| Cottage Life Limited | Milnthorpe | 2012 |
| Cottage Rest Homes Limited | Whitley Bay | 1979 |
| Cottages in Ireland Limited | Belfast | 2005 |
| Cottages in Northumberland Limited | Bideford | 2007 |
| Cottages in the Lakes Limited | Great Yarmouth | 2018 |
| Cottages on the Coast Limited | Barnstaple | 2023 |
| Cottam 1966 Limited | Sheffield | 2013 |
| Cottams Tiles Limited | St. Helens | 2010 |
| Cotter Solutions Limited | Uckfield | 2025 |
| Cotterhill (EJB) Limited | Darlington | 2024 |
| Cotterhill (GM) Limited | Darlington | 2024 |
| Cotterhill (NLM) Limited | Darlington | 2024 |
| Cotterhill (WM) Limited | Darlington | 2024 |
| Cottley Trading Company Ltd | Shipley | 2021 |
| Cotton & SON Limited | Bridport | 2000 |
| Cotton Barons Limited | Newbury | 2020 |
| Cotton Caviar Ltd | London | 2024 |
| Cotton Hall Barns Management Company Limited | Knutsford | 2005 |
| Cotton Homes Limited | Knutsford | 2004 |
| Cotton Mews Management Company Limited | Leicester | 2010 |
| Cotton Mill Aparts Management Ltd | Sheffield | 2022 |
| Cotton Mouse Limited | Manchester | 2008 |
| Cotton's Properties Limited | Spalding | 2017 |
| Cottonmouth Ltd | London | 2024 |
| Cottons Rugby Office Nominees Limited | Rugby | 2022 |
| Cottonsoft Baby Ltd | Taunton | 2008 |
| Cottonsoft Ltd | Taunton | 2000 |
| Cottrell Capital Ltd | Cardiff | 2015 |
| Cottrell Gardens Management Company Limited | London | 2019 |
| Cottsway Group Treasury PLC | Witney | 2015 |
| Cotur Ltd | London | 2024 |
| Coucoo Ltd | London | 2021 |
| Cougar Management Foundation | Cambridge | 2022 |
| Cougar Pumps Ltd | Berkhamsted | 2003 |
| Coulin Estate Limited | Perth | 2026 |
| Coully’S Construction Limited | Elgin | 2020 |
| Coulson Court Freehold Limited | Berkhamsted | 2014 |
| Coulson Pritchard Associates Ltd. | Manchester | 1993 |
| Coulter Realty Cafes Limited | Craigavon | 2017 |
| Coulton Export Ltd | Christchurch | 2014 |
| Coulton Limited | Salford | 1996 |
| Counsell Advisory Limited | Wetherby | 2016 |
| Counselling for Kids Limited | London | 2025 |
| Counselrock Partners Ltd | London | 2010 |
| Count on US Traffic Limited | Boroughbridge | 2004 |
| Countability Ltd | London | 2025 |
| Countdown Property Developments Limited | Beaconsfield | 1973 |
| Countec Europe Ltd. | Hampshire | 2003 |
| Counter Inst. Ltd | London | 2017 |
| Counterpoint Dance Company Ltd | London | 2013 |
| Countersales UK Limited | Rushden | 2002 |
| Counties Crematorium Limited | Sutton Coldfield | 1980 |
| Counting House Limited | London | 2015 |
| Counting House Services Limited | Hertford | 1996 |
| Countoak Limited | Spennymoor | 1987 |
| Countright Valuers Limited | Welwyn Garden City | 2020 |
| Countrole Limited | Manchester | 1987 |
| Country & Stable Limited | Olney | 2013 |
| Country and Equine Limited | Seaham | 2021 |
| Country Artists Limited | Carlisle | 2007 |
| Country Buildings Limited | Herefordshire | 2003 |
| Country Casuals Holdings Limited | Carlisle | 2016 |
| Country Casuals Limited | Carlisle | 2016 |
| Country Chiropractic Limited | Lowestoft | 2017 |
| Country Cookers Ltd | St Columb | 2022 |
| Country Estates (Berkshire) Limited | Reading | 1987 |
| Country Estates Newco Limited | Reading | 2008 |
| Country Hardwood Orangeries & Conservatories Ltd | Milton Keynes | 2021 |
| Country House Magazine Limited | London | 2008 |
| Country Leisure Ltd | Liverpool | 2023 |
| Country Life Properties Limited | Cheltenham | 2018 |
| Country Midco 2 Limited | Bideford | 2018 |
| Country Pursuits Limited | Ashford | 2021 |
| Country Style Ventures Limited | Leeds | 2021 |
| Country Topco Limited | Bideford | 2018 |
| Country UK Limited | Bedford | 2004 |
| Country Valley Meats Limited | Stockton-On-Tees | 1999 |
| Countrylife Boutique Limited | Ormskirk | 2014 |
| Countryman Foods Limited | Wimborne | 2018 |
| Countryman's Choice Limited | Taunton | 2006 |
| Countrymoos Ltd | Chippenham | 2026 |
| Countryside (UK) Limited | Brentwood | 2002 |
| Countryside Crenns Limited | London | 2003 |
| Countryside Developments Limited | West Malling | 1968 |
| Countryside Greens Limited | Wrexham | 1996 |
| Countryside Homeowners WG Management Company Limited | Arundel | 2021 |
| Countryside Properties (Commercial) Limited | Kent | 1989 |
| Countryside Properties (London & Thames Gateway) Limited | Kent | 1968 |
| Countryside Properties (Northern) Limited | Kent | 1992 |
| Countryside Properties (Salford Quays) Limited | Brentwood | 2002 |
| Countryside Property Limited | Richmond | 2020 |
| Countryside Residential (South Thames) Limited | Brentwood | 1992 |
| Countryside Residential (South West) Limited | Brentwood | 1992 |
| Countryside Residential Limited | Kent | 1989 |
| Countryside Retreat (NE) Limited | Belford | 2026 |
| Countryside Seven Limited | Brentwood | 2002 |
| Countrystyle Energy Ltd. | Ashford | 2008 |
| Countrystyle Recycling (East) Limited | Sittingbourne | 2004 |
| Countrywide Business Transfer Consultants Limited | Louth | 1989 |
| Countrywide Design (Petersfield) Limited | Slough | 2023 |