| Casita Yoga Battersea Ltd | Education | 2026 |
| Centred Flow Ltd | Arts & recreation | 2024 |
| Chantry Court (Shanklin) Management Co. Ltd | Households | 2008 |
| Character Building Limited | Real estate | 2000 |
| Charles's Angels Limited | Other services | 2015 |
| Chasewater Limited | Manufacturing | 2008 |
| Chelmerland Limited | Manufacturing | 1983 |
| Cherry and Carr Developments Ltd | Construction | 2021 |
| Cirsium Property Group Ltd | Real estate | 2024 |
| Clanfield Property Account Limited | Other services | 2003 |
| Clare's Cosmetic Skin Centre Ltd | Other services | 2019 |
| CLC Productions Ltd | Professional & scientific | 2018 |
| Clean Mobile App Limited | Information & communication | 2025 |
| Clever Pixel Limited | Information & communication | 2011 |
| Cliff House Management Limited | Households | 1995 |
| Clintech Ltd | Health & social care | 2025 |
| CMD Services Limited | Professional & scientific | 2007 |
| CNC Coatings Limited | Manufacturing | 2017 |
| Coastal Mobility Scooters (Stockport) Limited | Wholesale & retail | 2003 |
| Coastguard Cottages Management Company Limited | Households | 1988 |
| Cobleys Catering Ltd | Hospitality | 2014 |
| Code COG Consulting Limited | Information & communication | 2008 |
| Codeselect Consulting Limited | Information & communication | 2006 |
| Commodifusion Limited | Information & communication | 2010 |
| Conrad Electrical and Electronic Services Ltd | Manufacturing | 2019 |
| Continue and Begin Limited | Professional & scientific | 2014 |
| Coral Bay Swim School LLP | | 2021 |
| Core (Fishbourne) Limited | Construction | 2025 |
| Core (Victoria) IOW Limited | Construction | 2022 |
| Corner House (Sandown) Management Company Limited | Real estate | 2015 |
| Cosmetic Clinic IOW Ltd | Other services | 2024 |
| CR Mortgages Ltd | Financial services | 2017 |
| Cranmore Construction (IOW) Ltd | Construction | 2024 |
| Crescenzo Properties Ltd | Real estate | 2025 |
| Cridmore Shoot Ltd. | Arts & recreation | 2013 |
| Culvertronic Limited | Manufacturing | 2008 |
| Customer Fit Limited | Professional & scientific | 2024 |
| CUT 'N' Run Limited | Other services | 1998 |
| D H Price Holdings Ltd | Financial services | 2025 |
| D H Price Motors Ltd | Wholesale & retail | 2015 |
| D H Price Recovery Ltd | Extraterritorial | 2015 |
| D Wisbey Consulting Ltd | Professional & scientific | 2015 |
| D&J Frost Limited | Construction | 2026 |
| Danien Ltd | Information & communication | 2021 |
| Daoist Flow Retreats Ltd | Education | 2018 |
| Daoist Flow Trainings Ltd | Education | 2021 |
| Datalite UK Limited | Wholesale & retail | 2007 |
| David Buckeridge Investigations Limited | Agriculture & fishing | 2006 |
| Demon Drains Ltd | Water & waste | 2024 |
| Dempsey Holdings Limited | Financial services | 2014 |
| Dempsey Property Limited | Real estate | 2015 |
| Discount Tyres IOW Limited | Wholesale & retail | 2023 |
| Divisor Systems Limited | Information & communication | 2006 |
| Dixon & Rickels Limited | Professional & scientific | 2006 |
| Doris Holdings Ltd | Real estate | 2022 |
| Dr.Vnjoshi Ltd | Health & social care | 2023 |
| Drivex Limited | Education | 2006 |
| Ducks-In-A-Row Consulting Limited | Professional & scientific | 2006 |
| Dudman Ltd | Financial services | 2025 |
| DV Property Services Limited | Real estate | 2018 |
| DW Project Solutions Limited | Professional & scientific | 2014 |
| Dwhite Solutions Ltd | Professional & scientific | 2024 |
| EA Office Solutions Limited | Administrative & support | 2026 |
| Eastman Electrical Services Ltd | Construction | 2026 |
| Edocemus Ltd | Professional & scientific | 2022 |
| Edwards Electrical (IW) Ltd | Construction | 2017 |
| Electrical Data Ltd | Construction | 2025 |
| Electrostrata Limited | Information & communication | 1999 |
| Elite Spas Isle of Wight Limited | Wholesale & retail | 2007 |
| Ellwood Ventures Ltd | Hospitality | 2026 |
| Embassy Air Services Limited | Professional & scientific | 1979 |
| Embodied Whole Health Ltd | Education | 2023 |
| Enerfair Engagement Ltd | Information & communication | 2017 |
| Engineering and Beyond Ltd | Professional & scientific | 2014 |
| ESG Solutions (IOW) Ltd | Professional & scientific | 2022 |
| Essential Rooms Ltd | Real estate | 2019 |
| Eurynet Limited | Information & communication | 2000 |
| Everything Chocolate Fran's Belgium Creations Ltd | Wholesale & retail | 2024 |
| Evolution Building Contractors Limited | Construction | 2021 |
| F&N Consulting Ltd | Professional & scientific | 2020 |
| F.W. Marsh (Electrical Engineering) Limited | Real estate | 1975 |
| FB the Wholesaler Limited | Wholesale & retail | 2024 |
| FCG Homecare Limited | Health & social care | 2023 |
| FEL Communications Limited | Manufacturing | 2009 |
| Ferndale Court Management Company Limited | Households | 2006 |
| Final Finish (IOW) Limited | Administrative & support | 2026 |
| Final Finish Exterior Cleaning Ltd | Administrative & support | 2026 |
| Finnesto Limited | Construction | 2026 |
| Fire Alarms Design Engineering Ltd | Professional & scientific | 2024 |
| Fire and Bliss International Ltd | Other services | 2023 |
| Fire and Bliss Ltd | Other services | 2024 |
| Firecrest Installation and Services Ltd | Construction | 2012 |
| Fletchwood Marine Consultants Limited | Manufacturing | 2014 |
| Floor Design (IW) Limited | Construction | 2003 |
| Fndt Ltd | Professional & scientific | 2023 |
| Footprint IT Solutions Limited | Information & communication | 2014 |
| Foray Design Associates Ltd | Professional & scientific | 2006 |
| Fort Spinney Limited | Real estate | 2020 |
| Fort ST Ltd | Real estate | 2025 |
| Foxbyte Limited | Information & communication | 2003 |