| Phase Electrical Supplies (Leicester) Ltd | Construction | 2018 |
| Phase Four Creative Limited | Financial services | 2013 |
| Phase Solar Ltd | Construction | 2022 |
| Phat BOY Ltd | Wholesale & retail | 2019 |
| Phat Buns (Leicester) Limited | Hospitality | 2020 |
| Phauria Limited | Professional & scientific | 2022 |
| PHB Management Consultancy Services Ltd | Professional & scientific | 2018 |
| PHC Consulting Limited | Information & communication | 2013 |
| Phebee Wendy Baroness Dalziel Ltd | Professional & scientific | 2024 |
| Phekani Designs Limited | Professional & scientific | 2015 |
| Phenix International Development Ltd | Wholesale & retail | 2026 |
| Pheonix Transport Ltd | Transport & logistics | 2026 |
| PHF Holdings Limited | Financial services | 2022 |
| Phil & Linda Senior Care Ltd | Health & social care | 2010 |
| Phil Bond Wall & Floor Tiling Ltd | Professional & scientific | 2013 |
| Phil Cleaning Services Ltd | Administrative & support | 2026 |
| Phil Lacey Cars Ltd | Wholesale & retail | 2023 |
| Phil Taylor (Contracts) Limited | Construction | 1997 |
| Phil Turner Enterprises Ltd | Transport & logistics | 2019 |
| Philadelphia Cargo Shipping Agency Ltd | Wholesale & retail | 2018 |
| Philadelphia Motors Ltd | Wholesale & retail | 2025 |
| Philandward Limited | Real estate | 2018 |
| Philharmonic Audio Visual Limited | Other services | 2009 |
| Philip Barker (Coachbuilder) Limited | Manufacturing | 2001 |
| Philip Dowse Limited | Manufacturing | 1998 |
| Philip Hewitt Limited | Information & communication | 2024 |
| Philip Hoyland Limited | Wholesale & retail | 2018 |
| Philip M Hewitt LLP | | 2016 |
| Philip Wright (2020) Ltd | Financial services | 2019 |
| Philip Wright (Transport) Limited | Construction | 2004 |
| Philkays Enterprises Limited | Health & social care | 2016 |
| Phillip P Bott Limited | Professional & scientific | 2017 |
| Phillipson Consulting Ltd | Public administration | 2025 |
| Phillyz Smach LC Ltd | Hospitality | 2026 |
| Phillyz Smash Leicester Ltd | Hospitality | 2025 |
| Philmac Scaffolding Limited | Construction | 2022 |
| PHJ Retail Limited | Wholesale & retail | 2022 |
| PHO LE Ltd | Hospitality | 2025 |
| Phobos Consulting Ltd | Information & communication | 2018 |
| Phobos Properties Ltd | Real estate | 2023 |
| Phobos Software Ltd | Information & communication | 2018 |
| Phoebus Mobile Valeting Limited | Other services | 2026 |
| Phoenix (Leicester) Holdings Limited | Financial services | 2023 |
| Phoenix (Leicester) Limited | Construction | 1991 |
| Phoenix A.R.C Ltd | Wholesale & retail | 2007 |
| Phoenix Agencies (Ashby) Limited | Wholesale & retail | 2003 |
| Phoenix Agenda Supplementary School CIC | Education | 2023 |
| Phoenix Asset Holdings Limited | Real estate | 2026 |
| Phoenix Autos Garage Ltd | Wholesale & retail | 2026 |
| Phoenix Counselling & Psychotherapy Ltd | Health & social care | 2019 |
| Phoenix Electrical Contractors Ltd. | Construction | 2024 |
| Phoenix Electrical Installations Ltd | Construction | 2014 |
| Phoenix Health Partnership Ltd | Health & social care | 2020 |
| Phoenix House (3 Berridge Street) RTM Company Limited | Households | 2025 |
| Phoenix Housing Group Ltd | Real estate | 2025 |
| Phoenix Interior Finishes Ltd | Construction | 2021 |
| Phoenix Jewellery Limited | Wholesale & retail | 2005 |
| Phoenix JT Ltd | Real estate | 2025 |
| Phoenix Lifestyle Coach Limited | Real estate | 2005 |
| Phoenix PA Holdings Ltd | Manufacturing | 2025 |
| Phoenix Parker Holdings Limited | Financial services | 2007 |
| Phoenix Parker Properties Ltd | Real estate | 2010 |
| Phoenix Raven Recruitment Ltd | Administrative & support | 2019 |
| Phoenix Royale Ltd | Wholesale & retail | 2020 |
| Phoenix SAI Limited | Administrative & support | 2020 |
| Phoenix Supplementary School Limited | Education | 2015 |
| Phoenix Tech Consultancy Limited | Information & communication | 2026 |
| Phoenix Transworld Limited | Extraterritorial | 2000 |
| Phoenix Viii Holdings Limited | Financial services | 2026 |
| Phoenix Yard Ltd | Hospitality | 2021 |
| Phoinix Healthcare Ltd | Administrative & support | 2024 |
| Phone ACT Ltd | Wholesale & retail | 2021 |
| Phone Bite Ltd | Wholesale & retail | 2019 |
| Phone City MM Ltd | Wholesale & retail | 2010 |
| Phone Sense Ltd | Wholesale & retail | 2016 |
| Phonefinder Limited | Wholesale & retail | 2003 |
| Phonestall.Com Limited | Wholesale & retail | 2002 |
| Phos Health Ltd | Information & communication | 2026 |
| Photo DR Ltd | Information & communication | 2019 |
| Photobooths by Kiran Ltd | Professional & scientific | 2020 |
| Photon Orgone Ltd | Manufacturing | 2018 |
| Photrix Studio Ltd | Professional & scientific | 2025 |
| Phrontis Property Ltd | Real estate | 2019 |
| PHS 4 U Limited | Construction | 2017 |
| PHS Plumbing Solutions Limited | Construction | 2016 |
| PHS Property Solutions Ltd | Real estate | 2021 |
| Phulnath Limited | Hospitality | 2016 |
| PHV Investments Limited | Real estate | 2017 |
| Physical Marketing Ltd | Professional & scientific | 2020 |
| Physiclinic Ltd | Other services | 2017 |
| Physio Care Services Ltd | Health & social care | 2025 |
| Physioit Systems Ltd | Information & communication | 2017 |
| Physioneeds Limited | Health & social care | 1991 |
| Physiotherapy Leicester Ltd | Health & social care | 2023 |
| Physiotherapy PVT Ltd | Wholesale & retail | 2025 |
| Physique Harmony Ltd | Transport & logistics | 2017 |
| PIC2 Limited | Construction | 2024 |
| Piccadilly Cinemas Limited | Information & communication | 2014 |
| Piccadilly Lane Limited | Information & communication | 2012 |
| Piccadilly Pizza Ltd | Hospitality | 2026 |