| Coler Supply Ltd | Tamworth | 2020 |
| Coleraine Developments Limited | Co.Londonderry | 1971 |
| Coleridge Road 1965 Limited | Rotherham | 2013 |
| Colesco Ltd | Bury St. Edmunds | 2020 |
| Coleshill Bromwich Assets (NO 2) Limited | Manchester | 2016 |
| Coleshill Bromwich Assets Limited | Manchester | 2016 |
| Coleshill Flaine Limited | Luton | 2002 |
| Colette Skelton Hair Design & Education Ltd | Newtownabbey | 2016 |
| Colhar Medical Limited | Sutton Coldfield | 2015 |
| Colie Ltd | Hayes | 2020 |
| Colin Alexander Limited | Leigh-On-Sea | 2023 |
| Colin Barrett Ltd | Halesowen | 2023 |
| Colin Caley Limited | Dover | 2024 |
| Colin Francis Warburg | Southampton | 2024 |
| Colin Fulton Ltd | Inverness | 2023 |
| Colin Hart Limited | London | 2004 |
| Colin Hellmuth Investments Limited | Maidenhead | 2015 |
| Colin Howe Limited | Torquay | 2021 |
| Colin James Clarke Limited | Magherafelt | 2022 |
| Colin James Davies Ltd | Blackpool | 2024 |
| Colin James O Neill Ltd | Belfast | 2022 |
| Colin Johnson's Farms Limited | Scunthorpe | 1962 |
| Colin Jonathan Perrin Limited | Wolverhampton | 2022 |
| Colin Malcolm Illingworth-Kay Limited | Castle Cary | 2024 |
| Colin Mcrae Motorsport Limited | Glasgow | 2016 |
| Colin Morgan T/A Cardiff Mortgage Centre Ltd | Cardiff | 2016 |
| Colin Neil Craig Limited | Widnes | 2026 |
| Colin Read Consulting Ltd | Dartford | 2022 |
| Colin Swansborough Limited | East Sussex | 2001 |
| Colin Willis Limited | London | 2025 |
| Colina 900 Ltd | Bristol | 2024 |
| Colinton Limited | Edinburgh | 2002 |
| Colinvale House Management Company Limited | Ballyclare | 2004 |
| Coliseum Coaches Limited | Birmingham | 1963 |
| Coliston Passage Residents Company Limited | London | 2019 |
| Coll Community Development Trust Ltd | Stornoway | 2019 |
| Collaborate Architectural Design Limited | Cheltenham | 2022 |
| Collaboration for Unified Future | London | 2018 |
| Collaborative Export Solutions Limited | Isle Of Arran | 2017 |
| Collage Designs Limited | Dewsbury | 1991 |
| Collanade Ventures Ltd | Wakefield | 2024 |
| Collard Parsons and Company Limited | London | 2000 |
| Collateral Ltd | Brierley Hill | 2012 |
| Collect OR Deliver Ltd | Newcastle | 2020 |
| Collect UK Ltd | Cardiff | 2016 |
| Collectajoy Ltd | London | 2019 |
| Collectaroo Limited | Banbury | 2019 |
| Collectica Limited | London | 1998 |
| Collective 26 Limited | London | 2026 |
| Collective Chemical Company Limited | Bristol | 1996 |
| Collective Group Property Ltd | Folkestone | 2020 |
| Collective Law Limited | Wells | 1989 |
| Collectors Prints Limited | Warwick | 2004 |
| Collectrium Limited | London | 2006 |
| College 1957 Limited | Trowbridge | 2013 |
| College Central Management Company Limited | Ballyclare | 2006 |
| College Company Services Limited | Ruislip | 2019 |
| College Driving School Ltd | Romford | 2025 |
| College Mews Apartments Limited | Belfast | 2003 |
| College of Marketing Limited(The) | Berkshire | 1978 |
| College of Medicine and Dentistry Limited | Warwick | 2013 |
| College Oriental Limited | St. Austell | 2014 |
| College Park Management Company Limited | Belfast | 2008 |
| College Plantation Strip Company Limited | Princes Risborough | 2011 |
| College Road Services Limited | Beckenham | 2020 |
| College Sewing Machine Parts Holdings Limited | Bury | 2016 |
| College Square North Management Company Limited | Belfast | 2004 |
| Coller IP Capital Limited | London | 2007 |
| Colley Raine & Associates Ltd | Tunbridge Wells | 2021 |
| Collie Consultancy Ltd | Coalville | 2020 |
| Colliers Arms Limited | Bridgend | 2018 |
| Colliers of Birmingham Limited | Stratford-Upon-Avon | 1969 |
| Colliers of Sutton Coldfield Limited | Stratford-Upon-Avon | 1986 |
| Collin Brothers Limited | Leics | 1981 |
| Collin Place (Carlisle) Limited | Nr Carlisle | 1989 |
| Collingwood the County Jewellers Limited | Birmingham | 1988 |
| Collins & Jackson Consulting Ltd | London | 2014 |
| Collins (Pontefract) Limited | Leeds | 1985 |
| Collins Avenue 10A Ltd. | London | 2018 |
| Collins Avenue 12C Ltd. | London | 2018 |
| Collins Motors Ltd | Pinner | 2003 |
| Collins Pension Actuaries Limited | Bewdley | 2011 |
| Collins Properties (UK) Limited | Wirral | 2004 |
| Collins Social Work Solutions Ltd | Skegness | 2012 |
| Collins, Dryland & Thorowgood Limited | Reading | 2015 |
| Collinson & Grainger Holdings Limited | Dudley | 2009 |
| Collinson Company Secretarial Services Limited | London | 2024 |
| Collinson Fencing Limited | Basildon | 2013 |
| Collinton Ltd | Kilwinning | 2012 |
| Collinward Wholesale Limited | Newtownabbey | 1985 |
| Colloni Limited | Manchester | 2020 |
| Collstar Ltd | London | 2021 |
| Collyer Adjusters Ltd. | Gerrards Cross | 1998 |
| Collyer and Mcbride Funeral Directors Ltd | Smethwick | 2024 |
| Collyer Claims Services Limited | Gerrards Cross | 1994 |
| Collyer Motor Sport Limited | Aylesbury | 2024 |
| Collyhurst Assets (NO 2) Ltd | Manchester | 2010 |
| Collyhurst Assets Limited | Manchester | 2010 |
| Collyville Ltd | Lancashire | 2007 |
| Colm's Amusements Limited | Londonderry | 2019 |