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About Us

Surface Technology International (STI) is a specialist Contract Electronics Manufacturer.

We serve world-class customers in high-reliability industries by providing electronics design and manufacturing solutions in both printed circuit board assembly (PCBA) and full box-build manufacturing.

Founded in 1989, STI specialises in the Aerospace, Defence and Security sectors as well as Energy, Healthcare, Communications and Industrial – particularly higher volume Internet of Things (IoT) products.

STI provides a full set of manufacturing services, from concept design, prototyping and production through to complete box-build, including thermal vibration and full product test. STI also provides full lifecycle support – spares, repairs and long-term obsolescence management.

Technology Manufacturer

Why STI?

Aerospace Electronics

Proven ability to deliver reliable, mission critical products

Military Electronics

Unsurpassed reputation in high reliability market sectors

Electronics Manufacturing

Continued investment in the latest technology and equipment

Manufacturing Experts

Full product design, manufacture and support facilities

Worldwide Electronic Manufacturer Solutions

Global footprint, providing solutions to customers worldwide

Our Values


Customer Focus


Concern for Others