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Contact Us

Boston Office (Corporate Headquarters, Operations)
Fidelis Security Systems
1601 Trapelo Road, Suite 270
Waltham, MA 02451

Directions

Main: 1.800.652.4020 or 617.275.8800
Fax: 781.890.2760


Bethesda Office (Headquarters: Engineering, Federal Sales)
Fidelis Security Systems
4416 East West Highway, Suite 310
Bethesda, MD. 20814

Directions

Main: 1.800.652.4020 or 301.652.7190
Fax: 301.652.7097


EMEA Office(s) - London, UK

Main: +44 207 0232748
Email: emea@fidelissecurity.com


Customer Support
Toll-free: 1.800.652.4020
Local: 301.652.7190
Hours: 9am – 5pm (U.S., EST)
Email: support@fidelissecurity.com
Web: https://portal.fidelissecurity.com