| Plaza Inn Ltd | Hospitality | 2019 |
| Plesanutrans Ltd | Transport & logistics | 2026 |
| Plixo Labs Ltd | Information & communication | 2025 |
| PLJ Materials Ltd | Manufacturing | 2018 |
| PLM Fire & Security Ltd | Administrative & support | 2018 |
| Plot 2100 Management Limited | Real estate | 2012 |
| Plug the GAP Limited | Administrative & support | 2010 |
| Plumbing GAS and Heating Limited | Construction | 2013 |
| Plumbtek Plumbing & Heating Limited | Construction | 2023 |
| Plus Insurance Partners Limited | Financial services | 2009 |
| Plushpaws Limited | Wholesale & retail | 2004 |
| Plutus International Investments Limited | Real estate | 2024 |
| PM James Ltd | Professional & scientific | 2017 |
| PM Medcare Ltd | Health & social care | 2010 |
| Pm-D Consultancy Services Ltd | Administrative & support | 2019 |
| PMG Health & Fitness Ltd | Arts & recreation | 2025 |
| PML Financial Services Limited | Financial services | 2005 |
| Pmobyso'C Ltd | Professional & scientific | 2015 |
| PN Services Ltd | Administrative & support | 2022 |
| PN Tech Limited | Information & communication | 2019 |
| Pn&Apv Construction Ltd | Construction | 2024 |
| Pnni Construction Limited | Manufacturing | 2022 |
| Pockets Full of Love Ltd | Manufacturing | 2014 |
| Poke the Cloud Limited | Wholesale & retail | 2019 |
| Pokemart Ltd | Wholesale & retail | 2025 |
| Poképrotection Ltd | Wholesale & retail | 2025 |
| Pol-Service Bedford Ltd | Wholesale & retail | 2018 |
| Pola Logistics Ltd | Transport & logistics | 2019 |
| Pola Property Ltd | Real estate | 2026 |
| Polaria Ltd | Information & communication | 2023 |
| Poletech Scaffolding Ltd | Construction | 2003 |
| Policyandplay Ltd | Information & communication | 2026 |
| Polish Delicatessen Limited | Wholesale & retail | 2012 |
| Polish House (Bedford) Limited | Extraterritorial | 1960 |
| Polka Market Ltd | Wholesale & retail | 2026 |
| Polly Sewell Limited | Financial services | 2020 |
| Polo Group Ltd | Real estate | 2024 |
| Polycote UK LLP | | 2022 |
| Polymath Insight Limited | Information & communication | 2009 |
| Polymec Rollers Limited | Professional & scientific | 1993 |
| Polymetis Professional Solutions Ltd | Professional & scientific | 2022 |
| Pongai Ltd | Real estate | 2020 |
| Poothru Care Limited | Health & social care | 2014 |
| POP N Spark Ltd | Wholesale & retail | 2026 |
| Pop-In Cafe Bedford Limited | Hospitality | 2015 |
| Popert Diagnostic Ltd | Professional & scientific | 2025 |
| Popobe Limited | Wholesale & retail | 2018 |
| POPOVA88 Limited | Health & social care | 2012 |
| Poppets Interiors Ltd | Wholesale & retail | 2026 |
| Poppin's Day Service Limited | Health & social care | 2020 |
| Popv Limited | Information & communication | 2013 |
| PORTERFIELD73 Ltd | Professional & scientific | 2020 |
| Portes Electrical Ltd | Construction | 2020 |
| Portfolio GEM Ltd | Households | 2026 |
| Portfolio Marketing Limited | Professional & scientific | 2001 |
| Portley Power Ltd | Construction | 2021 |
| Portmap Ltd | Real estate | 2016 |
| Portocall Ltd | Information & communication | 2006 |
| Portunus Properties Limited | Real estate | 2017 |
| Portway Property Services Ltd | Real estate | 2024 |
| Positive 3SMILES Limited | Health & social care | 2023 |
| Positive Dynamics Limited | Professional & scientific | 2015 |
| Positive Impact Tutors (PIT) Ltd | Education | 2018 |
| Positive Security Ltd | Administrative & support | 2008 |
| Positive Therapy Ltd | Health & social care | 2023 |
| Positive Young Minds Limited | Health & social care | 2015 |
| Positron Electrical Services Ltd | Construction | 2026 |
| Post Mate Pro Ltd | Manufacturing | 2026 |
| Post Union Ltd | Information & communication | 2012 |
| Posturefit Ltd | Other services | 2017 |
| Potestas Power Limited | Energy | 2013 |
| POW Properties Limited | Real estate | 2017 |
| Powartech Ltd | Information & communication | 2019 |
| Powder and Material Handling Services Holdings Limited | Professional & scientific | 2024 |
| Powder and Material Handling Services Limited | Manufacturing | 2020 |
| Powder Coatings MK Limited | Manufacturing | 2020 |
| Powell Advisory Group Ltd | Health & social care | 2025 |
| Power Computing Limited | Information & communication | 1987 |
| Power in Discussion CIC | Administrative & support | 2022 |
| Power Innovations Limited | Extraterritorial | 2002 |
| Power Saunders Limited | Real estate | 2018 |
| Power UP Coaching Academy Ltd | Education | 2022 |
| Powering Independent Artists Limited | Arts & recreation | 2024 |
| Powerlease Ltd | Wholesale & retail | 2000 |
| Powerscourt Developments Limited | Construction | 2010 |
| Powersure Engineering Ltd | Wholesale & retail | 2023 |
| Powervamp Limited | Manufacturing | 1994 |
| Powerworks Wholesale Limited | Wholesale & retail | 2005 |
| Powrot DO Siebie CIC | Health & social care | 2026 |
| PP FIT2TRAIN Limited | Education | 2019 |
| PP Groundcare Limited | Agriculture & fishing | 2011 |
| PP Prime Plastering Ltd | Construction | 2026 |
| Ppbkh Properties Ltd | Real estate | 2014 |
| PPC Property Management Limited | Real estate | 2009 |
| Ppcz (Holdings) Limited | Administrative & support | 2022 |
| Ppdt Limited | Health & social care | 2019 |
| Ppsp Limited | Construction | 2018 |
| Practical Innovation Limited | Health & social care | 2025 |
| Pranjal Financial Services Limited | Professional & scientific | 2024 |
| Prap Autos Ltd | Wholesale & retail | 2021 |