| Pavilion Fine Homes Limited | Extraterritorial | 2018 |
| Pawfect Stays UK Ltd | Administrative & support | 2019 |
| PB Construction (Cornwall) Limited | Construction | 2008 |
| Pbpm Consulting Ltd | Professional & scientific | 2020 |
| PCG Newquay Limited | Hospitality | 2025 |
| PDA Renovations Ltd | Construction | 2026 |
| Peace Haven Care Limited | Health & social care | 2020 |
| Peak Boutique Surf Retreat Ltd | Hospitality | 2026 |
| Pen-Y-Morfa Management Company Limited | Households | 2013 |
| Penhallow Court Management Limited | Households | 1999 |
| Penhallow House Ltd | Hospitality | 2024 |
| Penhalls Drive Management Company Limited | Real estate | 2023 |
| Peninsula Integrated Health Ltd | Professional & scientific | 2026 |
| Penmerrin Court (Management Company) Limited | Households | 1991 |
| Penpol Property Ltd | Real estate | 2026 |
| Penrhiwpistyll Cottages Management Company Limited | Households | 2010 |
| Pentashot UK Ltd | Wholesale & retail | 2022 |
| Pentire Court Association Limited | Households | 1977 |
| Pentire Financial Limited | Financial services | 2017 |
| Pentire Green Cornwall Management Limited | Real estate | 2021 |
| Pentire Heights Limited | Households | 2004 |
| Pentire Mews Management Ltd | Households | 2006 |
| Pentire Planning Consultancy Ltd | Professional & scientific | 2015 |
| Pentire Plumbing & Heating Ltd | Construction | 2024 |
| Pentreath Limited | Health & social care | 1991 |
| Penvearn Wealth Management Ltd | Financial services | 2015 |
| Penvose Farm Shop Limited | Wholesale & retail | 2024 |
| Perch & Ponder Ltd | Professional & scientific | 2020 |
| Peregrine Dynamics Limited | Professional & scientific | 2025 |
| Perranporth and District Model Engineering Society Limited | Professional & scientific | 1980 |
| Perranporth Residents Management Company Limited | Households | 2018 |
| Peskador Ltd | Wholesale & retail | 2026 |
| Pet Centre Holdings Limited | Financial services | 2023 |
| Pharmaestheticuk Limited | Other services | 2023 |
| Pharmakey Personnel Ltd | Administrative & support | 2017 |
| Pharmavir Limited | Professional & scientific | 2019 |
| Phil Benton Consulting Limited | Professional & scientific | 2022 |
| Phone Master Newquay Limited | Information & communication | 2023 |
| Pinball Race Limited | Information & communication | 2024 |
| Pink Sky Properties Cornwall Ltd | Real estate | 2022 |
| Pink Toucan Limited | Wholesale & retail | 2018 |
| PIP Hambling Ltd | Professional & scientific | 2023 |
| Pipeline Brewing Co Ltd | Manufacturing | 2022 |
| Piran Composites Ltd. | Manufacturing | 2008 |
| Piran Machining Ltd. | Manufacturing | 2024 |
| Piran Technology Group Ltd. | Financial services | 2022 |
| Pittshanger Bidco Limited | Education | 2022 |
| Pittshanger Holdco Ltd | Financial services | 2022 |
| PK Industries Ltd | Wholesale & retail | 2022 |
| Planet Maintenance Academy Limited | Education | 2024 |
| Plastic Freedom Ltd | Wholesale & retail | 2018 |
| PLB Commercials Limited | Manufacturing | 2024 |
| Plumbing Services Cornwall Limited | Extraterritorial | 2023 |
| Plusplex Limited | Extraterritorial | 2019 |
| Plymouth Flying School Limited | Education | 2005 |
| Plyworx UK Ltd | Manufacturing | 2017 |
| Polka DOT Childcare Limited | Health & social care | 2022 |
| POR Food Limited | Hospitality | 2018 |
| Porky's Place Newquay Ltd | Wholesale & retail | 2016 |
| Porth Bean Court (Newquay) Limited | Real estate | 2015 |
| Porth Farm Cottages Limited | Households | 2008 |
| Porth Island Properties Limited | Real estate | 2026 |
| Porth Sands Limited | Hospitality | 2006 |
| Porth Valley Retreat Ltd. | Administrative & support | 2021 |
| Porthbean Court Management Company Limited | Real estate | 2001 |
| Porthblue Consultancy Limited | Education | 2025 |
| Powder&Paint Ltd | Information & communication | 2014 |
| PPE Point Limited | Wholesale & retail | 2022 |
| PPT Systems Ltd | Administrative & support | 2006 |
| Praabados Lodges Ltd | Hospitality | 2025 |
| Prd.Cm Limited | Construction | 2016 |
| Precipice Ltd | Information & communication | 2020 |
| Precision Automotive SW Limited | Wholesale & retail | 2025 |
| Premier Outdoor Structures Ltd | Construction | 2023 |
| Premium Inkjet Inks Ltd | Manufacturing | 2020 |
| Printmania Ltd | Professional & scientific | 2022 |
| Pristige Decking and Construction Ltd | Construction | 2025 |
| Proffbuild Ltd | Construction | 2024 |
| Proflame (South West) Limited | Construction | 2019 |
| Profleet Plant & Auto Hire Solutions Limited | Administrative & support | 2026 |
| Project Danny Limited | Real estate | 2006 |
| Project Node Ltd | Information & communication | 2025 |
| Projecteightythree Ltd | Wholesale & retail | 2019 |
| Projen Holidays Limited | Hospitality | 2003 |
| Property Development Forum Ltd | Other services | 2025 |
| Proud Disturber Limited | Information & communication | 2020 |
| Prow Media Ltd | Professional & scientific | 2019 |
| Psalm 1 Limited | Financial services | 2011 |
| PUB N Food BIZ Limited | Hospitality | 2011 |
| Pumbear Ltd | Real estate | 2024 |
| Pure Artificial Grass Ltd | Construction | 2018 |
| Pure Green Clean UK Ltd | Administrative & support | 2021 |
| Pure Properties Newquay Limited | Real estate | 2024 |
| Pureclean Newquay Ltd | Other services | 2017 |
| Purelight Architecture Ltd | Professional & scientific | 2018 |
| Purple Horseradish Ltd | Real estate | 2025 |
| QA Advisory Limited | Financial services | 2023 |
| Quay Accountants Ltd | Professional & scientific | 2024 |
| Quay Construction (Cornwall) Limited | Construction | 2018 |
| Quay Consultancy (Cornwall) Ltd | Professional & scientific | 2021 |