| Crystal Shine Bodywork Ltd | Wholesale & retail | 2021 |
| Crystal Shine Motors Ltd | Wholesale & retail | 2012 |
| Crystal Sources Limited | Households | 2025 |
| Crystal Sparkle Hotscher Ltd | Administrative & support | 2025 |
| Crystal Tanning Limited | Other services | 2019 |
| Crystal Trader Ltd | Wholesale & retail | 2021 |
| Crystal Unity Limited | Financial services | 2024 |
| Crystal Vanguard Capital Ltd | Extraterritorial | 2025 |
| Crystal Vape Shop Ltd | Wholesale & retail | 2024 |
| Crystal VUE Ltd | Administrative & support | 2023 |
| Crystal Windows MCR Ltd | Wholesale & retail | 2023 |
| Crystalbark Ltd | Transport & logistics | 2019 |
| Crystalink International Ltd | Wholesale & retail | 2025 |
| Crystalline Builders Ltd | Construction | 2022 |
| Crystalline MAX Limited | Administrative & support | 2025 |
| Crystallines Security Services Ltd | Administrative & support | 2017 |
| Crystalls Services Limited | Information & communication | 2026 |
| Crystals Star Solution Properties Ltd | Real estate | 2023 |
| Crystals Star Solution Services Ltd | Construction | 2023 |
| Crystalshaw Limited | Real estate | 2021 |
| Crystaluk Ltd | Information & communication | 2020 |
| Crystalvision Glazing Ltd | Construction | 2024 |
| Crystalwell Travels Limited | Information & communication | 2026 |
| Crystogen Ltd | Professional & scientific | 2021 |
| Crystomin Ltd | Wholesale & retail | 2023 |
| Crzy Cart Limited | Wholesale & retail | 2024 |
| CS & CH Investments Limited | Other services | 2021 |
| CS 1 Trading Ltd | Real estate | 2024 |
| CS Analytics Limited | Information & communication | 2024 |
| CS Assessing Futures Ltd | Health & social care | 2023 |
| CS Brothers Ltd | Wholesale & retail | 2023 |
| CS Creative Ltd | Manufacturing | 2022 |
| CS Dietetics Limited | Other services | 2020 |
| CS EOT Ltd | Financial services | 2026 |
| CS Fitouts Ltd | Construction | 2018 |
| CS Gardens Limited | Administrative & support | 2017 |
| CS Haslam Group Ltd | Construction | 2016 |
| CS MIA Ltd | Hospitality | 2025 |
| CS Moor Lane Limited | Financial services | 2025 |
| CS Moss Lane East Limited | Construction | 2022 |
| CS Networks Ltd | Information & communication | 2023 |
| CS One Investments Ltd | Construction | 2025 |
| CS Online Service Ltd | Construction | 2025 |
| CS Pressure Wash Ltd | Administrative & support | 2024 |
| CS Products Limited | Other services | 2018 |
| CS Secretaries Limited | Administrative & support | 1999 |
| CS Shannon Road Limited | Financial services | 2025 |
| CS Stocktons Limited | Construction | 2023 |
| CS Wilmslow Road Limited | Financial services | 2024 |
| Cs&E Ltd | Wholesale & retail | 2024 |
| CS1 Holdings (Manchester) Limited | Real estate | 2025 |
| CSA Property Limited | Real estate | 2021 |
| Csas U.K. Ltd | Professional & scientific | 2017 |
| Csbs Trust | Other services | 2015 |
| CSC Courier Services Ltd | Transport & logistics | 2024 |
| CSD (Calton Road) Limited | Construction | 2016 |
| CSD (Harper Road) Limited | Construction | 2017 |
| CSG Acoustics Limited | Professional & scientific | 2012 |
| CSG Audio Visual Limited | Professional & scientific | 2017 |
| CSG Design Ltd | Professional & scientific | 2016 |
| CSG Heating and Plumbing Ltd | Construction | 2021 |
| CSG Invest Ltd | Real estate | 2019 |
| CSG Property Management Ltd | Construction | 2015 |
| CSG Utilities Limited | Professional & scientific | 2012 |
| Csgb Solutions Limited | Wholesale & retail | 2026 |
| Csgk Properties Ltd | Construction | 2026 |
| Csgm Ltd | Households | 2026 |
| CSH Elec Engineering Limited | Construction | 2018 |
| CSHWHCO1 Limited | Professional & scientific | 2022 |
| Csin CIC | Education | 2016 |
| CSJ Investments Ltd | Real estate | 2016 |
| Csjf Ltd | Manufacturing | 2016 |
| CSK Building Contractors Ltd | Construction | 2021 |
| CSL Business Limited | Professional & scientific | 2023 |
| CSL Field Solutions Ltd | Administrative & support | 2023 |
| CSL Shipping Line Ltd | Transport & logistics | 2021 |
| CSM Enforcement Ltd | Administrative & support | 2015 |
| CSM Ingredients UK Limited | Manufacturing | 2020 |
| CSM Motorsports Limited | Professional & scientific | 2013 |
| Csmcr Ltd | Hospitality | 2018 |
| Cspm Services Ltd | Professional & scientific | 2020 |
| CSR Complete Ltd | Professional & scientific | 2026 |
| CSR Link Ltd | Construction | 2022 |
| CSR Meats Limited | Wholesale & retail | 2003 |
| CSS (MCR) Limited | Wholesale & retail | 2024 |
| CST Consulting Limited | Professional & scientific | 2019 |
| CST Financial Solutions Limited | Professional & scientific | 2011 |
| Cstc Ltd | Wholesale & retail | 2025 |
| Cstore Holdings Ltd | Wholesale & retail | 2018 |
| CSV Driving Services Limited | Transport & logistics | 2016 |
| CSV UK Limited | Administrative & support | 2008 |
| Csvc Trading Ltd | Other services | 2026 |
| CSY Healthcare Limited | Health & social care | 2024 |
| CSZ Investments Ltd | Manufacturing | 2025 |
| CT Boxing Ltd | Arts & recreation | 2025 |
| CT Comms Solutions Ltd | Information & communication | 2026 |
| CT Consulting and Business Support Ltd | Professional & scientific | 2020 |
| CT Dent Limited | Extraterritorial | 2022 |
| CT Engineering Limited | Professional & scientific | 2023 |
| CT Motors MCR Ltd | Wholesale & retail | 2024 |