| Park Lane Coiffeur Limited | Construction | 1960 |
| Park Lane Valuers Limited | Wholesale & retail | 2024 |
| Park LEA Developments Limited | Real estate | 2016 |
| Park Lodge (L8) RTM Company Limited | Households | 2020 |
| Park Motor Services Limited | Wholesale & retail | 2009 |
| Park Palace of Varieties | Arts & recreation | 2008 |
| Park Plumbing Services Limited | Construction | 2010 |
| Park Preservation Ltd. | Real estate | 1996 |
| Park RD Newsagent Ltd | Wholesale & retail | 2023 |
| Park Road Cleaning Cars Ltd | Administrative & support | 2026 |
| Park Road Convenience Store Ltd | Wholesale & retail | 2023 |
| Park Road Fish HUT Takeaway Ltd | Hospitality | 2021 |
| Park Road Flooring Ltd | Construction | 2025 |
| Park Road Phones Limited | Wholesale & retail | 2021 |
| Park Village Store Ltd | Wholesale & retail | 2024 |
| Parkcity Contracting Ltd | Construction | 2009 |
| Parkdean Properties (Liverpool) Limited | Real estate | 1970 |
| Parker Aesthetics Limited | Health & social care | 2017 |
| Parker Consulting (N/W) Limited | Construction | 2024 |
| Parker Electrical (NW) Ltd | Construction | 2018 |
| Parker Jackson Bowen Limited | Professional & scientific | 2023 |
| Parker Kelly Financial Services Limited | Financial services | 2012 |
| Parker Street RTM Company Limited | Households | 2024 |
| Parkers Paradigm Ltd | Wholesale & retail | 2024 |
| Parkfield Building Solutions Limited | Administrative & support | 2014 |
| Parkfield Manor Management Company Limited | Households | 2004 |
| Parkfield Painting Contractors Limited | Construction | 2005 |
| Parkfield Properties (North West) Limited | Construction | 2002 |
| Parkfield Properties Ltd | Real estate | 2025 |
| Parkgate Chippy Limited | Hospitality | 2018 |
| Parkhaven Trust | Health & social care | 1940 |
| Parkhouse Ltd | Information & communication | 2021 |
| Parkin S Booth Ltd | Professional & scientific | 2019 |
| Parking Associates Limited | Professional & scientific | 2002 |
| Parking Matters Limited | Administrative & support | 2007 |
| Parkinson Inc. Limited | Professional & scientific | 2010 |
| Parkinson VTC Ltd | Professional & scientific | 2014 |
| Parklands (Croxteth) Management Company Limited | Agriculture & fishing | 1978 |
| Parklands (Kirkby) Management Company Limited | Households | 2006 |
| Parklands Plumbing and Heating Ltd | Construction | 2025 |
| Parklands Residents Liverpool Limited | Real estate | 2000 |
| Parkminster Shipping Limited | Professional & scientific | 2019 |
| Parkpath Properties Ltd | Real estate | 2006 |
| Parks & Parks Limited | Other services | 2019 |
| Parks Options Limited | Professional & scientific | 1999 |
| Parks Options Trading Limited | Professional & scientific | 2004 |
| Parkside Autos & Service Ltd | Wholesale & retail | 2026 |
| Parkside Dog Retreat Ltd | Agriculture & fishing | 2024 |
| Parkside Gardening Services Ltd | Administrative & support | 2008 |
| Parkside Hospitality Limited | Hospitality | 2025 |
| Parkside Mansions Owners Limited | Households | 2013 |
| Parkside Properties (Liverpool) Limited | Households | 2007 |
| Parkview Club Ltd | Hospitality | 2024 |
| Parkview Gardens (Liverpool) Limited | Extraterritorial | 2022 |
| Parkway Developments Dorset Ltd | Construction | 2022 |
| Parkway Nutrition Limited | Wholesale & retail | 2023 |
| Parkway Operations Dorset Ltd | Financial services | 2023 |
| PARKWAY02 Ltd | Administrative & support | 2017 |
| Parle Consultancy Services Limited | Professional & scientific | 2020 |
| Parle Family Holding Ltd | Manufacturing | 2026 |
| Parleyblu Ltd | Education | 2025 |
| Parliament Street Productions Limited | Information & communication | 2024 |
| Parlies Projects Limited | Administrative & support | 2024 |
| Parlour Gaming Limited | Wholesale & retail | 2025 |
| Parlour Magic Ltd | Hospitality | 2025 |
| Parnell Sports Insights Limited | Professional & scientific | 2022 |
| Parnell's Sports Bar (Liverpool) Ltd | Hospitality | 2025 |
| Parnells Cafe Bar Ltd | Wholesale & retail | 2011 |
| Parnells Property Investment Limited | Real estate | 2013 |
| Parr Property Limited | Real estate | 2023 |
| Parr Rochdale Limited | Wholesale & retail | 1948 |
| Parr ST Pizza & Kitchen Ltd | Hospitality | 2026 |
| Parr Street Garage Limited | Wholesale & retail | 1996 |
| Parr Street Grill Ltd | Hospitality | 2026 |
| Parr Street Liverpool Limited | Wholesale & retail | 2013 |
| Parr Street Studios Management Limited | Other services | 2022 |
| Parrjazz Ltd | Arts & recreation | 2018 |
| Parry & Partners Limited | Real estate | 2017 |
| Parry Childcare Ltd | Education | 2025 |
| Parry Property Rentals Ltd | Real estate | 2022 |
| Parsons Auto Lease Ltd | Administrative & support | 2025 |
| Part Time Baker Ltd | Wholesale & retail | 2025 |
| Parteen Limited | Transport & logistics | 1981 |
| Parti Development One Limited | Professional & scientific | 2018 |
| Partition Build Ltd | Construction | 2026 |
| Partition Studio Limited | Professional & scientific | 2023 |
| Partlink UK Ltd | Wholesale & retail | 2025 |
| Partman Properties Limited | Real estate | 2021 |
| Partnering for Purpose CIC | Professional & scientific | 2024 |
| Partners in Training (North West) Limited | Education | 2011 |
| Parts & Motors Ltd | Wholesale & retail | 2026 |
| Parts Plus Panels Limited | Wholesale & retail | 2005 |
| Parttech CC Ltd | Wholesale & retail | 2015 |
| Party Booze Ltd | Administrative & support | 2017 |
| Party Cave Ltd | Arts & recreation | 2021 |
| Party Central Wildlife Experience Ltd | Other services | 2020 |
| Party Kings Ltd. | Arts & recreation | 2011 |
| Party Puffs Liverpool Ltd | Hospitality | 2023 |
| Parys Mountain Construction Limited | Construction | 2019 |
| Paré DE Bijoux Ltd | Manufacturing | 2021 |