| CK Nails & Beauty Ltd | Bristol | 2017 |
| CK Nails Ltd | London | 2018 |
| CK Quality (Midlands) Limited | Leamington Spa | 2020 |
| CK Skin Clinic Limited | Gloucester | 2022 |
| CK Skin LAB Ltd | Hove | 2025 |
| CK Top 10 Barber Ltd | Llanelli | 2025 |
| CK Turbines Ltd | Kilmarnock | 2025 |
| CK Vehicle Logistics Ltd | Chesterfield | 2013 |
| CK24 Beauty Ltd | Birmingham | 2021 |
| CKA Ltd | Nottingham | 2016 |
| CKB Inc Ltd | London | 2019 |
| CKC Innovations Limited | Rugby | 2011 |
| Ckew Ltd | Bridgend | 2025 |
| Ckfadez Limited | Worcester Park | 2024 |
| CKH Projects Limited | New Eltham | 2016 |
| CKI School of Martial Arts Ltd. | Road Leicester | 2003 |
| CKJ Holdings Limited | Sutton Coldfield | 2020 |
| CKM Beauty & Aesthetics Ltd | Newton Abbot | 2025 |
| CKM Hairdressing Limited | Stockport | 2025 |
| CKM Marketing Ltd | Melton Mowbray | 2019 |
| Ckml PAT Test Ltd | Sunderland | 2013 |
| Ckpweld Services Ltd | Salisbury | 2014 |
| CKR Global Limited | Bedford | 2017 |
| CKR Maintenance Limited | Middleton | 2021 |
| CKR Sales Ltd | St. Asaph | 2019 |
| Ckr.Stylist Ltd | London | 2025 |
| CKS Aesthetics Limited | London | 2026 |
| CKS Developments (IOW) Ltd | Teignmouth | 2013 |
| CKS Developments (Residential) Ltd | Teignmouth | 2011 |
| Ckyc Renovation Limited | Macclesfield | 2022 |
| CL 69 Limited | London | 2023 |
| CL Bartle Consultancy Ltd | Leeds | 2021 |
| CL Beauty Aesthetics Ltd | Walsall | 2021 |
| CL Chambers (Budleigh Salterton) Management Co Ltd | Budleigh Salterton | 2019 |
| CL Fitness and Health Limited | Retford | 2019 |
| CL Hospitality (Scotland) Ltd. | Glasgow | 2019 |
| CL Nail Spa Dundee Limited | Dundee | 2025 |
| CL Pubs Ltd | Glasgow | 2024 |
| CL Reed Architectural Design Limited | Southend On Sea | 2008 |
| CL Remote Sales Ltd | Sawbridgeworth | 2025 |
| CL Shipping London Ltd | Romford | 2026 |
| CL Training (NE) Ltd | Sunderland | 2024 |
| CL Training Academy Ltd | Cannock | 2025 |
| CL YAP Ltd | Farnham | 2018 |
| CL18 Ltd | Troon | 2022 |
| CL75 Hair Team Limited | Cardiff | 2018 |
| CLA Global Brand Limited | London | 2022 |
| CLA Global Limited | London | 2022 |
| CLA Global Services Limited | London | 2022 |
| CLA Solutions Limited | London | 2025 |
| Clacesuite Ltd | Thornton Heath | 2024 |
| Clachertys Holdings Ltd | Saltburn-By-The-Sea | 2025 |
| Clackmannanshire Third Sector Interface Ltd | Alloa | 2011 |
| Clacks First Limited | Alloa | 2008 |
| Clacton Barbershop Ltd | Clacton-On-Sea | 2026 |
| Clacton Carnival Association Ltd | Clacton On Sea | 2004 |
| Clacton DRY Cleaners Ltd | Colchester | 2022 |
| Clacton Funeral Service Ltd | Clacton-On-Sea | 2003 |
| Clacton Hand Car Wash Ltd | Clacton On Sea | 2024 |
| Clacton Pride CIC | Clacton-On-Sea | 2020 |
| Clacton Town Hand Car Wash Ltd | Clacton-On-Sea | 2020 |
| Clacton-On-Sea Golf Club Limited | Essex | 2006 |
| Cladding Solutions Limited | London | 2023 |
| Claes Juhlin Ltd | London | 2021 |
| Claessens International Limited | London | 1978 |
| Claim and FIX Ltd | Lytham St. Annes | 2025 |
| Claim Contact Centre Ltd | Birmingham | 2007 |
| Claim Help Limited | Luton | 2009 |
| Claim Help UK Ltd | Essex | 2022 |
| Claim Time Solution Ltd | Croydon | 2016 |
| Claim Your Rights Limited | Salford | 2024 |
| Claim'N WIN Ltd | London | 2015 |
| Claimax Ltd | London | 2024 |
| Claimhub Alliance Limited | London | 2022 |
| Claimology Ltd | Lytham St.Annes | 2023 |
| Claims Dental UK Limited | Manchester | 2011 |
| Claims East Limited | Colchester | 2025 |
| Claims File Limited | London | 2024 |
| Claims Firm Limited | London | 2019 |
| Claims Group Holdings UK Ltd | Paisley | 2025 |
| Claims Management Association Limited | Derby | 2024 |
| Claims Management Solutions Ltd | Leeds | 2021 |
| Claims Specialists (Shropshire) Limited | Telford | 2011 |
| Claimsite Limited | Glasgow | 2010 |
| Clair Jackson Limited | Derby | 2005 |
| Claire Armstrong Associates Ltd | Alderley Edge | 2019 |
| Claire Bannister Cares Limited | Ruislip | 2025 |
| Claire Bennett Ltd. | Denny | 2002 |
| Claire Benson Hairdressing Limited | Leeds | 2014 |
| Claire Boorman Coaching and Consulting Ltd | Polegate | 2026 |
| Claire C Kelly Beauty Ltd | Gourock | 2018 |
| Claire Chaplin Limited | Derby | 2002 |
| Claire Clarke Enterprises Limited | London | 2016 |
| Claire Connell Wealth Management Ltd | Southend-On-Sea | 2012 |
| Claire Coulthard Art Direction Ltd | London | 2016 |
| Claire Court Management Company Limited | Hants | 1983 |
| Claire Court Residents Association (Hatch END) Limited | 7/15 Greatorex St | 1978 |
| Claire Daley Limited | Nantwich | 1999 |
| Claire Davies Interiors Limited | Chester | 2017 |
| Claire Denton Beauty Ltd | St. Neots | 2021 |