| Ocina Running Limited | Transport & logistics | 2017 |
| Ocker Hill 1961 Limited | Extraterritorial | 2014 |
| Ocker Hill Academy Trust | Education | 2013 |
| Odobros Ltd | Transport & logistics | 2022 |
| Office Furniture Outlet Limited | Wholesale & retail | 2018 |
| Official Shopfront and Shutters Ltd | Construction | 2023 |
| Ojktools Trading Co Ltd | Wholesale & retail | 2022 |
| Okteon Limited | Information & communication | 2021 |
| Olive Afro-Caribbean Superstore Ltd | Wholesale & retail | 2021 |
| Olympia Fabrications Limited | Manufacturing | 2004 |
| Olympus Distribution Limited | Wholesale & retail | 1983 |
| OM Autos Limited | Wholesale & retail | 2026 |
| ON Northway Ltd | Transport & logistics | 2016 |
| ON Road Logistics Ltd | Transport & logistics | 2025 |
| One 10 Graphics Ltd | Professional & scientific | 2022 |
| One 2 Entertainment Ltd | Arts & recreation | 2021 |
| One Zero Two Ideal Ltd | Transport & logistics | 2020 |
| Onmore Electrical Ltd | Construction | 2016 |
| Open Gate Market Ltd | Wholesale & retail | 2026 |
| Open Reach Wholesalers Limited | Wholesale & retail | 2024 |
| Optatus Limited | Manufacturing | 2001 |
| Optima Fabrication Ltd | Manufacturing | 2024 |
| ORA 75 Ltd | Wholesale & retail | 2026 |
| Origin CNC Limited | Manufacturing | 2022 |
| Orwell Management Services Limited | Wholesale & retail | 2001 |
| Overland Pet Freight Ltd | Transport & logistics | 2020 |
| Owen ST Convenience Store Limited | Wholesale & retail | 2021 |
| Owen Street (DY) Limited | Wholesale & retail | 2026 |
| Ozidedelogistics Limited | Transport & logistics | 2026 |
| P & H Services (Tipton) Limited | Manufacturing | 2014 |
| P a Bekoe Engineering Limited | Construction | 2025 |
| P B Investment Properties Limited | Real estate | 2012 |
| P R Automation Limited | Other services | 2001 |
| P S (2009) Limited | Wholesale & retail | 2009 |
| P S (Swindon) Logistics Limited | Transport & logistics | 2024 |
| P Spillane Ltd | Construction | 2026 |
| P&H Building Works Ltd | Construction | 2026 |
| P.C.S.S-Wm Ltd | Real estate | 2021 |
| Paget & Glover Springs Limited | Manufacturing | 1979 |
| Panchali Holdings Ltd | Real estate | 2023 |
| Pani G2 Ltd | Real estate | 2024 |
| Pannu Driving School Ltd | Education | 2023 |
| Param Logistics Limited | Transport & logistics | 2025 |
| Park Gate Mews Tipton RTM Limited | Households | 2026 |
| Park Wine Tipton Ltd | Wholesale & retail | 2023 |
| Parsaa Limited | Wholesale & retail | 2021 |
| Partap Estates Ltd | Real estate | 2025 |
| Parts Plus Ltd | Wholesale & retail | 2011 |
| Passion Domiciliary Care Ltd | Health & social care | 2018 |
| PAT Tate Limited | Professional & scientific | 2019 |
| Paterson Photographic Limited | Professional & scientific | 2001 |
| Patrick Engineering Ltd | Professional & scientific | 2020 |
| Paul James Promotions Limited | Administrative & support | 2002 |
| Paulhay Ltd | Construction | 2025 |
| Paye Payment Ltd | Wholesale & retail | 2022 |
| Paytrend Ltd | Wholesale & retail | 2020 |
| PB Brothers Properties Ltd | Real estate | 2025 |
| PB Vehicle Hire Ltd | Administrative & support | 2024 |
| PB07 Doaba Transport Ltd | Transport & logistics | 2024 |
| PD UK Construction Ltd | Construction | 2019 |
| Pdrgbr Transport Limited | Administrative & support | 2022 |
| Peachy Sweets WM Ltd | Wholesale & retail | 2023 |
| Pearse Holdings Ltd | Administrative & support | 2019 |
| Pega & Pana Ltd | Real estate | 2025 |
| Penelope Collectibles Ltd | Wholesale & retail | 2024 |
| Pennington Insurance Brokers Limited | Financial services | 1967 |
| Pepperbox Properties Ltd | Real estate | 2021 |
| Perfect Cafe & Shake Ltd | Hospitality | 2019 |
| Perfect Desserts Ltd | Wholesale & retail | 2023 |
| Perfect Heating Ltd | Construction | 2024 |
| Perfect Investments Limited | Construction | 1998 |
| Perfect Touch Aesthetics UK Ltd | Other services | 2021 |
| Perfection Academy Ltd | Education | 2024 |
| Perkson Limited | Manufacturing | 1940 |
| Peytons Place Property Group Ltd | Real estate | 2022 |
| PG Road Transport Ltd | Transport & logistics | 2015 |
| Pharmaunison Limited | Wholesale & retail | 2006 |
| Phenom Property Investment & Rental Ltd | Financial services | 2019 |
| Philriel Limited | Real estate | 2021 |
| Phoenix House 2021 Ltd | Real estate | 2021 |
| Phone & Vapes Boss Ltd | Manufacturing | 2023 |
| Phone and Vape Daddy Ltd | Wholesale & retail | 2024 |
| Pickles & Spices Ltd | Hospitality | 2016 |
| Pickles Restaurant and Takeaway Ltd | Hospitality | 2023 |
| Pillarstone Solutions Ltd | Administrative & support | 2025 |
| Pinnacle Electrical Consultancy Ltd | Construction | 2018 |
| Pizza Star Ltd | Hospitality | 2023 |
| Pizza Tipton Ltd | Hospitality | 2025 |
| Plan Z Distributions Limited | Wholesale & retail | 2001 |
| Plan Z Limited | Real estate | 2004 |
| Plant and Machinery Installation Limited | Wholesale & retail | 1988 |
| Plant Technology Services Limited | Construction | 2022 |
| Platinum Investments 83 Limited | Wholesale & retail | 2020 |
| Platinum Support Solutions Ltd | Health & social care | 2023 |
| Playgreen Logistics Limited | Transport & logistics | 2018 |
| Polyjoint Foam Products Limited | Manufacturing | 2026 |
| Polyjoint Ltd | Manufacturing | 2018 |
| Poonia Family Ltd | Real estate | 2023 |
| Poppal Limited | Wholesale & retail | 2025 |
| Port N ALE Ltd | Hospitality | 2020 |