Blockstream CEO Adam Back has invested €7.6 million ($8.8 million) in Capital B, a Euronext Growth-listed company positioning itself as Europe's first dedicated bitcoin treasury firm. The investment follows a separate €21 million private placement the company announced last week, signaling continued institutional confidence in the corporate bitcoin treasury model.
Strategic Bitcoin Accumulation Strategy
Capital B plans to deploy the fresh capital exclusively toward acquiring additional bitcoin for its balance sheet. The company's treasury strategy focuses on increasing bitcoin holdings per share on a fully diluted basis over time, similar to models pioneered by North American firms.
The recent funding rounds will enable Capital B to purchase 376 additional bitcoins, bringing its total holdings to approximately 3,521 BTC from the current 3,145 coins. At current prices, this positions the firm's bitcoin reserves at roughly $242 million, making it the 26th largest publicly traded bitcoin treasury globally according to Bitcoin Treasuries data.
Capital B has built its position rapidly through multiple capital raises during 2026, including a May transaction that added 192 bitcoins for €13 million. The company's last week's €21 million placement included backing from both Back and asset manager TOBAM.
Implications for Blockchain Finance Professionals
The continued growth of corporate bitcoin treasury strategies creates ongoing demand for specialized roles in blockchain finance, corporate development, and treasury management. Professionals with experience in digital asset custody, risk management, and regulatory compliance remain particularly valuable as more European firms explore similar strategies.
However, the treasury model faces headwinds. Several companies have liquidated holdings recently amid bitcoin price volatility, underscoring the importance of sound financial planning in these roles. Even major players like Nasdaq-listed Strategy have faced pressure, while Genius Group recently sold its entire bitcoin position to service $8.5 million in debt before announcing plans for new AI and bitcoin treasuries worth $1.6 billion combined.
For web3 professionals considering opportunities in the bitcoin treasury sector, understanding both the strategic vision and risk management requirements of these positions becomes essential as the model matures across European markets.


