| 30091 | United Kingdom | Smartwire Electrical Services Ltd | | +44 7920 513532 | smartwire-electrical.co.uk | | |
| 30092 | United Kingdom | SMD Electrical Services Ltd. | 38, Fullerton Road, Byfleet, West Byfleet, Surrey, KT14 7TA | +44 1932 353209 | www.smdelectricalservices.co.uk | | |
| 30093 | United Kingdom | Surrey M&E Ltd | The Orangery, The Square Carshalton, SM5 3BN | +44 20 87739496 | surrey-mep.com/ | | |
| 30094 | United Kingdom | Smith Bros (Caer Conan) Wholesale Ltd. | Sidings Court, Doncaster, South Yorkshire, DN4 5NU | +44 1302 366922 | https://smithbrosuk.com | | |
| 30095 | United Kingdom | Smith Brothers Contracting Ltd. | Unit G8, Navigation Close, Lowfields Business Park, Elland, West Yorkshire, HX5 9HB | +44 333 3583653 | https://www.smithbrothersltd.co.uk | | |
| 30096 | United Kingdom | Smokeless Energy | 7 Freshwater Drive, Paignton, Devon TQ4 7SB | +44 7753 238911 | www.smokelessenergy.co.uk | Fronius International GmbH | |
| 30097 | United Kingdom | Smoothe Consulting | 5 Links Close Caister on Sea, Great Yarmouth, Norfolk NR30 5DD | +44 7739 988205 | https://smoothe.org | | |
| 30098 | United Kingdom | SN Electrical | Tonbridge, Kent | +44 1732 357786 | www.sn-electrical.co.uk | | |
| 30099 | United Kingdom | So Go Solar Ltd | 5, Mulgrave Chambers, 26-28, Mulgrave Road, Sutton, SM2 6LE | +44 800 0025833 | sogosolar.co.uk | | REC Group, Solarwatt GmbH, SunPower Corp., JA Solar Holdings Co., Ltd., Panasonic Corporation (Sanyo), LG Electronics, Inc. |
| 30100 | United Kingdom | Sol Electrical Ltd | 22, Lower Town, Sampford Peverell, Devon, EX16 7BJ | +44 1884 235800 | www.solelectrical.com | SolarEdge Technologies, Ltd. | |
| 30101 | United Kingdom | Sol PV Group Ltd | No2 Warehouse, The Wharf, Sowerby Bridge, HX6 2AG | +44 1422 647817 | www.solpvgroup.co.uk | Siemens Energy, SolarEdge Technologies, Ltd., Fimer S.p.A. | |
| 30102 | United Kingdom | Solafields Ltd. | | +44 1184 050054 | solafields.co.uk | | |
| 30103 | United Kingdom | Solaflair | Moffat, DG10 9SQ | +44 1683 300651 | www.solaflair.co.uk | | |
| 30104 | United Kingdom | Solapak | Basepoint, Cressex Business Park, High Wycombe, Bucks HP12 3RL | +44 1494 614523 | solapak.co.uk | | |
| 30105 | United Kingdom | Solar 3 Energy | Maidstone, Kent, Plymouth, Devon | +44 845 5051199 | www.solar3energy.co.uk | SMA Solar Technology AG, Fronius International GmbH | |
| 30106 | United Kingdom | Solar Advanced Systems | Unit 9, Edenbridge Trading Centre, Hever Road, Edenbridge, Kent, TN8 5EA | +44 1732 866731 | https://www.sas-energy.co.uk | | |
| 30107 | United Kingdom | Solar Air UK | 133-134 John Wilson Business Park, Whitstable, Kent CT5 3QT | +44 1227 265871 | www.solarairuk.com | | |
| 30108 | United Kingdom | Solar and Wind Applications Limited | Trabboch House, By Stair, KA5 5HX | +44 1292 591000 | www.solarwindapplications.com | | LG Electronics, Inc. |
| 30109 | United Kingdom | Solar Brothers Ltd. | 4 Malpas Road, Grays, Essex, RM16 4QX | +44 755 4016683 | www.solarbrothers.co.uk | | |
| 30110 | United Kingdom | Solar Cardiff | | +44 8000 238977 | solarcardiff.co.uk | SolarWorld Industries GmbH, Yingli Green Energy Holding Co., Ltd., Canadian Solar Inc., Hyundai Energy Solutions, LG Electronics, Inc., Seraphim Solar System Co., Ltd. | SMA Solar Technology AG, ABB Italy S.p.A., SolarEdge Technologies, Ltd. |
| 30111 | United Kingdom | Solar City UK | 159, St Bernards Road, Solihull, West Midlands, B92 7DH | +44 121 7063999 | www.solarcityuk.co.uk | Suntech Power Co., Ltd., Trina Solar Limited, Panasonic Corporation (Sanyo), ReneSola Ltd., ET Solar New Energy Co., Ltd., LG Electronics, Inc. | Enphase Energy, Inc., SolarEdge Technologies, Ltd., Fimer S.p.A. |
| 30112 | United Kingdom | Solar Days Ltd | Unit 16, Hartley Business Centre, 272-284 Monkmoor Road, Shrewsbury, Shropshire SY2 5ST | +44 1743 366555 | www.solar-days.co.uk | | |
| 30113 | United Kingdom | Solar Doctor | 105 High Road, Leavesden, Watford, Herts WD25 7LL | +44 800 7566808 | solardoctor.eu | | |
| 30114 | United Kingdom | Solar East Anglia Ltd. | 15, Whiting Street, Bury St Edmunds, Suffolk, IP33 1NX | +44 1603 952910 | solareastanglia.co.uk | | Risen Energy Co., Ltd. |
| 30115 | United Kingdom | Solar Energy Matters | 18 Coworth Close, Sunningdale, ASCOT, Berkshire, SL5 0NR | +44 7977 591919 | https://solarenergymatters.co.uk | | |
| 30116 | United Kingdom | Solar Energy Systems | 4 Ross Street, Dunfermline, Fife, Scotland, KY12 0AN | +44 1383 725499 | www.solarenergysystems.co.uk | | |
| 30117 | United Kingdom | Solar Europa Global | Vicarge Chambers, 9 Park Sq East, Leeds, West Yorkshire, LS1 2LH | +44 1924 365388 | solareuropaglobal.com | | |
| 30118 | United Kingdom | Solar Gateway Ltd. | Unit 1, Cottage Farm, Cottage Road, Wooler, NE71 6AD | +44 345 3405516 | https://solargateway.energy | | |
| 30119 | United Kingdom | Solar Gold South West | 1, Grebe Way, Kingsteignton, Devon, TQ12 3FR | +44 1626 572101 | www.solargoldsw.co.uk | SMA Solar Technology AG, Shenzhen Growatt New Energy Technology Co., Ltd., Omnik New Energy Co., Ltd. | |
| 30120 | United Kingdom | Solar Green Ltd. | 7 East Hanningfield Industrial Estate, Old Church Road, Chelmsford, Essex CM3 8AB | +44 1245 400550 | www.solar-green.co.uk | Sharp Energy Solutions Europe, Panasonic Corporation (Sanyo) | |