| Security Systems Electrical Ltd | 01293 430416 | | 4 Bremner Avenue, Horley, RH6 8EP |  Map & Directions |
| Regency Security | 01293 862865 | | Felbrook Farm, Ifield Road, Charlwood, Horley, RH6 0DR | | Map & Directions |
| Village Engineering | 01293 863048 | | Betchworth Works, Ifield Road, Horley, RH6 0DZ | | Map & Directions |
| Armourguard Security | 01903 743556 | | Grenfell, Newhouse Lane, Storrington, Pulborough, RH20 3HQ | | Map & Directions |
| Initial Electronic Security | 01444 243428 | | Unit 12 Teknol House, Victoria Road, Burgess Hill, RH15 9LH | | Map & Directions |
| Weare Peter Ltd | 01293 525673 | | 112-116 Hazelwick Road, Three Bridges, Crawley, RH10 1NH | | Map & Directions |
| Sabrewatch Ltd | 01342 870811 | | Charters Towers, Felcourt Road, East Grinstead, RH19 2JG | | Map & Directions |
| As-Tec Security Systems Ltd | 01798 873397 | | 28 London Road, Pulborough, RH20 1AS | | Map & Directions |
| Sentry | 01737 642505 | | 67 London Road South, Merstham, Redhill, RH1 3AX | | Map & Directions |
| I Q Security Ltd | 0845 055 1972 | | The Post House, Brookhill Road, Copthorne, Crawley, RH10 3QJ | | Map & Directions |
| Direct Security Partnership Ltd | 01403 271746 | | 25 Cootes Avenue, Horsham, RH12 2AD | | Map & Directions |
| Smart Guard Security Ltd | 01293 582590 | | Gainsborough House, High Street, Crawley, RH10 1BW | | Map & Directions |
| Rapiscan Systems Ltd | 0870 777 4301 | | X Ray House, 8 Bonehurst Road, Salfords, Redhill, RH1 5GG | | Map & Directions |
| Sonalux Systems | 01342 717691 | | Tanglewood, Hophurst Hill, Crawley Down, Crawley, RH10 4LP | | Map & Directions |
| Lex Tech | 01444 414040 | | Hurst Farm House, Hurstwood Lane, Haywards Heath, RH17 7QX | | Map & Directions |
| Municipal Security Ltd | 01293 851199 | | Grouse Road, Colgate, Horsham, RH13 6HT | | Map & Directions |
| Corps Of Commissionaires | 01293 529813 | | Unit 3 Mill Court, Spindle Way, Crawley, RH10 1TG | | Map & Directions |
| Tcom Security Ltd | 01403 272725 | | 14 Nightingale Road, Horsham, RH12 2NW | | Map & Directions |
| Prestige | 01306 743500 | | Carville House, Station Road, Dorking, RH4 1HQ | | Map & Directions |
| Executive Security Bmm Ltd | 01293 515872 | | International Business Centre, Spindle Way, Crawley, RH10 1TG | | Map & Directions |
| Absolute Protection Ltd | 01293 852277 | | Grouse Road, Colgate, Horsham, RH13 6HT | | Map & Directions |
| Capital Eye Ltd | 01483 280220 | | Dunley Hill Court, Ranmore Common, Dorking, RH5 6SX | | Map & Directions |
| Touchstone Electronics | 01293 530505 | | Unit 2, Whitworth Road, The City Business Centre, Crawley, RH10 9QU | | Map & Directions |
| Scanguard Ltd | 01737 763756 | | 151 Honeycrock Lane, Redhill, RH1 5JR | | Map & Directions |
| A V A Security Systems | 01737 823623 | | 98 Mid Street , South Nutfield, Redhill, RH1 4JH | | Map & Directions |
| Holt Security Systems | 01444 242081 | | 169-171 Lower Church Road, Burgess Hill, RH15 9AA | | Map & Directions |
| Technocare Ltd | 01342 301718 | | Bulrushes Farm Business Centre, Coombe Hill Road, East Grinstead, RH19 4LZ | | Map & Directions |
| Pound Hill Security Ltd | 01293 883821 | | 8 Balliol Close, Crawley, RH10 3TE | | Map & Directions |
| Proguard Protection South East Ltd | 01306 888693 | | 68 Beresford Road, Dorking, RH4 2DG | | Map & Directions |
| Gardiner Security Ltd | 01293 525551 | | 4 Priestley Way, Raleigh Court, Crawley, RH10 9PD | | Map & Directions |
| Kestrel Alarms Ltd | 01403 711000 | | Unit 3 Tristar Business Centre, Star Road, Partridge Green, Horsham, RH13 8RA | | Map & Directions |
| Advance Computer Solutions | 01444 248850 | | 6 The Gilligans, Burgess Hill, RH15 8TD | | Map & Directions |
| Lie Detection Polygraph Test | 0870 874 9860 | | Hophurst Lane, Crawley Down, Crawley, RH10 4LN | | Map & Directions |
| Honeywell Access Systems Ltd | 01444 251181 | | Charles Avenue, Burgess Hill, RH15 9UF | | Map & Directions |
| A1 Electrical & Security Services | 07050 211435 | | Reigate House, 7-11 High Street, Reigate, RH2 9AA | | Map & Directions |
| Secom Plc | 01293 532249 | | Unit 1, The Bell Centre, Newton Road, Crawley, RH10 9FZ | | Map & Directions |
| Transac International | 01737 222525 | | The Old School House, Effingham Road, Reigate, RH2 7JN | | Map & Directions |
| Household Automation | 0870 330 0071 | | Fox Way, Pinkhurst Lane , Slinfold, Horsham, RH13 0QR | | Map & Directions |
| I-Cam Systems | 0870 242 4629 | | Tillershaw, North Common Road, Wivelsfield Green, Haywards Heath, RH17 7RJ | | Map & Directions |
| Group 4 Securicor | 01293 554400 | | The Manor, Manor Royal, Crawley, RH10 9UN | | Map & Directions |
| Eastern Hydraulics | 01444 480666 | | Stairbridge Lane, Bolney, Haywards Heath, RH17 5PA | | Map & Directions |
| P K Security & Electrical | 01403 242540 | | 23a Trafalgar Road, Horsham, RH12 2QD | | Map & Directions |
| Securitas Ltd | 01403 274884 | | Unit 20/21, Guildford Road, Lawson Hunt Industrial Park, Broadbridge Heath, Horsham, RH12 3JR | | Map & Directions |
|
|
