Standards and accreditations
The accreditations TDM holds.
Rail supplier qualification, quality, environmental, health and safety, information security and electrical approvals.
RISQS Verified
Railway Industry Supplier Qualification Scheme verification
RISQS Audited
Railway Industry Supplier Qualification Scheme audit
ISO 9001
Quality management, UKAS accredited certification
ISO 14001
Environmental management, UKAS accredited certification
ISO 45001
Occupational health and safety management, UKAS accredited certification
ISO 27001
Information security management, UKAS accredited certification
SSIP Supplier
Safety Schemes in Procurement member scheme assessment
NICEIC Approved Contractor
Electrical installation contractor approval
NICEIC Domestic Installer
Domestic electrical installation registration
Achilles Link-up Silver
Rail supply chain community membership
Achilles Sustainability
Sustainability assessment badge
Ask TDM for a current certificate.
- Project enquiryNew station systems work: CCTV, customer information systems, Help Points, public address, operational telecoms, control rooms, and supporting infrastructure.
- Design enquiryDesign-only commissions for station systems: survey, reference design for Approval in Principle, and detailed design.
- Maintenance enquiryPlanned and corrective maintenance of Help Points and station information and security systems.
- Product enquiryTDM Help Points, replacement kits, and TDM NIS.