CST Global is an independent, volume-producer of III-V compound semiconductors for the fabrication of photonics products.

CST Global provides both a custom foundry service, as well as a range of high-volume, standard laser products for the optical communications markets. We are an active partner in the UK and European, Technology Consortium Programme.

We work with leading companies around the world in the Telecommunications, PON, Industrial, Defence and Healthcare markets.

About Us

Technology Capability

Custom Solutions

CST Global has developed a unique, pre-qualified process library, associated with each platform. This allows us to produce products to market requirements (such as Telecordia), reducing risk and lead-times for our customers.

Foundry Solutions

CST Global is an ISO-certified and fully compliant foundry. We currently employ 68 staff in chip fabrication at our facility in Hamilton, Glasgow. We have an ongoing, active research and development programmes in various technology areas.


ISO 9001 : 2015

CST Global has been ISO 9001 certified since 2002.

ITU GR 468

Qualification testing facilities. The international standard for Laser devices for Telecom systems (requiring 5000 hour life testing under stressed conditions).


Qualification on 1310nm and 1550nm devices.

ISO 14644-1

ISO 14644-1 class 4 clean room conformance.



Established as a III-V incubator company, spun from Glasgow and Strathclyde Universities.


Funding secured to become private sector owned. Established as first Foundry Service provider in the UK.


Second round funding to expand manufacturing.


Acquisition of Intense UK with 20,000 square feet clean room facilities and 2", 3" and 4" wafer capabilities.


Acquisition of Kamelian manufacturing facilities.


Year-on-year growth: 15%. Staff head count: 68.

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