| Padda Housing Limited | Real estate | 2000 |
| Padda Investments (London) Limited | Real estate | 2017 |
| Paddock Development (Kent) Ltd | Construction | 2026 |
| Page Design and Events Ltd | Administrative & support | 2016 |
| Painthadelic Limited | Construction | 2021 |
| Palahi Trading Ltd | Wholesale & retail | 2018 |
| Palmvale Limited | Real estate | 1986 |
| Panesar Property Services Limited | Real estate | 2021 |
| Panjab Digital Library (UK) | Arts & recreation | 2011 |
| PAP & Ball Joinery Ltd | Manufacturing | 2021 |
| Papaya Decorating Ltd | Manufacturing | 2019 |
| Papaya Projects Ltd | Manufacturing | 2026 |
| Paradise Biryani Ltd | Hospitality | 2023 |
| Pardis Property Ltd | Real estate | 2022 |
| Pargon 80 Ltd | Construction | 2019 |
| Parikrama Limited | Information & communication | 2023 |
| Parity Concepts Limited | Information & communication | 2013 |
| Parkdale West Limited | Extraterritorial | 2010 |
| Parkers Estates Ltd. | Real estate | 2018 |
| Parkfield Osterley Ltd | Households | 2020 |
| Parkway Developments Limited | Construction | 1993 |
| Parovent Limited | Wholesale & retail | 2024 |
| Parsada Limited | Real estate | 2015 |
| Parthenon 2 Limited | Information & communication | 2010 |
| PAS Consulting Solutions Limited | Professional & scientific | 2013 |
| Pasto Development Limited | Construction | 2018 |
| Pasto Electrical Limited | Construction | 2008 |
| Patient Phoenix Ltd | Professional & scientific | 2020 |
| Patternme Ltd | Information & communication | 2021 |
| Pattie Care Consultancy Ltd | Health & social care | 2013 |
| Paul's Carpentry and Building Services Ltd | Construction | 2023 |
| Pauline Madondo Limited | Health & social care | 2023 |
| Pav&Bub Services Ltd | Construction | 2019 |
| Pavillon Rouge Ltd | Hospitality | 2011 |
| Paws Unleashed Ltd | Agriculture & fishing | 2025 |
| Paylander Limited | Health & social care | 2003 |
| Payrollplus Solutions Limited | Administrative & support | 2025 |
| PBF MFG Co. LLP | | 2019 |
| PC CAD BIM Modelling Ltd | Construction | 2021 |
| Pcubes Technologies Limited | Information & communication | 2011 |
| PDB Hestia Limited | Real estate | 2026 |
| PDK Properties Limited | Construction | 2022 |
| Peace Property Investment Limited | Construction | 2015 |
| Peci Construction Ltd | Construction | 2023 |
| Pecten Limited | Information & communication | 2018 |
| Pegasus Film & TV Catering Limited | Hospitality | 2021 |
| Pendar Marketing Ltd | Information & communication | 2018 |
| People Services Consulting Ltd | Administrative & support | 2024 |
| Perfect Form Carpentry Ltd | Manufacturing | 2022 |
| Perfectmaid Cleaning & Handyman Services Ltd | Administrative & support | 2025 |
| Performance Marketing Limited | Professional & scientific | 2023 |
| Periwin Solutions Limited | Information & communication | 2025 |
| Perk Coffee Limited | Hospitality | 2018 |
| Permanent Hire Limited | Administrative & support | 2019 |
| Persian Mezze Limited | Hospitality | 2025 |
| PES Investments Ltd | Real estate | 2020 |
| Pet Tidy Ltd | Wholesale & retail | 2025 |
| Peter Bonner Consulting Ltd | Professional & scientific | 2025 |
| Petersfield Car Wash Ltd | Administrative & support | 2026 |
| PG Ecom Ventures Ltd | Wholesale & retail | 2025 |
| PGF Plumbing Ltd | Construction | 2016 |
| Pharham Limited | Health & social care | 2022 |
| Pharm R.S Ltd | Health & social care | 2021 |
| Pharmaceutics (UK) Ltd | Administrative & support | 2012 |
| Pharmadose Limited | Wholesale & retail | 2010 |
| Pharmareg Connect Ltd | Information & communication | 2025 |
| Pharmora Consultancy Ltd | Professional & scientific | 2026 |
| Pharmserv UK Ltd. | Professional & scientific | 2006 |
| Pheonix Holdings Limited | Professional & scientific | 2025 |
| PHG5 Holdings Limited | Real estate | 2024 |
| PHG5 Limited | Information & communication | 2016 |
| Phoenix Maxx Ltd | Wholesale & retail | 2020 |
| Photography by Valentina Ltd | Professional & scientific | 2018 |
| Physioworks Associates Limited | Health & social care | 1997 |
| Picador Consulting Ltd. | Information & communication | 1996 |
| Pinnacle Building and Roofing Limited | Construction | 2012 |
| Pinnacle Russian Language Academy Limited | Education | 2025 |
| Pinto Clothing Outlet Limited | Wholesale & retail | 2021 |
| PIP Design Limited | Professional & scientific | 2018 |
| Pirnar MVP Ltd | Construction | 2018 |
| Pitchside Therapy Ltd | Health & social care | 2026 |
| Piyakona Limited | Health & social care | 2012 |
| PJP Builders Ltd | Construction | 2020 |
| Pkdwholesales Ltd | Wholesale & retail | 2019 |
| Pkmp Communication Limited | Information & communication | 2013 |
| Plainspeak Systems Ltd | Information & communication | 2026 |
| Plasma Infotech Ltd | Information & communication | 2019 |
| Platinum Grade Limited | Construction | 2020 |
| Plot Twist Pictures Limited | Professional & scientific | 2024 |
| Plots 1-39 Hurworth Avenue Residents Management Company Limited | Real estate | 2005 |
| PLP Soft Solutions Ltd | Information & communication | 2023 |
| Plus Estates Limited | Real estate | 2011 |
| Plus Pursuits Limited | Education | 2012 |
| Plus Size Fashion Ltd | Wholesale & retail | 2016 |
| Plus Staff Recruitment Limited | Education | 2010 |
| Pmgranite Ltd | Construction | 2014 |
| PNR Groceries Ltd | Wholesale & retail | 2026 |
| POD Project Management Ltd | Construction | 2026 |
| POH Productions Ltd | Arts & recreation | 2020 |
| Poised Bespoke Limited | Other services | 2021 |