| Park Lane Homes Limited | Construction | 1990 |
| Park Lane Housing Association | Hospitality | 2018 |
| Park Lane Leeds Limited | Professional & scientific | 2004 |
| Park Lane Luxury Travel Company Limited | Administrative & support | 2023 |
| Park Lane Place (NR) Limited | Real estate | 2024 |
| Park Lane Place Property Limited | Real estate | 2022 |
| Park Lane Properties (Developments) Limited | Construction | 2013 |
| Park Lane Properties (Holdings) Limited | Administrative & support | 2001 |
| Park Lane Properties (Leeds) Limited | Real estate | 1995 |
| Park Mill Court Management Company Limited | Households | 2020 |
| Park Place Corporate Finance Limited | Financial services | 2014 |
| Park Place Property Management Limited | Real estate | 2021 |
| Park Place Therapy Rooms Limited | Real estate | 2022 |
| Park Props Ltd | Other services | 2019 |
| Park Refreshments Limited | Hospitality | 2019 |
| Park ROW Capital Limited | Financial services | 2022 |
| Park ROW Investments Limited | Financial services | 2021 |
| Park ROW Properties Limited | Real estate | 1974 |
| Park Side Shop Ltd | Wholesale & retail | 2026 |
| Park SQ Holdings Ltd | Real estate | 2022 |
| Park Square Consulting Ltd | Professional & scientific | 2013 |
| Park Square Experts Limited | Professional & scientific | 2010 |
| Park Stairlifts Limited | Professional & scientific | 2011 |
| Park Steel Structures Limited | Construction | 2012 |
| Park Street Management (Taunton) Limited | Households | 2019 |
| Park View Court (Leeds) Limited | Households | 1995 |
| Park View Holdings (Leeds) Ltd | Real estate | 2022 |
| Park View Project Management Limited | Construction | 2021 |
| Park Villa Court (Maintenance)Limited | Households | 1969 |
| Park Villas Management Company Limited | Households | 1982 |
| Park&Dixon Limited | Households | 2025 |
| Parkcroft Management Ltd | Information & communication | 2022 |
| Parkeel Marketing Limited | Professional & scientific | 2016 |
| Parkel Properties Limited | Real estate | 2022 |
| Parker & Moses Ltd | Wholesale & retail | 2017 |
| Parker Capital Private Equity Limited | Financial services | 2018 |
| Parker Engineering Ltd | Professional & scientific | 2026 |
| Parker Insulation Ltd | Administrative & support | 2021 |
| Parker KAY Properties Ltd | Real estate | 2025 |
| Parker Lettings Ltd | Real estate | 2016 |
| Parker Management Services Limited | Professional & scientific | 2019 |
| Parker Naami Properties Ltd | Real estate | 2023 |
| Parker Prestige Developments Ltd | Administrative & support | 2017 |
| Parker Sovereign Group Limited | Construction | 2020 |
| Parker Young Recruitment Limited | Administrative & support | 2016 |
| Parkes Electrical Services Ltd | Construction | 2014 |
| Parkfield Property Solutions Ltd | Real estate | 2015 |
| Parkgate Estate Holdings Limited | Financial services | 2025 |
| Parkgrove Projects Ltd | Construction | 2025 |
| Parkhurst Grounds Limited | Households | 1960 |
| Parkin Projects Limited | Real estate | 2024 |
| Parkinch Properties Ltd | Real estate | 2021 |
| Parking Control Solutions Limited | Administrative & support | 2013 |
| Parking International Holdings Limited | Professional & scientific | 2005 |
| Parkland Terrace Maintenance Company Ltd | Real estate | 2010 |
| Parklands (Wakefield) Management Limited | Households | 2003 |
| Parklane Traders Investments Limited | Real estate | 2024 |
| Parklane Traders Limited | Wholesale & retail | 2021 |
| Parkour Properties (Yorkshire) Limited | Construction | 2019 |
| Parkour Properties Limited | Financial services | 2019 |
| Parkridge Holdings Limited | Professional & scientific | 2007 |
| Parks to Peaks Ltd | Education | 2026 |
| Parkside Garage (Leeds) Ltd | Wholesale & retail | 2010 |
| Parkside House (Bramley) Management Company Limited | Households | 2008 |
| Parkside Project Services Ltd | Information & communication | 2017 |
| Parkside Residential Homes Ltd | Hospitality | 1996 |
| Parkside Tavern Limited | Hospitality | 2015 |
| Parkstone & Pennine Advisory Group Ltd | Professional & scientific | 2026 |
| Parkstone (Yorkshire) Limited | Construction | 2016 |
| Parkstone Broking Ltd | Financial services | 2025 |
| Parktco Limited | Real estate | 2025 |
| Parkway Financial Planning Ltd | Financial services | 2011 |
| Parkway House Management Ltd | Households | 2022 |
| Parkway Propco Limited | Financial services | 2025 |
| Parkway Studios Limited | Hospitality | 2026 |
| Parkwood Mews Management (Roundhay) Limited | Households | 2006 |
| Parland (Yorkshire) Ltd | Real estate | 2023 |
| Parlay Property Maintenance Ltd | Construction | 2025 |
| Parlington Lane Properties Limited | Real estate | 2022 |
| Parmar Brickwork Ltd | Construction | 2021 |
| Parmar IT Limited | Information & communication | 2011 |
| Parmar Portfolio Ltd | Real estate | 2018 |
| Parmis Pizza Limited | Hospitality | 2023 |
| Parrot PAY Limited | Administrative & support | 2019 |
| Parseval Solutions Limited | Information & communication | 2025 |
| Part Pilot Limited | Wholesale & retail | 2025 |
| Particeps Limited | Information & communication | 2012 |
| Particle Bay Ltd | Information & communication | 2024 |
| Partner Care Ltd | Health & social care | 2019 |
| Partner in Payroll Limited | Administrative & support | 2025 |
| Partnering in Africa Ltd | Administrative & support | 2016 |
| Partners Development Ltd | Construction | 2020 |
| Partners in Care Limited | Health & social care | 2001 |
| Partners Property Investment Ltd | Real estate | 2017 |
| Partners Real Estate Ltd | Financial services | 2020 |
| Partnership Investment Equity Fund LP | | 2004 |
| Partnership Investment Finance Interim Fund LP | | 2009 |
| Partnership Investment Mezzanine Fund LP | | 2004 |
| Partnerships Mental Health Ltd | Health & social care | 2024 |
| Parton Jones Limited | Real estate | 2024 |