| Partners in Design Dorset Limited | Professional & scientific | 2022 |
| Passive Ventures Limited | Real estate | 2019 |
| Paul's of Pershore Ltd | Hospitality | 2024 |
| PC WOK Limited | Hospitality | 2022 |
| PD Freelance Consulting Ltd | Transport & logistics | 2026 |
| Peel Projects (U.K) Limited | Administrative & support | 2015 |
| Peloton Partners (UK) Limited | Professional & scientific | 2012 |
| Peloton Trustee Limited | Professional & scientific | 2022 |
| Penare Construction Ltd | Construction | 2017 |
| Pendeen Community Care Ltd. | Health & social care | 2001 |
| Pendigital Ltd | Information & communication | 2019 |
| Penhallow Cottages (Management) Limited | Real estate | 2017 |
| Penmere Drive Ltd | Extraterritorial | 2019 |
| Penmere Homes Limited | Construction | 2020 |
| Pennycomequick Falmouth Ltd | Hospitality | 2023 |
| Penrose Farm Developments Ltd | Construction | 2016 |
| Penryn & Falmouth Funeral Directors Ltd | Other services | 2023 |
| Penryn Chiropractic Limited | Health & social care | 2013 |
| Penryn College | Education | 2011 |
| Penryn Gymnastics Centre C.I.C. | Arts & recreation | 2014 |
| Penryn Joinery Limited | Manufacturing | 2023 |
| Penryn MOT & Repair Centre Ltd | Wholesale & retail | 2018 |
| Penryn Property Holdings Ltd | Construction | 2025 |
| Penryn Property Ltd | Construction | 2001 |
| Penryn RFC 1872 Ltd | Hospitality | 2017 |
| Penryn Traditional Fish and Chips Ltd | Hospitality | 2024 |
| Penzance Websites Limited | Information & communication | 2024 |
| Perfect-Fit Flooring Ltd | Construction | 2013 |
| Pesca Limited | Agriculture & fishing | 2025 |
| Peter Bentley Ltd | Professional & scientific | 2022 |
| Peterpritchard Ltd | Professional & scientific | 2022 |
| Phillips Healthcare Limited | Health & social care | 2016 |
| Phillips Osborne Limited | Administrative & support | 2003 |
| Phoenix Aero Ltd | Manufacturing | 2023 |
| Pimble and Mitchell Limited | Professional & scientific | 2019 |
| Pixelrain Limited | Information & communication | 2012 |
| Pixie Brewing Ltd | Manufacturing | 2024 |
| Planet Mutu Limited | Health & social care | 2021 |
| Pleasant Valley Ltd | Professional & scientific | 2015 |
| Plough Court Management Company Limited | Households | 1996 |
| PMD Cornwall Ltd | Construction | 2019 |
| Polhigey Property Company Limited | Real estate | 2020 |
| Polsethow Vale Management Limited | Households | 2010 |
| POM Media Limited | Information & communication | 2026 |
| Popplewell Property Ltd | Real estate | 2016 |
| Port Navas Yacht Club Limited | Arts & recreation | 2013 |
| Porters News Ltd | Wholesale & retail | 2018 |
| Porth PF International Advisory Limited | Professional & scientific | 2020 |
| Portland Advisers Ltd | Professional & scientific | 2010 |
| Portreath Stores Ltd | Wholesale & retail | 2009 |
| Positive Response Training and Consultancy Limited | Health & social care | 2012 |
| Positive Sparks Marketing Ltd | Professional & scientific | 2014 |
| Powys Yacht Management Ltd. | Professional & scientific | 1999 |
| Prime Emporium Limited | Wholesale & retail | 2023 |
| Prinhr Limited | Extraterritorial | 2010 |
| Prinz Publications(U.K.)Limited | Wholesale & retail | 1971 |
| Priority Supplies Ltd | Manufacturing | 2020 |
| Project Overwatch Limited | Information & communication | 2025 |
| Projectx Consult Ltd | Other services | 2018 |
| Promotor Marketing Ltd | Information & communication | 2013 |
| Property Developers IQ Limited | Education | 2024 |
| Proplaters Limited | Transport & logistics | 2018 |
| Proteus Subsea Inspection Ltd | Professional & scientific | 2022 |
| Protoedge Solutions Limited | Professional & scientific | 2025 |
| Provtree Limited | Information & communication | 2024 |
| Prudentshoppers Ltd | Hospitality | 2025 |
| PSF Capital Services II Limited | Financial services | 2021 |
| Puffin Homes (SW) Limited | Construction | 2011 |
| Purple Cloud IT Limited | Information & communication | 2015 |
| Purus Active Ltd | Health & social care | 2025 |
| Putney Chiropractic Limited | Health & social care | 2002 |
| Quadpart Investments Ltd | Real estate | 2022 |
| Quadrant Wharf Plot Management Company Limited | Households | 2017 |
| Quantavia Limited | Information & communication | 2019 |
| Quantum Spin Limited | Manufacturing | 2024 |
| Quarry Court Flats (Falmouth) Limited | Households | 1973 |
| Quay Bakery Ltd | Wholesale & retail | 2012 |
| Quay House Flats Ltd | Real estate | 2019 |
| Quicklase U.K. Limited | Health & social care | 2014 |
| Quintessential Tips Limited | Wholesale & retail | 2002 |
| Quotey Quotey Limited | Financial services | 2010 |
| R C Construction Cornwall Ltd | Construction | 2015 |
| R J Trevarthen Limited | Manufacturing | 2019 |
| Radix Communications Limited | Professional & scientific | 2007 |
| Ramble Labs Ltd | Professional & scientific | 2022 |
| Ranulf Scarbrough Consulting Ltd | Administrative & support | 2023 |
| Ratcliffe & Brown CIC | Other services | 2021 |
| RAW Capture Production Limited | Other services | 2015 |
| RD Petz Store Ltd | Wholesale & retail | 2022 |
| RDC Fields Ltd | Construction | 2019 |
| Reach Access South West Limited | Construction | 2022 |
| Rebel Pilates Ltd | Arts & recreation | 2021 |
| Rectory Limited | Households | 1998 |
| Red 15 Services Ltd | Financial services | 2020 |
| Red Concrete Pumping Ltd | Manufacturing | 2025 |
| Replevin Court Management (Penryn) Limited | Households | 1982 |
| Replica Aircraft Fabrications Ltd | Manufacturing | 2018 |
| Repower Holding Ltd | Financial services | 2025 |
| Repower Marine Limited | Wholesale & retail | 2011 |
| Repower Property Ltd | Real estate | 2025 |