| Cabsloc Ltd | Glasgow | 2026 |
| Cabtax Limited | St. Albans | 2026 |
| Caburn Capital Limited | Brighton | 2026 |
| Caburn Group Limited | Watford | 2020 |
| Caburn Investments Ltd | Brighton | 2026 |
| CAC Enterprise Group Ltd | London | 2022 |
| CAC Services Ltd | Chesham | 2023 |
| Caceis UK Nominees Limited | London | 2018 |
| Caceis UK Trustee and Depositary Services Ltd | London | 2019 |
| Cacek Ltd | Canterbury | 2025 |
| Cache Bidco Limited | London | 2026 |
| Cache Midco Limited | London | 2026 |
| Cachia Family Properties Limited | Benfleet | 2020 |
| Caci Holdings Limited | London | 2023 |
| Caco Services Ltd | London | 2025 |
| Cacon Ltd | Liverpool | 2021 |
| Cacos Limited | Ardboe | 2020 |
| Cacow Limited | Knutsford | 2012 |
| Cacti Capital Ltd | London | 2024 |
| Cactus Financial Planning Ltd | Cheltenham | 2015 |
| Cactus Mortgages Limited | Worcester | 2019 |
| Cactus Pick Ltd | Edinburgh | 2026 |
| Cactus Self Storage Holdings Limited | London | 2025 |
| Cactus UK Holding Ltd | Bristol | 2025 |
| CAD 21 Holdings Limited | Cramlington | 2016 |
| CAD Brokers Limited | Weybridge | 2004 |
| CAD Cammish Ltd | Bristol | 2011 |
| CAD Group Holdings Ltd | Wednesbury | 2026 |
| CAD Holdings North East Limited | United Kingdom | 2018 |
| CAD Limited | London | 2023 |
| CAD21 Group Ltd | Cramlington | 2024 |
| Cadastra Limited | St. Albans | 1987 |
| Cadboll Wealth Ltd | Glasgow | 2025 |
| Cadbury Ventures Limited | Lancing | 2023 |
| Caddick (JPC Developments) Limited | West Yorkshire | 2001 |
| Caddie Consult Limited | London | 2019 |
| Caddington Holdings Ltd | Luton | 2026 |
| Caddis Group Ltd | Nr Dereham | 2015 |
| Caddy Holdings Bridgend Limited | Bridgend | 2013 |
| Cade Group Limited | Waterlooville | 2015 |
| Cade Hill Holdings Limited | Elsworth | 2024 |
| Cade Hill Limited | Cambridge | 2021 |
| Cade Mckeever Ltd | Swindon | 2002 |
| Cade RD Ltd | Harrow | 2024 |
| Cadeleigh Holdco 1 Limited | Tiverton | 2024 |
| Cadeleigh Holdco 2 Limited | Tiverton | 2024 |
| Cadeler Holdings Limited | Norwich | 2012 |
| Cadeler International Limited | Norwich | 2012 |
| Cadeler Limited | Norwich | 2025 |
| Cadell Capital Limited | Newport | 2019 |
| Cadell Holdings Limited | Newport | 2019 |
| Cadell Investments Limited | Newport | 2019 |
| Cadells Leisure Limited | Taunton | 2004 |
| Cadena Investments Limited | Cardiff | 2024 |
| Cadence Content Limited | Oxted | 2025 |
| Cadence Equity Partners Limited | London | 2016 |
| Cadence Finance Limited | Kingston Upon Thames | 2012 |
| Cadence Financial Planning Limited | Leeds | 2022 |
| Cadence Group Holdings Limited | Birmingham | 2024 |
| Cadence Group Limited | Colchester | 2025 |
| Cadence Holdco Limited | London | 2020 |
| Cadence Holdings Ltd | London | 2026 |
| Cadence Midco Limited | London | 2020 |
| Cadence Partners Ltd | London | 2025 |
| Cadence Topco Limited | London | 2020 |
| Cadenza Advisory Limited | London | 2025 |
| Cadexra Holdings Ltd | Worthing | 2024 |
| Cadgrange Holdings Ltd | Bootle | 2022 |
| Cadian Holdings Ltd | Dungannon | 2024 |
| Cadillac Fairview Europe RE Limited | Fareham | 2020 |
| Cadis Holdings Limited | Torpoint | 2022 |
| Cadis MGA Limited | Torpoint | 2020 |
| Cadisch Holdings Limited | Hatfield | 2025 |
| Cadismark Securities Limited | Rushden | 1991 |
| Cadiva Holdings UK Limited | Basingstoke | 2022 |
| Cadlam Wealth Limited | Leeds | 2023 |
| Cadm Holdings Limited | Brighton | 2019 |
| Cadman (Lancashire) Holdings Limited | Lancaster | 2019 |
| Cadman 2018 Ltd | Colchester | 2018 |
| Cadman Group Limited | Shifnal | 2026 |
| Cadman Holdings (Manchester) Limited | Sale, Manchester | 2021 |
| Cadmus Distribution Group Holdings Limited | Chelmsford | 2020 |
| Cadmus Products Limited | Chelmsford | 2024 |
| Cadmvs Holdings Ltd | Shrewsbury | 2024 |
| Cadogan Berkley Ltd | Leeds | 2020 |
| Cadogan Equity Partners Limited | London | 2025 |
| Cadogan Group Holdings Limited | London | 2019 |
| Cadogan Hotels Group Limited | London | 2019 |
| Cadogan Hotels Holding Limited | London | 2019 |
| Cadogan London Limited | London | 2022 |
| Cadogan Settled Estates Holdings Limited | London | 2019 |
| Cadogan Wilson Limited | Tadworth | 2001 |
| Cador Bidco Ltd | London | 2026 |
| Cadre Advisory Holdings Limited | Penarth | 2014 |
| Cads Investments | Leeds | 2014 |
| Cads Land | Leeds | 2016 |
| Caduceus Estates Limited | London | 2000 |
| Caduceus Holdings Ltd. | London | 2022 |
| Cadwmigei Investment Company | Birkenhead | 2022 |
| CAE (Peterborough) Limited | Barnsley | 2017 |