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British Business Bank

Activity from announced rounds

Activity in this selectionOct 16, 2026 · Sep 17, 2026
Rounds participated in
1
Confirmed lead rounds
0
All roles disclosed
New companies
1
First participation on record · 0 follow-on
Funding in participating rounds
$3.5M
1 disclosed · full round size, not this investor’s share

By stage

Undisclosed1

By primary sector

Hardware1

By country

United Kingdom1

Rounds

1 in this selection
CSignum

CSignum makes wireless communications technology that lets IoT sensors transmit data from underwater and underground infrastructure without conventional cable runs.

£2.6MFollow-on funding
Participant