| Cladrite Construction Limited | Construction | 2015 |
| Claritudo Ltd | Administrative & support | 2016 |
| Clarke Media & Investments Limited | Information & communication | 2025 |
| Clarkes of Aymestrey Limited | Wholesale & retail | 2023 |
| Classy Textiles Ltd | Wholesale & retail | 2020 |
| Clean Machine Limited | Wholesale & retail | 1999 |
| CM Carpentry and Building Services Limited | Construction | 2021 |
| CMH Consultancy Ltd | Professional & scientific | 2026 |
| CML Professional Services Ltd | Information & communication | 2022 |
| CN Capital Investments Limited | Financial services | 2024 |
| CN Estate Management Limited | Real estate | 2021 |
| CN Housing Network Limited | Real estate | 2024 |
| CN Property Developments Limited | Real estate | 2016 |
| Coaching to BE Ltd. | Professional & scientific | 2016 |
| Coastguard Estates Ltd | Hospitality | 2025 |
| Cockett Property Limited | Real estate | 2012 |
| Coldwell Properties Limited | Real estate | 1987 |
| Colebatch Ltd | Wholesale & retail | 2023 |
| Colin Forbes Limited | Information & communication | 2014 |
| Combined Ventures Group Ltd | Wholesale & retail | 2025 |
| Comfordt Holdings Limited | Financial services | 2025 |
| Compendium Education and Training Ltd | Education | 2014 |
| Concept Design Living Ltd | Professional & scientific | 2025 |
| Condor Engineering Ltd | Professional & scientific | 2025 |
| Coney Consultancy Services Ltd | Professional & scientific | 2017 |
| Connected Group Limited | Administrative & support | 2006 |
| Connop & SON Holdings Limited | Financial services | 2022 |
| Connop & SON Limited | Construction | 1992 |
| Connop Chicks Limited | Agriculture & fishing | 2025 |
| Conod's of Leominster Limited | Wholesale & retail | 2003 |
| Conods Specialist Services Limited | Wholesale & retail | 2025 |
| Conscia Ltd. | Information & communication | 2000 |
| Conulus Limited | Information & communication | 2005 |
| Corbett Farms Limited | Agriculture & fishing | 1959 |
| Corbett Farms Poultry Limited | Agriculture & fishing | 2023 |
| Core Efficiencies Limited | Administrative & support | 2024 |
| Cornell & Co Ltd | Wholesale & retail | 2015 |
| Countrywatch (UK) Limited | Administrative & support | 1993 |
| Covenhope Construction Ltd | Construction | 2012 |
| Cozette Engineering Limited | Manufacturing | 2020 |
| Craftsman Designs Ltd | Manufacturing | 2022 |
| Crate Stuff Community Interest Company | Arts & recreation | 2025 |
| Craze Beauty Ltd | Wholesale & retail | 2025 |
| Creative Bespoke Solution's Ltd | Construction | 2018 |
| CRH Enterprises Ltd | Hospitality | 2016 |
| Crochail Forest Ltd | Agriculture & fishing | 2006 |
| Croft Carpentry Ltd | Construction | 2018 |
| Croft Crescent (Private Road) Ltd | Households | 2021 |
| Crushproof Ltd | Information & communication | 2010 |
| Cullis Leisure Ltd | Hospitality | 2015 |
| CVC Window Cleaning Ltd | Administrative & support | 2013 |
| CVM Recruit Limited | Administrative & support | 2022 |
| Cyprus Villa Lettings Ltd | Hospitality | 2014 |
| Cyril Bason (Stokesay) Limited | Wholesale & retail | 1975 |
| D & N Construction Leominster Ltd | Construction | 2023 |
| D G Duggan Ltd | Manufacturing | 2026 |
| D V Bottoms & Co Ltd | Professional & scientific | 2008 |
| D V Bottoms Investments Ltd | Financial services | 2020 |
| D V Watkins Group Limited | Real estate | 2005 |
| D. R. Davies & Sons (Farmers) Limited | Agriculture & fishing | 1976 |
| D. R. Davies & Sons (Lower Derndale) Limited | Agriculture & fishing | 1987 |
| D.E. Powell Limited | Financial services | 2021 |
| D.R. Davies & Sons (Court Farm) Limited | Agriculture & fishing | 1987 |
| D.V. Watkins Developments Limited | Extraterritorial | 2011 |
| D.V. Watkins Limited | Construction | 2004 |
| Damocles Security Consultants Ltd | Other services | 2023 |
| Danfords ( Concrete Equipment ) Limited | Construction | 2013 |
| Danfords (Construction Equipment) Ltd | Manufacturing | 2010 |
| Danfords Holdings Limited | Financial services | 2019 |
| Danfords International Limited | Financial services | 2024 |
| Dasie Ltd | Wholesale & retail | 2017 |
| David Baker Decorating Limited | Construction | 2008 |
| DB Concrete Services Limited | Agriculture & fishing | 2016 |
| DCS Metals Leominster Limited | Professional & scientific | 2015 |
| Dealistic Limited | Real estate | 2000 |
| Deanfield Health Clinic Ltd | Administrative & support | 2013 |
| Deaves HR Limited | Professional & scientific | 2009 |
| Demaus & Marsden Ltd | Professional & scientific | 2021 |
| Demaus Building Diagnostics Ltd | Professional & scientific | 1997 |
| Desk Monsters Limited | Health & social care | 2014 |
| Detailing Services Limited | Professional & scientific | 2007 |
| DHM Farming Ltd | Agriculture & fishing | 2019 |
| Diabb Services Ltd | Agriculture & fishing | 2008 |
| Digital Smile Centre Ltd | Manufacturing | 2018 |
| Dinmore Caravans Limited | Wholesale & retail | 1977 |
| Dinmore Properties Limited | Real estate | 2023 |
| Discover Parks Ltd | Hospitality | 1998 |
| DJE Accident Repair Centre Ltd | Wholesale & retail | 2025 |
| Dolidre Farms Ltd | Agriculture & fishing | 2025 |
| Don'T BE SO Limited | Information & communication | 2011 |
| Donald Mcintyre Design Limited | Professional & scientific | 2006 |
| DR Chris Targett Limited | Health & social care | 2024 |
| Dr.Jekyll's Sweet LAB Ltd | Hospitality | 2025 |
| Draft.It Design Studio Limited | Construction | 2022 |
| Dragoneye Creative Ltd | Wholesale & retail | 2023 |
| Dragoneye Digital Vision Ltd | Information & communication | 2026 |
| Drapers Lane Delicatessen Ltd | Wholesale & retail | 2020 |
| DRUGS2U Ltd | Health & social care | 2022 |
| DS Fabrications Limited | Construction | 2003 |
| Duck in the HAT Enterprises Ltd | Professional & scientific | 2025 |