| Opora Consulting Limited | Wholesale & retail | 2026 |
| Orangelife Ltd | Extraterritorial | 2023 |
| Orientelle Limited | Wholesale & retail | 2003 |
| Orion Development Group Ltd | Real estate | 2025 |
| Orton Property Development Limited | Real estate | 2022 |
| Otherton Microlight Training Limited | Education | 2026 |
| OTT Light Haulage Limited | Transport & logistics | 2021 |
| Otter Controls Limited | Manufacturing | 1946 |
| Otters Brook Buxton Management Limited | Real estate | 2008 |
| Ottersbrook Consulting Limited | Professional & scientific | 2020 |
| Outlier Data Ltd | Information & communication | 2024 |
| Owen Davis Limited | Professional & scientific | 2022 |
| Owen James (Cabinet Makers) Ltd | Manufacturing | 2021 |
| P & J FOY Limited | Hospitality | 2026 |
| P a Excavations Limited | Construction | 2013 |
| P Murray Services Ltd | Administrative & support | 2022 |
| P.A. Henderson Limited | Other services | 2024 |
| PA63 Ltd | Professional & scientific | 2026 |
| PAG Quantum Limited | Professional & scientific | 2017 |
| Palace Court (Buxton) Limited | Real estate | 1990 |
| Panicium Limited | Professional & scientific | 2018 |
| Panzoic Ltd | Professional & scientific | 2026 |
| Papa-Bravo Aviation Limited | Transport & logistics | 2001 |
| Paragliding Darley Moor Limited | Arts & recreation | 2025 |
| Paramotoring Darley Moor Limited | Arts & recreation | 2025 |
| Park Hall (Buxton) Limited | Other services | 2003 |
| Parkbench Limited | Information & communication | 2008 |
| Parkhouse Accountancy Ltd | Professional & scientific | 2025 |
| Passage GRP Invest Limited | Extraterritorial | 2014 |
| Passage GRP Limited | Extraterritorial | 2014 |
| Patchrobe Limited | Information & communication | 2009 |
| Patent Outsourcing Limited | Professional & scientific | 2000 |
| Paul Hesp Management Consultancy Limited | Professional & scientific | 2019 |
| Paul Johnson Tree Management Limited | Agriculture & fishing | 2016 |
| Paul Monaghan Associates Limited | Professional & scientific | 2012 |
| Paul Simon Consulting Limited | Professional & scientific | 2023 |
| Pause for Thought Counselling Ltd | Health & social care | 2023 |
| Pawfect - Walkies Limited | Other services | 2022 |
| Paws and Play Online Limited | Other services | 2017 |
| Peach Programming Services Limited | Information & communication | 1996 |
| Peacock Adhd Consultancy Ltd | Health & social care | 2026 |
| Peak Access Contractors Ltd | Construction | 2024 |
| Peak Agricultural Services Limited | Administrative & support | 2023 |
| Peak Arts Therapies CIC | Health & social care | 2025 |
| Peak Ascent Cycles Limited | Wholesale & retail | 2018 |
| Peak Building Design Ltd | Professional & scientific | 2023 |
| Peak Capacity Storage Ltd | Real estate | 2025 |
| Peak Collaborative Ltd | Professional & scientific | 2025 |
| Peak Commercial Property Limited | Real estate | 2026 |
| Peak Construction Building Limited | Construction | 2021 |
| Peak Dale Lakes Limited | Extraterritorial | 2015 |
| Peak Dale Products Limited | Manufacturing | 1997 |
| Peak District Campers Ltd | Manufacturing | 2024 |
| Peak District Dairy Limited | Manufacturing | 2003 |
| Peak District Decorators Ltd | Construction | 2026 |
| Peak District Geotechnical Limited | Financial services | 2026 |
| Peak District Laundry Limited | Other services | 2023 |
| Peak District Luxury Mini Van Tours Ltd | Administrative & support | 2026 |
| Peak District Properties Limited | Real estate | 2024 |
| Peak District Property Limited | Hospitality | 2018 |
| Peak E&C Limited | Professional & scientific | 2021 |
| Peak Eco Ltd | Construction | 2010 |
| Peak Electronic Design Ltd. | Manufacturing | 1995 |
| Peak Fish Surveys Ltd | Professional & scientific | 2022 |
| Peak Flowers Ltd | Wholesale & retail | 2023 |
| Peak Hideaways Ltd | Hospitality | 2021 |
| Peak Hotel Limited | Hospitality | 2014 |
| Peak Inns Limited | Hospitality | 2013 |
| Peak Laundry & Housekeeping Services Ltd | Other services | 2026 |
| Peak NET Limited | Information & communication | 1996 |
| Peak Pantry Ltd | Manufacturing | 2025 |
| Peak Photography Services Limited | Other services | 2012 |
| Peak Podiatry Ltd | Health & social care | 2018 |
| Peak Precision Football Ltd | Education | 2026 |
| Peak Property Lettings Ltd | Real estate | 2019 |
| Peak Property Rentals Ltd | Real estate | 2022 |
| Peak RPA Limited | Professional & scientific | 2004 |
| Peak Skilled Services Limited | Construction | 2024 |
| Peak Therapy Ltd | Education | 2025 |
| Peak Trailers Ltd | Wholesale & retail | 2025 |
| Peak TRI Store Ltd | Wholesale & retail | 2022 |
| Peak TTS Ltd | Manufacturing | 2022 |
| Peak Vale (Buxton) Management Company Limited | Households | 1995 |
| Peak Vendors Limited | Extraterritorial | 2023 |
| Peak Walking Adventures Limited | Arts & recreation | 2022 |
| Peak-Amc- Ltd | Mining & quarrying | 2024 |
| Peakaboo Boutique Limited | Wholesale & retail | 2024 |
| Peakco Limited | Manufacturing | 2007 |
| Peakcraft Limited | Construction | 2021 |
| Peakland Developments Limited | Real estate | 2003 |
| Peaklander Leisure Ltd | Hospitality | 2022 |
| Peaklander Ltd | Manufacturing | 2019 |
| Peakpact Ltd | Professional & scientific | 2025 |
| Peakprop Limited | Real estate | 2022 |
| Peaks FLY Fishing Limited | Education | 2018 |
| Peakstone Surveyors Limited | Professional & scientific | 2025 |
| Peakview Rentals Limited | Real estate | 2023 |
| Peardrops Bakery Ltd | Wholesale & retail | 2026 |
| PEJ Limited | Information & communication | 2010 |
| Pennine Aggregates Limited | Wholesale & retail | 2006 |