| PKP Tech Ltd | Information & communication | 2017 |
| PKR Group UK Limited | Wholesale & retail | 2025 |
| PKT Property Investments Limited | Real estate | 2016 |
| PKV Management Services Limited | Real estate | 2023 |
| PL & NL Properties Limited | Financial services | 2023 |
| PL (Professional Long-Term) Fundraising Limited | Other services | 2020 |
| Place Crest Limited | Information & communication | 2025 |
| Place Layer Limited | Information & communication | 2025 |
| Place Morph Limited | Information & communication | 2025 |
| Place Recruitment Ltd | Administrative & support | 2016 |
| PLACES2NEST Ltd | Real estate | 2020 |
| Plain Speaking Tech Advisory Ltd | Professional & scientific | 2026 |
| Plains Physiotherapy Limited | Health & social care | 2024 |
| Plainsound Limited | Professional & scientific | 1988 |
| Plam Couriers Ltd | Transport & logistics | 2019 |
| Plam Heat Ltd | Construction | 2025 |
| Plamira Ltd | Wholesale & retail | 2026 |
| Plan a Cafe Limited | Hospitality | 2024 |
| Plan and Deliver Ltd | Wholesale & retail | 2021 |
| Plan Fathom Limited | Information & communication | 2025 |
| Plan Tangle Limited | Information & communication | 2025 |
| Plan-It (GB) Ltd | Information & communication | 2012 |
| Plan-It Green Construction Ltd | Construction | 2011 |
| PLAN2HOMES Ltd | Real estate | 2022 |
| Planecatchers Limited | Transport & logistics | 2023 |
| Planet Brazaar Limited | Wholesale & retail | 2009 |
| Planet Patrol CIC | Professional & scientific | 2018 |
| Planet Pizza 3 Limited | Hospitality | 2023 |
| Planet Pizza House Limited | Hospitality | 2019 |
| Planet Trim Company Limited | Wholesale & retail | 2000 |
| Planet Value Ltd | Wholesale & retail | 2022 |
| Planetree Property Ltd | Real estate | 2023 |
| Planetstorm Limited | Real estate | 2015 |
| Planfully Limited | Information & communication | 2025 |
| Plansight Limited | Professional & scientific | 2013 |
| Plant & Access Repairs Ltd | Manufacturing | 2016 |
| Plant Transport Management Limited | Transport & logistics | 2020 |
| Plant Welding and Engineering Limited | Manufacturing | 1998 |
| Plant Welding Holdings Limited | Manufacturing | 1963 |
| Plant.Ng Wild Community Tree Nursery C.I.C. | Agriculture & fishing | 2023 |
| Plantlicious Ltd | Manufacturing | 2019 |
| Plantsletsgrow Ltd | Wholesale & retail | 2023 |
| Plaster by Design Limited | Construction | 2013 |
| Plaster Vision Limited | Construction | 2025 |
| Plastic Aftertaste Limited | Information & communication | 2023 |
| Plastic Strapping Co. Limited(The) | Manufacturing | 1979 |
| Plastimet Limited | Manufacturing | 2000 |
| PLAT360FORM Ltd | Wholesale & retail | 2025 |
| Plate Test UK Ltd | Construction | 2025 |
| Platelet Services Ltd | Professional & scientific | 2018 |
| Plates&Co Ltd | Wholesale & retail | 2025 |
| Platform 4 Consulting Ltd | Professional & scientific | 2014 |
| Platform One (Nottingham) Limited | Professional & scientific | 2019 |
| Platform Teams Limited | Real estate | 2026 |
| PLATFORM28 Ltd | Professional & scientific | 2026 |
| Platinium 2000 Ltd | Other services | 2012 |
| Platinum Cleanss Ltd | Administrative & support | 2025 |
| Platinum Close Protection Ltd | Administrative & support | 2020 |
| Platinum Deals Ltd | Real estate | 2025 |
| Platinum Elite Clean Limited | Administrative & support | 2024 |
| Platinum Equestrian Ltd | Wholesale & retail | 2022 |
| Platinum Estates and Investments Ltd | Real estate | 2026 |
| Platinum Financial Media Group Limited | Wholesale & retail | 2019 |
| Platinum Graphix Imaging Limited | Professional & scientific | 2013 |
| Platinum Guest Homes Ltd | Hospitality | 2026 |
| Platinum Heating & Electric Services Ltd | Construction | 2024 |
| Platinum Home Care Limited | Health & social care | 2022 |
| Platinum Investments Associates Limited | Information & communication | 2011 |
| Platinum K9 Holdings Limited | Financial services | 2022 |
| Platinum PPM Ltd | Information & communication | 2015 |
| Platinum Property Management Ltd | Financial services | 2022 |
| Platinum Site Management Limited | Construction | 2019 |
| Platinum Skin Care Centre Limited | Other services | 2010 |
| Platinum Synergy Limited | Real estate | 2022 |
| Platinum UK Roofing Ltd | Construction | 2020 |
| Platinum Vault Limited | Wholesale & retail | 2026 |
| Playfor Medical Ltd | Health & social care | 2017 |
| Playhooray! Limited | Administrative & support | 2020 |
| Playhouse Square Management Ltd | Households | 2020 |
| Playstyle Games Ltd | Information & communication | 2012 |
| Playtime Paradise Ltd | Hospitality | 2025 |
| Plaza Builders Limited | Construction | 2009 |
| Plaza Civils Limited | Construction | 2012 |
| Plaza Group Limited | Financial services | 2016 |
| Plaza Homes Limited | Construction | 2016 |
| PLB Trading Ltd | Wholesale & retail | 2025 |
| Plbg Limited | Wholesale & retail | 2017 |
| Pldhealthspan Limited | Other services | 2024 |
| Pleasley Surgery Limited | Health & social care | 2010 |
| Pleasurables Ltd | Wholesale & retail | 2022 |
| Pleasurenory Limited | Wholesale & retail | 2007 |
| Plenty Digital Ltd | Professional & scientific | 2021 |
| Plenty O Tack Ltd | Wholesale & retail | 2020 |
| Plenum Management Consultants Limited | Professional & scientific | 1997 |
| Plexus Support Services Limited | Professional & scientific | 2007 |
| PLG Global Limited | Wholesale & retail | 2019 |
| PLI Nottingham Ltd | Real estate | 2017 |
| PLM Roofing&Building Ltd | Construction | 2025 |
| PLO Plumbing & Heating Limited | Construction | 2006 |
| Plot & Place Ltd | Real estate | 2025 |