CSignum in £6m move to tackle world's most challenging environments

The Herald Scotland

25-04-2025

A company founded in Edinburgh in 2020 believes it has developed a solution for transmitting data through water, ice, soil, rock and concrete, and has raised £6 million in funding to expand its engineering team, advance its product portfolio, and strengthen its market presence.
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The funding round was led by Archangels, Par Equity and Scottish Enterprise on behalf of CSignum, which has developed a solution called EM-2 that uses electromagnetic field signalling (EMFS) to achieve results which it says are unmatched by any other wireless technology to date. Other existing investors including British Business Investment, Raptor Group, Deep Future, SeaAhead's Blue Angel Network, and a number of notable individual US investors also provided follow-on support.
'This investment reflects the growing recognition of the critical need for innovative communication solutions in the underwater IoT sector," CSignum chief executive Jonathan Reeves said.
"The support from our investors will allow us to scale our operations, enhance our product offerings and help industries worldwide manage their resources more effectively. We are grateful for their trust and excited to shape the future of underwater communication."
The company also offers CSignum Cloud, providing data services to complement its wireless systems. Its dashboard and analytics are successfully deployed on several river water quality monitoring projects.
Ahead of upcoming deadlines for environmental regulatory compliance, including large-scale real-time monitoring mandates under the AMP8 initiatives, CSignum is already working with customers in the UK, EU and US markets. The company plans to add additional staff in the UK, USA, and EU over the next year as it continues to scale its operations.
"CSignum's ability to deliver reliable and cost-effective communication solutions for challenging environments sets them apart in the market," said Claire Clamm, investment manager at Par Equity.
"This funding will accelerate their journey to becoming a global leader in underwater data transmission. We are excited to partner with them as they expand their reach and capabilities."