| Clairmar Properties Limited | Real estate | 2020 |
| Clanwest Limited | Wholesale & retail | 2021 |
| Clare Strange Ltd | Information & communication | 2011 |
| Claremont Freehold Limited | Households | 2000 |
| Clarion Search Ltd. | Administrative & support | 2015 |
| Clarke and JAY Surveyors Ltd | Professional & scientific | 2013 |
| Clarke Events (England) Limited | Other services | 2017 |
| Clarke Inns Ltd | Hospitality | 2017 |
| Clarke IP Ltd | Professional & scientific | 2014 |
| Clarke Rollings Properties Ltd | Real estate | 2017 |
| Clarke Ventures Ltd | Professional & scientific | 2022 |
| Class ACT Events Europe Limited | Administrative & support | 2012 |
| Classic Bike Imports Ltd | Wholesale & retail | 2009 |
| Classic Car Engines Limited | Wholesale & retail | 2008 |
| Classic FM Homes Ltd | Real estate | 2007 |
| Classic Marque Investments Ltd | Wholesale & retail | 2018 |
| Classroom Sounds Limited | Information & communication | 2026 |
| Claverdon Lions Ltd | Arts & recreation | 2023 |
| Clay 40 Limited | Real estate | 2009 |
| Clay Property Management Services LLP | | 2007 |
| Clays and Country Limited | Arts & recreation | 2026 |
| Clayton Fire & Security Ltd | Administrative & support | 2007 |
| Clean and Shine Worcester Ltd | Administrative & support | 2026 |
| Clean IT Right Ltd | Administrative & support | 2019 |
| Clean Logic Services Ltd | Administrative & support | 2025 |
| Clear GEM Facilities Management Ltd | Administrative & support | 2020 |
| Clear Hear Limited | Administrative & support | 2004 |
| Clearpath Passenger Transport Ltd | Transport & logistics | 2026 |
| Clearvoice Holdings Limited | Financial services | 2024 |
| Clearwater Property Investments Ltd | Real estate | 2017 |
| Clearwater Property Lettings Limited | Real estate | 2018 |
| Clearwater Property Partners Limited | Real estate | 2018 |
| Clearwater Social Homes Limited | Real estate | 2025 |
| Cleeco Ltd | Professional & scientific | 2015 |
| Clementine Serrell Limited | Administrative & support | 2016 |
| Clemzone Limited | Real estate | 2005 |
| Clicker Event Support Ltd. | Professional & scientific | 2019 |
| Cliff Edge Building Services Ltd | Construction | 2018 |
| Clifton Car & Commercial Ltd | Wholesale & retail | 2024 |
| Clifton Engineering (Worcester) Limited | Manufacturing | 1993 |
| Clifton-Upon-Teme Nursery Limited | Health & social care | 2000 |
| Climate Controlled Hvac Solutions Limited | Construction | 2023 |
| Climate Guide Ltd | Professional & scientific | 2021 |
| Climb Worcester Ltd | Arts & recreation | 2013 |
| Clinters Ltd | Wholesale & retail | 2008 |
| Clintons Property Limited | Real estate | 1988 |
| CLM Marketing Limited | Professional & scientific | 2019 |
| Clockwood Travel Ltd | Administrative & support | 2022 |
| Closer Collective CIC | Information & communication | 2021 |
| Cloud Shepherd Limited | Information & communication | 2013 |
| Cloudbase Consulting Ltd | Other services | 2010 |
| Cloudcomputing Ltd | Information & communication | 2024 |
| Cloude Media Ltd | Information & communication | 2019 |
| Cloude Media Publishing Ltd | Information & communication | 2022 |
| Cloudteq Solutions Limited | Information & communication | 2023 |
| Cloverlay Limited | Other services | 2021 |
| Club Celeste Ltd | Arts & recreation | 2019 |
| Club Lettings Ltd | Real estate | 2023 |
| Club Sourcing Limited | Administrative & support | 2023 |
| Cluglath Group Ltd | Real estate | 2021 |
| CM Rudge Brickwork Ltd | Construction | 2023 |
| CM Trans Ltd Ltd | Transport & logistics | 2017 |
| CMC Consulting Associates Ltd | Professional & scientific | 2019 |
| CMH Designs Limited | Professional & scientific | 2021 |
| CMR Consultants Services Limited | Other services | 2017 |
| CMT Flexibles Limited | Wholesale & retail | 1993 |
| CMT Travel Ltd | Administrative & support | 2011 |
| CMW 11 Ltd | Real estate | 2025 |
| CMX Events Limited | Education | 2022 |
| CMX Internet Solutions Ltd | Information & communication | 2014 |
| CN Global Services Ltd | Health & social care | 2025 |
| CNC-101 Ltd | Professional & scientific | 2021 |
| CNM Real Estate Ltd | Real estate | 2026 |
| CO1911 Limited | Professional & scientific | 2014 |
| Coaching and Motivation Limited | Professional & scientific | 2026 |
| Cobl Products Ltd | Other services | 2025 |
| Cochrane Industries UK Limited | Manufacturing | 1988 |
| Cocktail Jigger Company Limited | Wholesale & retail | 2023 |
| Cocktails and Calamari Ltd | Hospitality | 2020 |
| Coco Crave Ltd | Hospitality | 2024 |
| Code Agent Ltd | Real estate | 2024 |
| Codeswoop Limited | Information & communication | 2022 |
| Codritions Technologies Limited | Information & communication | 2025 |
| Cofield Construction Ltd | Construction | 2017 |
| Coggan Associates Limited | Professional & scientific | 2002 |
| Coglans Property Ltd | Real estate | 2023 |
| Cognet Occupational Safety and Health Limited | Education | 2007 |
| Cognition Business Consulting Ltd | Professional & scientific | 2010 |
| Colab Worcs CIC | Health & social care | 2026 |
| Cold Plan Limited | Construction | 2011 |
| Coldbrock Healthcare Ltd | Health & social care | 2017 |
| Colin Jeffrey Associates Limited | Administrative & support | 2003 |
| Colin Phillips Limited | Professional & scientific | 2025 |
| Collar & TIE Limited | Arts & recreation | 1993 |
| Collective Malvern Limited | Other services | 2025 |
| Collective Soul CIC | Health & social care | 2025 |
| Collective Volition Limited | Information & communication | 2019 |
| Collectors Walk Limited | Real estate | 2011 |
| Colletts Green Timber Ltd | Wholesale & retail | 2023 |
| Collingham Consulting Limited | Professional & scientific | 2016 |