| Pascoe’S Cornish Seafood Ltd | Agriculture & fishing | 2026 |
| Pastelle Blue Limited | Health & social care | 2015 |
| PB Services (Cornwall) Ltd | Agriculture & fishing | 2021 |
| Pencroft Catering Ltd | Hospitality | 2024 |
| Pendeen Parc Management Company Limited | Households | 2016 |
| Peninsula Landscaping and Maintenance Limited | Administrative & support | 2010 |
| Peninsula Therapy Ltd | Health & social care | 2026 |
| Penmellyn Limited | Construction | 2011 |
| Penolva Projects Limited | Construction | 2004 |
| Penrasl Ltd | Agriculture & fishing | 2018 |
| Penrose Close Management Company Limited | Households | 2023 |
| Percival (Cornwall) Limited | Agriculture & fishing | 2023 |
| Personalised Printing Ltd | Manufacturing | 2024 |
| Pervisum Ltd | Professional & scientific | 2006 |
| Peter Thornley Limited | Professional & scientific | 2016 |
| Peverell Consulting Limited | Hospitality | 2020 |
| Phay Macdowel Limited | Professional & scientific | 2003 |
| Phil Gould: Carpentry + Limited | Other services | 2018 |
| Phoenix Builders Cornwall Ltd | Construction | 2021 |
| Phone IT ICT Ltd | Information & communication | 2011 |
| Piatto Limited | Hospitality | 2024 |
| Piccolo Orto CIC | Agriculture & fishing | 2024 |
| PIP Kevern Plumbing Services Ltd | Construction | 2013 |
| Pixie Payroll Services Ltd | Professional & scientific | 2021 |
| PJ Avionics Ltd | Administrative & support | 2019 |
| PJ Designs Cornwall Limited | Manufacturing | 2024 |
| Plantwise Services Ltd | Real estate | 2024 |
| Play Village South Cornwall Ltd | Education | 2024 |
| Plumb Crazy Ltd | Construction | 1998 |
| Plumbrite Heating & Plumbing Limited | Construction | 2005 |
| Polbream Limited | Real estate | 2021 |
| Polliander Studios Limited | Education | 2026 |
| POM Cornwall Ltd | Agriculture & fishing | 2025 |
| POP UP Fudge Ltd | Manufacturing | 2025 |
| Poppy Court (Cornwall) Management Company Limited | Households | 2021 |
| Pops Collective CIC | Health & social care | 2026 |
| Port Padel Ltd | Arts & recreation | 2026 |
| Porth Morvah Ltd | Health & social care | 2026 |
| Porth Studio CIC | Wholesale & retail | 2024 |
| Porthcew Limited | Real estate | 2026 |
| Porthgwara Nursing Home LLP | | 2004 |
| Porthkerris Limited | Agriculture & fishing | 2010 |
| Porthleah Management Company Limited | Households | 2026 |
| Porthleven Building Contractors Limited | Construction | 2020 |
| Porthleven Cornish Crab Limited | Manufacturing | 2016 |
| Porthleven Fitness Collective Ltd | Arts & recreation | 2023 |
| Porthleven Holdings Limited | Financial services | 1993 |
| Porthleven Regeneration Community Interest Company | Other services | 2013 |
| Porthleven Supermarket Limited | Wholesale & retail | 1995 |
| Praa Holdings Limited | Hospitality | 2019 |
| Precious Plastic Kernow CIC | Manufacturing | 2023 |
| Priestess of Kernow C.I.C. | Other services | 2026 |
| Primary PC Retail Limited | Wholesale & retail | 2016 |
| Primary PC Solutions Limited | Information & communication | 2007 |
| Properjob Property Services Limited | Administrative & support | 2025 |
| Property Solutions Cornwall Ltd | Construction | 2025 |
| Provenance Brands Limited | Hospitality | 2012 |
| Purely Property Limited | Construction | 2010 |
| Purfaction Ltd | Professional & scientific | 2015 |
| Quest Cognitive Hypnotherapy Practitioners Association Community Interest Company | Other services | 2015 |
| R & G Motors Limited | Wholesale & retail | 2014 |
| R a Design Limited | Professional & scientific | 2012 |
| R D and R E Curnow Limited | Construction | 2004 |
| R E Goddard Limited | Agriculture & fishing | 2026 |
| R H Jane & Sons Ltd | Construction | 2005 |
| R&R Fascia's Ltd | Construction | 2020 |
| R&T Stoves Ltd | Construction | 2020 |
| Radiocode Limited | Arts & recreation | 2011 |
| Rainbow Cornwall Limited | Hospitality | 2023 |
| Randle Thomas LLP | | 2010 |
| RAW Wool Company Ltd | Wholesale & retail | 2021 |
| RDC1 Ltd | Professional & scientific | 2020 |
| Rebuild South West Ltd | Construction | 2013 |
| Red River Inn Ltd | Hospitality | 2023 |
| Reds Group Limited | Professional & scientific | 2017 |
| Refined Vehicle Repairs Limited | Manufacturing | 2024 |
| Regenerate Mind & Body Ltd | Health & social care | 2023 |
| Rent a Bus's Ltd | Administrative & support | 2023 |
| Rental Asset Holdings AWP Limited | Real estate | 2024 |
| Resolve Stoves Limited | Construction | 2020 |
| RF MET Consult Ltd | Professional & scientific | 2022 |
| RH Signs Cornwall Ltd | Other services | 2020 |
| Richards Family Estate Ltd | Wholesale & retail | 2021 |
| Richland Foods Limited | Agriculture & fishing | 2024 |
| Richland Holdings Limited | Financial services | 2024 |
| Ridge Accountancy & Payroll Services Ltd | Professional & scientific | 2018 |
| Rival Crafts Ltd | Manufacturing | 2019 |
| River Boatyard Ltd. | Transport & logistics | 2022 |
| Riviera Club Estate Management Company Limited | Households | 2009 |
| RJS Cleaning Services Limited | Administrative & support | 2015 |
| RM Build Services Limited | Construction | 2016 |
| Rock Oyster Festival Limited | Arts & recreation | 2019 |
| Rocket Gardens Limited | Agriculture & fishing | 2006 |
| Rocket Holdings (Cornwall) Limited | Financial services | 2022 |
| Rogers Carpentry Limited | Construction | 2013 |
| Rogue Elements SW Ltd | Wholesale & retail | 2016 |
| Roll the Dice Cornwall C.I.C. | Wholesale & retail | 2024 |
| Rosen Holidays Limited | Hospitality | 2023 |
| Rosscos Cafe Limited | Wholesale & retail | 2009 |
| Rosuick Limited | Agriculture & fishing | 2025 |