| Scotch Quality Beef and Lamb Association Limited | Edinburgh | 1975 |
| Scotch Wood Logs Ltd | Glasgow | 2025 |
| Scotfarms Limited | Aberdeen | 1998 |
| Scotia Agri Limited | London | 2025 |
| Scotia Seeds Limited | Brechin | 2006 |
| Scotia Tourism Ltd | South Queensferry | 2017 |
| Scotia Tree Services Limited | Paisley | 2022 |
| Scotlarch Ltd | Inverurie | 2022 |
| Scotlawn Limited | Glasgow | 2001 |
| Scotnet (International) Ltd. | Aberdeen | 1993 |
| Scotpaws UK Ltd | Lanark | 2019 |
| Scotplants Limited | Ayrshire | 1990 |
| Scotscape Smartscape Limited | Wallington | 2018 |
| Scotson Farms Limited | Roxburghshire | 1970 |
| Scott & Co. Limited | York | 2010 |
| Scott & Tate Tree Surgeons Ltd | Exeter | 2010 |
| Scott Adey Limited | Farringdon | 1995 |
| Scott AG Solutions Ltd | Banff | 2025 |
| Scott and Scott (Ayston) Limited | Uppingham | 1982 |
| Scott Anderson Contracting Ltd | Jedburgh | 2023 |
| Scott Bros. Farms Ltd | Ayr | 2026 |
| Scott Coyle Horse Sales & Training Limited | Dundee | 2022 |
| Scott Davies Tree Surgery Ltd | Preston | 2014 |
| Scott Farming Limited | Tain | 2013 |
| Scott Fishing Industries Limited | Banff | 2017 |
| Scott Fraser Training Limited | Polegate | 2014 |
| Scott Kimber Bloodstock Limited | Waterlooville | 2015 |
| Scott Nicol Enterprises Ltd. | Banff | 2009 |
| Scott Norquoy Inshore Fishing Ltd | Orkney | 2018 |
| Scott Property Consultants Limited | Loughborough | 2008 |
| Scott Rumble Limited | Tilton On The Hill | 2026 |
| Scott Shellfish Ltd | Shetland | 2013 |
| Scott Shepherd Limited | Buckie | 2006 |
| Scott Telford Contracting Limited | Stonehaven | 2002 |
| Scott Tree Services Ltd | Bournemouth | 2002 |
| Scotties Farm Ltd | Colchester | 2022 |
| Scottish Fisheries Sustainable Accreditation Group | Peterhead | 2009 |
| Scottish Fishermen's Organisation Limited | Edinburgh | 1973 |
| Scottish Fishermen's Trust | Aberdeenshire | 1999 |
| Scottish National FAT Stock Club | Moffat | 2009 |
| Scottish Pelagic Fishermen's Association Limited | Fraserburgh | 1932 |
| Scottish Pelagic Sustainability Group Limited | Fraserburgh | 2007 |
| Scottish PIG Industry Initiative | Edinburgh | 1990 |
| Scottish Sea Farms Limited | London | 1969 |
| Scottish Sea Farms Sales Limited | Stirling | 1996 |
| Scottish Seas Limited | Aberdeen | 2012 |
| Scottish Tree Planting Limited | Birnam | 2017 |
| Scottish Woodlands Limited | Edinburgh | 1986 |
| Scottow Farms Limited | Norwich | 1961 |
| Scotts of Norton Limited | Kidderminster | 2010 |
| Scotty Services Limited | Coventry | 2025 |
| Scotvax International Services Ltd | Isle Of Skye | 2018 |
| Scotwood Macdonald Limited | Oban | 2014 |
| Scratchings Limited | Staplefield | 2022 |
| Scribeland Limited | Alton | 1981 |
| Scrivelsby Farms Limited | Horncastle | 1993 |
| Scriven Industries Limited | Horsham | 2019 |
| Scriveton Manor Farm Holdings Limited | Bakewell | 1948 |
| Scrogs Ltd | Bedale | 2021 |
| Scrubditch Care Farm | North Cerney | 2013 |
| Scruffs (Maidenhead) Limited | Torquay | 2019 |
| SCT Retail Ltd | Dumfries | 2023 |
| Scuderia Giocri Limited | Ely | 2012 |
| Scullion Tree Care Ltd | Birmingham | 2018 |
| Scurrah Associates Ltd | Harrogate | 2023 |
| Scutt Farming | Goole | 2006 |
| Scutt's Eggs Limited | Goole | 2025 |
| SD Baywaters Ltd | Fraserburgh | 2017 |
| SD Digger Hire Ltd | Huntly | 2017 |
| SD Equestrian Services Ltd | Knutsford | 2023 |
| SD Equine & Canine Services Ltd | Bristol | 2025 |
| SD Metcalfe Limited | York | 2015 |
| SD Robinson Ltd | Hertford | 2015 |
| SD Ssas Ltd | Colchester | 2011 |
| SDB Equine Ltd | Milnthorpe | 2025 |
| SDC Marine Services Ltd. | Bolton | 2014 |
| SDF Agriculture Ltd | Spalding | 2015 |
| SDG Agri Ltd | Gloucester | 2024 |
| SDL Biomass Limited | Chipping Campden | 2011 |
| SDR Arborists Ltd | Reading | 2015 |
| SDS Treeworks Ltd | Wareham | 2022 |
| SDW (Scotland) Ltd | Fraserburgh | 2019 |
| SDW Fishing Limited | Peterhead | 2017 |
| SDZ (Chorley) Ltd | Bury | 2025 |
| SE158 Limited | Salcombe | 2014 |
| Sea Breeze Fishing Ltd | Fareham | 2019 |
| Sea Breeze Trawlers Limited | Chelmsford | 2002 |
| Sea Chance Limited | Orkney | 2021 |
| Sea Change Innovations Ltd | Oban | 2023 |
| Sea Eagle AH18 Limited | Carnoustie | 2019 |
| Sea Farms Nutrition Limited | Redditch | 2016 |
| Sea Forest Group Limited | London | 2022 |
| Sea Kestrel Ltd | Seaton | 2019 |
| Sea Lady Trawlers Ltd | Annan | 2016 |
| Sea Maine Export Limited | Lymington | 2017 |
| Sea Seeker Limited | Bridport | 2012 |
| Sea Source Processing Ltd | Newry | 2014 |
| Sea Spray Fishing Ltd | Tarbert | 2013 |
| Sea Venture Fishing Ltd | Broughty Ferry | 2023 |
| Seabarley Limited | London | 2016 |