| Chute Holdings Limited | Croydon | 2026 |
| Chute Investments Limited | Andover | 2019 |
| Chutzpah Ltd | Okehampton | 2003 |
| Chvc Holdings Limited | Witney | 2025 |
| CHW Accounting Limited | Bolton | 2012 |
| CHW Holdings Ltd | Exeter | 2025 |
| CHW Limited | London | 2018 |
| CHW Wealth Management Limited | Hertford | 2023 |
| Chwp Limited | Stockton-On-Tees | 2026 |
| CHX Asset Management Limited | London | 2025 |
| CHX Holdings Limited | Plympton | 2017 |
| CHX Ventures Limited | Welling | 2025 |
| Chxco Holdings Limited | Birmingham | 2021 |
| CHY Kernow Holdings Limited | St. Austell | 2025 |
| CHY Porth Mortgage & Protection Planning Ltd | Redruth | 2023 |
| Chya Capital Ltd | Glasgow | 2025 |
| Chyan Group Ltd | London | 2026 |
| Chynge UK Ltd | London | 2018 |
| Château Juste Holdings UK Ltd | Bradford | 2026 |
| CI ABF I Northwich Holdco Ltd | Rotherham | 2024 |
| CI Advisers Limited | Swadlincote | 2022 |
| CI Aminth Holdco Ltd | Rotherham | 2021 |
| CI Brite (UK) Holdings Limited | London | 2015 |
| CI Brite Limited | London | 2015 |
| CI Consultancy Ltd | Maidenhead | 2012 |
| CI Consulting Services Ltd | Bishops Waltham | 2024 |
| CI Cronos Holdco Ltd | Rotherham | 2022 |
| CI Exchangeco Limited | London | 2019 |
| CI FCL Funding 1 Limited | London | 2018 |
| CI FCL Funding 2 Holding Limited | London | 2018 |
| CI FCL Funding 2 PLC | London | 2018 |
| CI FCL Investor GP Limited | London | 2018 |
| CI Financial Holdings Ltd. | Bristol | 2025 |
| CI GGL Limited | London | 2019 |
| CI III Lostock EFW Holding Limited | Rotherham | 2017 |
| CI III Lostock EFW Limited | Rotherham | 2017 |
| CI IV Arrow Holdco Ltd | Rotherham | 2021 |
| CI IV Highland HOLDCO1 Ltd | Edinburgh | 2020 |
| CI IV Highland HOLDCO2 Ltd | Edinburgh | 2020 |
| CI IV RYE Holdco Ltd | Rotherham | 2022 |
| CI IV RYE Lender Ltd | Rotherham | 2022 |
| CI IV Scotwind Holdco Ltd | Edinburgh | 2022 |
| CI IV Slough HOLDCO1 Ltd | Rotherham | 2020 |
| CI IV Slough HOLDCO2 Ltd | Rotherham | 2020 |
| CI IV Spring Holdco a Ltd | Rotherham | 2022 |
| CI IV Spring Holdco B Ltd | Rotherham | 2023 |
| CI IV Spring Holdco C Ltd | Rotherham | 2023 |
| CI IV Spring II Holdco a Ltd | Rotherham | 2022 |
| CI Milan Limited | London | 2020 |
| CI Tarchon Holdco Ltd | Rotherham | 2022 |
| CI UK Master Holdings Limited | London | 2025 |
| CI UK Newco Holdings Limited | London | 2025 |
| CI V Dragon Holdco 2 Ltd | Rotherham | 2023 |
| CI V Dragon Holdco Ltd | London | 2021 |
| CI V Dragon Lender Ltd | Rotherham | 2021 |
| CI V Dragon Topco Ltd | Rotherham | 2023 |
| CI V Longbow Topco Limited | Rotherham | 2026 |
| CI V Morecambe Topco Limited | Rotherham | 2023 |
| CI V Pentland Holdco Ltd | Edinburgh | 2024 |
| CI V Porto Topco Limited | Rotherham | 2023 |
| CI V RYE Topco Ltd | Rotherham | 2023 |
| CI V South West Wind Holdco Ltd | Rotherham | 2024 |
| Ci-Elpi UK GP Ltd | London | 2026 |
| Ci-F Zenith UK Holdings Limited | London | 2021 |
| CI3 Ventures Ltd | London | 2025 |
| CIA Consulting Ltd | Caerphilly | 2019 |
| CIA Insurance Services Limited | Rugby | 2001 |
| Ciall Investments Limited | Farnham | 2022 |
| Cian Construction Company Limited | Stockton-On-Tees | 2013 |
| Ciana Capital Advisors Limited | London | 2022 |
| Cianalas Ltd | Isle Of Lewis | 2024 |
| Ciao E-Money Ltd | Folkestone | 2021 |
| Ciao Finance Ltd | Warrington | 2021 |
| Ciara Financials Limited | Berkhamsted | 2018 |
| Ciaran Sheehan Holdings Unlimited | Belfast | 2022 |
| Ciaranciaranciaran Ltd | London | 2022 |
| Ciasen Holdings Limited | Grimsby | 2022 |
| CIB Consultancy Services Ltd | Middlesbrough | 2026 |
| CIB Group UK Limited | Salford | 2021 |
| CIB Holdco Ltd | London | 2025 |
| Ciba Aviation Limited | Warwick | 2016 |
| Ciba Brand Immobiliare Ltd | Cinderford | 2021 |
| Cibanca Finance Group Limited | London | 2019 |
| Cibc World Markets Limited | London | 1992 |
| Cibo Holdings Limited | Bristol | 2023 |
| Ciborium Limited | Battle | 2016 |
| Cibra Capital Ltd | London | 2023 |
| Cibus Bella Limited | London | 2022 |
| Cibus Bingham Limited | London | 2017 |
| Cibus Edward Limited | London | 2022 |
| Cibus Flavour Farm Limited | London | 2022 |
| Cibus Oscar Limited | London | 2020 |
| Cibus PSB Limited | London | 2025 |
| CIC Financial Solutions Limited | Emsworth | 1998 |
| CIC One | Birmingham | 2019 |
| CIC Two | Birmingham | 2019 |
| Cicadas Holdings Ltd | Northampton | 2025 |
| Cicas Group Holding Limited | London | 2025 |
| Ciccio's Group Limited | West Byfleet | 2025 |
| Cicely Speyside Ltd. | Glasgow | 2019 |