| Old Barn Dental Practice Limited | Health & social care | 2006 |
| Old Cross Properties Limited | Administrative & support | 2002 |
| Omega Plant Ltd | Wholesale & retail | 2005 |
| OMNIA23 Ltd | Construction | 2023 |
| One Automotive (Warwick) Ltd | Wholesale & retail | 2022 |
| One Properties (Warwick) Ltd | Real estate | 2024 |
| One Services (Warwick) Ltd | Wholesale & retail | 2026 |
| One Touch Solution Limited | Information & communication | 2008 |
| Onecommerce Services UK Ltd | Professional & scientific | 2020 |
| Opportunity Boost CIC | Administrative & support | 2024 |
| Optima Group Services Limited | Administrative & support | 2023 |
| Optima Investments (Midlands) Ltd | Real estate | 2021 |
| Optima Offsite Ltd | Construction | 2019 |
| Optimised Learning Ltd | Education | 2014 |
| Optimizeiq Limited | Real estate | 2023 |
| Optimum Collective Limited | Professional & scientific | 2018 |
| Orange Lion Holdings Ltd | Administrative & support | 2022 |
| Orchard & Bloom Ltd | Real estate | 2017 |
| Orchid Legal Ltd | Professional & scientific | 2021 |
| Osprey Software Solutions Ltd | Information & communication | 2025 |
| Outsideros Ltd | Other services | 2024 |
| Outwoods Motors Limited | Wholesale & retail | 2013 |
| Owen D Tiling Installations Limited | Construction | 2025 |
| Oxberry Property Services Ltd | Households | 2021 |
| P & J Assets Ltd | Real estate | 2025 |
| P a Smart Electrical Services Ltd | Administrative & support | 2014 |
| P Brennan 2014 Ltd | Professional & scientific | 2014 |
| P D Rees Limited | Administrative & support | 2003 |
| P H Homes Ltd | Real estate | 2026 |
| P N Comms (UK) Ltd | Real estate | 2003 |
| P94 Property Ltd | Real estate | 2025 |
| Packetpipe Ltd | Information & communication | 2019 |
| Padraic Mcmanus Mines Escape & Rescue Consultant Limited | Professional & scientific | 2026 |
| Page Building Developments Limited | Construction | 2025 |
| Palladium Spirit Ltd | Manufacturing | 2022 |
| Pallett Services Limited | Wholesale & retail | 2016 |
| Panoptic Business Services Limited | Administrative & support | 2015 |
| Parisienne Zima Ltd | Manufacturing | 2024 |
| Parker Plastering Limited | Construction | 2007 |
| Parkes Management Consultancy Ltd | Professional & scientific | 2011 |
| Parkes Property Consultants Limited | Real estate | 2019 |
| Pasha Barber Ashby Ltd | Other services | 2025 |
| Pass Properties Limited | Construction | 1993 |
| Pathfinder Adventures CIC | Education | 2019 |
| Pathwaygolf Ltd | Administrative & support | 2025 |
| Pattinson Property Group Limited | Real estate | 2024 |
| Paul Baker Construction Ltd | Construction | 2010 |
| Paul Bates Advisory Solutions Ltd | Professional & scientific | 2025 |
| Paul Davis Assessment Ltd | Education | 2011 |
| Paul Eaton Services Ltd | Manufacturing | 2024 |
| Paul Hydes Ltd | Health & social care | 2023 |
| Paul Whittington Ltd | Information & communication | 2005 |
| Pauline Buckley Limited | Professional & scientific | 2014 |
| Paws Farming Limited | Agriculture & fishing | 2015 |
| PDR Construction Midlands Ltd | Construction | 2020 |
| Pebble Beach Holdings Limited | Real estate | 2019 |
| Pegasus Property Management (New Forest) Ltd | Real estate | 2019 |
| Penguin Learning Limited | Professional & scientific | 2011 |
| Pentegra Solutions Limited | Information & communication | 2012 |
| Pentire Aviation Limited | Transport & logistics | 2023 |
| Personal Eyez Swadlincote Limited | Health & social care | 2014 |
| Petite Media Limited | Arts & recreation | 2026 |
| Petros Consulting Solutions Limited | Professional & scientific | 2013 |
| Pharmaram Limited | Administrative & support | 2008 |
| Phil Sterne Consulting Limited | Professional & scientific | 2020 |
| Philip Hannigan Joinery & Building Services Ltd | Construction | 2002 |
| Philipmcdonnell Consultancy Limited | Professional & scientific | 2024 |
| PHJ Consulting Ltd | Information & communication | 2009 |
| Phoebus Insight Retail Limited | Professional & scientific | 2024 |
| Phoenix Heroes CIC | Hospitality | 2018 |
| Physioneeds Equestrian Limited | Health & social care | 2020 |
| Pibbi Limited | Other services | 2019 |
| Pink Riders Motorcycle Clothing Ltd | Wholesale & retail | 2024 |
| Pink Stag Property Management Ltd | Administrative & support | 2024 |
| Piped UP Ltd | Construction | 2016 |
| Pippa Curnick Illustration & Design Ltd | Information & communication | 2016 |
| PJ LPG Engineering Ltd | Professional & scientific | 2017 |
| PJC Associates Limited | Professional & scientific | 2026 |
| PKV Medical Ltd | Education | 2016 |
| Plan Urban Design Ltd | Professional & scientific | 2026 |
| Plastribution Limited | Wholesale & retail | 1979 |
| Platen Boring Limited | Manufacturing | 2003 |
| Platts Wealth Management Ltd | Financial services | 2024 |
| Plinths London Group Ltd | Wholesale & retail | 2024 |
| Plot Restaurants Limited | Hospitality | 2015 |
| Plumb and Cool Ltd | Construction | 2023 |
| Plus Malin Training Limited | Health & social care | 2019 |
| Pm-Mastery Ltd | Information & communication | 2019 |
| PMA Lift Services Limited | Manufacturing | 2023 |
| Polly Transport Ltd | Transport & logistics | 2022 |
| Portfolio PH Ltd | Professional & scientific | 2026 |
| Positive Space Environments Ltd | Construction | 2019 |
| Potis Ltd | Professional & scientific | 2024 |
| Power Torque Tuning Limited | Professional & scientific | 2007 |
| Powerhouse Global Corporation Ltd | Wholesale & retail | 2025 |
| Preciousbluedot Ltd | Information & communication | 2010 |
| Preisler Construction Ltd. | Construction | 2005 |
| Premier Complete Ltd | Construction | 2021 |
| Premier Mobility (Burton) Limited | Wholesale & retail | 2008 |
| Premtech Ltd | Professional & scientific | 2010 |