| Pryor`S Garden Management Company Limited | Real estate | 2006 |
| Przemyslaw Piotrowski Ltd | Transport & logistics | 2019 |
| PS Construction Limited | Construction | 2007 |
| PS19 Housing Ltd | Real estate | 2024 |
| PSA Electrical Services Ltd | Construction | 2013 |
| PSB Smart Solutions Ltd | Wholesale & retail | 2022 |
| Pseudechis Limited | Other services | 2022 |
| PSF Accounting Cambridge Limited | Professional & scientific | 2000 |
| PSG Accountancy Limited | Professional & scientific | 2018 |
| PSG Catering | | 1999 |
| PSH Acquisitions Ltd | Households | 2023 |
| PSW Events Ltd | Arts & recreation | 2010 |
| Psyched Solutions Ltd | Health & social care | 2017 |
| Psychologic Limited | Information & communication | 2000 |
| Psychological Matters Limited | Health & social care | 2025 |
| Psychologist in Cambridge Limited | Health & social care | 2023 |
| Psynova Neurotech Limited | Professional & scientific | 2005 |
| Psyomics Ltd | Professional & scientific | 2015 |
| Ptahhealth Ltd | Information & communication | 2020 |
| Ptb-Motors Ltd | Manufacturing | 2026 |
| Pterion Ltd | Information & communication | 2023 |
| PTH Limited | Real estate | 2019 |
| Ptjli Services Ltd | Real estate | 2021 |
| PTM Consultancy Limited | Health & social care | 2020 |
| PTS Tutoring and Education Consultancy Limited | Wholesale & retail | 2021 |
| PTX Engineering Ltd | Manufacturing | 2018 |
| PU Prime Ltd | Financial services | 2025 |
| Public Value Partners Ltd | Professional & scientific | 2025 |
| Pudans Integrated Services Limited | Health & social care | 2015 |
| Puddini Limited | Hospitality | 2015 |
| Puffin Property (Cambridge) Ltd | Real estate | 2021 |
| Puffin Rigging Ltd | Construction | 2026 |
| Pull LET Ltd | Real estate | 2022 |
| Pulmon Imaging Limited | Health & social care | 2022 |
| Pulsar Clothing Limited | Wholesale & retail | 2024 |
| Pulsemed Ltd | Health & social care | 2019 |
| Pulsiv Limited | Professional & scientific | 2013 |
| Pulsiv Solar Limited | Professional & scientific | 2021 |
| Punchyou Ltd | Manufacturing | 2025 |
| Punt Ltd | Arts & recreation | 2024 |
| Punter of England Ltd | Wholesale & retail | 2008 |
| Pupik Ltd | Manufacturing | 2024 |
| Puram Ltd | Real estate | 2021 |
| Puran Construction Ltd | Wholesale & retail | 2015 |
| Puran Investment Ltd | Real estate | 2015 |
| Purcell Place (Block C) District Centre Management Company Limited | Households | 2015 |
| Pure Alarms Limited | Construction | 2015 |
| Pure Bathrooms Cambridge Limited | Construction | 1997 |
| Pure Beauty Cambridge Ltd | Other services | 2023 |
| Pure Communications (Cambridge) Limited | Professional & scientific | 2017 |
| Pure Developments (Cambridge) Limited | Construction | 2011 |
| Pure Doors Limited | Construction | 2016 |
| Pure Education Consultancy Limited | Education | 2017 |
| Pure Electrical (Cambridge) Limited | Construction | 2012 |
| Pure Health Strategy Limited | Professional & scientific | 2022 |
| Pure Healthcare Strategy Limited | Professional & scientific | 2022 |
| Pure Heating and Plumbing Limited | Construction | 2009 |
| Pure Holdings Group Co Ltd | Administrative & support | 2021 |
| Pure Musicals Ltd | Information & communication | 2020 |
| Pure Nest Farms Ltd | Financial services | 2025 |
| Pure Pearls Co., Ltd | Wholesale & retail | 2020 |
| Pure Planning Ltd | Professional & scientific | 2004 |
| Pure Predictions Limited | Information & communication | 2008 |
| Pure Residential Cambridge Ltd | Real estate | 2022 |
| Pure Residential Investments Ltd | Real estate | 2024 |
| Pure Resourcing Solutions Group Ltd | Administrative & support | 2025 |
| Pure Resourcing Solutions Ltd | Administrative & support | 2002 |
| Pure Service Cambridge Limited | Construction | 2020 |
| Pure Source British Isles Ltd | Wholesale & retail | 2018 |
| Pure Stay Cleaning Ltd | Transport & logistics | 2026 |
| Pure Vintage Limited | Wholesale & retail | 2018 |
| Purebliss Integrated Services Limited | Professional & scientific | 2024 |
| Puremugs Ltd | Manufacturing | 2025 |
| Purifire Energy Limited | Manufacturing | 2019 |
| Purl Alpaca Designs Limited | Manufacturing | 2008 |
| Purnell Composites Ltd | Manufacturing | 2014 |
| Purple AI Labs Ltd | Information & communication | 2024 |
| Purple Flowers Gardens and Mosaics Ltd | Administrative & support | 2019 |
| Purple Golem Crafts Ltd | Manufacturing | 2025 |
| Purple Hedge Ltd | Information & communication | 2020 |
| Purple MO Ltd | Wholesale & retail | 2023 |
| Purple Starry Sky Ltd | Wholesale & retail | 2026 |
| Purple Yonder Ltd | Information & communication | 2020 |
| Purpleheart Limited | Wholesale & retail | 2026 |
| Purrmetrix Limited | Information & communication | 2014 |
| Pursglove Histopathology Reporting Service Limited | Professional & scientific | 2025 |
| Purvis Property Capital Ltd | Real estate | 2025 |
| Pusula Yacht Registration Ltd | Wholesale & retail | 2021 |
| Putraganesha International Co Limited | Wholesale & retail | 2025 |
| Puzzle Management Ltd | Professional & scientific | 2012 |
| PV (Tayfen Road) Limited | Professional & scientific | 2013 |
| PV Wellness Ltd | Arts & recreation | 2025 |
| PVI One Services Ltd | Wholesale & retail | 2025 |
| PW Accountants Limited | Professional & scientific | 2004 |
| Pw-Dciv Limited | Real estate | 2026 |
| Pw-Dxvii Ltd | Real estate | 2025 |
| Pwadetraining Limited | Education | 2013 |
| PXL Creative Limited | Information & communication | 2014 |
| Pxog Massey Limited | Administrative & support | 2017 |
| PY Live in Care Ltd | Health & social care | 2025 |