FR · artificial intelligence · bitcoin · blockchain

Who invested in Capital B

2 rounds we have observed, with the investors named in each. Every figure below came from a named source, and where the company reported the raise to the SEC itself, that is shown beside it.

2
rounds observed
5
investors named
$18M
reported across those rounds
May 2026
most recent

The rounds

Undisclosed round · May 2026 · $18M

Maxim Group lead, Adam Back, Blockstream Capital Partners, TOBAM, Marex

Reported by Ventureburn

Undisclosed round · Aug 2025 · €2.2M

Adam Back lead

Reported by Silicon Canals

Everyone who backed them

Missing a round, or an investor who was in one? Tell us.