| Shore Farm Estate Limited | Ramsgreave | 2021 |
| Shore Hall Estate Limited | Haverhill | 1957 |
| Shore Place Ltd | Lewes | 2020 |
| Shorecroft Fishing Limited | | 2003 |
| Shoreham Silo Services Limited | Chichester | 2004 |
| Shorelands Conservation CIC | Diss | 2022 |
| Shores Fertilisers Limited | Nantwich | 1992 |
| Shorn Ltd | Horsham | 2023 |
| Shortcastle Bloodstock Limited | Newmarket | 2025 |
| Shorthorn Sires UK Limited | Carlisle | 1994 |
| Shortiebullz 24HR Pet Response Limited | Mansfield | 2022 |
| Shortridge Estates Ltd | Heathfield | 1994 |
| Shorts Agricultural Services Ltd | Bracknell | 1997 |
| Shortwood Dairy Limited | Stafford | 2004 |
| Shortwood Farm Limited | Nottingham | 2016 |
| Shortwood Harvesting Ltd | Kelso | 2012 |
| Shot Count Limited | London | 2025 |
| Shotton Dairy Ltd | Bishops Castle | 2021 |
| Shotwick Farms Limited | Chester | 2021 |
| Shovannah Ltd | Fraserburgh | 2018 |
| Showpiece (Devon) Limited | Crediton | 2003 |
| Shqrb Limited | Wisbech | 2015 |
| Shradale Limited | Shrewsbury | 2015 |
| Shreelaxmi PVT Ltd | Leicester | 2026 |
| Shrimp Welfare Project Ltd | London | 2022 |
| Shrimp.Scot Limited | Cupar | 2023 |
| Shroom Box CIC | Cardiff | 2025 |
| Shrooma Ltd | Oswestry | 2023 |
| Shroomworks Ltd | Tredegar | 2025 |
| Shropshire and West Midlands Agricultural Society | Shrewsbury | 1986 |
| Shropshire Farm Services Ltd | Newport | 2025 |
| Shropshire Free Range Eggs Limited | Shrewsbury | 2007 |
| Shropshire Horse Hirelings Limited | Ludlow | 2022 |
| Shropshire Livestock Limited | Whetstone | 2011 |
| Shropshire Logs and Lawns Ltd | Church Stretton | 2026 |
| Shropshire Petals Limited | Newport | 2011 |
| Shropshire Polo Club Limited | Shrewsbury | 2020 |
| Shropshire Real Estate Limited | Whetstone | 2021 |
| Shropshire Tractors & Machinery Limited | Stourbridge | 2022 |
| Shropshire Tree Services Limited | Shrewsbury | 2004 |
| Shropshire's Game Company Ltd | London | 2025 |
| Shrubbs Farm | Bishops Storford | 1959 |
| Shrubgarden Limited | Newcastle Upon Tyne | 2022 |
| Shrubhill Farms Limited | Kettering | 2006 |
| Shrublands Enterprises Limited | Reading | 2007 |
| Shthpn Limited | Kington | 2018 |
| Shuny's Farm & Livery Ltd | Weston-Super-Mare | 2021 |
| Shurcrack Farm Limited | Todmorden | 2021 |
| Shustoke Honey Ltd | Birmingham | 2023 |
| Shute Farms Limited | Bodmin | 2015 |
| Shutt & Mansell Limited | Newport | 2012 |
| Shutts Farm Services Ltd | Bakewell | 2009 |
| SHW Agri Ltd | Stirling | 2026 |
| SI Energy Ltd | Co Tyrone | 2006 |
| Siafu PR Ltd | Grantham | 2015 |
| Siam Fishing Tours Co Ltd | London | 2022 |
| Siamax Agricultural Limited | East Grinstead | 2007 |
| Sian Chapman Horsemanship Ltd | Carlisle | 2025 |
| Sians Emporium Limited | Llandeilo | 2021 |
| Siar Companaidh Ltd | Isle Of Lewis | 2018 |
| Siberian Reef Durham Ltd | Shildon | 2025 |
| Siberian Timber (U.K.) Limited | Mold | 2002 |
| Sibi Vita Ltd | Holsworthy | 2025 |
| Sibishin Ltd | Telford | 2022 |
| Sibling Winery Limited | Warwick | 2018 |
| Sibmister and Stainland Farms Limited | Forfar | 2026 |
| Sibton Abbey Contracting Limited | Sibton | 2020 |
| Sick VEG Ltd | London | 2023 |
| SID Valley Tree Surgery Limited | Sidmouth | 2006 |
| Sidbrook Farm Limited | London | 2025 |
| Sidegate Farm Limited | Keighley | 2004 |
| Sidewinder Trawling Ltd | Banff | 2022 |
| Sidford Farms Limited | Winchester | 1990 |
| Sidney H. Noon Limited | Bakewell | 1948 |
| Sidney Hackett Limited | Nottingham | 1952 |
| Sidwell Farms Ltd | Peterborough | 2020 |
| Sied Y Coed Limited | Bristol | 2022 |
| Siely Farming Limited | Happisburgh | 2020 |
| Sienna Hosta Limited | Fareham | 2016 |
| Sierra Firmly Ltd | London | 2023 |
| Sightmead Limited | Saffron Walden | 1979 |
| Sigma Biomass Limited | Leigh-On-Sea | 2017 |
| Signature Canines Ltd | London | 2023 |
| Signature Landscapers Ltd | Swindon | 2026 |
| Signify Bloodstock Limited | Leyburn | 2013 |
| Signs Global Enterprise Ltd | Coventry | 2025 |
| Signum Stallions Ltd | Bath | 2026 |
| Silage Solutions Ltd | Aberystwyth | 2010 |
| Silagesense Ltd | Barnstaple | 2021 |
| Silbury Shooting Limited | Marlborough | 2019 |
| Silcon Ltd | London | 2025 |
| Sildvik Ltd | Broadford | 2022 |
| Silent Valley Farms Ltd | Ballymena | 2024 |
| Silenzio Bruno Limited | Exeter | 2025 |
| Silfield Bloodstock Ltd | Thetford | 2003 |
| Silfield Limited | Norfolk | 1958 |
| Silk Road Africa Ltd | London | 2024 |
| Silkcroft Limited | Lichfield | 2018 |
| Silkland Farm Ltd | South Molton | 2019 |
| Silktown Sport Ltd | Macclesfield | 2025 |