| Phoebe Gaydon Consulting Ltd | Professional & scientific | 2024 |
| Phoenix Energy &Property Services Ltd | Construction | 2022 |
| Phutty Studios Ltd | Information & communication | 2008 |
| Pilates Please Ltd | Health & social care | 2020 |
| Pimplos Investments Limited | Households | 2015 |
| Pimys Ltd | Administrative & support | 2008 |
| Pine Contracts Limited | Real estate | 2021 |
| Pinfold & Co Limited | Extraterritorial | 2003 |
| Pinfold Business Services Limited | Real estate | 1995 |
| Pinfold Outsourcing Limited | Professional & scientific | 2018 |
| Pink Sands Ltd | Professional & scientific | 2020 |
| Pink Star Enterprises Limited | Information & communication | 2018 |
| Pinnacle Kitchen Ltd | Wholesale & retail | 2025 |
| Pioneers Post Community Interest Company | Professional & scientific | 2011 |
| Pipesafe Heating Ltd | Construction | 2019 |
| Pitstop OUT of School Club Community Interest Company | Education | 2014 |
| Pixel Perfect Photography Ltd | Professional & scientific | 2023 |
| PJA Contractors Ltd | Transport & logistics | 2025 |
| Pjmm Associates Limited | Real estate | 1999 |
| Plaice Design Company Limited | Professional & scientific | 2011 |
| Plainjane Home Design Ltd | Professional & scientific | 2024 |
| Plant Well Farms LLP | | 2024 |
| PLH Systems Ltd | Manufacturing | 2018 |
| Poler Ltd | Professional & scientific | 2014 |
| Polly Pickle Design Ltd | Administrative & support | 2017 |
| Polymuse Limited | Professional & scientific | 2003 |
| Poplar Park Equestrian Centre LLP | | 2023 |
| Porcious UK Ltd | Wholesale & retail | 2025 |
| Portabello Developments Ltd | Construction | 2017 |
| Portion Ltd | Hospitality | 2025 |
| Potash Farm Limited | Agriculture & fishing | 2020 |
| Potsford Bridge Group Ltd | Construction | 2020 |
| Potsford Farm Ltd | Agriculture & fishing | 2010 |
| Pracademics Limited | Administrative & support | 2019 |
| Precogrecog Ltd | Information & communication | 2025 |
| Premiair Aerospace Limited | Manufacturing | 2013 |
| Premiair Aircraft Sales Limited | Transport & logistics | 2008 |
| Premiair Aviation International Limited | Manufacturing | 2013 |
| Premiair Business Aviation Limited | Transport & logistics | 2009 |
| Premier Gold Mach International Limited | Manufacturing | 2024 |
| Premium Merch Branding Ltd | Administrative & support | 2012 |
| Preston Logistics Ltd | Transport & logistics | 2026 |
| Prime Convenience Ltd | Wholesale & retail | 2022 |
| Prime Purchasing Organisation Limited | Other services | 2011 |
| Process Plant Technology Limited | Extraterritorial | 2002 |
| Propeller Design Limited | Real estate | 1994 |
| Property Pressure Clean Ltd | Administrative & support | 2025 |
| Proxiot Limited | Information & communication | 2015 |
| Pt-Mitton Group Limited | Financial services | 2024 |
| Ptgsoft Ltd | Information & communication | 2025 |
| PTM Flooring Ltd | Construction | 2024 |
| Public Policy Unit Limited | Information & communication | 1985 |
| Pump Street Investments Ltd | Financial services | 2024 |
| Pure Salt Limited | Wholesale & retail | 2013 |
| Purple Highways Ltd | Information & communication | 2020 |
| Purple Stars and Rainbows Ltd | Wholesale & retail | 2025 |
| PVC U Direct (Franchising) Limited | Construction | 2001 |
| Pvcu Direct (Aldridge) Limited | Construction | 2010 |
| Pyghtle 1969 Limited | Extraterritorial | 2015 |
| Quad-P Limited | Real estate | 2025 |
| Quay Interactions Limited | Professional & scientific | 2006 |
| Quilter Park Limited | Administrative & support | 2020 |
| R & R Energy Limited | Manufacturing | 2015 |
| R H & R Paul Limited | Agriculture & fishing | 2025 |
| R J Harold Ltd | Professional & scientific | 2013 |
| R M Phoenix Limited | Manufacturing | 2002 |
| R P Mayhew Ltd | Construction | 2002 |
| R T T Services (Plumbing & Heating) Limited | Construction | 2005 |
| R W Parry Farming Ltd | Agriculture & fishing | 2018 |
| R&J Wealth Ltd | Professional & scientific | 2022 |
| R.C. Engineering (Suffolk) Limited | Agriculture & fishing | 2000 |
| Radgrade Limited | Real estate | 1980 |
| Raedwald Holdings Ltd | Real estate | 2022 |
| Railway on Tour Ltd | Hospitality | 2025 |
| Rainbird Group Ltd | Construction | 1972 |
| Rallyxtreme Limited | Wholesale & retail | 2002 |
| Ramsholt Fairway Committee Limited | Real estate | 2021 |
| Ranmere Investments Limited | Administrative & support | 2015 |
| Ransomes Park Limited | Real estate | 1937 |
| Ranson Heritage Ltd | Real estate | 2026 |
| Raspberry Software Systems Limited | Information & communication | 2012 |
| Razor Futures Ltd | Financial services | 2011 |
| RD Windows and Doors Limited | Construction | 2022 |
| RDB IT Consulting Ltd | Information & communication | 2023 |
| Reborn Consultancy Limited | Professional & scientific | 2025 |
| Reclaim Rescue Ltd | Professional & scientific | 2019 |
| Reconnect Coaching Limited | Professional & scientific | 2018 |
| Recording Logistics Limited | Arts & recreation | 2003 |
| Red Bear Holding Company Ltd | Financial services | 2023 |
| Red House Garden Stables Ltd | Wholesale & retail | 2020 |
| Red House Textiles Ltd | Wholesale & retail | 2014 |
| Red Stag Training Limited | Education | 2014 |
| Red Star Campers Ltd | Administrative & support | 2022 |
| Redstone Mews Management Two Limited | Other services | 2013 |
| Reel Dynamics Ltd | Information & communication | 2020 |
| Reico Wealth Limited | Professional & scientific | 2014 |
| Reilly Services Ltd | Real estate | 2020 |
| Renaissance Consulting Associates Limited | Real estate | 2001 |
| Renat Investments Ltd | Real estate | 2017 |
| Renat Property Limited | Real estate | 2013 |