| Coreco Lifetime Limited | Southend-On-Sea | 2009 |
| Corecraft Academics Ltd | Ipswich | 2026 |
| Coreen Eastes Consulting Limited | Fair Oak | 2014 |
| Corefiling Employee Benefits Limited | Oxford | 2008 |
| Corefresh Bar and Grill Limited | Canvey Island | 2015 |
| Corefruit Limited | Canvey Island | 2014 |
| Coreglobal for International Services Limited | Manchester | 2026 |
| Coreglobal for International Trading & Services Limited | Manchester | 2026 |
| Corehealth Dynamics Ltd | Edinburgh | 2025 |
| Corelogic Innovate Ltd | London | 2026 |
| Corelya Nexiron Systems Ltd | Manchester | 2026 |
| Corelyn for International Services Limited | Manchester | 2026 |
| Corelytix Limited | London | 2024 |
| Coremo Ocmea Limited | Chelmsford | 1996 |
| Coren Ltd | Prenton | 2021 |
| Corene Clothing Ltd | Grays | 2024 |
| Corepoint Property Services Ltd | Dagenham | 2022 |
| Coretek Technology Company Limited | Beckenham | 2019 |
| Coreton Limited | London | 1977 |
| Coretrol Limited | Sheffield | 2010 |
| Corevia Axentra Solutions Ltd | Manchester | 2026 |
| Corexa Ironyx Systems Ltd | Manchester | 2026 |
| Corexa Valnix Trading Ltd | Manchester | 2026 |
| COREY800 Ltd | Newtownabbey | 2023 |
| Corfe Castle Brewery Limited | Swanage | 2006 |
| Corgi Couriers Ltd | Thatcham | 2025 |
| Corgi Digital Ltd | Thatcham | 2025 |
| Corgi Realisations Limited | Co.Durham | 1988 |
| Coriander Close 1967 Limited | Felixstowe | 2015 |
| Corina House RTM Company Limited | Purley | 2025 |
| Corinium Properties Limited | Manchester | 1964 |
| Corinman Property Management Limited | Birmingham | 1999 |
| Corinthian Investments Limited | London | 2013 |
| CORINTHIAN11 Ltd | Poole | 2025 |
| Cork and Feathers Ltd | Hornchurch | 2023 |
| Cork Street Brokers Limited | London | 2015 |
| Corker Clifford (Holdings) Limited | London | 2014 |
| Corkers Limited | Northampton | 2026 |
| Corkside Limited | Warwick | 2017 |
| Corley Moor Garage Limited | Coventry | 1980 |
| Cormac Solutions Limited | Redruth | 2023 |
| Cormoran Strike Limited | London | 2014 |
| Corn Dolly Home Bakery Limited-The | 10C Marcus Square Hill Street | 1995 |
| Corn Leaze Pigs Ltd | Bristol | 2015 |
| Cornbury Developments Ltd | Salford | 2014 |
| Corneille Ltd | Coventry | 2014 |
| Cornelia James Neckwear Limited | Bedworth | 1929 |
| Cornell Bruxham Limited | Farnborough | 2002 |
| Corner Bikes Limited | Glasgow | 2016 |
| Corner Farm Place Residents Company Limited | Hemel Hempstead | 2008 |
| Corner Pillars Ltd | Stanford-Le-Hope | 2022 |
| Corner Star Ltd | London | 2025 |
| Corner Stone Record Label Ltd | London | 2023 |
| Cornero Limited | West Midlands | 2023 |
| Cornershopvending Ltd | Rochester | 2024 |
| Cornersof Limited | Leeds | 2011 |
| Cornerstone (Fairhaven) Limited | Knebworth | 2015 |
| Cornerstone (ST Neots) Limited | St. Neots | 2010 |
| Cornerstone Care and Education Ltd | Bristol | 2021 |
| Cornerstone Childcare Ltd | Stourbridge | 2023 |
| Cornerstone Cleaning Ltd | Liverpool | 2024 |
| Cornerstone Consulting Solutions Ltd | Kirkby In Ashfield | 2011 |
| Cornerstone Developments (IOW) Limited | Ventnor | 2016 |
| Cornerstone Eco Tourism Limited | St. Albans | 2004 |
| Cornerstone Facility Service Management Ltd | Harlow | 2023 |
| Cornerstone General Trading Limited | Manchester | 2026 |
| Cornerstone Glasgow Limited | Dundee | 2000 |
| Cornerstone Global Associates Ltd | London | 2009 |
| Cornerstone Golf Advisory Limited | Preston | 2011 |
| Cornerstone Grgeot Limited | Dartford | 2024 |
| Cornerstone House Management Limited | Portsmouth | 2016 |
| Cornerstone Publishing Ltd | Kent | 2009 |
| Cornerstone Structures Ltd | Doncaster | 2026 |
| Corney Developments Limited | London | 2015 |
| Cornfield Close Management Ltd | Folkestone | 2019 |
| Cornhill Company Formations Limited | London | 2000 |
| Cornhill Estates Limited | | 1934 |
| Cornhill Legal Services Limited | London | 2002 |
| Cornhill Media Management Limited | London | 2003 |
| Cornhill Nominees Limited | London | 2000 |
| Cornhill Project Management Limited | London | 2000 |
| Cornhill Trading Company Limited | London | 2015 |
| Cornhill Visas Limited | London | 2003 |
| Cornice Designs Ltd | Rotherham | 2014 |
| Cornish Community Market CIC | Wadebridge | 2023 |
| Cornish Cottage Holidays Limited | Altrincham | 2003 |
| Cornish Crab and Lobster Company Limited | Mevagissey | 2017 |
| Cornish Crab and Lobster Holidays Limited | Mevagissey | 2017 |
| Cornish Farm Foods Limited | Mevagissey | 2003 |
| Cornish Heritage Builders Limited | Marazion | 2026 |
| Cornish Payroll Solutions Ltd | Bodmin | 2003 |
| Cornish Road Transport and Haulage Ltd | Penryn | 2021 |
| Cornish Rural Retreats Limited | Newquay | 2024 |
| Cornish Seafood Company Limited | Newton Abbot | 2006 |
| Cornish Skips Ltd | Penryn | 2021 |
| Cornmill Property Management Company Limited - the | Co Derry | 2007 |
| Cornstead Ltd | Exeter | 2024 |
| Cornwall Birdwatching Tours Limited | London | 2020 |
| Cornwall Business Recovery Ltd | Falmouth | 2011 |
| Cornwall Development Company Ltd | Truro | 1998 |