| P B T Beal & Sons Limited | Agriculture & fishing | 2016 |
| P&G Solar Ltd | Energy | 2022 |
| P. L. Interim Limited | Real estate | 2005 |
| P4 Products Ltd | Manufacturing | 2020 |
| Paige & Partridge Limited | Wholesale & retail | 2021 |
| PAN Europe Limited | Hospitality | 2023 |
| Pancam 360 Limited | Administrative & support | 2020 |
| Parabolic IT Limited | Information & communication | 2009 |
| Parker Properties (East Yorkshire) LLP | | 2026 |
| Parkfibre Limited | Information & communication | 2025 |
| Pascoe's Unlimited | Manufacturing | 1979 |
| Pasture House Ltd | Hospitality | 2017 |
| Pasturegate Holdings Limited | Financial services | 2024 |
| Pathway Mediation Limited | Professional & scientific | 2020 |
| Pattie & Juice Ltd | Hospitality | 2016 |
| Paul Berriman Windows Limited | Construction | 2006 |
| Paul Harrison Car Sales Ltd | Wholesale & retail | 2018 |
| Paul Lockwood Golf Ltd | Wholesale & retail | 2023 |
| Paul Rickatson Limited | Professional & scientific | 2011 |
| Paulian Investments East Riding Limited | Hospitality | 2022 |
| Paulian Pubs East Riding Limited | Hospitality | 2026 |
| Pavis Property Development (PPD) Ltd | Construction | 2010 |
| Paws for Walks Limited | Other services | 2023 |
| PC Forestry Ltd | Wholesale & retail | 2022 |
| PD PSU Services Ltd | Construction | 2016 |
| Pearlescent Aesthetics & Beauty Limited | Other services | 2025 |
| Pearlescent Beauty Limited | Other services | 2022 |
| Penelope Payroll Limited | Professional & scientific | 2012 |
| Penguin Fire Protection Ltd | Public administration | 2024 |
| Peregreen Ltd | Professional & scientific | 2025 |
| Pereira Search Limited | Professional & scientific | 2022 |
| Perfect Pet Foods Limited | Wholesale & retail | 2020 |
| Perfect Serve Drinks Dispense Ltd | Hospitality | 2025 |
| Pet Pure Supplements Ltd | Wholesale & retail | 2020 |
| Pet Rehab Ltd | Professional & scientific | 2023 |
| Peter Dodds Roofing Maintenance Limited | Construction | 2006 |
| Peter Fisher Ltd | Health & social care | 2019 |
| PFE First AID Training Services Limited | Education | 1993 |
| Pickford Technical Consulting Limited | Professional & scientific | 2024 |
| Pierco 2 Limited | Financial services | 2024 |
| Piercy Design Limited | Professional & scientific | 2005 |
| Pins and Needles Tattoo Studio Limited | Arts & recreation | 2020 |
| Pioneer Flooring Ltd | Construction | 2023 |
| Piper Motors Limited | Wholesale & retail | 2002 |
| Pithers Telecom Ltd | Information & communication | 2003 |
| Pitwherry Limited | Agriculture & fishing | 1996 |
| PJP Cleaning Ltd | Administrative & support | 2025 |
| Planscan AI Ltd | Information & communication | 2026 |
| Plas-Tech Injection Moulding Limited | Manufacturing | 2013 |
| Plas-Tech Thermoforming Limited | Manufacturing | 1990 |
| Plastic Online Limited | Manufacturing | 2009 |
| Platinum Parks Limited | Hospitality | 2015 |
| Plowman Group Services Ltd | Construction | 2026 |
| PM Brandesburton Limited | Manufacturing | 2008 |
| PM Catfoss Limited | Manufacturing | 1955 |
| PM Links Acquisitions 2020 Limited | Financial services | 2020 |
| PM Links Finance 2020 Limited | Financial services | 2020 |
| PM Links Holdings 2020 Limited | Financial services | 2020 |
| PM Links Ventures 2020 Limited | Financial services | 2020 |
| PM Pipes 2012 Limited | Professional & scientific | 2012 |
| PMJ Services (Yorkshire) Ltd | Other services | 2022 |
| Pneumatic Engineering Limited | Construction | 2003 |
| Pocklington Carpets Limited | Wholesale & retail | 1998 |
| Pockthorpe Renewables Limited | Administrative & support | 2013 |
| Poly Plastics Limited | Professional & scientific | 1999 |
| Pony Jack Ltd | Manufacturing | 2020 |
| Popandhop Limited | Hospitality | 2026 |
| Porkwell Limited | Agriculture & fishing | 1995 |
| Portabello Ltd | Wholesale & retail | 2005 |
| Post Box Stationery Ltd | Wholesale & retail | 2020 |
| Poultrytech Ltd | Construction | 2026 |
| Power Safety Services Limited | Construction | 2024 |
| Power Sonic Limited | Construction | 2006 |
| Prego Takeaway Ltd | Hospitality | 2023 |
| Premier Modular Limited | Manufacturing | 1990 |
| Premier Transline Hire Limited | Professional & scientific | 1987 |
| Premium 1 Limited | Wholesale & retail | 2026 |
| Prestige Bars Ltd | Hospitality | 2025 |
| Prey Limited | Manufacturing | 2023 |
| Primary Response Medical Services Limited | Health & social care | 2015 |
| Primepak Foods Limited | Wholesale & retail | 2000 |
| Prior's Produce Limited | Agriculture & fishing | 1958 |
| Priority Space (Skylon) Limited | Construction | 2017 |
| Pristine Maintenance Solutions Ltd | Administrative & support | 2025 |
| Private Dynamics Limited | Other services | 2026 |
| Prize Plunder Ltd | Arts & recreation | 2023 |
| Pro DIG (Hull) Limited | Construction | 2021 |
| Pro Fabrications (Hull) Limited | Manufacturing | 2026 |
| Property Investment SIX Limited | Real estate | 2014 |
| PRS (Europe) Limited | Professional & scientific | 2004 |
| PTS (SA) Limited | Professional & scientific | 2011 |
| PUB Family Ltd | Hospitality | 2023 |
| Pumphouse Brewing Company Limited | Manufacturing | 2016 |
| Pure Planet Packaging Limited | Hospitality | 2020 |
| Pure SET Limited | Manufacturing | 2016 |
| PVW Cartech Limited | Wholesale & retail | 2015 |
| QMS (Lincs) Ltd | Other services | 2017 |
| Quay Valeting Ltd | Other services | 2026 |
| Quick Bites 42 Ltd | Hospitality | 2025 |
| R Cadwallader Electrical Ltd | Construction | 2020 |