| Lingfield Alarms | 020 8657 9400 | | 12 Audley Drive , Warlingham, CR6 9AH |  Map & Directions |
| Intel Security Systems Ltd | 020 8665 5540 | | 4 Housegarth Court, 14 Hogarth Crescent, Croydon, CR0 2JE | | Map & Directions |
| Initial Electronic Security | 020 8683 1090 | | 20-26 Lombard Business Par Purley Way, Croydon, CR0 3JP | | Map & Directions |
| Crown Security Systems Ltd | 020 8646 3986 | | Unit K2, Mill Green Road, Mill Green Business Park, Mitcham, CR4 4HT | | Map & Directions |
| Securicor Ltd | 01737 558250 | | Falcon Centre, Brighton Road, Coulsdon, CR5 3EA | | Map & Directions |
| Lockstock Fire Security Ltd | 020 8668 2271 | | 104 Brighton Road, Purley, CR8 4DB | | Map & Directions |
| Ffe Fire & Security Ltd | 020 8665 4120 | | Unit 20, Tait Road Industrial Estate, Croydon, CR0 2DP | | Map & Directions |
| A D K Security Services | 020 8686 2999 | | Airport House, Purley Way, Croydon, CR0 0XZ | | Map & Directions |
| Acctive Systems Ltd | 020 8660 3388 | | Redlands Centre, Redlands, Coulsdon, CR5 2HT | | Map & Directions |
| Avantgarde Security | 020 8239 6989 | | 190 Frant Road, Thornton Heath, CR7 7JW | | Map & Directions |
| Capital Security Maintenance Ltd | 020 8651 1122 | | 25 Chapel View, South Croydon, CR2 7LG | | Map & Directions |
| Tjw Electrical Ltd | 01883 341747 | | London & Thames House, 70-72 Croydon Road, Caterham, CR3 6QD | | Map & Directions |
| See U Technology | 020 8684 6735 | | 122 Beddington Lane, Croydon, CR0 4YZ | | Map & Directions |
| Rosecrest Security South London Ltd | 01689 844883 | | 285 King Henrys Drive, New Addington, Croydon, CR0 0AE | | Map & Directions |
| Masterguard Ltd | 020 8777 7588 | | 58 Lime Tree Grove , Croydon, CR0 8AW | | Map & Directions |
| W H S Security Installations | 020 8680 4025 | | 207b Brighton Road , South Croydon, CR2 6EJ | | Map & Directions |
| 24 Seven Security | 020 8665 0123 | | 19 Stratford Road, Thornton Heath, CR7 7QL | | Map & Directions |
| Telecom Security Direct | 020 8407 0012 | | 347 Brighton Road, South Croydon, CR2 6ER | | Map & Directions |
| Foley Uk Ltd | 020 8763 2334 | | Trent House, 65 Whytecliffe Road South, Purley, CR8 2AZ | | Map & Directions |
| Farleigh Consultants Ltd | 020 8688 6799 | | Suffolk House, College Road, Croydon, CR0 1PF | | Map & Directions |
| Southern Area Security | 020 8640 1947 | | 27 Langdale Avenue, Mitcham, CR4 4AJ | | Map & Directions |
| London Clamping Co | 020 8651 0260 | | PO Box 883, South Croydon, CR2 8YT | | Map & Directions |
| Guardian Alarms Ltd | 020 8686 8777 | | 20-22 Sydenham Road, Croydon, CR0 2EF | | Map & Directions |
| Escortsplus Ltd | 020 8681 0620 | | Eurocrown House, Grafton Road, Croydon, CR0 3RP | | Map & Directions |
| Abacus Integrated Systems Ltd | 020 8763 8800 | | Unit 3 Redlands Centre, Redlands, Coulsdon, CR5 2HT | | Map & Directions |
| Alexandra Security | 0870 850 1112 | | 273 King Henrys Drive, New Addington, Croydon, CR0 0AE | | Map & Directions |
| Knight Installations | 0808 155 0820 | | 593 Davidson Road, Croydon, CR0 6DU | | Map & Directions |
| Custodian Security | 020 8689 6633 | | 245 Whitehorse Road, Croydon, CR0 2HQ | | Map & Directions |
| Master Locksmiths | 020 8668 9909 | | 67 Brancaster Lane, Purley, CR8 1HL | | Map & Directions |
| Chubb Guarding Services Ltd | 0870 241 1054 | | 245 Whitehorse Road, Croydon, CR0 2HQ | | Map & Directions |
| New World Security Services | 020 8687 6887 | | The Regency Suite , Justin Plaza 3, 341 London Road , Mitcham, CR4 4BE | | Map & Directions |
|
|
