company Limited | Households | 2008 |
| THE Parsonage Marden Management Company Limited | Households | 2016 |
| THE Pavilion Business Suite Ltd | Real estate | 2023 |
| THE Pavilions (Craven Park) Management Company Limited | Households | 2006 |
| THE Pavilions Management Company (Oxton) Limited | Households | 2005 |
| THE PEA Green Boat Limited | Professional & scientific | 1993 |
| THE Pearson Bicycle Company Limited | Manufacturing | 2017 |
| THE Pendil Partnership LLP | | 2021 |
| THE Pension Property Club Limited | Real estate | 2016 |
| THE People’S Pint Group Limited | Hospitality | 2026 |
| THE Perfect Trip Ltd | Administrative & support | 2023 |
| THE Pet Lodge Limited | Other services | 2011 |
| THE Pgdc Ltd | Education | 2021 |
| THE Pharm-Assistant Ltd | Health & social care | 2023 |
| THE Pines (Hayes) Management Company Limited | Households | 2015 |
| THE Pines Cheltenham Management Limited | Households | 1988 |
| THE Pink Forest Ltd | Wholesale & retail | 2024 |
| THE Planes Management Company Limited | Households | 1994 |
| THE Plumbing Boys Ltd | Construction | 2024 |
| THE Point (II) Woking Management Company Limited | Households | 2006 |
| THE Point (Leasehold) Management Company Limited | Households | 2007 |
| THE Point Management RES. Co. (Clapham) Ltd | Extraterritorial | 2001 |
| THE Poplars (Aylesford) Management Company Limited | Households | 2024 |
| THE Pregnancy Clinic Limited | Health & social care | 2018 |
| THE Print Room Inc 2023 Ltd | Wholesale & retail | 2023 |
| THE Pristine Collective Ltd | Administrative & support | 2025 |
| THE Prom World Ltd | Wholesale & retail | 2025 |
| THE Promenade (H. Vale) Management Company Limited | Households | 2006 |
| THE Propella's (Kings Hill) Management Company Limited | Households | 2007 |
| THE Quadrangle (Earlsfield) Management Company Limited | Households | 2009 |
| THE Quadrangles (Leroy Street) Management Company Limited | Households | 1994 |
| THE Quarter (Chipping Ongar) Management Limited | Households | 2004 |
| THE Racing App Limited | Information & communication | 2024 |
| THE Radius Arms Micropub Limited | Hospitality | 2017 |
| THE Rahman Estate Ltd | Real estate | 2019 |
| THE Range (ST Neots) Management Company Ltd | Households | 2020 |
| THE Real Pizza Group Limited | Hospitality | 2023 |
| THE REC Horsham Limited | Arts & recreation | 2018 |
| THE Reddings NO. 1 Management Company Limited | Households | 2005 |
| THE Redeemed Christian Church of GOD, Trinity Zone | Other services | 2014 |
| THE Redeemed Christian Church of GOD- House of GOD | Other services | 2018 |
| THE Reeds Manco Ltd | Households | 2023 |
| THE Reference Checker (Recruitment) Ltd | Administrative & support | 2014 |
| THE Reference Checker Limited | Extraterritorial | 2016 |
| THE Regal Duck Ltd | Wholesale & retail | 2015 |
| THE Regents (Mill Hill) Management Company Limited | Households | 2003 |
| THE Repair Station Limited | Other services | 2010 |
| THE Residences, Prestwich (Management) Limited | Households | 2002 |
| THE Residents of NO.12 Limited | Households | 1993 |
| THE Ridge (Lyde Green) Management Company Limited | Households | 2016 |
| THE Ridge (Wells Road) Management Company Limited | Households | 2006 |
| THE Ridgeway (Phase II) Management Company Limited | Households | 2004 |
| THE Rigged Stage Company Ltd | Arts & recreation | 2021 |
| THE Rodings Management (Loughton) Company Limited | Households | 2007 |
| THE Rodings Management Company Limited | Households | 2007 |
| THE RUA Group Limited | Information & communication | 2024 |
| THE Russell Group of Companies Limited | Extraterritorial | 1993 |
| THE Russell Partnership (U.K.) Limited | Hospitality | 2009 |
| THE Russell Partnership Dubai Limited | Other services | 1992 |
| THE Russell Partnership Foundation Limited | Hospitality | 2024 |
| THE Russell Partnership Legacy Limited | Hospitality | 2020 |
| THE Safepaye Limited | Professional & scientific | 2025 |
| THE Salterns (Devon) Limited | Households | 2010 |
| THE Samosa Factory UK Limited | Hospitality | 2021 |
| THE Sandilands Club Limited | Arts & recreation | 2003 |
| THE Scentsible Candle Ltd | Manufacturing | 2021 |
| THE Scopes Academy Ltd | Education | 2023 |
| THE Security Training Corporation Ltd | Administrative & support | 2008 |
| THE Selfie Company Inc Ltd | Professional & scientific | 2019 |
| THE Service House Group Limited | Hospitality | 2026 |
| THE SET Dept Ltd | Construction | 2025 |