| Offshore Marine Services Limited | Administrative & support | 1991 |
| OJM Properties (IOW) Limited | Real estate | 2022 |
| OMC (Bembridge) Limited | Households | 2011 |
| One Stop Property Company IOW Limited | Construction | 2015 |
| OPS Enterprises Ltd | Arts & recreation | 2023 |
| Orchard Park Property Services Limited | Real estate | 2013 |
| Over the Top Rigging Services Ltd | Arts & recreation | 2021 |
| OVI Trading Company Limited | Real estate | 2024 |
| PBI IOW Ltd | Hospitality | 2026 |
| Peregrina Investments Limited | Financial services | 2019 |
| Phenomenal Living Limited | Administrative & support | 2023 |
| Pilot Boat Bembridge Limited | Hospitality | 2024 |
| PK Engineering Consultancy Ltd | Professional & scientific | 2026 |
| Positive Outlook Ltd | Professional & scientific | 2003 |
| Ready Homes IOW Limited | Administrative & support | 2024 |
| Redhouse Management Company (Bembridge) Limited | Households | 1987 |
| Remoteview Media Limited | Professional & scientific | 2016 |
| Revive IOW Ltd | Arts & recreation | 2020 |
| RGK Consultancy Ltd | Real estate | 2024 |
| Ruddell Developments Ltd | Construction | 2019 |
| Ruddell Homes Limited | Real estate | 2006 |
| Sail B'N'B Ltd | Extraterritorial | 2019 |
| Saltbox Property Staging Ltd | Professional & scientific | 2023 |
| Scadden Orthopaedic Ltd | Health & social care | 2019 |
| Sea Room Zero Waste C.I.C. | Wholesale & retail | 2021 |
| Shed IOW Ltd | Hospitality | 2018 |
| SJ Allocca Limited | Professional & scientific | 2020 |
| Spinnaker Chandlery Limited | Wholesale & retail | 2014 |
| Spyder UK Limited | Information & communication | 2008 |
| Steyne Farm NO.2 Limited | Households | 2001 |
| Summit Flow Plumbing Ltd | Construction | 2026 |
| Talkingbass Limited | Education | 2017 |
| THE 122 Management Company Limited | Households | 1991 |
| THE Forge Mews Limited | Real estate | 2000 |
| THE Limes Residential Care Home Limited | Health & social care | 2012 |
| THE Mews (Isle of Wight) Management Company Limited | Households | 1991 |
| THE Propeller Inn IW Ltd | Hospitality | 2021 |
| Thomas P Cochran Ltd | Manufacturing | 2018 |
| TOM White Blade Repair Ltd | Professional & scientific | 2024 |
| Toms Jewellery Workshop Ltd | Manufacturing | 2023 |
| Tomwood Estates Limited | Real estate | 2011 |
| Transformational Travel Ltd | Administrative & support | 2024 |
| Transit Handrail Lighting Limited | Manufacturing | 2018 |
| Treecare IOW Ltd | Other services | 2025 |
| Twiza Ltd | Real estate | 2023 |
| Vectis Gliding Club Limited | Arts & recreation | 1997 |
| Wickham Construction IOW Ltd | Construction | 2023 |
| Wickham Developments IOW Limited | Construction | 2022 |
| Wight Coast Holidays Limited | Hospitality | 2018 |
| Wight Marketing Ltd | Information & communication | 2018 |
| Wight Paddle Ltd | Administrative & support | 2020 |
| Wight Spas & Pools Ltd | Construction | 2024 |
| Wight Technology Limited | Manufacturing | 2006 |
| Windmills Preschool Limited | Education | 2003 |
| Write Authors Limited | Extraterritorial | 2011 |