| 4023701 | South Lodge - NS 2979 | Evesham Rd, Weethley, Alcester B49 5ND, UK | B49 5ND | — | B Lea | | — | |
| 3796527 | South West Pumps Limited | 1 St Peters Close, Ilton, Ilminster, Somerset, TA19 9HU, UK | TA19 9HU | pumps@southwestpumps.com | Nigel Bere | | — | |
| 3649104 | Southern Cesspool Services | The Fuel Depot, Capel Road, Ruckinge, Ashford, Kent, TN26 2PJ | TN25 4NS | info@southerncesspoolservices.com | Rodger Beck | | — | |
| 3492468 | Southridge Farmhouse (National Trust) | Hayfield, High Peak SK22 2JT, UK | SK22 2JT | — | | — | — | |
| 3492465 | South Essex Wildlife (D1100) | Grays RM16 3BH, UK | RM16 3BH | hedgehogsue@outlook.com | SUE SCHWAR | | — | |
| 3492383 | South Normanton Parish Council (A1332)- GONE WITH OTHERS | The Hub Joint Services Center, Shiners Way, South Normanton, Derbyshire, DE55 2FY | DE55 2AA | welcome@postmillcentre.co.uk | Margot Richards | | — | |
| 3492000 | South Grove (B1038) | Darfoulds, Worksop, S80 3DS, UK | S80 | stephenriichardson68@gmail.com | Stephen Richardson | | — | |
| 9085977 | Solar Aeration Systems | 6a Fir Tree Lane, Groby, Leicester, LE6 0FH | LE6 0FH | sales@solaraerationsystems.com | Chris Weston | | — | |
| 7472278 | Snape Hall Gardens Management Company | Snape Hall Gardens Snape Lane Weston Crewe Cheshire CW2 5NB | CW2 5NA | wendyjdelaney@hotmail.co.uk | Wendy Delaney | | — | |
| 7433026 | Snipe House | Snipe House, Skirpenbeck, York, North Yorkshire, YO41 1HD | YO41 1HD | ruth.ray@btopenworld.com | Ruth Ray | | — | |
| 7423219 | South Barn, BA12 0PY | South Barn, Fisherton De La Mere, Warminster, Wiltshire, BA12 0PY | BA12 0PY | ahudson2464@gmail.com | Andrew Hudson | | — | |
| 6629469 | Soddy Gap Lodge | Moor Road Great Broughton Cockermouth Cumbria CA13 0Yx | CA13 | pkthomason@hotmail.com | Paul Thomason | | — | |
| 6314372 | Snowdon Homes Limited | The Old Library, Midland Road, Higham Ferrers, Northamptonshire, NN10 8DN | NN10 8DN | elliott.harding@snowdonhomes.com | Elliott Harding | | — | |
| 5534023 | Smith Builders Ltd | Brick Cottage, Winforton, Hereford HR3 6EB, UK | HR3 6EB | howard@smithbuildersltd.co.uk | Howard Smith | — | — | |
| 5372674 | Solent Stevedores | Imperial Workshop, Southampton, Hampshire, SO15 1HF, UK | SO15 2AT | nickwright@solentstevedores.com | Christopher Jones | — | — | |
| 5216335 | Sophie Carroll | Mallswood Nursery Lane, Blackboys, Uckfield, East Sussex, TN22 4EU, UK | TN22 4EU | — | Sophie Carroll | — | — | |
| 5196268 | Solve 3D Ltd | Folly Barn, Main Road, Gransmoor, Driffield YO25 8HX, UK | YO25 8HX | sam@solve3d.com | Chris Hill | | — | |
| 5188884 | Smithy Cottage | Alkmonton, Ashbourne DE6 3DJ, UK | DE6 3DJ | raf_rob@hotmail.com | Rob Marshall | — | — | |
| 5161750 | Somerset Farm (East Anglia) Ltd - NS3034 | Wisbech St Mary, Wisbech PE13 4HN, UK | PE13 4HN | — | | — | — | |
| 5058602 | Snells Cottage | Snells Cottage, Trow Lane, Lyneham, Chippenham, Wiltshire, SN15 4DP | SN15 4DP | — | Kevin Collingborn | | — | |
| 4974194 | Sorin Sulica | 34 Holbeach Rd, Spalding PE11 2HQ, UK | PE11 2HQ | lelesorin1@gmail.com | Sorin Sulica | — | — | |
| 4845798 | Sotterley Farms Partnership | The Estate Office, Lower Green Farm, Lower Green, Sotterley, Beccles, Suffolk, NR34 7TY, UK | NR34 7TY | office@sotterleyestate.co.uk | Donna Brooke | | — | |
| 4642362 | Society of Model Aeronautical Engineers | 12 Duck Street, Elton, Peterborough, Cambridgeshire, PE8 6RQ, UK | PE8 6RQ | manny@bmfa.org | Manny Williamson | — | — | |
| 4635604 | Somdet | Hollow Rd, Ramsey Forty Foot, Ramsey, Huntingdon PE26 2YA, UK | PE26 2YA | — | Roger Munsey | — | — | |
| 4248975 | Snowik Limited | Unit 14-15 Windsor Park Ind. Est, 50 Windsor Ave, Wimbledon, London SW19 2TJ, UK | SW19 2TJ | accounts@snowik.co.uk | Slawomir Francuz | | — | |