| Parth Food & Wine Ltd | Wholesale & retail | 2021 |
| Parth Retail Group Ltd | Real estate | 2025 |
| Partial Overload Ltd | Information & communication | 2015 |
| Participa Ltd | Financial services | 2014 |
| Participatr Limited | Information & communication | 2019 |
| Partime Systems Limited | Information & communication | 1998 |
| Partners at Domus Limited | Real estate | 2023 |
| Partners Inc Ltd | Wholesale & retail | 2024 |
| Partnership in Innovation Ltd | Real estate | 1997 |
| Partridge Business Services Ltd | Administrative & support | 2000 |
| Partridge Lifts Ltd | Manufacturing | 2024 |
| Parts and Profiles Ltd | Administrative & support | 2024 |
| Party BUS Service Ltd | Administrative & support | 2021 |
| Party Horses Limited | Agriculture & fishing | 2026 |
| Party in My Pans Limited | Hospitality | 2014 |
| Party in the Ponds C.I.C. | Arts & recreation | 2020 |
| Party Wigs Limited | Wholesale & retail | 2001 |
| Partymedic Ltd | Wholesale & retail | 2016 |
| Partysharty TA Fairprice Ltd | Wholesale & retail | 2022 |
| PAS Lighting Limited | Information & communication | 2014 |
| Pasa Controls Limited | Manufacturing | 2025 |
| Pasce Ltd | Manufacturing | 2010 |
| Pasco Group Commercial Limited | Real estate | 2022 |
| Pasco Group Franchising Limited | Administrative & support | 2010 |
| Pasco Group Holdings Limited | Financial services | 2016 |
| Pasco Group Limited | Financial services | 2008 |
| Pasco Group Residential Limited | Real estate | 2026 |
| Pasco Group Retail 3 Limited | Hospitality | 2024 |
| Pasco Group Retail Limited | Hospitality | 2016 |
| Pasco Ventures Limited | Professional & scientific | 2023 |
| Pascoe Plumbing & Heating Limited | Construction | 2023 |
| Pasha Wealth Ltd | Real estate | 2020 |
| Pasha World Ltd | Financial services | 2025 |
| Pashen 4 Performance Ltd | Arts & recreation | 2025 |
| Pasion Motors Ltd | Wholesale & retail | 2022 |
| Pass Group Limited | Professional & scientific | 1988 |
| Pass Holdings Limited | Professional & scientific | 1996 |
| Pass With Paul Limited | Education | 2025 |
| Passage Road Freehold Limited | Real estate | 2023 |
| Passco Plumbing & Heating Limited | Construction | 2022 |
| Passco Properties Limited | Real estate | 2023 |
| Passenger Limited | Manufacturing | 1996 |
| Passion for Excellence Ltd | Extraterritorial | 2023 |
| Passion in Care Limited | Health & social care | 2018 |
| Passion Playhouse XXX Ltd | Wholesale & retail | 2025 |
| Passion WOK Limited | Hospitality | 2019 |
| Passitons Productions Ltd | Information & communication | 2018 |
| Passivesafe Ltd | Construction | 2025 |
| Past Curfew Ltd | Information & communication | 2020 |
| Pasta Ripiena Limited | Hospitality | 2017 |
| Pastalucia Holdings Limited | Extraterritorial | 2006 |
| Pastaria Bianchi Limited | Wholesale & retail | 2019 |
| Pastel Drinks Ltd | Hospitality | 2023 |
| Pastries by Delice Limited | Manufacturing | 2026 |
| Pasture Restaurant (Cardiff) Limited | Hospitality | 2019 |
| Pasture Restaurant Group Limited | Financial services | 2024 |
| Pasture Restaurant Limited | Hospitality | 2017 |
| Pasture Spirit Co Limited | Wholesale & retail | 2026 |
| Patagonia Gold Limited | Mining & quarrying | 2000 |
| Patagonia Ltd | Real estate | 2022 |
| Patanz Ltd | Households | 2021 |
| Patati Patata Ltd | Arts & recreation | 2024 |
| Patch Law Limited | Professional & scientific | 2023 |
| Patchcott Holdings Ltd | Other services | 2023 |
| Patchup Productions Ltd | Information & communication | 2019 |
| Patchway Dental Services Limited | Health & social care | 2020 |
| Patchwork Communion Ltd | Professional & scientific | 2026 |
| Patco Newsagents (Bristol) Limited | Wholesale & retail | 1984 |
| Patex Properties Ltd | Real estate | 2023 |
| PATH2PROD Limited | Information & communication | 2026 |
| Pathel UK Limited | Wholesale & retail | 2019 |
| Pathfinder Build Ltd | Construction | 2025 |
| Pathfinder Holdings Limited | Professional & scientific | 2025 |
| Pathfinder Recruitment Limited | Administrative & support | 2007 |
| Pathlink CIC | Health & social care | 2025 |
| Pathologica Ltd | Information & communication | 2020 |
| Pathology Consultancy Ltd | Health & social care | 2012 |
| Pathri Consulting Limited | Professional & scientific | 2018 |
| Pathsolve Ltd | Health & social care | 2023 |
| Pathsongs Ltd | Information & communication | 2024 |
| Pathways Consultancy and Training Services Ltd | Professional & scientific | 2022 |
| Patience Company Limited | Health & social care | 2015 |
| Patience Properties Ltd | Real estate | 2021 |
| Patient Zero Ltd | Professional & scientific | 2023 |
| Patina House Limited | Wholesale & retail | 2024 |
| Patina Roofing Services Ltd | Construction | 2021 |
| Patisserie Vanilla Ltd | Manufacturing | 2022 |
| Patmos Consultants Limited | Financial services | 2008 |
| Pato Kitchen Ltd | Hospitality | 2025 |
| Paton Hawksley Education Limited | Manufacturing | 1959 |
| Patriarch Tree Services Limited | Agriculture & fishing | 2025 |
| Patrick Blake Freelancer Ltd | Professional & scientific | 2019 |
| Patrick James Professional Lets Ltd | Real estate | 2023 |
| Patrick James Property Limited | Real estate | 2015 |
| Patrick James Property Management Ltd. | Administrative & support | 2003 |
| Patrick Krause Limited | Arts & recreation | 2019 |
| Patrick Pinker (Game Farm) Limited | Wholesale & retail | 1967 |
| Patrick Royston Ltd | Administrative & support | 2025 |
| Patrick's Business Support Limited | Administrative & support | 2017 |
| Patrickmoloneymarketing Ltd | Professional & scientific | 2022 |