| J Dowd Electrical Services Ltd | 01909 476 428 | | 40 Church Walk, Worksop, S80 2EJ |  Map & Directions |
| J Dowd Electrical Services Ltd | 01909 476428 | | 40 Church Walk, Worksop, S80 2EJ | | Map & Directions |
| The Independent Testing Co | 01909 723931 | | 26 Elmton Road, Creswell, Worksop, S80 4ES | | Map & Directions |
| Viking Research Ltd | 01909 530777 | | 5 Kilton Terrace, Worksop, S80 2DQ | | Map & Directions |
| Hopkinson Electrical Co | 01909 481516 | | 9 Eastgate, Worksop, S80 1RH | | Map & Directions |
| Reactive Electrical Solutions | 01226 286534 | | Unit 10 Zenith Park, Whaley Road, Barnsley, S75 1HT | | Map & Directions |
| G T Electrical | 01246 865726 | | 65 Market Street, Clay Cross, Chesterfield, S45 9JQ | | Map & Directions |
| F Everett | 01226 756220 | | 10 Honister Close, Brampton Bierlow, Rotherham, S63 6BW | | Map & Directions |
| A J Electrical Ltd | 0114 232 0128 | | 559 Loxley Road, Loxley, Sheffield, S6 6RR | | Map & Directions |
| S J D Electrical Services Ltd | 01709 583048 | | 98 Fitzwilliam Street, Swinton, Mexborough, S64 8RW | | Map & Directions |
| P Austin | 01433 620569 | | Soft Water Lane, Bradwell, Hope Valley, S33 9LD | | Map & Directions |
| Grainger Electrical Services Ltd | 01909 477523 | | Dukeries Industrial Estate, Claylands Avenue, Worksop, S81 7BQ | | Map & Directions |
| S & M Howson Ltd | 0114 272 6620 | | Bruce Works, 49 Mowbray Street, Sheffield, S3 8EN | | Map & Directions |
| Dearne Electrical Ltd | 01709 877112 | | 85 Doncaster Road, Wath-Upon-Dearne, Rotherham, S63 7DN | | Map & Directions |
| Ashgate Electrical Services | 01246 271891 | | 13 Sedgemoor Close , Chesterfield, S40 4QD | | Map & Directions |
| D Pearson Ltd | 01226 742622 | | 7 Market Street, Hoyland, Barnsley, S74 9QR | | Map & Directions |
| Ecom Instruments Ltd | 01246 564800 | | Unit 15 Boythorpe Business Park, Dock Walk, Chesterfield, S40 2QR | | Map & Directions |
| Whittaker Electrical Ltd | 01226 244299 | | 214 Pontefract Road, Barnsley, S71 5PN | | Map & Directions |
| S P Electrical & Electronics | 0114 239 9742 | | 496 Richmond Road, Sheffield, S13 8NB | | Map & Directions |
| Electrotest Uk | 01246 558520 | | 19a Albion Road, Chesterfield, S40 1LJ | | Map & Directions |
| Craven Electrical Services | 0114 245 9806 | | 18 Barnsley Road , Thorpe Hesley, Rotherham, S61 2RR | | Map & Directions |
| Parsons Contracting Ltd | 01246 276536 | | 36 Brimington Road, Chesterfield, S41 7UL | | Map & Directions |
| P B Electrical | 0114 244 0879 | | 70 Handsworth Crescent, Handsworth, Sheffield, S9 4BR | | Map & Directions |
| Dave Banks | 01246 567333 | | 9 Harewood Road, Holymoorside, Chesterfield, S42 7HT | | Map & Directions |
| Crowther Electrical | 0114 288 8327 | | 26 Hawthorne Avenue, Stocksbridge, Sheffield, S36 1BL | | Map & Directions |
| E Spencer & Sons | 01433 620781 | | Hallamshire Cottage, Smithy Hill, Bradwell, Hope Valley, S33 9JR | | Map & Directions |
| Foxwood Electrical Ltd | 01246 260458 | | Unit 4, Foxwood Road, Dunston Trading Estate, Chesterfield, S41 9RF | | Map & Directions |
| K & G Electrical Contractors Ltd | 01246 241823 | | Charlesworth Street, Bolsover, Chesterfield, S44 6JH | | Map & Directions |
| D.S. Electrical Ltd | 01246 220499 | | 49 Wentworth Avenue, Chesterfield, S40 3JB | | Map & Directions |
| The Lowe Group | 01709 360621 | | Bradmarsh Business Park, Bow Bridge Close, Rotherham, S60 1BY | | Map & Directions |
| Porter Electrical Co Ltd | 0114 285 2825 | | 2 Baxter Road, Sheffield, S6 1JF | | Map & Directions |
| A M Electrical Services Ltd | 01226 208890 | | Unit 31, Oakwell View, Oakwell Business Centre, Barnsley, S71 1HX | | Map & Directions |
| R U Safe Ltd | 0114 282 3498 | | Aizlewoods Mill, Nursery Street, Sheffield, S3 8GG | | Map & Directions |
| Maple Electrical Services Ltd | 01709 769769 | | Unit C14, Tickhill Road, Aven Industrial Park, Maltby, Rotherham, S66 7QR | | Map & Directions |
| Jennic Ltd | 0114 281 2655 | | Furnival Works, Furnival Street, Sheffield, S1 4QT | | Map & Directions |
| Walker Miller & Co Ltd | 0114 281 2212 | | 2 Walkley Lane, Sheffield, S6 2NY | | Map & Directions |
| D J Electrical Ltd | 01226 200860 | | 51 Wombwell Lane, Barnsley, S70 3NR | | Map & Directions |
| Sheard Electrical | 01226 731535 | | 21 Regent Crescent, Barnsley, S71 3TS | | Map & Directions |
| Bl Electrical Contractors Ltd | 0114 274 7479 | | 35 Greenfield Road, Sheffield, S8 7RR | | Map & Directions |
| Gaddon Consultants | 01226 766999 | | 18 New Royd, Millhouse Green, Sheffield, S36 9NW | | Map & Directions |
| Foilfston Ltd | 01226 383837 | | 27 Windsor Avenue, Darton, Barnsley, S75 5LN | | Map & Directions |
| Ae Parsons Ltd | 01246 276536 | | 36 Brimington Road, Chesterfield, S41 7UL | | Map & Directions |
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