| Abs Security Services Ltd | 01709 373424 | | Po Box 638, Rotherham, S60 9BQ |  Map & Directions |
| P N Alarms | 01709 700390 | | 267 Wickersley Road , Rotherham, S60 4JS | | Map & Directions |
| Security Blinds Ltd | 01709 363535 | | Hope Street, Rotherham, S60 1LH | | Map & Directions |
| Direct Link Security Ltd | 01709 821255 | | 125 Duncan Street , Brinsworth, Rotherham, S60 5DD | | Map & Directions |
| Attendo Systems Ltd | 01709 389300 | | Unit 1, Centurion Business Park, Bessemer Way, Rotherham, S60 1FB | | Map & Directions |
| Elite Contract Security Ltd | 01709 382120 | | Elite House, 83-85 Badsley Moor Lane, Rotherham, S65 2PH | | Map & Directions |
| Orbital Communications | 01226 388157 | | 11 Fountain Parade, Mapplewell, Barnsley, S75 6FW | | Map & Directions |
| G-Teck Electrical | 0114 287 4002 | | 27 Eden Grove, Swallownest, Sheffield, S26 4TP | | Map & Directions |
| Smart Alarms | 0114 234 5513 | | 153 Middlewood Road, Sheffield, S6 4HB | | Map & Directions |
| Vault Vision Security | 01623 812722 | | Systems House, The Hill, Glapwell, Chesterfield, S44 5NB | | Map & Directions |
| Securitec | 01226 732021 | | The Magnolias, Burton Grange, Barnsley, S71 5QD | | Map & Directions |
| S S Security Co Ltd | 0114 258 6187 | | 225 Handsworth Road, Handsworth, Sheffield, S13 9BH | | Map & Directions |
| Securicom Systems Ltd | 0114 247 7794 | | 4 Hayes Court, Halfway, Sheffield, S20 4TS | | Map & Directions |
| Abacus Security Systems | 01246 813800 | | 1 Bowdon Avenue, Barlborough, Chesterfield, S43 4JE | | Map & Directions |
| Defence Shutters Services | 0114 244 1178 | | 411 Petre Street, Sheffield, S4 8LL | | Map & Directions |
| Bell Guarding | 0870 240 6214 | | 1 Orgreave Drive, Sheffield, S13 9NR | | Map & Directions |
| Bell Guarding Ltd | 0870 240 6214 | | 400 Cricket Inn Road, Sheffield, S2 5AX | | Map & Directions |
| A & A Services | 0114 287 2787 | | 22 Laycock Avenue, Aston, Sheffield, S26 2FU | | Map & Directions |
| C L Brookes Ltd | 01246 232033 | | 69a Cotterhill Lane, Brimington, Chesterfield, S43 1NL | | Map & Directions |
| A M Security Fabrications | 01246 827009 | | Unit 5a, M1 Markham Lane, Commerce Park, Duckmanton, Chesterfield, S44 5HS | | Map & Directions |
| Pyronix Ltd | 01709 700100 | | Pyronix House, Braithwell Way, Hellaby, Rotherham, S66 8QY | | Map & Directions |
| Shield Alarms Security Centre | 0114 258 8443 | | 629 Chesterfield Road, Sheffield, S8 0RX | | Map & Directions |
| Pro-Guard Security Yorkshire Ltd | 0114 239 3060 | | 290 Hurlfield Road, Sheffield, S12 2SL | | Map & Directions |
| Security & Facilities Managment Services Ltd | 0870 241 8423 | | Securities House, 12 Pond Street, Chesterfield, S40 2LE | | Map & Directions |
| Back Stage Security | 0114 221 6888 | | 159 Broad Oaks, Sheffield, S9 3HH | | Map & Directions |
| Minder Alarm Co | 01226 370100 | | 1 Market Place, Penistone, Sheffield, S36 6DA | | Map & Directions |
| C M G Manufacturing | 0114 231 6673 | | 1 Hoyland Road, Sheffield, S3 8AB | | Map & Directions |
| R Ladlow | 01226 764991 | | 30 Middlecliffe Drive, Crow Edge, Sheffield, S36 4HB | | Map & Directions |
| Mayson Security Services Ltd | 0114 258 3791 | | 64-82 Broadfield Road, Sheffield, S8 0XL | | Map & Directions |
| Medicare Systems Ltd | 01909 542828 | | Unit 11 Carlton Phoenix Industrial Estate, Kilton Road, Worksop, S80 2EE | | Map & Directions |
| P A Protection Services | 0114 281 4848 | | Unit 2, 111 Halifax Road, Sheffield, S6 1LB | | Map & Directions |
| S D E Electrical | 0114 234 3097 | | 3 Oldfield Avenue, Stannington, Sheffield, S6 6DQ | | Map & Directions |
| Comtech Services Ltd | 01226 289444 | | Burgess House, 68 Doncaster Road, Barnsley, S70 1TL | | Map & Directions |
| Automatic Security Installations | 01246 269770 | | Foxwood Way, Foxwood Industrial Park, Chesterfield, S41 9RN | | Map & Directions |
| Micro Alarms Ltd | 0114 240 1151 | | Thorncliffe Mews, Newton Chambers Road, Thorncliffe Park Estate, Chapeltown, Sheffield, S35 2PH | | Map & Directions |
| Alite Services | 0114 279 8485 | | Unit 20b Prospect House, City Road, Sheffield, S2 5HH | | Map & Directions |
| Securite Security Systems | 01709 702997 | | 160 Bawtry Road , Bramley, Rotherham, S66 2TS | | Map & Directions |
| M B Alarms & Electrical | 01226 207320 | | 17 Falmouth Close, Barnsley, S71 2QQ | | Map & Directions |
| Allsafe Security | 01909 569402 | | 7 Grasmere Close, Anston, Sheffield, S25 4GF | | Map & Directions |
| Vigil Security Systems | 0114 267 8881 | | 158 Crookes, Sheffield, S10 1UH | | Map & Directions |
| Security Camera Systems Ltd | 01246 297567 | | 18 Upland Rise, Chesterfield, S40 2DD | | Map & Directions |
| Chapeltown Alarms | 0114 286 9094 | | Westwood Road, The Old Warehouse, High Green, Sheffield, S35 4LE | | Map & Directions |
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