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CSignum
West Lothian · 7 known investors
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CSignum develops electromagnetic field-based communication and sensing solutions for underwater, underground, and IoT applications. The company serves industries including oil and gas exploration, manufacturing, medical, and solar sectors.
Founders & leadership
Board
Investors · 7
How we know: the company's own site · Not right? Tell us
How we know: tech.eu · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Deep Future's portfolio page · tech.eu · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: tech.eu · Not right? Tell us
How we know: tech.eu · Not right? Tell us
Also in the syndicate · 2
Funding
SEC filings, press & company announcements$760.5K disclosed across 1 of 4 rounds · 2024–2026
- Undisclosed amountSeries AApr 2025 · 2 sources
Archangels (lead), Par Equity (lead), Scottish Enterprise (lead), British Business Investment (BBI), Deep Future, Raptor Group, SeaAhead’s Blue Angel Network
Source ↗
▶$760.5KraisedSep 2026 · 17 investors · Other TechnologyRule 506(b)
- Jarett CarsonDirector
- Richard Michael Edward HopkinsDirector
- Ewan Lindsey MclellanDirector
- Jonathan ReevesDirector
- Rabindra SoniDirector
- Offering amount
- $760.5K
- Amount sold
- $760.5K
- First sale
- Aug 2026
- Incorporated
- Other, United Kingdom
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
In the news
Frequently asked questions
- What does CSignum do?
- CSignum develops electromagnetic field-based communication and sensing solutions for underwater, underground, and IoT applications. The company serves industries including oil and gas exploration, manufacturing, medical, and solar sectors.
- Who are CSignum's investors?
- CSignum's investors include Bessemer Venture Partners, Archangels, Deep Future, Raptor Group, Scottish Enterprise.
- How much funding has CSignum raised?
- CSignum has disclosed $760.5K raised across 1 of its 4 known rounds.
- Where is CSignum headquartered?
- CSignum is headquartered in West Lothian.