| Parker Carpentry (East Anglia) Limited | Construction | 2022 |
| Parker Electrical (Norwich) Ltd | Construction | 2023 |
| Parker Electrical and Property Care Ltd | Other services | 2025 |
| Parker Hydraulics and Pneumatics Limited | Wholesale & retail | 1976 |
| Parker James Hairdressing Ltd | Other services | 2019 |
| Parker Norfolk Ltd | Real estate | 2020 |
| Parker Planning Services Ltd | Professional & scientific | 2011 |
| Parker Projects Limited | Construction | 2026 |
| Parker Safe Access Ltd | Construction | 2022 |
| Parkerday Designs Ltd | Manufacturing | 2025 |
| Parkers Plumbing Services Limited | Construction | 2017 |
| Parkers Recycling Limited | Water & waste | 2001 |
| Parklands 1963 Limited | Extraterritorial | 2014 |
| Parkside Community Enterprises Limited | Education | 2015 |
| Parkside Community Trust | Education | 2009 |
| Parkside Properties (Grays) Limited | Real estate | 2018 |
| Parkside Properties (Orsett) Limited | Real estate | 2013 |
| Parkso Ltd | Information & communication | 2024 |
| Parkstone Contracting Ltd | Professional & scientific | 2024 |
| Parkview Consulting Ltd | Professional & scientific | 2016 |
| Parlinus Developments Ltd | Real estate | 2020 |
| Parmar Aesthetics Limited | Health & social care | 2008 |
| Parnell Bros Demolition Limited | Construction | 2004 |
| Parodom Ventures Ltd | Information & communication | 2025 |
| Parr Consultancy Ltd | Professional & scientific | 2021 |
| Parr Property Solutions Ltd | Real estate | 2017 |
| Parravani's Ice Cream Ltd | Wholesale & retail | 2007 |
| Parrot and Friends Ltd | Other services | 2023 |
| Parrotts Plantation Shutters Ltd | Construction | 2018 |
| Parsana Ltd | Wholesale & retail | 2024 |
| Parsons Lodging Ltd | Real estate | 2018 |
| Participation Sport Ltd | Administrative & support | 2017 |
| Partnership Plus Limited | Professional & scientific | 1988 |
| Partridge Hill Solar Limited | Energy | 2020 |
| Parts PAK Ltd | Wholesale & retail | 2014 |
| Party and Prom Ltd | Administrative & support | 2023 |
| Party on the Park Ltd | Real estate | 2025 |
| Parus Consulting Services Ltd | Agriculture & fishing | 2026 |
| Parvenu Auto Limited | Administrative & support | 2022 |
| Parygold Properties Limited | Real estate | 1964 |
| PAS128 Surveys Ltd | Professional & scientific | 2024 |
| Pascale Design Limited | Hospitality | 2023 |
| Pascalestore Limited | Wholesale & retail | 2021 |
| PASE1 Limited | Financial services | 2022 |
| Pasha of Norwich Ltd | Wholesale & retail | 2025 |
| Pask Films Limited | Information & communication | 2025 |
| Passexpress Ltd | Education | 2012 |
| Passion 8 Caterers Limited | Hospitality | 2015 |
| Passion IT Solutions Ltd | Information & communication | 2018 |
| Passivefirecheck Ltd | Construction | 2025 |
| Past Productions Ltd | Information & communication | 2021 |
| Pasta Foods Limited | Manufacturing | 1956 |
| Pastbuild Construction & Management Ltd | Professional & scientific | 2021 |
| Pastimes Ltd | Manufacturing | 2016 |
| Paston Chase Limited | Information & communication | 1988 |
| Pastry Cutters Limited | Hospitality | 2011 |
| Pastures & Habitats Limited | Agriculture & fishing | 2008 |
| Pastures Green Residents Group Limited | Households | 2007 |
| Pastures Grove (Barford) Management Company Limited | Households | 2020 |
| Pastures Residents Limited | Real estate | 2019 |
| PAT 247 Ltd | Administrative & support | 2010 |
| PAT Source Ltd | Other services | 2026 |
| PAT Test Plus Limited | Manufacturing | 2011 |
| Pat-Testing E.H. Ltd | Professional & scientific | 2020 |
| Pata Holdings Ltd | Construction | 2025 |
| Patakuzue Ltd | Administrative & support | 2024 |
| Patara Properties Ltd | Real estate | 2026 |
| Patch Places Ltd | Other services | 2020 |
| Patchwork Ltd | Administrative & support | 2011 |
| Patenga Balti Ltd | Hospitality | 2021 |
| Patenga Ltd | Hospitality | 2020 |
| Paterson Construction Limited | Construction | 2025 |
| Pathcom Ltd | Information & communication | 2026 |
| Pathfinder Clean Energy (Pace) Catalyst Limited | Financial services | 2026 |
| Pathfinder Clean Energy (Pace) Construction Limited | Construction | 2024 |
| Pathfinder Clean Energy (Pace) Midco Limited | Financial services | 2025 |
| Pathfinder Clean Energy (Pace) Ukdev Ltd | Construction | 2018 |
| Patholink Limited | Health & social care | 2018 |
| Pathway Property (EA) Ltd | Construction | 2026 |
| Pathway Psychological Services Ltd | Health & social care | 2009 |
| Pathway Talent Hub UK Limited | Administrative & support | 2025 |
| Pathway to Independence Support Services Ltd | Health & social care | 2015 |
| Patient First Research Ltd | Professional & scientific | 2025 |
| Patishon Limited | Manufacturing | 2021 |
| Patnam Ltd | Health & social care | 2017 |
| Pato Accountants & Advisors Ltd | Professional & scientific | 2016 |
| Patricia Road RTM Company Limited | Households | 2021 |
| Patrick Bennett Ltd | Construction | 2016 |
| Patrick Consultancy Limited | Information & communication | 2019 |
| Patrick Trading Ltd | Wholesale & retail | 2018 |
| Patrick's Art Room Ltd | Wholesale & retail | 2022 |
| Patrick's Pizza Ltd | Hospitality | 2017 |
| Patronov Services Limited | Transport & logistics | 2026 |
| Patterns of Play Ltd | Wholesale & retail | 2021 |
| Pattie Tobin Photo Limited | Professional & scientific | 2023 |
| Paul & Marios (Midlands) Ltd | Hospitality | 2018 |
| Paul Andrew Curtis Roofing Limited | Construction | 2018 |
| Paul Baisley Limited | Health & social care | 2011 |
| Paul Baker Leadership Solutions Ltd | Professional & scientific | 2026 |
| Paul Chipperfield IT Consultancy Ltd | Information & communication | 2016 |