| 28951 | United Kingdom | FWJ Property Maintenance Ltd. | Unit 6, Shepperton Business Park, Govett Avenue, Shepperton, Middlesex, TW17 8BA | +44 2030 517806 | www.fwjlimited.com | | |
| 28952 | United Kingdom | FX Electrical Ltd | Gemini House, 136-140 Old Shoreham Road, Brighton BN3 7BD | +44 1273 580808 | www.fxelectrical.com | | |
| 28953 | United Kingdom | G E National | 7 Stop Lock Court, Preston, Lancashire, PR4 6ET | +44 7506 440449 | www.solarpanelslondon.net | LONGi Solar Technology Co., Ltd. | SolaX Power Network Technology(Zhejiang) Co.,Ltd. |
| 28954 | United Kingdom | G James Electrical Ltd | 22 Park Grove, Trecynon Aberdare CF44 8EL | +44 1685 872533 | www.gjameselectrical.co.uk | | |
| 28955 | United Kingdom | G M Monk Ltd | Eastbourne, East Sussex | +44 1323 841769 | www.gmmonk.co.uk | | |
| 28956 | United Kingdom | G P Electric Ltd. | 127 Annan Road, Dumfries DG1 3EW | +44 1387 263536 | www.gpelectricalservices.co.uk | | |
| 28957 | United Kingdom | G-Tech Electrical Contractors Ltd | C1 Goldbank Business Park, Wilton Road, Humberston, North East Lincolnshire, DN36 4AW | +44 1472 812111 | www.gtech-electrical.co.uk | | |
| 28958 | United Kingdom | G-Tech Electrical Solutions | 12 Alandale Gardens, Lancaster, Lancashire LA1 5JN | +44 7502 227514 | gtechelectrical-lancaster.co.uk | | |
| 28959 | United Kingdom | G.R. Edwardes Ltd | Unit 7b, St. Andrews Trading Estate, Bridport, Dorset, DT6 3EX | +44 1308 422637 | gredwardes.co.uk | | |
| 28960 | United Kingdom | G.W and J Ward | Thornfield, Sandhutton, Thirsk, North Yorkshire, YO7 4RS | +44 1845 587092 | www.ward-electrical-renewable.co.uk | | |
| 28961 | United Kingdom | G&H Group of Companies Ltd. | Firlands Mill, South Parade Leeds LS28 8AD | +44 113 2556433 | ghgroupofcompanies.co.uk | | |
| 28962 | United Kingdom | g2 Energy | 1 Osier Way, Olney Office Park, Olney Buckinghamshire, MK46 5FP | +44 1234 482482 | https://www.g2energy.co.uk | | |
| 28963 | United Kingdom | G2Techk, Solar Heating & Energy | 115 a / 115 b Gallery Buildings, Haley Hill, Halifax, West Yorkshire, HX3 6EE | +44 1422 349040 | https://gallerykitchendesign.co.uk | | |
| 28964 | United Kingdom | Galliford Try Holdings Plc | Leicester Road, Wolvey, Hinckley, Leicestershire, LE10 3JF | +44 1455 222777 | www.gallifordtry.co.uk | | |
| 28965 | United Kingdom | Gareth Griffiths Solar & Electrical Engineers | Unit 24, Gaerwen Industrial Estate, Gaerwen, Anglesey, LL60 6HR | +44 7786 442028 | griffithssolarelectrical.com | | |
| 28966 | United Kingdom | Garness Contracting Ltd. | Unit 9A, Commercial Point, Mullacott Industrial Estate, Ilfracombe, North Devon, EX34 8FH | +44 1271 865774 | garnessltd.com | | |
| 28967 | United Kingdom | Gary Stevens Electricals Ltd | 23 Thornwell Way Wincanton, Somerset BA9 9EN | +44 1963 33110 | https://www.garystevenselectricals.co.uk | | |
| 28968 | United Kingdom | GasPlus Energy Solutions Ltd | | +44 1424 892982 | www.gasplus.co.uk | | |
| 28969 | United Kingdom | GasWorld Ltd | 1 Avon Valley Business Park, Chapel Way, St. Annes, Bristol, BS4 4EU | +44 117 9725340 | www.gasworldltd.co.uk | | |
| 28970 | United Kingdom | GB Solar Limited | Worksop, Nottinghamshire | +44 1909 269853 | www.gbsolar.co.uk | | |
| 28971 | United Kingdom | GBM Heating Plumbing & Gas Engineers Ltd | 182, Stanley Road, Teddington, Middlesex, TW11 8UD | +44 20 89733700 | https://www.gbmheating.com | | |
| 28972 | United Kingdom | G Collier & Sons Ltd | Kitling Road, Knowsley Business Park, Kirkby, Knowsley, Merseyside, L34 9JA | +44 151 5491373 | www.gc-s.co.uk | | |
| 28973 | United Kingdom | GD Electrical & Solar | 80, Parkhouse Road, Minehead, Somerset, TA24 8AF | +44 1643 702599 | gdelectrical.org | | REC Group, Panasonic Corporation (Sanyo) |
| 28974 | United Kingdom | Gechnology Limited | The Incuba, 1 Brewers Hill Road, Dunstable, Bedfordshire, LU6 1AA | +44 1582 343119 | https://www.gechnology.co.uk | SMA Solar Technology AG, SolarEdge Technologies, Ltd. | |
| 28975 | United Kingdom | Gecko Energy | Woodland View, Coxleigh Barton, Barnstaple, Devon EX31 4JL | +44 1271 850280 | https://www.geckoenergy.co.uk | Sunbeam System Group | Victron Energy BV |
| 28976 | United Kingdom | Green Energy Generation Ltd. | Front Street, Bebeside, Blyth, Northumberland, NE24 4HP | +44 1670 828695 | www.greenenergygeneration.co.uk | | |
| 28977 | United Kingdom | Green Electrical Installations Ltd | 31, Trensale Avenue, Coventry, CV6 1AS | +44 333 2100213 | www.gei.org.uk | | |
| 28978 | United Kingdom | Green Energy International Limited | Trinity House, Newby Road, Hazel Grove, SK7 5DA | +44 161 6967332 | https://greenenergy-int.com | | |
| 28979 | United Kingdom | GEM Solutions UK Ltd | Unit 7, Woodview Business Centre, Lockwood Close, Nottingham, NG5 9JN | +44 115 9671080 | www.gemsolutions.org.uk | | |
| 28980 | United Kingdom | Gemec Ltd. | 393 Lordship Lane, London N17 6AE | +44 20 83252763 | https://www.gemecltd.com | | |