| Peacock Homes (I.W.) Limited | Real estate | 2002 |
| Phoenix Flooring Projects Limited | Construction | 2017 |
| Pluperfect Translation Limited | Administrative & support | 2006 |
| Pool Cover Limited | Extraterritorial | 2005 |
| Pool Direct Limited | Extraterritorial | 2006 |
| Prices MOT Centre Limited | Professional & scientific | 2007 |
| Quayside Developments Limited | Construction | 2016 |
| Quayside Leisure Limited | Administrative & support | 1999 |
| Red Kite Sky Limited | Administrative & support | 2012 |
| Reflections Bridalwear Limited | Wholesale & retail | 2004 |
| Rowntree Feldwicke | | 1985 |
| Sabah Engineering Limited | Real estate | 1999 |
| SC Wind Repairs Ltd | Other services | 2023 |
| Scotcher Chiropractic Limited | Health & social care | 2005 |
| Scuffs Away Limited | Administrative & support | 2017 |
| Sellars International Healthcare Limited | Financial services | 1997 |
| Shuttleworth Design Limited | Professional & scientific | 2011 |
| Silhouettes (UK) Limited | Wholesale & retail | 2003 |
| Silver Arch Group Limited | Households | 2022 |
| Skis Property Company Limited | Real estate | 2021 |
| Solent Services | | 2002 |
| South Island Management Limited | Hospitality | 2013 |
| South-Wight Properties Ltd | Real estate | 2013 |
| Spence Willard & Partners Ltd | Financial services | 2022 |
| Spence Willard Limited | Real estate | 2012 |
| Spencer Park (IOW) Limited | Real estate | 2011 |
| Ssbrickworkiow Ltd | Construction | 2025 |
| ST. Johns Property Company Limited | Real estate | 1923 |
| Stella Developments Southern Limited | Construction | 2021 |
| Strategic Planning and Development Limited | Administrative & support | 2001 |
| SUM of the Parts Limited | Professional & scientific | 2000 |
| Sun Kissed (IOW) Limited | Other services | 2018 |
| Swimex Enclosures Limited | Other services | 2007 |
| Swimex Fabrication Limited | Construction | 2011 |
| T. a. Reader Transport (I.O.W.) Limited | Transport & logistics | 1998 |
| TC Developments (I.W.) Limited | Real estate | 2004 |
| THE Big Kahuna (IOW) Limited | Hospitality | 2016 |
| THE Caledon Guest House Limited | Hospitality | 2014 |
| THE Old School Centre CIC | Other services | 2015 |
| THE Paddock (Shenley) Limited | Real estate | 2024 |
| THE Strong Room IOW Limited | Arts & recreation | 2017 |
| THE Vectis DIE Company Limited | Manufacturing | 2000 |
| THE Wight Concierge Limited | Other services | 2025 |
| THE Wight Trustee Company Limited | Administrative & support | 2004 |
| Tiam Architects LLP | | 2021 |
| Tides Reach Management Company Limited | Households | 1987 |
| Tile Superstores Limited | Wholesale & retail | 2002 |
| Vectis Building Services Limited | Construction | 2011 |
| Vectis Environmental Consultants Team LLP | | 2012 |
| Vectis Rail Consulting Ltd | Professional & scientific | 2018 |
| Villetrou Investment Company Limited | Real estate | 2001 |
| Wight Eyecare Limited | Administrative & support | 2012 |
| Wight Gastro Ltd | Health & social care | 2019 |
| Wight House Management IW Limited | Real estate | 2008 |
| Wight Wedding Ltd | Other services | 2019 |
| Woodside Services | | 1989 |