| Cotswold Hunt Ltd | Cirencester | 2008 |
| Cotswold K9 & Equine Care Ltd | Redditch | 2020 |
| Cotswold Lakes Lavender Limited | Cirencester | 2023 |
| Cotswold Lakes Trading Limited | Cirencester | 2007 |
| Cotswold Meat Direct Limited | Stroud | 2020 |
| Cotswold NUT Company Limited | Moreton-In-Marsh | 2023 |
| Cotswold Organic Livestock Limited | Oxon | 2006 |
| Cotswold Rifle Range Limited | Cheltenham | 2022 |
| Cotswold Tree Surgeons Limited | Marlborough | 2019 |
| Cotswold Trees Ltd | Coventry | 2019 |
| Cotswold Valley One Loft Race Limited | Dursley | 2021 |
| Cotswolds Equestrian Ltd | Didcot | 2024 |
| Cotswolds Fungi Ltd | Chipping Norton | 2023 |
| Cottage Boarding Kennels Limited | Birmingham | 2025 |
| Cottage Farm (Breaston) Limited | Derbys | 1979 |
| Cottage Farm (Kirby) Ltd | Melton Mowbray | 2013 |
| Cottage Farm Seaforde Limited | Downpatrick | 2019 |
| Cottage Farms (Horsmonden) Limited | Tonbridge | 1962 |
| Cottage Farms Limited | Orpington | 2008 |
| Cottam Farming Company Limited | Lincoln | 2022 |
| Cottams Farm Ltd | Hesketh Bank | 2018 |
| Cottenham Farm Ltd | Chigwell | 2023 |
| Cottesbrooke Farming Company Limited | London | 1997 |
| Cottingham Equestrian Limited | Cottingham | 2025 |
| Cottingham Equestrian Services Limited | Cottingham | 2022 |
| Cottisford Farms Limited | Bicester | 1997 |
| Cotton Abbotts Ltd | Chester | 2023 |
| Cotton Hall Ltd | Crewe | 2025 |
| Cotton Tails Farm Ltd | Donaghadee | 2024 |
| Cottonmill Farm Limited | Uttoxeter | 2008 |
| Cottons Creche Limited | Narberth | 2025 |
| Cottons DDC Ltd | Crewe | 2025 |
| Cotwall Farm Limited | Telford | 2013 |
| Couches NOT Kennels Ltd | Liverpool | 2019 |
| Coul Enterprises Holdings Ltd | Dornoch | 2026 |
| Coulby Newham Garden Services Ltd | Middlesbrough | 2023 |
| Coulibaly Trading Compagny. Ltd | Cambridge | 2026 |
| Coull Forestry Limited | London | 2020 |
| Coull Trees Ltd | Inverurie | 2021 |
| Coulter Farms Ltd | Fivemiletown | 2018 |
| Coulters Limited | Ipswich | 2006 |
| Council Farm Limited | Cambridge | 2025 |
| Countless Corals Ltd | Havant | 2025 |
| Country Agri Limited | Lisburn | 2013 |
| Country Barks Ltd | Penarth | 2026 |
| Country Buckets and Blooms Ltd | Stafford | 2026 |
| Country Care Anglia Limited | Woodbridge | 1989 |
| Country Cat Sitters Limited | Melton Mowbray | 2026 |
| Country Cures (Pest Control) Limited | Winchester | 1998 |
| Country Estate Supper Club Ltd | Truro | 2024 |
| Country Farm Stud Ltd | Poulton-Le-Fylde | 2010 |
| Country Firewood Ltd | Stowmarket | 2018 |
| Country First (SE) Ltd | Maidstone | 2024 |
| Country Fresh Broilers Limited | Oswestry | 1999 |
| Country Fresh Pullets Limited | Shropshire | 1964 |
| Country Garden Plant Sales Limited | Swanage | 2002 |
| Country Gardens & Woodlands Limited | Oswestry | 2006 |
| Country Haylage Ltd | Bristol | 2016 |
| Country Homes (Lancashire) Limited | Preston | 2002 |
| Country Pest Solutions Limited | St. Helens | 2024 |
| Country Pride Plants Limited | Prees Whitchurch | 1990 |
| Country Style Dachshunds Ltd | Saffron Walden | 2020 |
| Country Tree Care Ltd | Swanley | 2022 |
| Country Wide Reliability Ltd | Crediton | 2019 |
| Countryside Consulting Ltd | Bridport | 2011 |
| Countryside Crop Support Ltd | Teddington | 2025 |
| Countryside Farm and Equine Ltd | Reading | 2012 |
| Countryside Logs (GF) Ltd | Petersfield | 2022 |
| Countryside Services (Lincs) Limited | Doncaster | 2018 |
| Countryside Solutions Limited | Winchester | 1999 |
| Countryside Training & Tree Management Ltd | Stafford | 2003 |
| Countryside Tree Surgeons Limited | Bournemouth | 2005 |
| Countryside Trees Limited | Stowmarket | 2019 |
| Countrywide Birmingham North Ltd | Shrewsbury | 2023 |
| Countrywide Garden Maintenance Services Limited | Brackley | 1986 |
| Countrywide Manchester Limited | Warrington | 2018 |
| Countrywide S E G M Ltd | Hitchin | 2019 |
| Countrywide Stockport Limited | Warrington | 2018 |
| County Farm Limited | Malton | 2009 |
| County Game Farms Limited | Lewes | 2003 |
| County Horse Fine Feed Limited | Kidderminster | 2004 |
| County Park Nursery Ltd | Liphook | 2012 |
| County Tree Care Limited | Southampton | 2019 |
| County Turf Farm Ltd | Scunthorpe | 2020 |
| County Turf Limited | Scunthorpe | 1999 |
| County Turf Sports Ltd | Scunthorpe | 2020 |
| Countycrops Limited | Cambridge | 1993 |
| Coupar Grange Fishings Limited | Forfar | 2009 |
| Coupe Farms Limited | Bolton | 1996 |
| Couper Seafoods Limited | Aberdeen | 1987 |
| Cour Ltd | Campbeltown | 2014 |
| Courage Copse Creatives CIC | Umberleigh | 2020 |
| Courage Fishing Limited | Montrose | 2023 |
| Courage to Grow Counselling Therapy Services Limited | Dewsbury | 2023 |
| Courageous Fishing (Whalsay) Ltd | Lerwick | 2014 |
| Courierworks Ltd | Chatham | 2025 |
| Court & SON Limited | Redhill | 2017 |
| Court Farm Animals Limited | Hawkinge, Folkestone | 2010 |
| Court Farm Chickens Limited | Hereford | 2010 |
| Court Farm Limited | Straight Mile Road Rotherwas | 2005 |