| Niche Venue Finders Limited | Professional & scientific | 2017 |
| Nick Taylor Plumbing Limited | Construction | 2020 |
| Nigel Evans Associates Limited | Professional & scientific | 2019 |
| Nightingale Court Malvern Limited | Households | 2015 |
| Nils Limited | Manufacturing | 2025 |
| Nisema Ltd | Financial services | 2024 |
| NJ GAS and Heating Ltd | Other services | 2020 |
| NLG Law Ltd | Professional & scientific | 2023 |
| NO More 925 Ltd | Hospitality | 2016 |
| Nobl Homes Limited | Real estate | 2018 |
| North 24 Films Ltd | Information & communication | 2022 |
| North Grove Apartments (Malvern) Residents Association Limited | Hospitality | 1999 |
| North Hill Court Management (1986) Limited | Households | 1984 |
| Northcherry Limited | Financial services | 2016 |
| Northview Court Management Company Limited | Real estate | 2007 |
| Norton Barracks RTM Company Limited | Households | 2019 |
| Novagen Ltd | Professional & scientific | 2018 |
| Novus Visus Productions Ltd | Information & communication | 2013 |
| NRH Operations Limited | Administrative & support | 2025 |
| NRJ Consultancy Services Limited | Financial services | 2008 |
| NS EDE Consulting Ltd | Professional & scientific | 2019 |
| Nsa/Rbst Ovine Semen Archive Limited | Agriculture & fishing | 2009 |
| Oak & Rutherford Limited | Other services | 2024 |
| Oakland Coachbuilders Limited | Manufacturing | 2005 |
| Oaklands Management (Worcester) Limited | Households | 2011 |
| Oakley Gardens Droitwich Ltd | Households | 2021 |
| Oaks Homes Limited | Construction | 2017 |
| Oasthouse Ventures Holdings Limited | Financial services | 2023 |
| Oasthouse Ventures Limited | Construction | 2014 |
| ODD Autos Limited | Wholesale & retail | 2018 |
| OI OI PTY Limited | | 2012 |
| OIC Success Ltd | Professional & scientific | 2025 |
| Oikos Healthcare Solutions Ltd | Administrative & support | 2022 |
| Oikos Properties Ltd | Households | 2019 |
| Old Court Nurseries LLP | | 2015 |
| Old Market Court Ledbury Limited | Households | 2004 |
| Old Mill Close Management Company Limited | Households | 2003 |
| Oliver T Lewis Limited | Administrative & support | 2026 |
| Oliversmalvern Ltd | Real estate | 2009 |
| Omnium Estates (Malvern) Limited | Real estate | 2018 |
| Omnium Estates (Montpellier) Limited | Real estate | 2019 |
| Omnium Estates Limited | Real estate | 2016 |
| ON Point Paving & Landscaping Limited | Administrative & support | 2025 |
| ON the UP Coaching Ltd | Education | 2023 |
| One AV Ltd | Wholesale & retail | 2016 |
| Online Agri Machinery Ltd | Wholesale & retail | 2022 |
| Online Agri Plant Ltd | Wholesale & retail | 2018 |
| OOM SAI PVT Ltd | Hospitality | 2026 |
| Open Mineral Limited | Professional & scientific | 2021 |
| Open Sky Installations Ltd | Construction | 2018 |
| Open Space Business Centres Limited | Other services | 2017 |
| Operational Resource Solutions Ltd | Professional & scientific | 2013 |
| Optimec Metrology Limited | Manufacturing | 2020 |
| Optimec Systems Limited | Manufacturing | 2020 |
| Opus 21 Limited | Professional & scientific | 2005 |
| Opus Tattoos Limited | Other services | 2013 |
| Oracle Environmental Experts Limited | Water & waste | 2014 |
| Orchard Place (Worcester) RTM Company Limited | Households | 2023 |
| Ordinance Land Ltd | Real estate | 2025 |
| Ordinance Professional Services Ltd | Education | 2025 |
| Oriel House Management Company Limited | Households | 2002 |
| Origicx Ltd | Water & waste | 2017 |
| Original Bullamasay Limited | Real estate | 2020 |
| Orleton House Malvern Limited | Households | 2024 |
| Orobica Ltd | Administrative & support | 2016 |
| Ottergreen Limited | Administrative & support | 2013 |
| Outdoor Management Group Holdings Limited | Financial services | 2024 |
| Outliers Wellbeing Ltd | Health & social care | 2020 |
| Outworx BPO Limited | Administrative & support | 2022 |
| Owen Developments (Malvern) Limited | Real estate | 2012 |
| Owen Developments (Worcester) Limited | Construction | 2009 |
| Owen House Management Company Limited | Real estate | 2002 |
| Owerya Resourcing Ltd | Professional & scientific | 2021 |
| Oxford Scientific Instruments Ltd | Professional & scientific | 2022 |
| Oyaremchuk Limited | Hospitality | 2026 |
| P.B.S. Limited | Real estate | 1971 |
| Pacs Services Limited | Manufacturing | 2006 |
| Paddock Communications Ltd | Professional & scientific | 2011 |
| Painted Britain Ltd | Arts & recreation | 2021 |
| Paladin Defence Ltd | Public administration | 2025 |
| Pallet Protect Ltd | Administrative & support | 2025 |
| Palomino Holdings Limited | Extraterritorial | 2026 |
| Panmar Medical Limited | Health & social care | 2019 |
| Pantel Consulting Limited | Professional & scientific | 2010 |
| Paperstation Limited | Wholesale & retail | 2002 |
| Paperweight Studios Ltd | Professional & scientific | 2025 |
| Parallel Property Lettings Limited | Real estate | 2016 |
| Paranetworking Limited | Professional & scientific | 2019 |
| Park View (Malvern) Limited | Households | 1989 |
| Parke-Robinson Limited | Professional & scientific | 2020 |
| Parker & Sons Roofing Limited | Construction | 2022 |
| Parker Bookkeeping Ltd | Professional & scientific | 2011 |
| Pastor Investments Limited | Financial services | 2025 |
| Pastoral Alliance | Administrative & support | 2009 |
| Pastures Management Company Limited | Households | 1999 |
| Patrin Films Ltd | Information & communication | 2023 |
| Patrolplanner Ltd | Extraterritorial | 2024 |
| Paul Colbourne Limited | Wholesale & retail | 2000 |
| Paw-Pa-Walk Ltd | Other services | 2025 |
| Paws and Claws Pet Supplies and Accessories Ltd | Wholesale & retail | 2023 |