| Peak Home Buyers Limited | Real estate | 2020 |
| Peak Horizon Financial Limited | Financial services | 2025 |
| Peak Jeep Limited | Wholesale & retail | 2018 |
| Peak Money Limited | Professional & scientific | 2015 |
| Peak Motorhomes Limited | Wholesale & retail | 2009 |
| Peak MSK Ltd | Health & social care | 2025 |
| Peak Optimisation Ltd | Information & communication | 2021 |
| Peak Payroll Limited | Other services | 2022 |
| Peak Playgrounds Limited | Manufacturing | 2014 |
| Peak Probate Limited | Other services | 2022 |
| Peak Products Limited | Wholesale & retail | 2012 |
| Peak Property Care Ltd | Construction | 2025 |
| Peak Property Renovations Limited | Construction | 2026 |
| Peak Property Venture Group Ltd | Real estate | 2026 |
| Peak Reliability Consultants Ltd | Professional & scientific | 2024 |
| Peak Retail Ltd | Wholesale & retail | 2017 |
| Peak Retreat Properties Ltd | Real estate | 2025 |
| Peak Risk Solutions Ltd | Financial services | 2020 |
| Peak Smile Studio Limited | Health & social care | 2010 |
| Peak Stores (Chesterfield) Limited | Wholesale & retail | 2006 |
| Peak Surveying Services Limited | Professional & scientific | 2013 |
| Peak Technical Solutions Ltd | Information & communication | 2025 |
| Peak Underfloor Heating Limited | Construction | 2015 |
| Peak Vans Ltd | Wholesale & retail | 2024 |
| Peak View Consulting Services Ltd | Information & communication | 2026 |
| Peak View Landscaping Limited | Administrative & support | 2023 |
| Peak Working Health Limited | Health & social care | 2023 |
| Peakbridge Global Limited | Agriculture & fishing | 2014 |
| Peakdale Outdoor Ltd | Wholesale & retail | 2013 |
| Peakmere Land Limited | Construction | 2026 |
| Peakmere Property & Land Limited | Construction | 2026 |
| Peakstone Property Ltd | Real estate | 2025 |
| Pear Tree Farm Landscapes Limited | Administrative & support | 2002 |
| Pear Tree Farm Livery (UK) Ltd | Agriculture & fishing | 2024 |
| Pear Trees Property Ltd | Real estate | 2024 |
| Peart Limited | Professional & scientific | 1993 |
| Peedah Limited | Wholesale & retail | 2014 |
| Peel Pottery Ltd | Arts & recreation | 2023 |
| Pegasus Plumbing and Heating Limited | Energy | 2018 |
| Peglar Limited | Administrative & support | 2021 |
| Pelagonius Limited | Financial services | 2022 |
| Pelagonius Properties Limited | Real estate | 2020 |
| Pelican Life Ltd | Professional & scientific | 2024 |
| Pembery Building Ltd | Construction | 2015 |
| Pembery Contractors Ltd | Construction | 2020 |
| Pembery Developments Limited | Real estate | 2019 |
| Penang Street Food Ltd | Hospitality | 2025 |
| Pengrad Limited | Professional & scientific | 2013 |
| Penk Insurance Services Limited | Financial services | 1988 |
| Pennine Mortgages Ltd | Financial services | 2008 |
| Penny Bars Limited | Hospitality | 2023 |
| Penny Cranes Limited | Manufacturing | 2014 |
| Penny Engineering Group Limited | Manufacturing | 2021 |
| Penny Hydraulics Limited | Manufacturing | 2022 |
| Penny Lifting Limited | Manufacturing | 2012 |
| Penny Lifts Limited | Manufacturing | 2014 |
| Penny Nuclear Limited | Manufacturing | 2011 |
| Pennypopshops Ltd | Wholesale & retail | 2026 |
| Peponi Trading Ltd | Wholesale & retail | 2023 |
| Pepper Food Ltd | Hospitality | 2025 |
| PER TE UK Ltd | Wholesale & retail | 2026 |
| Peregrine Networks Ltd | Information & communication | 2015 |
| Perennial Service Solutions Limited | Administrative & support | 2017 |
| Perfect Car Care Ltd | Manufacturing | 2003 |
| Perfect Connexions Limited | Wholesale & retail | 2023 |
| Perfect Day Stylists Limited | Other services | 2022 |
| Perfect Engines Ltd | Wholesale & retail | 2025 |
| Perfidelis Ltd | Construction | 2009 |
| Perkins International Limited | Extraterritorial | 2002 |
| Permabound Limited | Wholesale & retail | 2012 |
| Permafast Limited | Wholesale & retail | 1987 |
| Perpetual Inspiration Ltd | Other services | 2018 |
| Pervasive Group Limited | Wholesale & retail | 2016 |
| Peta (Holdings) Ltd | Financial services | 2020 |
| Petal and Stone Gifts Ltd | Manufacturing | 2026 |
| Peter B Communications Ltd | Information & communication | 1999 |
| Peter Smythe Properties Limited | Real estate | 2020 |
| Peter Taylor Telehandling Services Ltd | Construction | 2015 |
| Peter Watmore Ltd | Professional & scientific | 2023 |
| Peterland Tech Ltd | Information & communication | 2020 |
| Petersfield Homes Management Company Limited | Real estate | 2018 |
| Petrus Projects Ltd | Construction | 2019 |
| PETS4JETS Ltd | Transport & logistics | 2019 |
| Petticoat Farm Properties Ltd. | Real estate | 1994 |
| Peveril Group Ltd | Manufacturing | 2021 |
| Peveril Place Ltd | Real estate | 2015 |
| Pevv Development Limited | Construction | 2020 |
| PEW Training Ltd | Administrative & support | 2021 |
| PFL EOT Limited | Financial services | 2022 |
| Phennex Limited | Construction | 2023 |
| Phenomenal Apps. Limited | Information & communication | 2010 |
| Philip Baines Ltd | Agriculture & fishing | 2013 |
| Phillip Goulding Limited | Arts & recreation | 2016 |
| Phillips & Sons Ltd | Construction | 2024 |
| Phillips IT Ltd | Information & communication | 2017 |
| Phoenix Asbestos Consultancy Ltd | Construction | 2021 |
| Phoenix Brick Company Limited | Professional & scientific | 1993 |
| Phoenix Cottages Ltd | Health & social care | 1999 |
| Phoenix Experience Ltd | Wholesale & retail | 2022 |
| Phoenix Inspired Properties Ltd | Real estate | 2019 |