| Oswestry Goldsmiths Ltd | Wholesale & retail | 2011 |
| Oswestry Golf Club Limited | Arts & recreation | 2020 |
| Oswestry Herbarium Limited | Wholesale & retail | 2018 |
| Oswestry Jiu-Jitsu Academy Ltd | Arts & recreation | 2022 |
| Oswestry Kitchens and Bathrooms Limited | Construction | 2020 |
| Oswestry Launderette Limited | Other services | 2023 |
| Oswestry Lettings Limited | Households | 2025 |
| Oswestry Limited | Real estate | 2020 |
| Oswestry Livestock Auctions Limited | Agriculture & fishing | 2012 |
| Oswestry Muslim Centre | Administrative & support | 2012 |
| Oswestry Roofing Ltd | Construction | 2023 |
| Oswestry School | Education | 2000 |
| Oswestry School International Limited | Administrative & support | 2024 |
| Oswestry SEN Parents CIC | Health & social care | 2025 |
| Oswestry Software Ltd | Information & communication | 2020 |
| Oswestry Station Building Trust Limited | Administrative & support | 2006 |
| Oswestry Tennis Club Limited | Arts & recreation | 2009 |
| Oswestry Town Museum Limited | Arts & recreation | 2011 |
| Oswestry Windows and Doors Ltd | Construction | 2013 |
| Oswyn House Property Co.Limited | Real estate | 1959 |
| OVC Limited | Wholesale & retail | 2015 |
| OWD Group Limited | Construction | 2016 |
| OWD Home Improvements Ltd | Construction | 2015 |
| OWD Trade Supplies Ltd | Construction | 2015 |
| Owens Fuels Limited | Wholesale & retail | 2002 |
| OWL Manager Limited | Information & communication | 2017 |
| P & D Oswestry Limited | Transport & logistics | 2011 |
| P & S Electrical Contractors Limited | Construction | 2005 |
| P Desserts Ltd | Wholesale & retail | 2025 |
| P Developments Ltd | Real estate | 2025 |
| P Dunn Pipework Limited | Manufacturing | 2007 |
| P Gibson Construction Limited | Construction | 2015 |
| P T P Dovaston Limited | Professional & scientific | 1997 |
| P. & B. Tyres (Oswestry) Ltd | Extraterritorial | 2004 |
| P. J. Scaffolding Limited | Construction | 1997 |
| P.F.B.G. Limited | Agriculture & fishing | 2001 |
| P.R. Birch & Co Ltd | Construction | 1996 |
| Paintup Ltd | Manufacturing | 2022 |
| PAL Concept Centre Limited | Administrative & support | 2012 |
| PAL Hire Limited | Administrative & support | 2006 |
| PAL Media Limited | Information & communication | 2012 |
| Pale Wood Holdings Limited | Hospitality | 2024 |
| Pandas Foundation | Health & social care | 2011 |
| Pardoe Enterprises Limited | Professional & scientific | 2019 |
| Paren Morjaria Fcca Ltd | Financial services | 2015 |
| Parish View Communal Management Company Limited | Households | 2018 |
| Park Hall Farms Enterprises Limited | Arts & recreation | 1998 |
| Park Hall Industrial Rentals Limited | Administrative & support | 2012 |
| Park House Developments (Shropshire) Ltd | Construction | 2026 |
| Parke Farm Limited | Construction | 2005 |
| Pasha Barbers Ltd | Other services | 2020 |
| Pasha Hair CUT Ltd | Other services | 2025 |
| Pathways Bookkeeping Limited | Professional & scientific | 2019 |
| Patrick James Eggle Guitars Limited | Manufacturing | 2005 |
| Paul Griffiths Inspection Services Ltd | Professional & scientific | 2015 |
| Paul James Scaffolding Limited | Administrative & support | 2001 |
| Pave-Aways Holdings Limited | Extraterritorial | 2010 |
| Pave-Aways Limited | Construction | 1973 |
| PD & RC Limited | Construction | 2013 |
| Peak Explore Ltd | Education | 2025 |
| Penton Property Services Group | Financial services | 2025 |
| Pentons Haulage & Cold Storage | Manufacturing | 1993 |
| Pentons Haulage & Cold Storage Group | Financial services | 2025 |
| Pentre Estates Ltd | Construction | 2018 |
| Pentre Morgan Management Company Ltd | Administrative & support | 2009 |
| Pentre Pant Water Company Limited | Water & waste | 2006 |
| Pentreclawdd Farm Limited | Agriculture & fishing | 2020 |
| Penylan Laundry Limited | Other services | 2023 |
| Penylan Orchard Properties Limited | Real estate | 2014 |
| People's Voice Media | Education | 1995 |
| Perclear Properties Limited | Financial services | 2016 |
| Perfect Associates Group Limited | Professional & scientific | 2022 |
| Perfect Pasties Ltd | Wholesale & retail | 2025 |
| Permit Full Expression Limited | Education | 2017 |
| Pet Technologies Consulting Limited | Professional & scientific | 2019 |
| Peter & Dean Williams Construction Limited | Construction | 2014 |
| PG Leisure Ltd | Wholesale & retail | 2011 |
| Pheb Properties Ltd | Real estate | 2022 |
| Philip Paul Limited | Wholesale & retail | 1996 |
| Phillips & Curry Limited | Construction | 2005 |
| Phone Mast People Ltd | Information & communication | 2025 |
| Pickles Coffee House Limited | Wholesale & retail | 2013 |
| Pickles of Oswestry Ltd | Professional & scientific | 2021 |
| Pickstock Construction Limited | Construction | 2014 |
| Pickstock Holdings Limited | Professional & scientific | 2019 |
| Pickstock Homes (Baschurch) Limited | Construction | 2021 |
| Pickstock Homes (Guilsfield) Limited | Construction | 2024 |
| Pickstock Homes (Hodnet) Limited | Construction | 2024 |
| Pickstock Homes (Oswestry) Limited | Construction | 2023 |
| Pickstock Homes (Telford 2) Limited | Construction | 2026 |
| Pickstock Homes (Telford) Limited | Construction | 2021 |
| Pickstock Housing Investments Limited | Real estate | 2014 |
| Picton Gorse Land Limited | Extraterritorial | 2018 |
| Picton Gorse Opco Limited | Extraterritorial | 2018 |
| Piers.Media Limited | Information & communication | 2024 |
| Piers.Rocks Limited | Manufacturing | 2019 |
| Pillars Solutions Ltd | Health & social care | 2026 |
| PILLS4UUK Limited | Health & social care | 2003 |
| PIN Tong Massage Ltd | Other services | 2018 |
| Pinnacle Slating & Tiling Limited | Construction | 2017 |