Secure Systems and Technologies Ltd

Group

Secure Systems & Technologies was the first company accredited under the CESG Formal TEMPEST Certification Scheme (CFTCS), and operates a purpose-built facility combining TEMPEST design, manufacturing and test-and-certification work under one roof, from a 22,000 sq ft site in Gloucester near NCSC Cheltenham. Now part of Spectrum Control's SSIA business unit (alongside Canadian sister brand Emcon), the company designs, tests and certifies TEMPEST, EMC-rated, rugged and secure communications equipment to the SDIP-27 standard via NCSC's CFTCS scheme, for defence, government and NATO customers, with supplier relationships spanning Airbus, Cisco, Dell, HP, L3Harris and others.

Military & Aerospace Testing TEMPEST & Security Testing

Certifications

ISO 9001 ISO 14001 ISO 45001 Cyber Essentials Cyber Essentials Plus

Services

Pre-Compliance Testing EMC Consultancy / Troubleshooting

Standards & Regulations Covered

SDIP-27/2 (NATO TEMPEST)

Accreditations

UKAS TEMPEST (CFTCS)

Industries Supported

Aerospace and Defence

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Brunel Court, Waterwells, Gloucester, GL2 2AL

Last Updated

2026-10-28

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Verification History

28 Oct 2026 — Scheduled verification (Max). Added Pre-Compliance Testing, EMC Consultancy / Troubleshooting, ISO 9001, ISO 14001, ISO 45001, Cyber Essentials, Cyber Essentials Plus.

13 Sep 2026 — Scheduled verification (Max). Added TEMPEST (CFTCS), SDIP-27/2 (NATO TEMPEST). Updated accreditations, company group.

13 Sep 2026 — Scheduled verification (Lite). No changes.

Company Registration Number 04534093

Companies House URL Companies House URL

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