| Lo-Key Security Ltd | 0870 011 2702 | | Po Box 4311, Worthing, BN11 2WB |  Map & Directions |
| Security Protection International Ltd | 01903 213369 | | 19 Windsor Road, Worthing, BN11 2LU | | Map & Directions |
| Wakefield Security Systems Ltd | 01903 823033 | | 146 Ham Road, Worthing, BN11 2QS | | Map & Directions |
| Haven Security Ltd | 01323 643099 | | 55 Firle Road, Eastbourne, BN22 8EE | | Map & Directions |
| Anglo Security | 01273 702500 | | 33 Morecambe Road, Brighton, BN1 8TL | | Map & Directions |
| Asset Protection | 01323 484777 | | Unit E Dittons Business Park, Dittons Road, Polegate, BN26 6HY | | Map & Directions |
| Building Block Video Ltd | 01323 842727 | | Unit 17, Diplocks Way, Apex Park, Hailsham, BN27 3JU | | Map & Directions |
| The Cctv Co | 01273 764750 | | 1 Enterprise House, 83a Western Road, Hove, BN3 1JB | | Map & Directions |
| Adt Fire & Security | 01273 423999 | | Avery House, 69 North Street, Portslade, Brighton, BN41 1DH | | Map & Directions |
| Select Security & Stewarding Ltd | 01273 609312 | | Po Box 66, Brighton, BN1 9WD | | Map & Directions |
| Paxton Access Ltd | 0870 608 0886 | | Home Farm Road, Brighton, BN1 9HU | | Map & Directions |
| Karar Security | 07771 802301 | | 30 Upper Kingston Lane, Southwick, Brighton, BN42 4YP | | Map & Directions |
| First Base Training | 01273 593023 | | 38 Holmbush Way, Southwick, Brighton, BN42 4YD | | Map & Directions |
| Rainer Security Products Ltd | 01903 732211 | | Unit B6, Rudford Industrial Estate , Ford Road , Ford, Arundel, BN18 0BF | | Map & Directions |
| Allied Facilities.Com Ltd | 01903 723999 | | 7 Wickham Business Centre, Harwood Road, Littlehampton, BN17 7AU | | Map & Directions |
| Guardian Hi-Tech Ltd | 01903 709000 | | 44 Brook Lane, Ferring, Worthing, BN12 5JD | | Map & Directions |
| Urban Security Systems | 01273 385446 | | 19 Chalkland Rise, Brighton, BN2 6RJ | | Map & Directions |
| Amber Guarding Services | 01273 555884 | | 9 Birch Grove Crescent, Brighton, BN1 8DN | | Map & Directions |
| Sensor Access Tech Ltd | 01273 242355 | | Westergate Road, Fairway Business Centre, Brighton, BN2 4JZ | | Map & Directions |
| A M Fire & Security Group | 01273 740400 | | Unit 7 English Business Park, Hove, BN3 7ET | | Map & Directions |
| B M Electronics | 01323 643099 | | 55 Firle Road, Eastbourne, BN22 8EE | | Map & Directions |
| Cbss Security Group | 01323 430883 | | 1a West Street, Eastbourne, BN21 4SN | | Map & Directions |
| Security 201 | 01903 242902 | | 332 Goring Road, Goring-By-Sea, Worthing, BN12 4PE | | Map & Directions |
| Mas Systems Ltd | 01323 833860 | | The Oast, Stunts Green, Herstmonceux, Hailsham, BN27 4PN | | Map & Directions |
| City Security Ltd | 01273 688757 | | 25 Oxford Street, Brighton, BN1 4LA | | Map & Directions |
| Seal Security Services | 07980 350324 | | 34 Sandown Close, Eastbourne, BN23 8EF | | Map & Directions |
| Guardian Facilities Ltd | 01903 707700 | | 44 Brook Lane, Ferring, Worthing, BN12 5JD | | Map & Directions |
| Estate Security Ltd | 01323 502892 | | Po Box 2961, Eastbourne, BN22 9YE | | Map & Directions |
| Global Security Management Ltd | 01903 850333 | | Global House, 142 The Street, Rustington, Littlehampton, BN16 3DA | | Map & Directions |
| Ernitec | 01903 263125 | | Columbia House, Columbia Drive, Worthing, BN13 3HD | | Map & Directions |
| Electronic Security Services | 01273 564158 | | 55 Larkfield Way, Brighton, BN1 8EG | | Map & Directions |
| Man Security Sevices Ltd | 0870 444 1254 | | Maple Works, Old Shoreham Road, Hove, BN3 7ED | | Map & Directions |
| A M C Security Products Ltd | 01273 463344 | | 87 Buckingham Road, Shoreham By Sea, BN43 5UD | | Map & Directions |
| Scorpio | 01273 416127 | | 78 Graham Avenue, Portslade, Brighton, BN41 2WL | | Map & Directions |
| C A S S E C Ltd | 01273 417630 | | 5 Crest Way, Portslade, Brighton, BN41 2EY | | Map & Directions |
| Nr Securities Ltd | 01323 509285 | | 42 Winkney Road, Eastbourne, BN22 9LL | | Map & Directions |
| Electrotec | 01323 729420 | | 14 Channel View Road, Eastbourne, BN22 7LT | | Map & Directions |
| East Sussex Security | 01323 848879 | | Unit 1, Bellbanks Road, First Floor, Hailsham, BN27 2AH | | Map & Directions |
| Global Locks & Security Ltd | 01323 831515 | | The Oast, Stunts Green, Herstmonceux, Hailsham, BN27 4PN | | Map & Directions |
| Matrix Security Services Ltd | 01273 720202 | | 128 Church Road, Hove, BN3 2EA | | Map & Directions |
| Haven Security | 01273 586801 | | 86 South Coast Road, Peacehaven, BN10 8SL | | Map & Directions |
| Secure Systems | 01273 583619 | | 63 Fairlight Avenue, Telscombe Cliffs, Peacehaven, BN10 7BS | | Map & Directions |
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