Scottish firm CSignum, the provider of wireless technology extending Internet of Things (IoT) communications beneath the surface, has completed its £6 million Series A funding round.

The round was led by Archangels, Par Equity, and Scottish Enterprise, with additional investment from British Business Investment (BBI), Raptor Group, Deep Future, SeeAhead’s Blue Angel Network, and individual US investors.

The investment will support the growth of the firm’s EM-2 family of products, which transmit wireless sensor data from submerged environments to networks above.

Its EM-2 solutions are capable of reliably transmitting data, via patented electromagnetic field signalling (EMFS), through environments including water, ice, soil, rock, and concrete to networks above the surface, which no other wireless method has successfully achieved to date.

Key applications for EM-2 systems include water quality and environmental monitoring, wireless under-ship monitoring, and security applications for critical underwater infrastructure, such as offshore wind turbines and oil and gas platforms.

The Scottish firm, which was founded in 2020, is currently working with customers in the UK, EU, and US markets, to address growing environmental regulatory requirements.

The firm plans to add additional staff in the UK, USA, and EU over the next year as it continues to scale its operations.

“This investment reflects the growing recognition of the critical need for innovative communication solutions in the underwater IoT sector,” said Jonathan Reeves, CEO of CSignum.

“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.”

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Dan McKiddie, investment manager at Archangels, added: “CSignum has developed a truly unique technological breakthrough which could be a game-changer for those industries reliant on securing reliable data from their underwater operations.

“We’re looking forward to supporting the management team in their efforts to scale the business and disrupt the global market for underwater communication.”

Claire Cramm, investment manager at Par Equity, also remarked: “CSignum’s ability to deliver reliable and cost-effective communication solutions for challenging environments sets them apart in the market.

“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.”