| PD Assets Ltd | Construction | 2023 |
| Pdfuzzu Pro Ltd | Information & communication | 2026 |
| Peal Facilities Management Ltd | Real estate | 1994 |
| Pearl PR Limited | Professional & scientific | 2015 |
| Pearl United Ltd | Other services | 2024 |
| Peckham Vintage Ltd | Wholesale & retail | 2021 |
| Pegasus P-Way Services Limited | Construction | 2008 |
| Penhill Property Investments Ltd | Real estate | 2024 |
| Pepper Records Ltd | Information & communication | 2020 |
| Perfect Path LLP | | 2026 |
| Perfect Smile Spa Ltd | Health & social care | 2004 |
| Perry House and White Gates Residents Limited | Households | 1985 |
| Personal Computer Systems Limited | Real estate | 1995 |
| Perspectives 4 Business Limited | Administrative & support | 2004 |
| Peter Williams Legal Services Limited | Administrative & support | 2022 |
| Petersen Consulting Limited | Professional & scientific | 2013 |
| Petmax Limited | Information & communication | 1998 |
| PH Asset Ltd | Real estate | 2023 |
| Phaeton Enterprises Limited | Information & communication | 2002 |
| Pharen Building Services Limited | Construction | 2022 |
| Pharmapro Healthcare Ltd | Wholesale & retail | 2020 |
| PHC Services Ltd | Construction | 2017 |
| PHI Sirius Ltd | Professional & scientific | 2013 |
| PHI VO Limited | Health & social care | 2015 |
| Philippa-Jane Hill Limited | Administrative & support | 2013 |
| Phoenix H&B SW16 Ltd | Other services | 2026 |
| Photography by Olive Tree Limited | Professional & scientific | 2019 |
| Pickering Mortgage Services Limited | Financial services | 1999 |
| PIE & Pint Limited | Hospitality | 2017 |
| Pierce & Pierce Mergers and Acquisitions Ltd | Real estate | 2022 |
| Pinakin Radiology Solutions Limited | Health & social care | 2022 |
| Pine Crest (Chislehurst) Residents Association Limited | Households | 1967 |
| Pinnacle Square (Bexleyheath) Management Company Limited | Real estate | 2013 |
| Pipebed Ltd | Manufacturing | 2026 |
| Pizza Etcetra Limited | Hospitality | 1985 |
| Pizzologist Ltd | Hospitality | 2026 |
| PJ Services Group Limited | Other services | 2019 |
| Plan and Survey Limited | Professional & scientific | 2002 |
| Planbuild Limited | Professional & scientific | 1980 |
| Platinum AV Ltd | Administrative & support | 2003 |
| Platinum One Plumbing Ltd | Construction | 2025 |
| Play Pavillion Preschool Limited | Education | 2023 |
| Plumbforce Services Ltd | Construction | 2023 |
| Plumstead HS Ltd | Wholesale & retail | 2023 |
| Plumstead Pharma Ltd | Wholesale & retail | 2017 |
| Plutus Financial Planning Limited | Financial services | 2019 |
| PM Medical Secretarial Services Ltd | Administrative & support | 2017 |
| PMC (Kent) Limited | Professional & scientific | 2012 |
| PMC Amherst Limited | Professional & scientific | 2026 |
| PMC Partnership Limited | Professional & scientific | 2021 |
| Polar Audio Limited | Wholesale & retail | 1969 |
| Pomfrey & Company Accountants Limited | Professional & scientific | 1999 |
| Pomfrey Creed Accountancy Ltd | Professional & scientific | 1999 |
| Pomfrey Creed Accountants Ltd | Professional & scientific | 2001 |
| Pomfrey Ltd | Professional & scientific | 2015 |
| Poolsan (UK) Limited | Wholesale & retail | 2006 |
| Poolsan Direct Limited | Wholesale & retail | 2007 |
| Poppy Shafto Limited | Administrative & support | 2014 |
| Portal Coaching Limited | Other services | 2019 |
| Positive Energy GAS & Heating Solutions Ltd | Construction | 2011 |
| Powers Consultancy Ltd | Professional & scientific | 2016 |
| Pragini Limited | Other services | 1994 |
| Precipice Theatre Ltd. | Arts & recreation | 2023 |
| Precision Contractors Limited | Construction | 2007 |
| Precision Inspection Consultancy Services Ltd | Other services | 2020 |
| Premier Brickwork (SE) Limited | Construction | 2004 |
| Premier GAS Solutions Ltd | Construction | 2023 |
| Premier Solutions (South East) Ltd | Construction | 2022 |
| Preston Estate Group Limited | Real estate | 2023 |
| Prideaux Swain Limited | Professional & scientific | 2007 |
| Prima Asset Investment Ltd | Administrative & support | 2016 |
| Prima Consultancy Limited | Professional & scientific | 2022 |
| Prime 8 Accounting Ltd | Professional & scientific | 2026 |
| Prime M.E.L. Ltd | Hospitality | 2026 |
| Prime Peak Holdings Ltd | Real estate | 2025 |
| Prime Performance Football Ltd | Arts & recreation | 2025 |
| Prime Time Property Solutions Ltd | Other services | 2025 |
| Priya Fashions Limited | Wholesale & retail | 2008 |
| Pro Air Services UK Ltd | Energy | 2021 |
| Pro Build Tech Ltd | Construction | 2019 |
| Pro Homes Ltd | Real estate | 2013 |
| Pro Management Ltd | Real estate | 2002 |
| Professional Association of Networking CIC | Other services | 2024 |
| Progetto Building & Project Consultancy Limited | Professional & scientific | 2024 |
| Proglobal Import and Export Limited | Professional & scientific | 2025 |
| Prohaul SE Ltd | Transport & logistics | 2025 |
| Project Management Services (Kent) Ltd | Professional & scientific | 2014 |
| Property Go Ltd | Households | 2023 |
| Proplawyer Ltd | Administrative & support | 2020 |
| Proquantum Ltd | Construction | 2024 |
| Prosafe Enterprises(U.K) Ltd | Wholesale & retail | 2009 |
| Protrade Design & Build Ltd | Construction | 2019 |
| Prowse Probate Limited | Administrative & support | 2023 |
| Psychro Fire and Security Protection Limited | Public administration | 2019 |
| Puddle Ducks Childminding Ltd | Health & social care | 2024 |
| Purde Capital Ltd | Real estate | 2025 |
| Purple Dafodil Limited | Real estate | 2026 |
| Purplehaze Enterprises Limited | Professional & scientific | 2016 |
| PWJ Property Ltd | Real estate | 2022 |
| Q Dumpling Bar Limited | Hospitality | 2016 |