| Primary Healthcare Development Ltd | Health & social care | 2018 |
| Prime Creative Holdings Limited | Financial services | 2020 |
| Prime Creative Limited | Professional & scientific | 1992 |
| Prime Distribution 2000 Limited | Wholesale & retail | 2026 |
| Prime Electro Limited | Wholesale & retail | 2020 |
| Prime Extensions Ltd | Construction | 2026 |
| Prime Innovators Ltd | Wholesale & retail | 2025 |
| Prime Living Home and Outdoor Ltd | Construction | 2026 |
| Prime Tech General Contracting Ltd | Construction | 2023 |
| Primeroute Transport Ltd | Transport & logistics | 2024 |
| Primetime Consulting Ltd | Information & communication | 2017 |
| Primo Parts Ltd | Extraterritorial | 1993 |
| Print Bureau Holdings Limited | Financial services | 2023 |
| Print Bureau Ltd | Wholesale & retail | 2008 |
| Printmage Ltd | Manufacturing | 2024 |
| Printout Colour Printers Limited | Manufacturing | 2011 |
| Priory Hardwoods Limited | Construction | 2002 |
| Priory Woodfloor Restoration Limited | Construction | 2018 |
| Prism Pilates Ltd | Arts & recreation | 2026 |
| Prismvibe Ltd | Wholesale & retail | 2025 |
| Prison Health Focus Limited | Health & social care | 2021 |
| Pristine Motorcare Ltd | Wholesale & retail | 2024 |
| Private Group Limited | Wholesale & retail | 2023 |
| Prize Buffalo Limited | Wholesale & retail | 2025 |
| Pro Cleanse Solutions Ltd | Administrative & support | 2024 |
| Pro Deen Builders Ltd | Construction | 2015 |
| Pro Grade Gear Ltd | Wholesale & retail | 2021 |
| Pro Installs Ltd | Construction | 2020 |
| Pro Vehicle Hire Ltd | Administrative & support | 2022 |
| PROAERO2022 Ltd | Professional & scientific | 2022 |
| Problem Solver Limited | Professional & scientific | 2013 |
| Process Complete Ltd | Wholesale & retail | 2025 |
| Production JMS Limited | Manufacturing | 2021 |
| Professional & Executive Financial Services Limited | Administrative & support | 1974 |
| Profile Wrapping Solutions Ltd | Professional & scientific | 2006 |
| Proform Racing Limited | Information & communication | 2000 |
| Project Challenge | Education | 1996 |
| Project Ff&E Limited | Construction | 2010 |
| Project FM Limited | Extraterritorial | 2024 |
| Project Furniture Limited | Wholesale & retail | 2016 |
| Project Furniture Residential Limited | Wholesale & retail | 2020 |
| Project Group Investments Limited | Real estate | 2024 |
| Project Group UK Holdings Limited | Financial services | 2024 |
| Project Group UK Limited | Financial services | 2016 |
| Project Interiors Limited | Construction | 2016 |
| Project Metal Ltd | Wholesale & retail | 2020 |
| Project Safe Construction Ltd | Construction | 2013 |
| Project Solutions-Uk Limited | Manufacturing | 2018 |
| Project Studio Limited | Professional & scientific | 2021 |
| Projectit Consulting Limited | Information & communication | 2025 |
| Proline Logistics Ltd | Administrative & support | 2015 |
| Promax IT Consultancy Ltd | Information & communication | 2013 |
| Prompt Digital Limited | Professional & scientific | 2025 |
| Properties for Better Living Ltd | Real estate | 2023 |
| Property @ Kemp & Co Ltd | Real estate | 2009 |
| Property DNA Investments Ltd | Real estate | 2025 |
| Property DNA Ltd | Real estate | 2024 |
| Property Doctor Xpress Ltd | Real estate | 2020 |
| Property Family Lettings Limited | Real estate | 2025 |
| Property Investment Plus Ltd | Real estate | 2025 |
| Property Pixies Limited | Real estate | 2022 |
| Property VB Ltd | Real estate | 2020 |
| Propertylink Technology Services Limited | Real estate | 2023 |
| Propmint Ltd | Real estate | 2025 |
| Proppashoppauk Ltd | Wholesale & retail | 2026 |
| Prosell Holdings Ltd | Financial services | 2015 |
| Proskill Consultancy Limited | Professional & scientific | 2008 |
| Prospect Place Harrogate Ltd | Real estate | 2023 |
| Protaxi Hire Ltd | Administrative & support | 2025 |
| Protheroe Developments (UK) Limited | Real estate | 2007 |
| Protheroe Property Ltd | Real estate | 2016 |
| Protreat Preservation Limited | Construction | 2009 |
| Proud Talent Management Ltd | Administrative & support | 2025 |
| Proxivend Ltd | Wholesale & retail | 2026 |
| PRS (Halifax) Ltd | Hospitality | 2026 |
| PS BFD Ltd | Hospitality | 2025 |
| PS Movement Limited | Wholesale & retail | 2026 |
| Psb-Uk Limited | Construction | 2000 |
| PSG Bars Limited | Hospitality | 2017 |
| PT Decorating Contractors Ltd | Construction | 2021 |
| PT Decorating Services Ltd | Construction | 2021 |
| PTL3 Limited | Hospitality | 2024 |
| Ptsm Limited | Professional & scientific | 2016 |
| PUB and Taverns Ltd | Hospitality | 2024 |
| Pulsar Sales UK Limited | Wholesale & retail | 2023 |
| Pulse International Consulting Ltd | Professional & scientific | 2026 |
| Pupil Pathways Limited | Information & communication | 2025 |
| Pups and Mutts OFF Lead Play Area Limited | Other services | 2021 |
| Pure Clean (UK) Ltd | Administrative & support | 2012 |
| Pure Creative Marketing Limited | Professional & scientific | 2003 |
| Pure Heart and Soul Ltd | Wholesale & retail | 2021 |
| Pure Travel UK Limited | Administrative & support | 2008 |
| Purest Health Ltd | Wholesale & retail | 2025 |
| Purpleline Couriers Ltd | Transport & logistics | 2024 |
| Purplemoon Supervision and Coaching Ltd | Professional & scientific | 2020 |
| Pushing the Creative Ltd | Professional & scientific | 2025 |
| PWR Fitness Limited | Arts & recreation | 2019 |
| PWS (Leeds) Limited | Manufacturing | 2004 |
| Pyro Flux Energy Ltd | Water & waste | 2025 |
| Pyxis Joinery Limited | Construction | 2012 |