Bathgate, United Kingdom · Founded 2020 · Privately Held (backing)
Developer of a wireless communication system designed to provide data transmissions across the water-air boundary. CSignum is based in Bathgate, United Kingdom and was founded in 2020. Its last reported valuation was $9.8 million in Apr 2025. It has raised $9.5 million.
Last reported valuation
$9.8M
Oct 2026
Priced at
—
Total raised
$9.5M
Last round
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Cap table — not yet on record
CSignum's share-class structure hasn't surfaced in our sources yet. Cap tables are assembled from certificates of incorporation, round filings, and disclosures as they land.
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·The complete investor list: 13 names
·Watch CSignum: the Monday email on marks, rounds and moves
