| Casar Investments Limited | Marlow | 2020 |
| Casard Holdings Limited | London | 2022 |
| Casarotto Ramsay & Associates Holdings Ltd | London | 2025 |
| Casarte Limited | East Grinstead | 2007 |
| Casati Holdco (UK) Limited | London | 2023 |
| Casawealth Ltd | Glasgow | 2022 |
| Casby & Co Ltd | Taunton | 2025 |
| Cascade Capital Partners Limited | Bromley | 2020 |
| Cascade Conversions (Holdings) Limited | Newport | 2019 |
| Cascade Enterprise Limited | London | 2025 |
| Cascade Finance Limited | Cardiff | 2006 |
| Cascade Infrastructure Holdings Limited | Manchester | 2025 |
| Cascade Insurance Services Limited | Ashford | 2014 |
| Cascade Investments Limited | London | 2013 |
| Cascade LA Ltd | Liverpool | 2025 |
| Cascade Mortgage Solutions Limited | Glasgow | 2005 |
| Cascade North Limited | Manchester | 2025 |
| Cascade Regional Holdings Limited | London | 2016 |
| Cascade Technologies Holdings Limited | Cumbernauld | 2012 |
| Cascadewm Ltd | Cardiff | 2009 |
| Cascadia Holdings Ltd | London | 2021 |
| Cascriva Holdings Ltd | London | 2018 |
| Cascyra Ltd | Poole | 2026 |
| Casdron Holdings Limited | Alresford | 2016 |
| Case & Case Investments Limited | Shropshire | 2004 |
| Case Advisors Limited | Rickmansworth | 2007 |
| Case Financial Consulting Limited | Marlow | 2018 |
| Case Holdings Ltd | Northampton | 2022 |
| Case Investments Ltd | Liverpool | 2024 |
| Case Matters Group Limited | Hitchin | 2024 |
| Case Partners Ltd | Heathfield | 2025 |
| Case Performance Limited | Broadstone | 2016 |
| Case Topco Limited | Maidenhead | 2014 |
| Case Wealth Management Limited | Ipswich | 2012 |
| Caselii Ltd | London | 2026 |
| Caseman Holdings Ltd | Manchester | 2026 |
| Casemates Trading Limited | London | 2002 |
| Casey Atlantic Group Limited | Blaydon-On-Tyne | 2025 |
| Casey Car and Commercial Ltd | Belfast | 2024 |
| Casey Enterprises Ltd | Carrickfergus | 2024 |
| Casey Financial Planning Limited | Birmingham | 2012 |
| Casey Holdings Limited | Coventry | 2025 |
| Casey James Mortgages Ltd | Herne Bay | 2024 |
| Casey Key Limited | London | 2026 |
| Casey Smith Ltd | Watford | 2023 |
| Caseys Holdings Limited | Sheffield | 2022 |
| Casfs Ltd | Preston | 1989 |
| Cash & Cheque Express Limited | Aylesbury | 2012 |
| Cash 4 Shares Limited | St. Neots | 2023 |
| Cash Advance Solutions Ltd | Liverpool | 2025 |
| Cash Connect Limited | Northampton | 2025 |
| Cash Direct (UK) Limited | Leeds | 2003 |
| Cash Dynamics Holdings Limited | Hainault | 2022 |
| Cash Flow 4 Smes Limited | Birmingham | 2009 |
| Cash Flow Consultancy Ltd | Stockport | 2005 |
| Cash Flow Holdings Ltd | Birmingham | 2021 |
| Cash Flow Providers (UK ) Limited | London | 2018 |
| Cash for Invoices Limited | London | 2017 |
| Cash in Your Brick Ltd | Ilford | 2025 |
| Cash Loans 4 U Limited | Swansea | 2011 |
| Cash Management Expertise Limited | Southall | 2026 |
| Cash Money Global Money Transfer Ltd | Sheffield | 2016 |
| Cash Point Limited | Romford | 2020 |
| Cash Rules Limited | Pembroke | 2024 |
| Cash Shop Ltd | Nottingham | 2004 |
| Cash Tiger Limited | Coventry | 2017 |
| Cash Transfer Company Limited | Eastleigh | 2022 |
| Cash UK Ltd | London | 2025 |
| Cash-Expert Ltd | London | 2017 |
| Cashan Limited | Rochester | 2013 |
| Cashay Finance Limited | Greenford | 2003 |
| Cashbak Ltd | Epsom | 2010 |
| Cashbook Finance Limited | Southend-On-Sea | 2017 |
| Cashbridge Financial Limited | Harlow | 2025 |
| Cashdropped Ltd | London | 2026 |
| Cashel Developments Limited | Dungannon | 1998 |
| Cashel Investments Limited | Enniskillen | 2007 |
| Cashelard Capital Limited | Barnsley | 2011 |
| Cashelbay Homes Ltd | Tamworth | 2023 |
| Cashelton Construction (Holdings) Ltd | Hinckley | 2015 |
| Cashen Ltd | Liverpool | 2025 |
| Cashera Ltd | London | 2023 |
| Cashflex Money Services Ltd | Watford | 2024 |
| Cashflo (UK) Limited | Worksop | 1997 |
| Cashflow Bridge Limited | Buckingham | 2015 |
| Cashflow Enterprises Ltd | Carshalton | 2024 |
| Cashflow Finance for Business UK Limited | Liverpool | 2020 |
| Cashflow Finance Solutions Limited | London | 2013 |
| Cashflow Partners (I.F.) Limited | Glasgow | 1985 |
| Cashflow Premium Funding Limited | London | 1990 |
| Cashflow Solutions UK Ltd | Croydon | 2009 |
| Cashflow Trader Ltd | West Horndon | 2024 |
| Cashflow UK Limited | Liverpool | 2000 |
| Cashflows Europe Limited | London | 2005 |
| Cashflows Holdings Limited | London | 2025 |
| Cashin Green Commercial Services Ltd | Wallasey | 2024 |
| Cashin Green Financial Services Ltd | Wallasey | 2016 |
| Cashless PAY UK Limited | Plymouth | 2023 |
| Cashmaster Leasing Ltd | Chard | 1984 |
| Cashmere Hotels Limited | Leicester | 2022 |