| Parsons Group (High Moor) Limited | Professional & scientific | 1958 |
| Parsons Singh Property Limited | Real estate | 2019 |
| Part Worn Tyres Direct Ltd | Wholesale & retail | 2013 |
| Partcloud Ltd | Professional & scientific | 2018 |
| Partner & Padel Ltd | Arts & recreation | 2025 |
| Partner Terms Limited | Wholesale & retail | 2026 |
| Partnering With Disability Health Initiative International Limited | Health & social care | 2013 |
| Partners for Reform Ltd | Professional & scientific | 2017 |
| Partners Menswear Limited | Wholesale & retail | 2022 |
| Partridge Capital Limited | Administrative & support | 2023 |
| PARTS4ENGINES Limited | Wholesale & retail | 2011 |
| Party on Retail Limited | Wholesale & retail | 2009 |
| Party Parlour Ltd | Wholesale & retail | 2023 |
| Party-Pod Photo Booths Limited | Arts & recreation | 2011 |
| Parvus Property Ltd | Households | 2021 |
| Pash Community CIC | Public administration | 2022 |
| Pasha Carpets Ltd | Wholesale & retail | 2026 |
| Pasha Fruit Port Limited | Wholesale & retail | 2024 |
| Pasha Premier Limited | Wholesale & retail | 2017 |
| Pass Commodities Limited | Water & waste | 2018 |
| Pass NOW Driving School Ltd | Education | 2026 |
| Pass Taxi Skills Ltd | Transport & logistics | 2015 |
| Pass-Time Driving Limited | Transport & logistics | 2018 |
| Passerelle Ltd | Financial services | 2023 |
| Passey Productions Ltd | Information & communication | 2012 |
| Passio Properties Limited | Real estate | 2022 |
| Passionate Support Ltd | Health & social care | 2023 |
| Passplane Limited | Information & communication | 2025 |
| Pastel Wellness Ltd | Education | 2024 |
| Pastmi Properties Limited | Real estate | 2005 |
| PAT Direct Limited | Construction | 2003 |
| Patagonia Landscaping Ltd | Administrative & support | 2025 |
| Patawawa Limited | Arts & recreation | 2018 |
| Patch Hopper Ltd | Administrative & support | 2012 |
| Patch My PC UK Limited | Information & communication | 2011 |
| Patcha Tech Limited | Information & communication | 2025 |
| Patella Investments Limited | Financial services | 2021 |
| Pateri Ltd | Real estate | 2021 |
| Path Away to Progress Limited | Professional & scientific | 2009 |
| Path Connect Ltd | Information & communication | 2018 |
| Path Found Ltd | Arts & recreation | 2026 |
| Pathan Transport Ltd | Transport & logistics | 2023 |
| Pathlyte Ltd | Professional & scientific | 2025 |
| Pathwayone Support Services CIC | Health & social care | 2025 |
| Pathways Health Care Limited | Health & social care | 2008 |
| Pathways to Progress Limited | Professional & scientific | 2009 |
| Patience Care Solutions Ltd | Health & social care | 2020 |
| Patient Plan Direct Limited | Financial services | 2009 |
| Patina Building Conservation Ltd | Professional & scientific | 2025 |
| Patman Company Ltd | Professional & scientific | 2020 |
| Patoma Associates Ltd | Financial services | 2009 |
| Patorious Properties Limited | Real estate | 2023 |
| Patri Bria &Dragos Limited | Transport & logistics | 2015 |
| Patrick Transp Ltd | Construction | 2019 |
| Patrick Transport Ltd | Transport & logistics | 2017 |
| Patrick's Logistics Ltd | Transport & logistics | 2024 |
| Patrick's PUB Limited | Hospitality | 2024 |
| Patriot Games Limited | Wholesale & retail | 2002 |
| Patronica Limited | Professional & scientific | 2026 |
| Pattern and Push Community Interest Company | Arts & recreation | 2021 |
| Patterson Gimlin Limited | Wholesale & retail | 2014 |
| Pattinson Brothers Limited | Administrative & support | 1998 |
| Patton Provision CIC | Education | 2025 |
| PAU Enterprises Limited | Wholesale & retail | 2014 |
| Paul Baines Marketing Limited | Administrative & support | 2021 |
| Paul Bedwell Town Planning Ltd | Professional & scientific | 2019 |
| Paul C Singleton Limited | Professional & scientific | 2010 |
| Paul Charlesworth Consulting Limited | Professional & scientific | 2018 |
| Paul Craig Interior Photography Ltd | Professional & scientific | 2017 |
| Paul Curson Pallets Limited | Other services | 2003 |
| Paul Day Countryside Services Ltd | Administrative & support | 2018 |
| Paul Gheorghe Limited | Transport & logistics | 2014 |
| Paul Hawkes Legal Limited | Professional & scientific | 2016 |
| Paul Horton and Associates Limited | Professional & scientific | 2009 |
| Paul Mackay Construction Services Limited | Professional & scientific | 2015 |
| Paul Mcclenaghan Ltd | Professional & scientific | 2014 |
| Paul Morris Driving Services Ltd | Transport & logistics | 2013 |
| Paul Morrison Studio Limited | Arts & recreation | 2015 |
| Paul Pashley Music Limited | Information & communication | 2014 |
| Paul Raybould Consulting Limited | Administrative & support | 2011 |
| Paul Reaney Design Engineering Limited | Manufacturing | 2014 |
| Paul Ridley the Floor Sanding Specialist Ltd | Construction | 2025 |
| Paul Rudram Construction Limited | Construction | 2013 |
| Paul Smith Comedy Ltd | Arts & recreation | 2018 |
| Paul Standell Education Ltd | Education | 2023 |
| Paul Standell Fitness Coaching Ltd | Education | 2022 |
| Paul Ward Design Limited | Professional & scientific | 2014 |
| Paulos' Limited | Hospitality | 2007 |
| Pauseflower Limited | Hospitality | 1986 |
| PAV Marketing Limited | Other services | 2021 |
| Pavement Creative Ltd | Professional & scientific | 2019 |
| Pavilion Mansions & Links Management Limited | Real estate | 1994 |
| Pavilion ROW Limited | Professional & scientific | 2010 |
| Pavillion Rose Limited | Manufacturing | 2022 |
| Pavleen's Boutique Ltd | Wholesale & retail | 2026 |
| PAW Electrical Solutions Limited | Construction | 2023 |
| PAW Print Pet Services Ltd | Other services | 2025 |
| Paw-Site Vibe Ltd | Transport & logistics | 2025 |
| Paws & Claws Pet Supplies S21 Ltd | Wholesale & retail | 2022 |
| Paws and Puff Ltd | Other services | 2025 |