| Sandstone Poultry Ltd | Wrexham | 2022 |
| Sandwath Farms Limited | Richmond | 2011 |
| Sandwell Pest Control Services Ltd | London | 2015 |
| Sandwood Fisheries Ltd | Tain | 2026 |
| Sandwood Kennels Limited | Goole | 2026 |
| Sandy Kiln Farms Limited | Carmarthen | 2002 |
| Sandyford Farms Limited | Lewes | 2026 |
| Sandyhills Farm Limited | Taunton | 2022 |
| Sandystones Ltd | Roxburghshire | 2004 |
| Sangrisieo Ltd | Holywell | 2024 |
| Sanham Farm Limited | Nottingham | 1956 |
| Sanitrux Limited | Guildford | 1966 |
| Sankey Farms Ltd | Dudley | 2023 |
| Sanmar Fishing Company Limited | | 2004 |
| Sanoif.Fold Limited | Doncaster | 2014 |
| Sansaw Dairies Limited | Shrewsbury | 2006 |
| Sansom Farming Ltd | Stafford | 2024 |
| Sansovino Developments Limited | Bolton | 2019 |
| Sant' Elia Limited | Malvern | 2013 |
| Santa's Fields Ltd | Solihull | 2021 |
| Santa's Fields South West Ltd | St Agnes | 2021 |
| Santalberto Vintners Limited | Chipping Campden | 2003 |
| Santamar Atlantic Limited | London | 2014 |
| Santiago Araya Polo Limited | Henley-On-Thames | 2024 |
| Sanvia Pharmaceuticals Limited | Maidenhead | 2025 |
| Sanwu Electronics Ltd | Manchester | 2023 |
| Saoirse Shellfish Ltd | King'S Lynn | 2020 |
| Saor Forestry Limited | Johnstone | 2019 |
| Sapley Farm Limited | Basingstoke | 2026 |
| Sapley Park Farms Limited | Norwich | 1980 |
| Sapling Arboriculture Limited | Alton | 2005 |
| Sapling Home Farm Ltd | Knutsford | 2024 |
| Saplings Begin Limited | London | 2018 |
| Sapness Farm Limited | Hereford | 2013 |
| Sapphire Equestrian Limited | York | 2014 |
| Sapphire Livestock Ltd | Workington | 2026 |
| Saprogrow Ltd | Radstock | 2022 |
| Saprorganix Ltd | Teddington | 2022 |
| SAR Nominees Ltd | Perth | 2021 |
| Sara Amaryllis Ltd | Didcot | 2018 |
| Sara Parrott Equestrian Ltd | York | 2015 |
| Saradave Investment Ltd | Coventry | 2024 |
| Sarah Chenevix-Trench Limited | Woodham Mortimer, Maldon | 2004 |
| Sarah's Fisheries Ltd | Hull | 2014 |
| Sarah-Jane Fishing Limited | West Midlands | 1997 |
| Sarahs Pet Care Cambs Ltd | Ely | 2024 |
| Sarah’S Feline Friends Ltd | Sutton Coldfield | 2025 |
| Saralis Limited | Doncaster | 2018 |
| Saramac Limited | Chesterfield | 2007 |
| Sarb Contracts Ltd | Patrick Brompton | 2018 |
| Sardini Ltd | Larne | 2016 |
| Sargent & Waight Limited | Yeovil | 2008 |
| Sarkside Limited | Kirkpatrick Fleming | 2010 |
| Sarn LAS Dairy Limited | Porthmadog | 2018 |
| Sarpo Potatoes Limited | Bangor | 2013 |
| Sarpof Ltd | Stockport | 2020 |
| Sarratt Community Garden CIC | Rickmansworth | 2022 |
| SAS Agri Drones Ltd | London | 2026 |
| SAS Aquatics Ltd | Chesterfield | 2025 |
| SAS Bovine Genetics Limited | Northallerton | 2025 |
| SAS Drone Services Ltd | Bracknell | 2014 |
| SAS Farming Limited | Middlewich | 2013 |
| SAS Farms Ltd | Craven Arms | 2026 |
| SAS Land Services Ltd | Bracknell | 2025 |
| Sassy Strolls Ltd | Tamworth | 2022 |
| Satinsilk Limited | Exeter | 1998 |
| Satio Forestry Ltd | Llanbedr Pont Steffan | 2026 |
| Satomi Nishikigoi Ltd | Bolton | 2024 |
| Satsure Limited | London | 2016 |
| Sattridge Ltd | Aberdeen | 2025 |
| Saul Farm Livery Ltd | Sheffield | 2020 |
| Saul Investments Limited | Claudy | 2021 |
| Saultire Fishing Limited | Buckie | 2004 |
| Saundby Limited | Retford | 2020 |
| Saunders Agriculture Ltd | Oxford | 2025 |
| Saunders Farming Limited | Faringdon | 2016 |
| Saunders Farms Limited | Northampton | 2015 |
| Saunders House Farm Ltd | Gateshead | 2023 |
| Saunders Ltd | Uckfield | 2015 |
| Saunders Sawmill Limited | Whitby | 2001 |
| Saunters Light Goods Vehicle Driver Hire Ltd | Hastings | 2025 |
| Sausage Staycation Ltd | Shepperton | 2023 |
| Savannah Ridge Ltd | Derby | 2026 |
| Save a Life Cheshire Ltd | Crewe | 2018 |
| Save Africa From Malaria Infection | Bristol | 2025 |
| Save OUR UK Ltd | Rugby | 2025 |
| Save the Life Foundation Limited | Manchester | 2025 |
| Savernake Farming Ltd | Marlborough | 2019 |
| Savernake Park Trading Limited | Marlborough | 2026 |
| Savernake Sporting Ltd | Marlborough | 2024 |
| Savetreez Ltd | Weybridge | 2020 |
| Savock Biogas Limited | Ellon | 2017 |
| SAW Doctors Forestry Ltd | Burnley | 2017 |
| Sawbo Pups Limited | Weybridge | 2021 |
| Sawgrass Substrates Limited | Dungannon | 2024 |
| Sawmilling Services Limited | Bridlington | 2013 |
| Sawpod Ltd | Hampshire | 2007 |
| Saxlingham Farming Limited | Holt | 2007 |
| Saxon Fisheries (UK) Limited | Canterbury | 2003 |
| Saxoncats Maine Coons Ltd | Kington | 2024 |