| Pioneer Renovations Limited | Construction | 2025 |
| Pipeline Servicing Ltd | Administrative & support | 2014 |
| Piper Holdings Ltd | Hospitality | 2017 |
| Pipetec Solutions Ltd | Professional & scientific | 2014 |
| Piping Evolution Ltd | Construction | 2018 |
| Pipistrelle Close (Fleggburgh) Management Company Limited | Households | 2019 |
| Pixies With Purpose C.I.C. | Administrative & support | 2026 |
| Pizza 4U GYT Limited | Education | 2026 |
| PJG Consulting Ltd | Construction | 2022 |
| Plan B Developments Ltd | Construction | 2020 |
| Plan B Management Solutions Limited | Water & waste | 2006 |
| Plant Scaffold Solutions Ltd | Construction | 2025 |
| Platinum Digital Ltd | Information & communication | 2017 |
| Playford Enterprises Limited | Professional & scientific | 1993 |
| Plex Invest Limited | Extraterritorial | 2024 |
| Pluk Limited | Wholesale & retail | 2019 |
| PNG Electrical Limited | Construction | 2013 |
| Pocket Dentist Ltd | Health & social care | 2020 |
| Pole Fusion Limited | Arts & recreation | 2023 |
| Polidano Property Limited | Real estate | 2017 |
| Pollard Real Estate Ltd | Real estate | 2025 |
| Polycastle Limited | Wholesale & retail | 1991 |
| Polycastle Nu-Span Limited | Wholesale & retail | 1999 |
| Poppy Gardens Management Company Limited | Households | 2006 |
| Portland Views Management Residents Association Limited | Other services | 2003 |
| Portuga Ltd | Transport & logistics | 2019 |
| Poseidon Energy Services Limited | Mining & quarrying | 2025 |
| Potato Diary Ltd | Information & communication | 2023 |
| Potgieter 2 Ltd | Health & social care | 2022 |
| Powerflow Norwich Limited | Manufacturing | 2026 |
| Pownall & Sons Holdings Limited | Financial services | 2017 |
| Ppar Investment Company Limited | Financial services | 2015 |
| PPH (GY) Ltd | Administrative & support | 2013 |
| PPM Technologies Emea Ltd | Manufacturing | 2010 |
| Praevium Ltd | Professional & scientific | 2025 |
| Pramukham Vision Ltd | Wholesale & retail | 2025 |
| Precision Football Academy Ltd | Arts & recreation | 2025 |
| Precision Pipework Limited | Construction | 1997 |
| Prelangate Limited | Wholesale & retail | 1975 |
| Premier Recycling (Scrap Metal) Limited | Water & waste | 2009 |
| Prestige Construction (EA) Ltd | Construction | 2024 |
| Prestige Home Inspectors Ltd | Professional & scientific | 2007 |
| Price Wise (Yarmouth) Limited | Wholesale & retail | 2026 |
| Prime Car Sales Ltd | Wholesale & retail | 2025 |
| Prime Properties Lettings Ltd | Real estate | 2022 |
| Prime Shine Cleaning Services Ltd | Administrative & support | 2026 |
| Prime Supply Hub Ltd | Wholesale & retail | 2025 |
| Primesafe PAT Testing Limited | Manufacturing | 2026 |
| Prior Diesel Limited | Manufacturing | 2020 |
| Prior Power Solutions Limited | Manufacturing | 1980 |
| Prior Rental Solutions Limited | Manufacturing | 2024 |
| Priorlevel Limited | Real estate | 1988 |
| Priory 1101 Holdings Limited | Financial services | 2025 |
| Priory ST Olaves Ltd | Hospitality | 2020 |
| Pritech Services Limited | Real estate | 1999 |
| Private Oral Health Limited | Health & social care | 2012 |
| PRL Property Development Limited | Construction | 2021 |
| Pro Holiday Ltd | Hospitality | 2016 |
| Pro-Safety Medical Services Ltd | Education | 2025 |
| Pro-Spark (East Anglia) Limited | Construction | 2024 |
| Proactive Publications Limited | Information & communication | 2009 |
| Probe Manufacturing and Fabrication Limited | Manufacturing | 1974 |
| Procommunity C.I.C. | Professional & scientific | 2022 |
| Profi Mini Market Ltd | Wholesale & retail | 2025 |
| Project Advance Bidco Limited | Financial services | 2023 |
| Project Advance Topco Limited | Financial services | 2023 |
| Project Apis CIC | Agriculture & fishing | 2025 |
| Project Poseidon Bidco Limited | Other services | 2021 |
| Project Poseidon Midco Limited | Other services | 2021 |
| Project Poseidon Topco Limited | Other services | 2021 |
| Promod Performance Ltd | Wholesale & retail | 2023 |
| Property Group Investments Ltd | Real estate | 2017 |
| Property Solutions (Norfolk) Limited | Professional & scientific | 2009 |
| Prospect Game Farm Limited | Extraterritorial | 2013 |
| Protech Groundworks Ltd | Construction | 2016 |
| Protegimus Group Ltd | Extraterritorial | 2021 |
| Proteus Industrial Limited | Transport & logistics | 2006 |
| Protofab Ltd | Professional & scientific | 2022 |
| PS Property Specialist Limited | Real estate | 2022 |
| PSC Productions Ltd | Arts & recreation | 2020 |
| PSK Buildings C&R Ltd | Real estate | 2018 |
| PSK Investments Ltd | Administrative & support | 2016 |
| PSR Service & Supply Ltd | Professional & scientific | 2023 |
| PUB on the Shrubs Limited | Hospitality | 2010 |
| PUD Consultancy Limited | Professional & scientific | 2018 |
| Pull My LEG Ltd | Hospitality | 2022 |
| Pulse Padel Club Ltd | Arts & recreation | 2025 |
| Punch (Great Yarmouth) Limited | Professional & scientific | 2011 |
| Pure Architecture Limited | Professional & scientific | 2007 |
| Purepower Electrics Limited | Professional & scientific | 2005 |
| Pyramid Property Solutions Limited | Real estate | 2022 |
| Pyrovision Great Yarmouth CIC | Education | 2025 |
| QF Living Ltd. | Real estate | 2017 |
| QF Properties Ltd. | Real estate | 2017 |
| Qlarxy 2001 Ltd | Hospitality | 2025 |
| Quantic Technologies Ltd | Information & communication | 2020 |
| Quantim Solutions Ltd | Construction | 2025 |
| Quanto Basta Ltd | Professional & scientific | 2024 |
| Quantumriftai Ltd | Information & communication | 2025 |
| Quay Developers Limited | Real estate | 2003 |