| Buy and Rent Ltd | Administrative & support | 2025 |
| Buyur Limited | Wholesale & retail | 2010 |
| Byks Automotive Ltd | Professional & scientific | 2019 |
| Byldan Consultancy Limited | Professional & scientific | 2017 |
| C & a Pound+ Ltd | Wholesale & retail | 2025 |
| C & B Products Limited | Real estate | 1995 |
| C & S Desiccants Limited | Other services | 2018 |
| C a Roycroft Painters & Decorators Limited | Construction | 2003 |
| C C Planning Limited | Hospitality | 2018 |
| C Clack Holdings Ltd | Financial services | 2023 |
| C F G Properties Ltd | Real estate | 2026 |
| C H Plumbing & Heating Services Ltd | Construction | 2019 |
| C K Videos (Home Entertainment) Limited | Wholesale & retail | 2002 |
| C T Hand & Sons Construction Ltd | Construction | 2015 |
| C&A Care Ltd | Transport & logistics | 2021 |
| C&A Cleaning Ltd | Administrative & support | 2024 |
| C&L Amery Limited | Other services | 2020 |
| C. Littleton & Sons Limited | Health & social care | 2019 |
| C.D. Reeves Limited | Construction | 2006 |
| C.D.M.I.E Ltd | Administrative & support | 2022 |
| C.I Properties (Crewe) Ltd | Real estate | 2021 |
| C.L.H Railway Services Ltd | Manufacturing | 2024 |
| C.S.I Manchester (Holdings) Limited | Financial services | 2014 |
| C.S.I. (Manchester) Limited | Information & communication | 1998 |
| C.S.I. Developments Limited | Information & communication | 2012 |
| C2C Projects Limited | Professional & scientific | 2014 |
| C4 Group Ltd | Professional & scientific | 2022 |
| Caban Transport Limited | Transport & logistics | 2014 |
| Cabbie Britania Ltd | Transport & logistics | 2026 |
| Cableworx Limited | Wholesale & retail | 2023 |
| Cabriolet Spares Ltd | Wholesale & retail | 2023 |
| Cadence Consulting Group Ltd | Professional & scientific | 2025 |
| Cairnforth Consulting Limited | Professional & scientific | 2005 |
| Cake Box Lancaster Limited | Wholesale & retail | 2025 |
| Calder Riverside Limited | | 1967 |
| Calders Green (Management) Company Limited | Administrative & support | 2005 |
| Calocoach Ltd | Other services | 2024 |
| Calypso Pubs and Bars Ltd | Professional & scientific | 2026 |
| Camalus Ltd | Professional & scientific | 2018 |
| Camerawise Limited | Information & communication | 2011 |
| Campers N Commercials Limited | Manufacturing | 2017 |
| Camtek Cheshire Ltd | Administrative & support | 2019 |
| CAN - Solutions Limited | Information & communication | 2011 |
| Candidate Pool Ltd | Administrative & support | 2024 |
| Candles 4 U Ltd | Wholesale & retail | 2022 |
| Cannexa Holdings Ltd | Financial services | 2026 |
| Cannexa Limited | Wholesale & retail | 2026 |
| Cannon House Ltd | Wholesale & retail | 2026 |
| Canskate Designs Limited | Professional & scientific | 2007 |
| Cantorbery Management Ltd | Professional & scientific | 2015 |
| Cantrack Global Ltd | Wholesale & retail | 2008 |
| Caps Consultants Limited | Administrative & support | 2014 |
| CAPSA6 Ltd | Information & communication | 2018 |
| Capture Motorsport Ltd | Administrative & support | 2021 |
| Capvg Ltd | Wholesale & retail | 2021 |
| Car Care (NW) Limited | Wholesale & retail | 2015 |
| Cara Care Ltd | Public administration | 2025 |
| Carbide Dies (Birmingham) Limited | Manufacturing | 1981 |
| Carbon Construction and Building Ltd | Construction | 2023 |
| Cardaw Properties Limited | Real estate | 2025 |
| Care and Costing Procedure Services Limited | Health & social care | 2013 |
| Care LA Salute Ltd | Health & social care | 2019 |
| Carewayhire Ltd | Administrative & support | 2021 |
| Carewell Carers Group Ltd | Administrative & support | 2024 |
| Carewell Carers Ltd | Administrative & support | 2022 |
| Carmi Property Ltd | Real estate | 2022 |
| Carmichael Catering Ltd | Hospitality | 2023 |
| Caroline Carter Occupational Health Limited | Health & social care | 2009 |
| Carpe Diem Construction Cheshire Ltd | Construction | 2022 |
| Carpenter Food Company Limited | Hospitality | 2022 |
| Cartlidge Carpentry Ltd | Manufacturing | 2021 |
| Carz 4 UK Ltd | Transport & logistics | 2009 |
| Caseflow Automation Limited | Information & communication | 2025 |
| Cassie Construct Ltd | Administrative & support | 2024 |
| Castelo David Ltd | Information & communication | 2019 |
| Castle Contracting Services Limited | Construction | 2024 |
| Casymont Ltd | Transport & logistics | 2017 |
| Catalyst Consult Ltd | Professional & scientific | 2024 |
| CATER2U Mortgages Ltd | Professional & scientific | 2025 |
| Caterham Graduates Racing Club Limited | Arts & recreation | 2004 |
| Cathay Chinese Takeaway (Crewe) Limited | Hospitality | 2026 |
| Cathay Chinese Takeaway Ltd | Hospitality | 2017 |
| Cathodic Protection and Corrosion Control Company Ltd | Manufacturing | 2018 |
| Catwalk Collection Handbags Ltd | Manufacturing | 2005 |
| CBF Security Ltd | Administrative & support | 2023 |
| CC Transportation Ltd | Transport & logistics | 2025 |
| Cccrewe Ltd | Wholesale & retail | 2011 |
| CCL Cleaning Limited | Administrative & support | 2020 |
| CCL Training Limited | Administrative & support | 2006 |
| CCL Universal Limited | Professional & scientific | 2016 |
| CDW Joinery Ltd | Construction | 2023 |
| CE Automation Ltd. | Professional & scientific | 2010 |
| CE Tyres Ltd | Manufacturing | 2025 |
| Celebrity Wheels Multi-Biz Limited | Transport & logistics | 2025 |
| Cellar Miser Limited | Manufacturing | 1999 |
| Celox Medical Limited | Manufacturing | 2017 |
| Celox PPH Limited | Manufacturing | 2022 |
| Central Bible Hammond Trust Limited | Information & communication | 1962 |
| Centreline Construction Ltd | Construction | 2017 |
| Century Property Limited | Real estate | 2025 |