What is CSignum?
Founded in 2020 and headquartered in the United Kingdom, CSignum specializes in enabling the transmission of data through the challenging water-air boundary, water column, seabed, and subsea structures. The company's proprietary HydroFi technology is designed to overcome the limitations of traditional communication methods in aquatic environments, positioning CSignum as a key innovator in the bluetech and underwater communications sector.
How much funding has CSignum raised?
CSignum has raised a total of $8M across 1 funding round:
Series A
$8M
Series A (2025): $8M with participation from Archangel Ventures, Par Equity, SeaAhead, Scottish Enterprise, Deep Future, Raptor Group Holdings, and British Business Investments
Key Investors in CSignum
Archangel Ventures
Archangel Ventures is a technology-focused firm based in London, United Kingdom, known for investing in a diverse range of ventures and commercial businesses.
Par Equity
Par Equity is a venture capital firm based in Edinburgh and Leeds, specializing in deep tech and enterprise software, with a focus on Seed to Series A investments in high-growth technology companies.
SeaAhead
SeaAhead is dedicated to advancing bluetech ventures, supporting startups from Pre-Seed to Series A stages with scalable ocean technologies, and fostering ocean innovation through collaboration and investment.
What's next for CSignum?
The recent major strategic investment, classified as a Series A round, indicates CSignum is poised for significant scaling and market penetration. This capital infusion is expected to accelerate product development, expand operational capabilities, and solidify its market position. The company's focus on enabling robust underwater data transfer suggests potential applications in marine research, offshore energy, subsea exploration, and defense, all areas experiencing growing demand for reliable connectivity.
See full CSignum company page
