Unassailable Fit & Forget Pressure Moulded Cable Systems for Hostile Environments

About SMI

SMI creates the central nervous systems of platforms operating in hostile environments, including naval ships, submarines, aircraft, marine renewable power generation and transport.

Our bespoke pressure moulded cable harness systems, through-hull penetrators and connectors reliably connect a platform’s systems throughout their life, ensuring operators have the performance and control they require to optimise platform effectiveness. 

With our right first time, ‘fit and forget’ approach, system refit and maintenance requirements are greatly reduced, maximising platform availability and minimising through life costs.

SMI has an unblemished record for reliability, with over 20,000 installations and zero failures.

Multi-skilled account management teams work with customers from project initiation to offer bespoke, precise, best of breed solutions. Fully supported by in-house design and engineering teams, plus state-of-the-art JIT manufacturing facilities, to provide timely delivery with ‘right first time’, every time deployment.

Designed for purpose and produced to the very highest standards, our molten pressure moulded cable systems are manufactured with carefully selected materials, including Polyurethane, Polyethylene and Elastomers, to form the highest integrity, situational resilient, dual jacketed connections for hostile environment deployment.

SMI connector products

We are the preferred supplier for through-hull penetrators and connectors to the Royal Navy’s nuclear submarine and surface fleets, in addition to installations in aerospace, energy and transport sectors. ISO 9001:2015 approved, SMI is the only company to have 30 years of continuous Capability Approval certification from the UK’s Ministry of Defence.


bespoke,  precise,  right first time,  every time,  fit and forget!

Contact us to find out more about our ‘fit and forget’ cable & connector solutions

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