| Circuit Services Ltd | 01332 384244 | | 22 St. Pauls Road, Derby, DE1 3RS |  Map & Directions |
| Bulldog Intruder Detection Systems Ltd | 01332 360220 | | 29 Arthur Street, Derby, DE1 3EF | | Map & Directions |
| Security Alert Ltd | 01332 367453 | | 17 St. James Street, Derby, DE1 1RF | | Map & Directions |
| Sharp | 01332 298833 | | The Old Courthouse, St. Peters Churchyard, Derby, DE1 1NN | | Map & Directions |
| Kings Armoured Security Services | 01332 346733 | | Unit 4 Boars Head Industrial Park, Clarke Street, Derby, DE1 2BU | | Map & Directions |
| East Midlands Security Services | 01332 294442 | | 24a Great Northern Road, Derby, DE1 1LR | | Map & Directions |
| Repton Training Ltd | 01332 200744 | | Sitwell House, Babington Lane, Derby, DE1 2JT | | Map & Directions |
| Acorn Security Systems | 01332 370561 | | Royal Insurance Building, 6 The Strand, Derby, DE1 1BA | | Map & Directions |
| Landlord Enterprises | 01283 216685 | | 3 Ashby Road, Woodville, Swadlincote, DE11 7BZ | | Map & Directions |
| Sentinel Security | 01283 552600 | | Unit 6, Boardman Road, Boardman Industrial Estate, Swadlincote, DE11 9DL | | Map & Directions |
| Henshaws Security | 01773 743658 | | 90A Heanor Road , Codnor, Ripley, DE5 9SF | | Map & Directions |
| Keepsafe Security Installations Ltd | 01773 861071 | | 60 The Common, South Normanton, Alfreton, DE55 2EN | | Map & Directions |
| Safe Sec Security | 01283 497114 | | Equity House, Watson Street, Burton On Trent, DE14 3AH | | Map & Directions |
| Elite Security Services Ltd | 01332 383630 | | Suite 1, 2, Bateman Court, Bateman Street , Derby, DE23 8JQ | | Map & Directions |
| Security Alert Ltd | 01332 208090 | | 42 Wiltshire Road, Derby, DE21 6EX | | Map & Directions |
| E J Security | 01332 754334 | | 1234 London Road, Alvaston, Derby, DE24 8QP | | Map & Directions |
| T W Electrical | 01283 219534 | | 340 Burton Road , Midway, Swadlincote, DE11 7ND | | Map & Directions |
| Building Technology Services | 01283 566977 | | Dallow Street, Burton On Trent, DE14 2PQ | | Map & Directions |
| A E S Radionic Security Systems | 01283 790819 | | 36a Main Street, Alrewas, Burton On Trent, DE13 7AA | | Map & Directions |
| Secure Alarm Co Ltd | 01332 866689 | | Malcolm Street, Derby, DE23 8LT | | Map & Directions |
| Lightsimple Ltd | 0845 056 3469 | | 34 Eden Close, Hilton, Derby, DE65 5NL | | Map & Directions |
| A K Security | 01332 518070 | | 12 Hailsham Close, Mickleover, Derby, DE3 0PE | | Map & Directions |
| M T S | 0115 930 5970 | | 2 Hurley Court, West Hallam, Ilkeston, DE7 6LG | | Map & Directions |
| Riber Security & Investigations Ltd | 01629 583260 | | 69 Smedley Street East, Matlock, DE4 3FQ | | Map & Directions |
| L & D Electrics | 01283 544136 | | 37 Newton Leys, Burton On Trent, DE15 0DW | | Map & Directions |
| Andrews Fire & Security Ltd | 01283 791919 | | 2a Station Yard, Alrewas, Burton On Trent, DE13 7BD | | Map & Directions |
| Attendo Systems | 01332 363702 | | Unit 3, Stores Road, Derby Trading Estate, Derby, DE21 4BE | | Map & Directions |
| Am 2 Pm Security Systems Ltd | 01332 754634 | | 14 Willow Croft, Boulton Moor, Derby, DE24 5AH | | Map & Directions |
| Century Electronic Security Ltd | 01530 515039 | | 6 High Street, Measham, Swadlincote, DE12 7HR | | Map & Directions |
| Mace-Electrical & Security Installations | 0808 166 2706 | | Unit 1 Wharf Road Industrial Estate, Wharf Road, Burton On Trent, DE14 1PZ | | Map & Directions |
| Start Secure Ltd | 0845 230 3433 | | 38 Hardy Barn, Shipley, Heanor, DE75 7JA | | Map & Directions |
| M & R Electrical Ltd | 01543 416663 | | 5 Hadley End, Yoxall, Burton On Trent, DE13 8PF | | Map & Directions |
| Midland Security Systems | 01332 296664 | | 544a Burton Road, Littleover, Derby, DE23 6FN | | Map & Directions |
| Vistek Security | 01332 835025 | | 204 Alfreton Road, Little Eaton, Derby, DE21 5AB | | Map & Directions |
| Safe-Sec Ltd | 01283 540025 | | Unit 13, Centrum One Hundred, Faraday Court, Burton On Trent, DE14 2WX | | Map & Directions |
| Renaissance Security | 01773 767686 | | 19 Church Street, Heanor, DE75 7AH | | Map & Directions |
| Specialized Security Solutions Ltd | 01332 280350 | | The Old Barn, 229 Derby Road, Spondon, Derby, DE21 7LW | | Map & Directions |
| Gee Security Ltd | 01773 546606 | | 100A High Street , Alfreton, DE55 7BE | | Map & Directions |
| Swift Fire & Security Ltd | 0115 949 9449 | | 6/10 Rising Lea, Derby Road, Risley, Derby, DE72 3SS | | Map & Directions |
| Samson Technology | 01332 678877 | | 47 Chaddesden Park Road, Derby, DE21 6HE | | Map & Directions |
| Keepsafe Security Services Ltd | 01773 603453 | | Keepsafe House, Shaw Street, Riddings, Alfreton, DE55 4EY | | Map & Directions |
| Eagle Security Systems Ltd | 0115 944 1234 | | Galtee House, 1 Heanor Road, Ilkeston, DE7 8DY | | Map & Directions |
| Secure Alarm Co | 0870 042 9999 | | Unit 28, Shaftesbury Street South, Derby, DE23 8YH | | Map & Directions |
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