| Public Safe Ltd | Construction | 2021 |
| Public Services Digital Limited | Information & communication | 2009 |
| Publicservicematters Limited | Health & social care | 2022 |
| Publishers Wales Limited | Information & communication | 2021 |
| Publius Cornelius Strategic Advisory Ltd | Other services | 2024 |
| Pubs Somerset Ltd | Hospitality | 2024 |
| Pubsports Limited | Real estate | 1971 |
| Puckerin Software Limited | Information & communication | 2019 |
| Puddlemud Soapery Ltd | Administrative & support | 2017 |
| Puddles Sensory Play Limited | Other services | 2023 |
| Pudology Ltd | Manufacturing | 2012 |
| Pudstone Ltd | Information & communication | 2019 |
| Puffiez Limited | Wholesale & retail | 2024 |
| Pugailis Ltd | Wholesale & retail | 2025 |
| Pugh Property Investments Ltd | Real estate | 2024 |
| Pugh's Garden Kitchen Ltd | Hospitality | 2025 |
| Pughs Construction Limited | Construction | 2013 |
| Pugov & Babun Ltd | Wholesale & retail | 2024 |
| PUI Filip Ltd | Transport & logistics | 2019 |
| Puissant Care Ltd | Administrative & support | 2022 |
| PUL2D Ltd | Other services | 2020 |
| Pulotexra Ltd | Wholesale & retail | 2025 |
| Pulpo Clean Ltd | Wholesale & retail | 2025 |
| Pulpower Ltd | Information & communication | 2011 |
| Puls One E-Commerce Limited | Wholesale & retail | 2025 |
| Pulse LH Ltd | Administrative & support | 2018 |
| Pulse Summit Capital Ltd | Financial services | 2025 |
| Pulseglobe Trade Ltd | Wholesale & retail | 2025 |
| Pulsesoft Ltd | Wholesale & retail | 2025 |
| Pulsetrack Ltd | Information & communication | 2025 |
| Puma Floors Limited | Construction | 2001 |
| Puma Holdings Ltd | Wholesale & retail | 2007 |
| Puma Logistics Ltd | Transport & logistics | 2019 |
| Pumed Gainc Cyfyngedig | Information & communication | 2016 |
| Pump Nation Ltd | Professional & scientific | 2025 |
| Pump Perfusion Services Ltd | Administrative & support | 2019 |
| Pumpcrete (Southern) Ltd | Construction | 2022 |
| Punchard Group Ltd | Construction | 2019 |
| Punitha's (Cardiff) Limited | | 2012 |
| Punk Bikes Ltd | Wholesale & retail | 2018 |
| Puntresin Ltd | Agriculture & fishing | 2019 |
| PUR Music Events Ltd | Information & communication | 2024 |
| Pura Velo Limited | Wholesale & retail | 2015 |
| Puravom Ltd | Wholesale & retail | 2026 |
| Purdie,Lumsden and Company Limited | Wholesale & retail | 1919 |
| Pure Advisory Group Ltd | Financial services | 2019 |
| Pure Buy to LET Limited | Professional & scientific | 2016 |
| Pure Commercial Finance Ltd | Professional & scientific | 2013 |
| Pure Construction Group Limited | Construction | 2021 |
| Pure Crystal Ltd | Wholesale & retail | 2020 |
| Pure FM Ltd | Administrative & support | 2018 |
| Pure Global Trade Limited | Wholesale & retail | 2020 |
| Pure Leaf Software Ltd | Information & communication | 2025 |
| Pure Luxs Distribution Ltd | Wholesale & retail | 2025 |
| Pure Management Property Ltd | Real estate | 2026 |
| Pure Marketing Results Limited | Other services | 2018 |
| Pure Mental Health Ltd | Health & social care | 2025 |
| Pure Moss Saas Ltd | Information & communication | 2025 |
| Pure Nails Bedford Ltd | Other services | 2017 |
| Pure Pods UK Limited | Manufacturing | 2021 |
| Pure Properties Cardiff Ltd | Real estate | 2022 |
| Pure Property Finance Limited | Financial services | 2019 |
| Pure Property Management SW Limited | Real estate | 2025 |
| Pure Restoration Ltd | Other services | 2020 |
| Pure Safety Group Holdings Limited | Financial services | 2017 |
| Pure Shores Property Investments Ltd | Extraterritorial | 2019 |
| Pure Simple Ltd | Wholesale & retail | 2022 |
| Pure Structured Finance Ltd | Financial services | 2019 |
| Pure Translations Ltd | Information & communication | 2018 |
| Pure V2 Limited | Financial services | 2019 |
| Pure Wealth Management Limited | Financial services | 2018 |
| Pure-Sy Ltd | Construction | 2025 |
| Pureblue Global Networks Ltd | Information & communication | 2012 |
| Purecartz Ltd | Wholesale & retail | 2025 |
| Purecell Limited | Professional & scientific | 2025 |
| Purecyber Limited | Information & communication | 2016 |
| Purefm Developments Limited | Real estate | 2025 |
| Pureharmony Limited | Information & communication | 1987 |
| Purekind Skincare Co Ltd | Manufacturing | 2026 |
| Pureleaf International Ltd | Wholesale & retail | 2025 |
| Purely Fresh Limited | Hospitality | 2025 |
| Purelygoods Limited | Wholesale & retail | 2024 |
| Puremaplers Ltd | Wholesale & retail | 2017 |
| Pureone Technology Co., Ltd | Professional & scientific | 2008 |
| Pureresinwood Ltd | Wholesale & retail | 2025 |
| Purescience Solutions Ltd | Professional & scientific | 2025 |
| Purestarmedia Limited | Information & communication | 2015 |
| Purevelle Ltd | Wholesale & retail | 2026 |
| Purevia Limited | Manufacturing | 2025 |
| Purevora Limited | Wholesale & retail | 2024 |
| Purfect Gifts Limited | Wholesale & retail | 2019 |
| Puri-Evans Productions Limited | Information & communication | 2003 |
| Puriago Ltd | Wholesale & retail | 2025 |
| Purifio Ltd | Manufacturing | 2025 |
| Purity Britannia Ltd | Wholesale & retail | 2019 |
| Purive Health Ltd | Health & social care | 2019 |
| Purple Blossom Healthcare Ltd | Health & social care | 2018 |
| Purple Box Properties Limited | Real estate | 2022 |
| Purple Car Sales Ltd | Wholesale & retail | 2025 |
| Purple Crystal Limited | Hospitality | 2011 |