| Pharmaceutical Licensing Group Limited | Other services | 2002 |
| PHF Investments Limited | Real estate | 2008 |
| Philip Lockett Consulting Limited | Professional & scientific | 2016 |
| Philip Scott Planning Ltd | Professional & scientific | 2023 |
| Phoenix CCS Ltd | Manufacturing | 2025 |
| Phoenix House Residents Company Limited | Households | 1997 |
| Piers Baker Limited | Professional & scientific | 2002 |
| Pieve Solutions Limited | Professional & scientific | 2005 |
| Pilgrim Brewery (Reigate) Limited | Manufacturing | 2017 |
| Pilgrim Taprooms (Reigate) Limited | Hospitality | 2019 |
| Pilgrims Estates Ltd | Real estate | 2019 |
| Pilgrims Place Residents Association (Reigate) Limited | Households | 1990 |
| Pimpernel Wharf Holdings Limited | Financial services | 2015 |
| Pimpernel Wharf Limited | Wholesale & retail | 2005 |
| Pineapple House Limited | Real estate | 2010 |
| Pinehurst Construction Group Limited | Construction | 2021 |
| Pinewood Autos Limited | Wholesale & retail | 2009 |
| Ping an Solutions Ltd | Construction | 2023 |
| Pink Cabin Films Limited | Information & communication | 2013 |
| Pinna Scaffolding Ltd | Construction | 2020 |
| Pinnacle Builders Limited | Construction | 2010 |
| PIO Consultancy Limited | Professional & scientific | 2026 |
| Pipetek Services Ltd | Construction | 2003 |
| Pip’S Fit Club Limited | Arts & recreation | 2017 |
| Pizza Decadence Ltd | Hospitality | 2020 |
| Pizzacraft Limited | Other services | 2017 |
| PJS Design and Management Ltd | Construction | 2019 |
| Placl RE 1 Limited | Professional & scientific | 2015 |
| Placl RE 2 Limited | Professional & scientific | 2017 |
| Plan Works Ltd | Financial services | 2013 |
| Plancraft Holdings Limited | Administrative & support | 1996 |
| Plancraft Marine Limited | Construction | 1989 |
| Pland Building Services Limited | Construction | 2020 |
| Platinum Residential Developments Limited | Construction | 2004 |
| Platinum Transferz Ltd | Transport & logistics | 2025 |
| Playbook Collective Limited | Professional & scientific | 2025 |
| Playfair Developments Limited | Construction | 2026 |
| Playzone Limited | Arts & recreation | 2013 |
| Pleiades Strategies Limited | Professional & scientific | 2024 |
| PLG Signs Limited | Professional & scientific | 1999 |
| PLP Investment (Properties) Ltd | Real estate | 2022 |
| Plum Pudding Limited | Information & communication | 2006 |
| Plumbwell Limited | Wholesale & retail | 1987 |
| Plus Control Limited | Information & communication | 2019 |
| Plus Ride Airport Transfers Ltd | Transport & logistics | 2021 |
| Pluto Property Investments Limited | Real estate | 2020 |
| Pluto Wealth Ltd | Other services | 2012 |
| PMH (Rentals) Limited | Real estate | 2021 |
| Point Two Airbag Jackets Limited | Wholesale & retail | 2009 |
| POINT-2 Equine Limited | Manufacturing | 2008 |
| Poppylane Limited | Households | 1990 |
| Porterhouse Properties Limited | Real estate | 1996 |
| Portfolio Managing Partners LP | | 2010 |
| Portland House Mews (Epsom) Management Limited | Households | 2004 |
| Pound Farm Investments Limited | Real estate | 2002 |
| PPD (UK) Ltd | Administrative & support | 2004 |
| Practical Training Solutions Ltd | Education | 2022 |
| Praelium Limited | Other services | 2021 |
| Praetorian Properties Ltd | Construction | 2008 |
| Prater Limited | Construction | 1987 |
| PRE-1940 Triumph Motor Club Limited | Information & communication | 2010 |
| Pre-Vin Diagnostics Ltd | Health & social care | 2026 |
| Prebur Airtech UK Ltd | Wholesale & retail | 2026 |
| Precise Health Ltd | Wholesale & retail | 2021 |
| Preedy Psychology Limited | Health & social care | 2019 |
| Premier House RTM Company Limited | Real estate | 2026 |
| Premserv Limited | Construction | 2022 |
| Presentation Solutions Limited | Other services | 2005 |
| Presidente 2 Limited | Real estate | 2000 |
| Pressure Clean Limited | Wholesale & retail | 1970 |
| Prestige Catering Ltd | Hospitality | 2024 |
| Prestigue Consultancy Limited | Professional & scientific | 2007 |
| Preston Refurbishments Limited | Construction | 2003 |
| Pretty Fans Limited | Professional & scientific | 2009 |
| Price Hudson Limited | Financial services | 2026 |
| Priestfield Consulting Ltd | Professional & scientific | 2014 |
| Prime Hotels Limited | Hospitality | 2012 |
| Priory Conservatories | | 1991 |
| Priory Gate Developments Limited | Construction | 2004 |
| Priory Park Properties Limited | Real estate | 2012 |
| Priory Racing Stables Management Company Limited | Households | 1997 |
| Priory Recruitment Ltd | Administrative & support | 2025 |
| Prisacaru Services Ltd | Information & communication | 2018 |
| Privilege Vision Limited | Health & social care | 2022 |
| Programme Execute Limited | Professional & scientific | 2007 |
| Proink Inkjet Coding Solutions Ltd | Wholesale & retail | 2025 |
| Project Focus HQ Ltd | Information & communication | 2025 |
| Project Lewes Ltd | Information & communication | 2023 |
| Projekt 3 Limited | Professional & scientific | 2020 |
| Proof Puzzle Ltd | Information & communication | 2025 |
| Proper Good Media Ltd | Information & communication | 2026 |
| Property Briefing Limited | Other services | 2000 |
| Property Matters Dorset Limited | Hospitality | 2020 |
| Property Tax Limited | Professional & scientific | 2018 |
| Prose Touring Limited | Administrative & support | 2015 |
| Prostrata Limited | Information & communication | 1997 |
| Prosys DEV Limited | Manufacturing | 2019 |
| Protective Atmosphere Music Ltd | Arts & recreation | 2005 |
| Protodale (Broyle 3) Limited | Real estate | 2004 |
| Protodale (Broyle Road) Limited | Real estate | 1998 |