| County Hire Limited | Administrative & support | 2002 |
| Cowan Ventures Ltd | Wholesale & retail | 2021 |
| COX Property Management Limited | Hospitality | 2014 |
| CPH Transport Ltd | Transport & logistics | 2014 |
| CR Sea Ltd | Information & communication | 2026 |
| Credicollect Ltd | Administrative & support | 2026 |
| Critical Information Group Limited | Information & communication | 2019 |
| Critical Information Ltd | Professional & scientific | 2018 |
| Critical Land Developments Limited | Construction | 2021 |
| Crowley Excavation NET Zero Ltd | Construction | 2025 |
| CSP Roads Ltd | Transport & logistics | 2015 |
| Cufaude Court Management Limited | Households | 2004 |
| Cured Framework Limited | Professional & scientific | 2021 |
| Cyber Distribution Ltd | Wholesale & retail | 2018 |
| Cyber Education Ltd | Education | 2022 |
| Cyber Protection UK Ltd | Information & communication | 2015 |
| D R Crowley Holdings Ltd | Professional & scientific | 2025 |
| D.A.M.S Care Ltd | Health & social care | 2021 |
| Daja Services Limited | Arts & recreation | 2024 |
| Daval Associates Limited | Administrative & support | 2026 |
| Day Engineering Ltd | Professional & scientific | 2019 |
| DC Air Conditioning and Refrigeration Ltd | Construction | 2017 |
| DC Exterior Property Maintenance Ltd | Administrative & support | 2024 |
| Dchs Services Ltd | Information & communication | 2017 |
| DDC Property Maintenance Ltd | Construction | 2026 |
| Deane Park Properties Limited | Financial services | 2016 |
| Denoms Ltd | Construction | 2021 |
| Deventions Ltd | Wholesale & retail | 2025 |
| Deventions Studio Limited | Professional & scientific | 2025 |
| DFS Engineering Limited | Professional & scientific | 2013 |
| Digital House MD Limited | Information & communication | 2011 |
| Digital Infra Limited | Real estate | 2025 |
| Digital Outback Ltd | Information & communication | 2021 |
| DIGZ4DOGZ Limited | Other services | 2016 |
| Distraction LAB Ltd | Information & communication | 2024 |
| DLH Home and Leisure Ltd | Wholesale & retail | 2024 |
| DLR Hampshire Ltd | Real estate | 2025 |
| DO Electrics Limited | Construction | 2019 |
| Dodan Limited | Other services | 2020 |
| DPF Pro Clean Limited | Administrative & support | 2018 |
| DR Matthew Williams Mrcvs Ltd | Professional & scientific | 2018 |
| E-Pearl Properties Limited | Real estate | 2022 |
| Easy Estimating Limited | Information & communication | 2024 |
| Eating for Health With Cornmell Nutritional Therapy Ltd | Health & social care | 2023 |
| Eazy Lettings Ltd | Construction | 2020 |
| EC Heating Controls Limited | Construction | 2019 |
| Ecco Developments Ltd | Real estate | 2023 |
| Ecoace Limited | Construction | 2015 |
| Ecomech Plumbing & Heating Ltd | Construction | 2018 |
| Ecosmart Windows Limited | Construction | 2024 |
| Educare ICT Ltd | Information & communication | 2013 |
| Edwards RG26 Ltd | Information & communication | 2023 |
| Edwards Specialist Services Ltd | Other services | 2018 |
| Eldridge & Associates Limited | Professional & scientific | 2009 |
| ELEV8 Advisory Ltd | Professional & scientific | 2025 |
| Elevo Coaching Ltd | Other services | 2025 |
| Elite-Iot Limited | Professional & scientific | 2019 |
| Eljay Projects Limited | Construction | 2024 |
| Elute Intelligence Holdings Limited | Financial services | 2019 |
| Elute Intelligence Limited | Information & communication | 2008 |
| Elysian Skin Ltd | Health & social care | 2020 |
| Endocrine Pharmaceuticals Limited | Professional & scientific | 1995 |
| Energy Vault Limited | Administrative & support | 2010 |
| ERE Couriers Ltd | Transport & logistics | 2020 |
| ESJ Homes Ltd | Real estate | 2025 |
| Esmur Ltd | Transport & logistics | 2024 |
| Evans & Evans House & Home Limited | Real estate | 2019 |
| Evans Fleet Services Ltd | Transport & logistics | 2021 |
| Event 95 Ltd | Hospitality | 2023 |
| Evolution Precision Ltd | Manufacturing | 2024 |
| EX8 Properties Limited | Real estate | 2018 |
| Exate Ltd | Other services | 2014 |
| Excellent Windows,Doors and Conservatories Ltd | Construction | 2009 |
| Exodus Capital and Consulting Ltd | Financial services | 2024 |
| Express Skylights Online Limited | Construction | 2020 |
| Exterior Excellence Window Cleaning Services Ltd | Administrative & support | 2017 |
| Ezee Software Limited | Information & communication | 2022 |
| Facilitek Solutions Limited | Administrative & support | 2017 |
| Fairgreen Court RTM Company Limited | Households | 2025 |
| Falcon Garage Limited | Wholesale & retail | 2008 |
| Falconway Limited | Real estate | 1990 |
| Fast TEX Limited | Wholesale & retail | 2009 |
| Felix and Co Properties Limited | Real estate | 2026 |
| Ferndown Grange Residents Management Company Limited | Households | 2006 |
| Fftk Holdings Limited | Financial services | 2020 |
| Field Strategic Solutions Ltd | Wholesale & retail | 2026 |
| Find Your Sanctuary Ltd | Real estate | 2020 |
| Fiona Frances Designs Ltd | Manufacturing | 2020 |
| First Byte Graphics Limited | Information & communication | 2003 |
| First Rate Mechanical Services Ltd | Construction | 2019 |
| Fisher Hydraulics Ltd | Manufacturing | 2011 |
| FJ Floors Ltd | Construction | 2022 |
| Flare Music Productions Limited | Information & communication | 2018 |
| Flawless Skin & Body Ltd | Other services | 2024 |
| Fleetcliff (Tadley) Limited | Real estate | 2021 |
| Floreat Car Consultancy Limited | Professional & scientific | 1993 |
| Flowgenix Automations Ltd | Professional & scientific | 2025 |
| Fmdimascio Ltd | Information & communication | 2021 |
| Forbury Homes Limited | Extraterritorial | 2018 |
| Foremost Tradings Limited | Administrative & support | 2020 |