| Property Prime Solutions Ltd | Construction | 2023 |
| Property Solutions (South) Limited | Real estate | 2022 |
| Propertys 4 U Ltd | Construction | 2025 |
| Propteam Ltd | Arts & recreation | 2019 |
| Propter Ltd | Financial services | 2018 |
| Prosafe Consultants Limited | Professional & scientific | 2014 |
| Prosearch Asset Solutions Limited | Financial services | 1987 |
| Prosperon Networks Ltd | Information & communication | 2006 |
| Prostaff DJ Management Limited | Arts & recreation | 2015 |
| Protec Mechanical and Electrical Ltd | Construction | 2018 |
| Protected Shield Ltd | Real estate | 2016 |
| Protection Holdings Limited | Financial services | 2024 |
| Protectuk Limited | Other services | 2020 |
| Protexu Ltd | Wholesale & retail | 2017 |
| Protoforge Ltd | Manufacturing | 2025 |
| Proudmoore Limited | Information & communication | 2018 |
| Prowling Tiger Media Ltd | Professional & scientific | 2025 |
| PRP Educational Services Limited | Education | 2017 |
| PRS Bathrooms & Tiling Ltd | Construction | 2025 |
| PRS Ceramics (Fareham) Limited | Construction | 2022 |
| PS Properties (Sussex) Limited | Real estate | 2025 |
| PS Property Solutions (Southern) Ltd | Real estate | 2020 |
| PSL Controls Ltd | Manufacturing | 2018 |
| Psychology Sussex Limited | Health & social care | 2009 |
| PT Energy & Efficiencies Ltd | Construction | 2025 |
| Public House Ltd | Hospitality | 2022 |
| Publishing Push Ltd | Professional & scientific | 2014 |
| Pubshaw Ltd | Hospitality | 2018 |
| Puleside Developments Ltd | Construction | 2023 |
| Puleside Investments Limited | Administrative & support | 2012 |
| Pull Position Ltd | Wholesale & retail | 2026 |
| Puma Heritage Limited | Financial services | 2012 |
| Pumpkin Property Enterprises Ltd | Real estate | 2021 |
| Puna Growth Investments Limited | Real estate | 2021 |
| Punctual Precisions (Southern) Limited | Arts & recreation | 1966 |
| Punter Family Investments Limited | Professional & scientific | 2021 |
| Punter Investments Limited | Professional & scientific | 2021 |
| Pup-Up Ltd | Real estate | 2014 |
| Puppets With Guts Ltd | Arts & recreation | 2018 |
| Purbrook Software Solutions Ltd | Information & communication | 2023 |
| Pure Inventories Ltd | Administrative & support | 2011 |
| Pure Wedding Films Limited | Professional & scientific | 2025 |
| Purple Cheetah Cosmetics Ltd | Wholesale & retail | 2013 |
| Purple Exterior Solutions Limited | Construction | 2021 |
| Purple Goat Solutions Limited | Professional & scientific | 2020 |
| Purple Room Inventories Ltd | Professional & scientific | 2018 |
| Purrbark Limited | Professional & scientific | 2013 |
| Puthuva Events and Entertainments UK Ltd | Hospitality | 2025 |
| Putting-Guru.Com Limited | Education | 2024 |
| Puuntt Ltd | Wholesale & retail | 2026 |
| PWA Vision Systems Limited | Information & communication | 2009 |
| Pwfm Consultancy Ltd | Professional & scientific | 2025 |
| Pwhb Consulting Limited | Professional & scientific | 2025 |
| Q Leisure (Holdings) Limited | Financial services | 2024 |
| Q Leisure Limited | Arts & recreation | 2003 |
| Q-Cel Ltd | Wholesale & retail | 1997 |
| Qarban Ltd | Administrative & support | 2018 |
| Qcel Trustee Limited | Manufacturing | 2025 |
| Qfitt Partitions and Ceilings Limited | Construction | 2025 |
| Qontra Ltd | Wholesale & retail | 2024 |
| QP Compliance Ltd | Professional & scientific | 2024 |
| QT Properties Ltd | Real estate | 2022 |
| Qtell Limited | Information & communication | 2026 |
| Quaal Ltd | Professional & scientific | 2022 |
| Quadangle Limited | Administrative & support | 2014 |
| Quadrant (Southern) Limited | Hospitality | 2012 |
| Quadrant Construction (South Coast) Limited | Construction | 2011 |
| Quadrille Properties Limited | Transport & logistics | 2001 |
| Quality Catering Equipment Limited | Manufacturing | 1985 |
| Quality Franchise Association | Other services | 2018 |
| Quality Kwik DRY Cleaning Limited | Other services | 2002 |
| Quality Partitions & Ceilings Ltd | Construction | 2018 |
| Quality Training & Skills Development Limited | Education | 2016 |
| Quantum Heat C.I.C. | Professional & scientific | 2012 |
| Quattour Limited | Administrative & support | 2016 |
| Quayle Dental Export Ltd | Administrative & support | 2022 |
| Queensborough Court Management Limited | Households | 1993 |
| Queensbridge Care Limited | Health & social care | 2004 |
| Quendale Court Management Company Limited | Extraterritorial | 1999 |
| Quicksilver Despatch Limited | Real estate | 1998 |
| Quinag Consulting Limited | Professional & scientific | 2018 |
| Quinn QS Limited | Professional & scientific | 2018 |
| Quomentum Ltd | Professional & scientific | 2017 |
| Qwas Limited | Professional & scientific | 2009 |
| QZ Marketing Limited | Professional & scientific | 2014 |
| R & B Garage Services Ltd | Wholesale & retail | 2006 |
| R & G Dedicated Logistics Limited | Transport & logistics | 2023 |
| R & J Dixon Limited | Wholesale & retail | 2017 |
| R B Heating Solutions Ltd | Construction | 2016 |
| R C Ltd | Wholesale & retail | 2003 |
| R D T Technology Limited | Manufacturing | 2005 |
| R F George & Co Limited | Professional & scientific | 2006 |
| R F Mowbray Construction Services Limited | Construction | 2011 |
| R F Total Solutions Limited | Information & communication | 2002 |
| R H Electrical Engineering Limited | Construction | 2018 |
| R L Wagner Limited | Information & communication | 2010 |
| R T Lister Limited | Administrative & support | 2022 |
| R W Hilder & Co Limited | Extraterritorial | 2014 |
| R&B Consultancy Limited | Professional & scientific | 2005 |
| R&J Consultancy RS (London) Ltd | Administrative & support | 2018 |