Our Story

For over 25 years, CSL has been a leading provider of Critical Connectivity.

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25 years of connectivity

CSL was founded in 1996, as a UK alarm signalling provider. Today, we have over 2.5 million managed connections supporting mission-critical IoT applications across Europe, and we are continuing to grow and innovate.

We know that business and mission-critical end users depend on solutions that provide the highest levels of security and reliability. That is why our expert team are constantly innovating to provide the most resilient and cyber-secure connectivity solutions on the market. 

The sectors we work in and applications we connect are at the highest end of critical communications. Our solutions have been deployed at scale in markets including security, telecare, critical national infrastructure, automotive and retail.

Our Mission

To be the number one Critical IoT Connectivity Provider. 

CSL through the years...

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