- Secom (Address: Beech Lodge, Peregrine Rd, Ilford IG6 3SZ)Location: RomfordCategory: Security Companies
- National Security Systems Group (Address: 2, Bourne Court, Unity Trading Estate, Southend Road, Woodford Green IG8 8HD)Location: RomfordCategory: Security Companies
- MEC Security (Address: 6 Ashwells Court, Ashwells Road, Brentwood CM15 9SR)Location: RomfordCategory: Security Companies
- Axe Security (Address: Fairview Avenue, Brentwood CM13 1NS)Location: RomfordCategory: Security Companies
- Vista Security Ltd (Address: 10, Longmarsh Lane, West Thamesmead, London SE28 0LS)Location: RomfordCategory: Security Companies
- Charter Security (Address: Suite 6, Ensign House, Admirals Way, London E14 9XQ)Location: RomfordCategory: Security Companies
- Security Shutters Ltd (Address: Unit 10 Kimberley Works, Billet Road, London E17 5DT)Location: RomfordCategory: Security Companies
- Security Shutters Ltd (Address: Unit 10 Kimberley Works, Billet Road, London E17 5DT)Location: RomfordCategory: Security Companies
- Security Shutters Ltd (Address: Unit 10 Kimberley Works, Billet Road, London E17 5DT)Location: RomfordCategory: Security Companies
- Signal Security Ltd (Address: Conifers House, Sexton Close, Rainham RM13 8BH)Location: RomfordCategory: Security Companies
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