| Glen Place Management Company Limited | Households | 2015 |
| Globallegai Ltd | Information & communication | 2025 |
| Good GUM Ltd | Manufacturing | 2023 |
| Grey Consortium Holdings Ltd. | Information & communication | 2023 |
| Grosvenor Court ( Sandown ) Limited | Households | 2012 |
| GUY Whitehouse Yacht Design Limited | Professional & scientific | 2004 |
| GWD Management Limited | Households | 2014 |
| Hagen IT Consulting Ltd | Information & communication | 2015 |
| Harbrown Limited | Transport & logistics | 2001 |
| Haribo Blades IOW Limited | Manufacturing | 2026 |
| Hazelhurst 2016 Limited | Households | 2016 |
| Heatherwood (Totland Bay) Management Company Limited | Households | 2006 |
| Helping Hands (IOW) Ltd | Administrative & support | 2012 |
| High Park Court Management Company Limited | Households | 1985 |
| Highfield Court Residents Association (IOW) Limited | Households | 1994 |
| Highlands Experience Ltd | Real estate | 2024 |
| HJN Quantity Surveyors Ltd | Professional & scientific | 2014 |
| Home View Solutions IW Ltd | Construction | 2021 |
| Hunters Moon Close Residents Management Limited | Households | 2023 |
| Invenio Estates Ltd | Real estate | 2023 |
| Ironworks Advantage Limited | Manufacturing | 2025 |
| Island Auto Care Limited | Wholesale & retail | 2018 |
| Island Clean Ltd | Administrative & support | 2022 |
| Island Life Brewery Limited | Manufacturing | 2023 |
| Islandwide Marine Ltd | Professional & scientific | 2026 |
| Isle of Wight Bouncy World Ltd | Administrative & support | 2021 |
| IW Fencing and Decking Ltd | Construction | 2025 |
| J Cushen Services Ltd | Manufacturing | 2026 |
| Jawic Blade Specialists Ltd | Manufacturing | 2024 |
| Jjjog Coffee Limited | Wholesale & retail | 2023 |
| JL Wind Ltd | Manufacturing | 2023 |
| JLM Joinery IOW Limited | Construction | 2014 |
| Jmbw Services Ltd | Manufacturing | 2026 |
| JMO Groundworks Limited | Construction | 2023 |
| John Rowell Estate Management Ltd | Real estate | 2014 |
| JON Barrett Services Limited | Manufacturing | 2019 |
| JPC Blade Repairs Limited | Manufacturing | 2025 |
| JSM Blades Limited | Manufacturing | 2025 |
| Kasi Holdings Ltd | Construction | 2020 |
| Keats Retreat (Shanklin) Management Company Limited | Households | 1999 |
| Kingdom Reality Limited | Information & communication | 2026 |
| Lainston Grange Property Management RTE Company Limited | Households | 2012 |
| Lane Aerial Media Ltd | Information & communication | 2026 |
| Larkfields (NO.2) Management Company Limited | Households | 1991 |
| Larkfields (NO.3) Management Company Limited | Households | 1991 |
| Lawns Court 39 Carter Street Management Limited | Households | 2015 |
| LDH Blade Service Ltd | Financial services | 2025 |
| Linbland Properties Limited | Households | 1995 |
| Lindco Limited | Households | 1999 |
| Lulubecs Ltd | Wholesale & retail | 2025 |
| Mad-Aid Limited | Health & social care | 2012 |
| Madvik 5 Star Cleaning Ltd | Administrative & support | 2023 |
| Madvik Limited | Wholesale & retail | 2020 |
| Marine Court Management Company (Ventnor) Limited | Households | 1991 |
| Marine Detail IOW Limited | Manufacturing | 2022 |
| Marine Safety Services Ltd | Professional & scientific | 2025 |
| Mariners ROW Bembridge Limited | Households | 2009 |
| Massey Vandenberg Limited | Professional & scientific | 1996 |
| Matthannahaccess Ltd | Construction | 2025 |
| MB Carpentry & Maintenance Ltd | Construction | 2012 |
| Mentfade Limited | Health & social care | 1982 |
| MF Composite Solution Ltd | Manufacturing | 2026 |
| Millfield House Freehold Limited | Real estate | 2017 |
| Milne Court Hunnyhill Limited | Households | 2001 |
| Mint & Maple Ltd | Manufacturing | 2024 |
| Montagu House (Isle of Wight) Limited | Households | 2000 |
| Moonsbright Limited | Hospitality | 2024 |
| Morton Mews Management Limited | Households | 2003 |
| Motors R US IOW Limited | Wholesale & retail | 2018 |
| Mountain ASH Management Company Limited | Households | 2017 |
| My First 1000 Miles Ltd | Education | 2025 |
| Navlabs Ltd | Information & communication | 2018 |
| Neptune Southern Limited | Other services | 2009 |
| New Lodge (IOW) Management Company Limited | Households | 2005 |
| Newco Media Ltd | Information & communication | 2011 |
| Newport (IOW) Youth Limited | Arts & recreation | 2025 |
| NG Poultry Plus Limited | Health & social care | 2026 |
| North Wells Management Company Limited | Households | 1987 |
| North Wind Digital Ltd | Information & communication | 2018 |
| NOW Chair International Limited | Manufacturing | 2025 |
| Nucleus Horizons Ltd | Health & social care | 2022 |
| Nucleus Independent Social Work Services Ltd | Health & social care | 2025 |
| Nucleus Precision Consultants Ltd | Other services | 2020 |
| Nucleus Property Investments Ltd | Real estate | 2022 |
| Nutkins Retreat Ltd | Hospitality | 2020 |
| Nyad Group Ltd | Real estate | 2025 |
| Oakwood Wight Limited | Professional & scientific | 2000 |
| Ocean Coats Marine Services Ltd | Manufacturing | 2022 |
| OGO Electrical Ltd | Construction | 2026 |
| Old Kiln Residents Management Company Limited | Households | 1990 |
| Old School Place (IOW) Limited | Households | 2024 |
| Ontrack Accounting Services Limited | Administrative & support | 2014 |
| Orchard Court (Shanklin) Management Company Limited | Households | 1990 |
| Orchid Court Management Company (IW) Limited | Households | 2017 |
| Osborne Garage (IW) Limited | Wholesale & retail | 2013 |
| Osborne Golf Club Limited | Arts & recreation | 2013 |
| Osborne Stable Block Limited | Transport & logistics | 1999 |
| Osborne Villas Limited | Households | 2016 |
| OTT Auto Limited | Administrative & support | 2019 |
| OUR Island Radio C.I.C. | Information & communication | 2025 |