| Crystal Services Care Limited | Real estate | 2017 |
| Crystec (EBT) Limited | Administrative & support | 2013 |
| Crystec Limited | Professional & scientific | 2007 |
| CS Services and Heating Ltd | Other services | 2026 |
| CSB Property & Investments Ltd | Real estate | 2022 |
| Csbe Ltd | Construction | 2020 |
| CSI Electrical Limited | Construction | 2006 |
| Csnw Ltd | Wholesale & retail | 2025 |
| CSS Bradford Ltd | Water & waste | 2026 |
| CSS Certus Services Ltd | Administrative & support | 2025 |
| CSS UK Solutions Ltd | Administrative & support | 2026 |
| Cstb Electrical Limited | Construction | 2024 |
| CSV1 Transport Ltd | Transport & logistics | 2021 |
| CT Properties and Rentals Ltd | Real estate | 2026 |
| CT Rock Ltd | Construction | 2024 |
| Ctech Consultancy Limited | Professional & scientific | 2023 |
| CTH Global Ltd | Wholesale & retail | 2018 |
| CTS Technical Services Limited | Arts & recreation | 1994 |
| Ctyres .Co.Uk. (Online) Limited | Wholesale & retail | 2009 |
| Cube Carpets Ltd | Wholesale & retail | 2020 |
| Cubecumulus Business Ltd | Administrative & support | 2024 |
| Cubic (BFD) Ltd | Construction | 2023 |
| Cubic 24/7 Ltd | Construction | 2024 |
| Cubic Aggregate Ltd | Construction | 2025 |
| Cubic Clothing Ltd | Manufacturing | 2005 |
| Cubic Consultants Limited | Professional & scientific | 2014 |
| Cubic Holdings Ltd | Households | 2024 |
| Cubic Property Group Ltd | Construction | 2021 |
| CUC Properties HMO Management Limited | Energy | 2023 |
| Cuccina Limited | Hospitality | 2009 |
| CUE Ball Bradford Limited | Arts & recreation | 2025 |
| CUE Club Bradford Ltd | Arts & recreation | 2023 |
| CUE Gardens Limited | Arts & recreation | 2013 |
| CUE Haven Snooker Ltd | Arts & recreation | 2024 |
| CUE147LOUNGE Ltd | Arts & recreation | 2022 |
| Cueball Ltd | Arts & recreation | 2021 |
| Cuero London Ltd | Wholesale & retail | 2022 |
| Cullen & Newton Limited | Health & social care | 2012 |
| Cullingworth Burgers Limited | Hospitality | 2025 |
| Cullingworth Chapel Management Company Limited | Households | 2003 |
| Cullingworth Fisheries Limited | Wholesale & retail | 2024 |
| Cullingworth Management Limited | Households | 1999 |
| Cullingworth Pre-School | Education | 2006 |
| Cullingworth Village Hall Management Committee Ltd | Real estate | 2013 |
| Cult Conditioning Ltd | Arts & recreation | 2024 |
| Cult Engineering Limited | Other services | 2013 |
| Cultural Voice Forum CIC | Arts & recreation | 2026 |
| Culture City Radio Ltd | Information & communication | 2023 |
| Culture Squared C.I.C. | Education | 2014 |
| Cumberland House (Bradford) Ltd | Real estate | 2026 |
| Cumbria Driveways Ltd | Administrative & support | 2026 |
| Cumbria EMS Ltd | Real estate | 2024 |
| Cumbria Industrials Limited | Real estate | 2022 |
| Cunningham GAS Ltd | Construction | 2025 |
| CUP of KIN Ltd | Manufacturing | 2023 |
| Cupcake Cravings Ltd | Manufacturing | 2017 |
| Cupra Logistics Ltd | Transport & logistics | 2021 |
| Curamus Care Ltd | Health & social care | 2023 |
| Curate Co. Ltd | Administrative & support | 2024 |
| Curbside Desserts Ltd | Hospitality | 2024 |
| Curious Twist Ltd | Wholesale & retail | 2020 |
| Curl Clinic Group Ltd | Other services | 2025 |
| Curran Homes Ltd | Real estate | 2018 |
| Currans Windows & Conservatories Ltd | Construction | 2014 |
| Current Power Solutions Ltd | Construction | 2025 |
| Currer House Ltd | Real estate | 2024 |
| Curries Chemists (Wyke) Limited | Wholesale & retail | 1944 |
| Curry & Pizza Ltd | Hospitality | 2024 |
| Curry 2 Night Takeaway Ltd | Hospitality | 2019 |
| Curry Cabin Ltd | Hospitality | 2025 |
| Curry Cottage (Bradford) Ltd | Hospitality | 2019 |
| Curry Cottage 5 Star Ltd | Hospitality | 2025 |
| Curry Forever C.I.C. | Education | 2024 |
| Curry Kingdom Limited | Manufacturing | 2020 |
| Curry Leaf House Ltd | Hospitality | 2025 |
| Curti Lifts (UK) Limited | Construction | 1990 |
| Curtis Court Management Company Limited | Real estate | 2016 |
| Curvy Rails Ltd | Wholesale & retail | 2026 |
| Curzon Clarke Property Limited | Real estate | 2000 |
| Cussans Property Ltd | Real estate | 2026 |
| Custom Cabinets York Ltd | Manufacturing | 2021 |
| Custom Design Maintenance & Refurbishment Limited | Construction | 2022 |
| Custom Doors UK Limited | Wholesale & retail | 2024 |
| Custom Lifts Limited | Wholesale & retail | 2022 |
| Custom Prints Solution Limited | Other services | 2019 |
| Custom Remaps UK Ltd | Wholesale & retail | 2017 |
| Custom Signage Direct Ltd | Manufacturing | 2026 |
| Customcoatings Ltd | Construction | 2025 |
| Cutpricedirect Limited | Wholesale & retail | 2014 |
| Cutting Edge Communications PVT. Ltd Ltd | Information & communication | 2012 |
| Cutting Edge Communications UK Ltd | Wholesale & retail | 2024 |
| Cutting Edge Upholstery Ltd | Other services | 2022 |
| CVA Estates Limited | Real estate | 2006 |
| CVA Investments Limited | Real estate | 2007 |
| CVM Services (Northern) Ltd | Transport & logistics | 2010 |
| CW Pints Limited | Hospitality | 2022 |
| CW Vehicle Sourcing Ltd | Wholesale & retail | 2020 |
| Cwatson Ltd | Transport & logistics | 2025 |
| CWC Private Hire Ltd | Transport & logistics | 2019 |
| CWS Sports Management Limited | Manufacturing | 2025 |