Komainu

Companies

Komainu is an institutional digital asset custodian established as a joint venture between Nomura (Japan's largest investment bank), CoinShares (European digital asset manager), and Ledger (hardware wallet leader). Founded in 2018, Komainu provides regulated Bitcoin and digital asset custody for institutional clients including banks, asset managers, and funds, with operations in the UK, UAE, and Japan.

Details

Ceo: Nicolas Bertrand
Public: No
Sector: bitcoin_custody
Known For: Joint venture between Nomura, CoinShares and Ledger; regulated institutional Bitcoin custody
Company Type: Institutional Custodian
Founded Year: 2018
Headquarters: London, United Kingdom
Holdings Date: 2025-01
Holdings Source: Komainu/Blockstream press release, January 2025
Bitcoin Holdings: ~750
Bitcoin Strategy: Established corporate Bitcoin treasury in January 2025 via $75M strategic investment from Blockstream Capital Partners, funded entirely in Bitcoin. Represents ~750 BTC at prevailing prices.
Bitcoin Holdings Note: Joint venture (Nomura/Ledger/GlobalAxiom) — holds client BTC, not own treasury. No public disclosure.

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