| P Winfield & Son Ltd | 01226 297253 | | 53 Summer Lane, Barnsley, S70 2NW |  Map & Directions |
| D H Marrion Ltd | 01226 282576 | | 220 Sheffield Road, Barnsley, S70 4PF | | Map & Directions |
| P M C Electrical Sevices Ltd | 01226 360082 | | 33 Locksley Gardens, Birdwell, Barnsley, S70 5SU | | Map & Directions |
| Bellamy Electrical Engineering Ltd | 01226 296533 | | Shaw Lane Business Park, Shaw Lane, Barnsley, S70 6EH | | Map & Directions |
| D J Electrical Ltd | 01226 200860 | | 51 Wombwell Lane, Barnsley, S70 3NR | | Map & Directions |
| Coastform Systems Ltd | 01909 561470 | | Unit 18, Outgang Lane, Dinnington Business Centre, Dinnington, Sheffield, S25 3QX | | Map & Directions |
| Main Plumbing & Electrical Ltd | 0114 247 0043 | | Cable House, Station Road , Halfway, Sheffield, S20 3GT | | Map & Directions |
| R U Safe Ltd | 0114 282 3498 | | Aizlewoods Mill, Nursery Street, Sheffield, S3 8GG | | Map & Directions |
| Shaw Electrical | 01246 234355 | | 45 Alexandra Road East, Chesterfield, S41 0HF | | Map & Directions |
| Gamak Motors Ltd | 01226 382727 | | Unit 2, Claycliffe Road, Claycliffe Business Park, Barugh Green, Barnsley, S75 1JU | | Map & Directions |
| G. Manterfield Electrical Contractor | 01226 744783 | | The Paddock, 57 Market Street, Hoyland, Barnsley, S74 0ET | | Map & Directions |
| Hiltons Electrical Services | 01226 205947 | | West Road, Barnsley, S75 2DH | | Map & Directions |
| Grainger Electrical Services Ltd | 01909 477523 | | Dukeries Industrial Estate, Claylands Avenue, Worksop, S81 7BQ | | Map & Directions |
| Pennine Electrical Rewinding Ltd | 0114 266 4944 | | Clamark House, 63 Stalker Lees Road, Sheffield, S11 8NP | | Map & Directions |
| Needham Electrical Services | 01246 273525 | | Riverside Works, Storforth Lane, Chesterfield, S40 2TU | | Map & Directions |
| A J Electrical Ltd | 0114 232 0128 | | 559 Loxley Road, Loxley, Sheffield, S6 6RR | | Map & Directions |
| D R Electrical Ltd | 01226 752295 | | 2 Rotherham Road, Great Houghton, Barnsley, S72 0DB | | Map & Directions |
| Askwith Electrical Services Ltd | 0114 255 5805 | | Gordon Works, 49 Valley Road, Sheffield, S8 9FT | | Map & Directions |
| Loxley Technical Services Ltd | 0114 234 8128 | | 69 Leppings Lane, Sheffield, S6 1SS | | Map & Directions |
| Sheard Electrical | 01226 731535 | | 21 Regent Crescent, Barnsley, S71 3TS | | Map & Directions |
| M Stanley Smith | 0114 244 3977 | | 147 Handsworth Crescent, Sheffield, S9 4BQ | | Map & Directions |
| Cox Electrical | 01246 277640 | | 6 Troon Close, Chesterfield, S40 3NL | | Map & Directions |
| Techniserve Ltd | 0114 249 3449 | | Unit 55, Mowbray Street, Sheffield, S3 8EN | | Map & Directions |
| Jennic Ltd | 0114 281 2655 | | Furnival Works, Furnival Street, Sheffield, S1 4QT | | Map & Directions |
| P Austin | 01433 620569 | | Soft Water Lane, Bradwell, Hope Valley, S33 9LD | | Map & Directions |
| Dynamic Buliding Services Ltd | 01909 500333 | | Unit 1, Coach Crescent, Shireoaks, Worksop, S81 8AD | | Map & Directions |
| E Spencer & Sons | 01433 620781 | | Hallamshire Cottage, Smithy Hill, Bradwell, Hope Valley, S33 9JR | | Map & Directions |
| Bl Electrical Contractors Ltd | 0114 274 7479 | | 35 Greenfield Road, Sheffield, S8 7RR | | Map & Directions |
| Jubilee Electronics Ltd | 01909 591612 | | Jubilee Farm, Retford Road, Blyth, Worksop, S81 8EU | | Map & Directions |
| Arm Ltd | 0114 282 8000 | | Rockingham Court, 152 Rockingham Street, Sheffield, S1 4EB | | Map & Directions |
| Viking Research Ltd | 01909 530777 | | 5 Kilton Terrace, Worksop, S80 2DQ | | Map & Directions |
| Sheffield Electric Co Ltd | 0114 243 0236 | | 330 Petre Street, Sheffield, S4 8LU | | Map & Directions |
| James Alarms & Electrical | 0114 245 2048 | | 7 Raven Drive, Thorpe Hesley, Rotherham, S61 2UD | | Map & Directions |
| Electronic & Engraving Services Ltd | 01709 701715 | | Unit 16/17, Braithwell Way, Hellaby, Rotherham, S66 8QY | | Map & Directions |
| Mark Perrins | 01909 515331 | | Wales Road , Kiveton Park , Sheffield, S26 6RD | | Map & Directions |
| S J D Electrical Services Ltd | 01709 583048 | | 98 Fitzwilliam Street, Swinton, Mexborough, S64 8RW | | Map & Directions |
| Complete Cabling Ltd | 0114 269 2188 | | 8 Bramley Park Road, Sheffield, S13 8UA | | Map & Directions |
| Emeg Electrical Ltd | 01246 268678 | | 3 Dunston Place, Dunston Road, Chesterfield, S41 8NL | | Map & Directions |
| J A Holden | 01709 894220 | | Lynden, Thurnscoe Road , Bolton-upon-Dearne, Rotherham, S63 8JW | | Map & Directions |
| Bramley Electrical and Mechanical Ltd | 0114 279 8316 | | Watson House, 33 Burton Road, Sheffield, S3 8BX | | Map & Directions |
| Walker Miller & Co Ltd | 0114 281 2212 | | 2 Walkley Lane, Sheffield, S6 2NY | | Map & Directions |
| Contact Electrical Services | 0114 254 0920 | | 56 Balmoral Road, Sheffield, S13 7QG | | Map & Directions |
| Quick Electronic Controls Ltd | 0114 256 2577 | | Dannemora Drive, Sheffield, S9 5DF | | Map & Directions |
| Peter Ingram | 01709 578231 | | Units 3, 4 & 5, Old Market Square, Mexborough, S64 9QA | | Map & Directions |
| A P Goodwin Ltd | 01246 220420 | | 6 Heather Close, Calow, Chesterfield, S44 5TJ | | Map & Directions |
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