| Power Tools Direct Online Limited | Wholesale & retail | 2010 |
| Powerboat Marine Ltd | Wholesale & retail | 2017 |
| Powerbronze Holdings Limited | Real estate | 1984 |
| Powerbronze Limited | Extraterritorial | 1997 |
| Precious Assets Ltd | Wholesale & retail | 2020 |
| Precise Vans Ltd | Wholesale & retail | 2020 |
| Precision Court Residents Company Limited | Households | 2015 |
| Precision Mortgage Solutions Ltd | Financial services | 2020 |
| Precision Roofing Services Ltd | Construction | 2020 |
| Premier Barbers Angmering Ltd | Other services | 2020 |
| Present Tense Limited | Wholesale & retail | 2016 |
| Preso Ltd | Professional & scientific | 2016 |
| Prestige Rustington Ltd | Other services | 2024 |
| Preston Hall Residents Association Limited | Administrative & support | 1988 |
| Prime Compliance and Safety Limited | Professional & scientific | 2026 |
| Priory Forge Residents Limited | Real estate | 2017 |
| Pro Audio London Ltd | Administrative & support | 2010 |
| Pro Clean Rustington Ltd | Administrative & support | 2024 |
| Pro Finish Plastering Services Limited | Construction | 2024 |
| Process Installations Ltd | Manufacturing | 1962 |
| Progress Psychology Limited | Professional & scientific | 2019 |
| Project 360 Limited | Information & communication | 2005 |
| Project Self Co Ltd | Manufacturing | 2024 |
| Prometheus Forensic Services Ltd | Administrative & support | 2011 |
| Pronto Car Cosmetix Ltd | Wholesale & retail | 2017 |
| Property Compliance Experts Ltd | Construction | 2026 |
| Protecta Mortgages Ltd | Financial services | 2023 |
| Prototek Ltd | Professional & scientific | 1998 |
| Prototypical Engineering Ltd | Manufacturing | 2018 |
| Proximal Education Ltd | Education | 2021 |
| Pryor Projects Limited | Professional & scientific | 2018 |
| PSI Irrigation Limited | Manufacturing | 2014 |
| PSI Stanek Pumps Limited | Manufacturing | 2020 |
| PSW Property Limited | Real estate | 2026 |
| Psyros Diagnostics Ltd | Professional & scientific | 2018 |
| Pubpayers Limited | Hospitality | 2024 |
| Pulse Building Services Ltd | Construction | 2025 |
| Pulse Property Investments Limited | Administrative & support | 2020 |
| Pump Engineering Ltd. | Manufacturing | 1974 |
| Purple Aubergine Limited | Extraterritorial | 2013 |
| Purple Squirrel Group Ltd | Professional & scientific | 2013 |
| Putney Flowers Ltd | Wholesale & retail | 2013 |
| PV (NHA 1) Ltd | Energy | 2012 |
| PV (NHA 2) Ltd | Energy | 2012 |
| PV (R&C 1) Ltd | Energy | 2012 |
| PV (RRA 1) Ltd | Energy | 2012 |
| PV (RRA 2) Limited | Energy | 2012 |
| PV NO 1 Ltd | Energy | 2011 |
| PV NO 2 Limited | Energy | 2011 |
| QOD Fine Jewellery Limited | Wholesale & retail | 2025 |
| QRQ Limited | Real estate | 2012 |
| Quality Suspended Ceilings Ltd | Construction | 2007 |
| Quick Synergy Ltd | Information & communication | 2015 |
| Quickbirds Ltd | Health & social care | 2019 |
| Quickshort Ltd | Professional & scientific | 2025 |
| Quiet Waters Management Company Limited | Households | 2020 |
| Quinta Carmen Residents Association Limited | Households | 1987 |
| QV Nails Ltd | Other services | 2026 |
| R & a Television Ltd | Manufacturing | 2016 |
| R Clarke Planning Limited | Professional & scientific | 2012 |
| R D O Limited | Professional & scientific | 2010 |
| R Linton Racing Ltd | Arts & recreation | 2024 |
| R Short & Sons Ltd | Construction | 2022 |
| R T Electrical Services Limited | Construction | 2015 |
| R.K’S Taste of Jamaica Ltd | Hospitality | 2024 |
| R.Lindsay,Limited | Real estate | 1924 |
| R2R (Services) Ltd | Real estate | 2018 |
| Rachel Adedeji Ltd | Arts & recreation | 2017 |
| Rachel Spotswoode Limited | Professional & scientific | 2016 |
| Radiant Holdings Limited | Financial services | 2020 |
| Radiant Lettings Limited | Hospitality | 2024 |
| Rafft Ltd | Information & communication | 2025 |
| Rainedale Ltd | Administrative & support | 2011 |
| Ralphs Removals Limited | Transport & logistics | 2003 |
| Ramonarides Ltd | Transport & logistics | 2026 |
| Ramsay Brickwork Ltd | Construction | 2025 |
| Ramsay Roofing Ltd | Construction | 2025 |
| Rarebreed Clothing Limited | Wholesale & retail | 2025 |
| Rascals After School Club Limited | Health & social care | 2017 |
| Ravencourt Partners Limited | Professional & scientific | 2009 |
| RAW Energy Pursuits Ltd | Arts & recreation | 2010 |
| RAW Group Sussex Ltd | Households | 2025 |
| RAW Heating Ltd | Construction | 2025 |
| Rawlinson Group Ltd | Administrative & support | 2025 |
| RCK Properties Ltd | Real estate | 2025 |
| RDJ Building Services Consultants Ltd | Construction | 2016 |
| Re-Link Ltd | Real estate | 2005 |
| Reaching Families Limited | Health & social care | 2012 |
| Reclaim in Spain Limited | Financial services | 2014 |
| Recovery Retreat Sussex Ltd | Health & social care | 2025 |
| Rectus Solutio Limited | Information & communication | 2009 |
| Recycled Cycles Ltd | Wholesale & retail | 2025 |
| Red Flex Services Limited | Manufacturing | 2018 |
| Redhill Site 1 LLP | | 2009 |
| Redhill Site 2 LLP | | 2009 |
| Redwood Court Residents' Association Limited | Households | 1997 |
| Reed Removals Limited | Transport & logistics | 2013 |
| Reeves and Sons Jewellery Limited | Wholesale & retail | 2017 |
| Reeves Wilkinson Limited | Professional & scientific | 2003 |
| Refresh Painting & Decorating Limited | Other services | 2015 |