| Rusagri Limited | Norfolk | 2006 |
| Ruse Estate Management Limited | Stafford | 2026 |
| Rush Countryside Services Limited | Woodhall Spa | 2011 |
| Rush Farm Limited | Redditch | 2011 |
| Rushall Farms Limited | Co. Derry | 1991 |
| Rushbrook Farms Limited | Ashford | 2012 |
| Rushdown Farm Stud Limited | Reading | 2015 |
| Rushey Green Estates Limited | London | 2007 |
| Rushlake Farms Limited | Sleaford | 1950 |
| Rushmere Corner CIC | Waterlooville | 2022 |
| Rushmere Farm Limited | Waterlooville | 1948 |
| Rushmere Farms (Suffolk) Limited | Lowestoft | 1997 |
| Rushmere Nurseries Limited | Leighton Buzzard | 1955 |
| Rushmoor Country Farm Park Ltd | Louth | 2014 |
| Rushmore Farms Limited | Salisbury | 2015 |
| Rushton's Game Ltd | Wolverhampton | 2016 |
| Rushy Point Limited | Truro | 2024 |
| Ruskington Poultry Farm Ltd | Derby | 2025 |
| Ruskins Tree Surgery Limited | Upminster | 1993 |
| Rusper Farm Limited | Woking | 2019 |
| Russborough Farms | Northallerton | 2012 |
| Russell & SON (Farmers) Limited | Wisbech | 1985 |
| Russell Burgess Limited | Peterborough | 1955 |
| Russell Farming Ltd | Glasgow | 2016 |
| Russell Farms Limited | Warminster | 2009 |
| Russell Price Farm Services Limited | Hereford | 2006 |
| Russell Smith Farms Limited | Herts | 2007 |
| Rustle Ltd | Carlisle | 2024 |
| Ruston Eggs Limited | Driffield | 1998 |
| Rusty Farming Limited | Buxton | 2005 |
| Rusty Rails Farm CIC | Ventnor | 2025 |
| Ruth Barnes and Daughters Limited | Attleborough | 2003 |
| Ruth Carr Racing Ltd | Market Bosworth, Nuneaton | 2012 |
| Ruth Hole Equestrian (Training) Limited | London | 2021 |
| Ruth Hole Equestrian Limited | London | 2022 |
| Ruth King & Sons (Reepham) Limited | Beaconsfield | 1987 |
| Rutherford & Stanton Limited | Leamington Spa | 2018 |
| Rutherford Farming Limited | Berwick Upon Tweed | 1997 |
| Rutherscar Limited | Carlisle | 2020 |
| Ruthies Home Boarding & Daycare Ltd | Whitchurch | 2025 |
| Ruthkay Limited | Peterborough | 1970 |
| Ruthven and Cardean Farms Limited | Edinburgh | 2025 |
| Rutland Biodynamics Limited | Oakham | 2002 |
| Rutland Lavender Ltd | Oakham | 2026 |
| Rutland Poultry Limited | Stamford | 2004 |
| Ruware Group Limited | Peterborough | 2011 |
| Ruxton Enterprises Limited | Hereford | 1998 |
| RV BEE Limited | Blandford Forum | 2020 |
| RVF Animal Farm Ltd | Preston | 2016 |
| RVF Stables Ltd | Preston | 2016 |
| RVH Marine Ltd | Whalsay | 2025 |
| RVK Dog Groomers Ltd | London | 2024 |
| RVK Laptop Repairs Ltd | London | 2023 |
| RW & Co Farm Services Ltd | London | 2025 |
| RW & J Cochrane & Sons Limited | Lockerbie | 1986 |
| RW Agriculture Limited | Quorn | 2013 |
| RW Battershell Ltd | Weymouth | 2002 |
| RW Farming Company Limited | Newark | 2007 |
| RWA Land Ltd | Beccles | 2008 |
| RWC Tittleshall Limited | King'S Lynn | 2012 |
| RWC Trees, Stumps & Logs Ltd | Ilkley | 2015 |
| Rwelfare Ltd | Ilford | 2020 |
| Rwfb Limited | Peterhead | 2006 |
| RWI Marine Limited | Quarff | 2021 |
| RWJ Harvesting Ltd | Dingwall | 2025 |
| RWS Forestry Ltd | Glasgow | 2010 |
| Rwsf Ltd | Corwen | 2016 |
| RWW Farming Limited | Bedale | 2012 |
| RX60 Limited | Hastings | 2013 |
| Ryall House Limited | Worcester | 1990 |
| Ryan Arnel Farriery Limited | Thurlow | 2019 |
| Ryan Arthur Ltd | Shetland | 2019 |
| Ryan Batty Farriery Ltd | York | 2011 |
| Ryan Casey Marine Services Ltd | Weymouth | 2015 |
| Ryan Champion Limited | West Sussex | 1993 |
| Ryan Darbyshire Farrier Ltd | Stourbridge | 2021 |
| Ryan Gibbon Fishing Ltd | Hull | 2026 |
| Ryan Hogarth Fishing Ltd | Peterhead | 2018 |
| Ryan J West Limited | Ladysbridge | 2015 |
| Ryan Mcgorman Limited | Enniskillen | 2018 |
| Ryan Milne Limited | Turriff | 2025 |
| Ryan Mundy Farrier Ltd | Eastleigh | 2021 |
| Ryan ORR Fishing Company Limited | Kilkeel | 2014 |
| Ryan Potter Racing Ltd | Ross-On-Wye | 2019 |
| Ryan Sea Services Ltd | Banff | 2022 |
| Ryan Wadling DIP WCF Ltd | Axbridge | 2021 |
| Ryans Farm Limited | Birmingham | 2019 |
| Rybecca Fishing Limited | Elgin | 2015 |
| Rybran Blooms Ltd | Leyland | 2019 |
| Rybran Salads Limited | Leyland | 2014 |
| Ryburn Gallery Limited | Sowerby Bridge | 2003 |
| Rycote Services Limited | Thame | 2012 |
| Rydon Farm Ltd | Newton Abbot | 2015 |
| RYE Bank Equestrian Ltd | Shrewsbury | 2022 |
| RYE Farm Limited | Colchester | 2007 |
| RYE Hill Farm Limited | Warminster | 2023 |
| Ryedale Vineyards Ltd | York | 2025 |
| Ryedaura Ltd | Stafford | 2021 |
| Ryehill Sporting Ltd | Newport | 2017 |
| Ryeland Flock Book Society Limited | Swansea | 1905 |