| PEB 44 Holding Group Limited | Financial services | 2024 |
| Pebrina Consultancy Ltd | Administrative & support | 2014 |
| Peckham PIE and Mash Ltd | Hospitality | 2026 |
| Pedi Bred Media Limited | Agriculture & fishing | 2021 |
| Peerless Advisory Limited | Real estate | 2025 |
| Peerless Builders Limited | Construction | 2023 |
| Pegasus IT Limited | Information & communication | 2009 |
| Pegasus Lettings Ltd | Real estate | 2025 |
| Pegasus Project Planning Ltd | Construction | 2020 |
| Pegasus Scaffolding (Essex) Ltd | Construction | 2024 |
| Pegasus Securities & Investments Ltd | Financial services | 2010 |
| Pegasus Telecom Limited | Information & communication | 2012 |
| Pegcourt Limited | Real estate | 1996 |
| Peggy’S Cottage Limited | Real estate | 2025 |
| Pegladon Property Ltd | Real estate | 2023 |
| Pegrams Court Management Limited | Households | 1995 |
| Pegseo Stone Ltd | Mining & quarrying | 2020 |
| Pejomic Investments Limited | Real estate | 1963 |
| Pelagius Consulting Limited | Financial services | 2018 |
| Peldon Cafe & Flower Studio Limited | Hospitality | 2019 |
| Peldon Hall Farms Limited | Agriculture & fishing | 2012 |
| Pelican Media Limited | Information & communication | 2003 |
| Pelter Street Associates Ltd | Professional & scientific | 2019 |
| Peluca Studio Limited | Other services | 2020 |
| PEN Academy Limited | Education | 2016 |
| Pencroft Ventures (MED) Limited | Wholesale & retail | 2020 |
| Pendulum Financial Services Ltd | Professional & scientific | 2019 |
| Penguin Tutoring Limited | Education | 2025 |
| Penhaligon Court (Witham) Management Company Limited | Households | 1989 |
| Peninsula Trading Ltd | Wholesale & retail | 2025 |
| Penn Barr Developments Limited | Construction | 2014 |
| Penn Barr Investments Ltd | Real estate | 2017 |
| Penny Black Investments Ltd. | Real estate | 2020 |
| Penny Black Pathology Ltd | Health & social care | 2022 |
| Penrice Court Limited | Real estate | 2004 |
| Penros Limited | Professional & scientific | 2024 |
| Penrose Learning Trust | Education | 2011 |
| Pens and Dragons CIC | Wholesale & retail | 2025 |
| Pension Advantage Limited | Professional & scientific | 2022 |
| Pensione Ltd | Financial services | 1996 |
| Pensions Explained Limited | Financial services | 1998 |
| Pentagon Medical Staffing Ltd | Administrative & support | 2018 |
| People and Process Improvement Limited | Professional & scientific | 2006 |
| People Planet Product Ltd | Professional & scientific | 2024 |
| People Progress Ltd | Professional & scientific | 2023 |
| Peoples Education Online Sales Limited | Wholesale & retail | 2022 |
| PEP Publishing Limited | Information & communication | 2012 |
| Peparithos Ltd | Hospitality | 2022 |
| Pepper Staffing Ltd | Administrative & support | 2023 |
| Peppercorn Hill Limited | Professional & scientific | 2014 |
| Peptalk Communications Limited | Professional & scientific | 2005 |
| Perceptive Condor Limited | Professional & scientific | 2002 |
| Percival & Company (Earls Colne) Limited | Real estate | 2024 |
| Percival Bros Limited | Real estate | 2024 |
| Percival Coachworks Limited | Manufacturing | 2006 |
| Percival Engineering Limited | Manufacturing | 2001 |
| Perebel Property Limited | Real estate | 2019 |
| Perfect Citrine Limited | Wholesale & retail | 2019 |
| Perfect Pixel Solutions Ltd | Administrative & support | 2024 |
| Perfect Ride Ltd | Information & communication | 2025 |
| Perfect Rooms Limited | Construction | 2002 |
| Perform Online Limited | Professional & scientific | 2018 |
| Performers Gymnastics Academy Ltd | Arts & recreation | 2018 |
| Periclase Ltd | Hospitality | 2007 |
| Peril Solutions Limited | Administrative & support | 2011 |
| Perla Nova Ltd | Wholesale & retail | 2022 |
| Perrin Butchers Ltd | Wholesale & retail | 2026 |
| Perry & Side Property Limited | Households | 2018 |
| Perry Build Ltd | Construction | 2026 |
| Perrymans Estates Limited | Professional & scientific | 2015 |
| Perrywood Buckhatch Limited | Wholesale & retail | 2024 |
| Perrywood Garden Centre & Nurseries Limited | Wholesale & retail | 1999 |
| Perrywood Limited | Financial services | 2020 |
| Perrywood Sudbury Limited | Wholesale & retail | 2018 |
| Persha Carpets & Flooring Limited | Construction | 2001 |
| Pest Predators Ltd | Administrative & support | 2024 |
| Pestle & Mortar Designs Limited | Manufacturing | 2018 |
| Pestpulsar Technologies Ltd | Wholesale & retail | 2025 |
| Pet Accessories Ltd | Agriculture & fishing | 2014 |
| Pet City Colchester Limited | Wholesale & retail | 2026 |
| Peter Clarke's Boatyard Limited | Wholesale & retail | 1999 |
| Peter Fairfax Limited | Extraterritorial | 2000 |
| Peter Frizzell Ltd | Agriculture & fishing | 2012 |
| Peter Hesler Limited | Construction | 2015 |
| Peter Knight Limited | Professional & scientific | 2004 |
| Peter Shore Court Limited | Extraterritorial | 2017 |
| Peter Watts Cars Limited | Other services | 2008 |
| Petersfield Screening Ltd | Health & social care | 1992 |
| Peterson Contracts Ltd | Professional & scientific | 2025 |
| Petrunko Construction Ltd | Construction | 2022 |
| Petrus Property Ltd | Real estate | 2016 |
| Petticrow Quays Freehold Limited | Real estate | 2010 |
| Petticrow Quays Management RTM Company Limited | Households | 2016 |
| Petts Property Development Ltd | Construction | 2023 |
| Peveril Hotel Ltd | Real estate | 1999 |
| PFC (EN) Ltd | Hospitality | 2022 |
| PFS Fueltec Limited | Wholesale & retail | 1996 |
| PGO Realisations Limited | Construction | 1957 |
| PGS Investments Limited | Real estate | 2026 |
| PH & Q Services Limited | Construction | 2020 |