Mizuho Financial Group is one of Japan's three major banking conglomerates, known domestically as a "megabank." It was formed in 2000 through the merger of three legacy institutions – Dai-Ichi Kangyo Bank, Fuji Bank, and the Industrial Bank of Japan – and has since grown into one of the largest financial groups in Asia by total assets. As of its most recent annual filings, Mizuho holds approximately ¥216 trillion (~$1.4 trillion USD) in consolidated total assets, making it a systemically important financial institution in Japan and globally. The group operates across commercial banking, investment banking, asset management, and securities, with offices in over 30 countries.
Mizuho's entry into blockchain and digital assets has been measured and institution-first. The group joined the R3 consortium in its early years, participating in enterprise blockchain trials alongside dozens of global banks. Domestically, Mizuho co-developed J-Coin Pay, a QR-code-based digital payment platform built on distributed ledger principles, which launched in 2019 with participation from over 60 regional Japanese banks. The group has also conducted internal trials of a yen-denominated stablecoin on permissioned blockchain infrastructure, coordinating with the Bank of Japan's ongoing CBDC research program. These initiatives reflect a strategy focused on infrastructure and payments settlement rather than speculative token exposure.
On the venture side, Mizuho has allocated capital to fintech and blockchain startups through its corporate venture arm and as a limited partner in third-party funds. The group's direct crypto-native portfolio is small relative to its balance sheet – reflecting both regulatory caution and the conservative posture typical of Japanese megabanks. Public information on individual portfolio company names and deal sizes is limited, as Mizuho does not disclose most minority venture positions in standalone announcements.
Notable investments
- R3 Corda network – Mizuho was an early participating member in the R3 enterprise blockchain consortium, contributing to development of trade finance and interbank settlement use cases on the Corda platform.
- J-Coin Pay – Co-developed digital payments network for the Japanese retail banking sector, with blockchain-adjacent architecture for real-time settlement between member banks.
- Progmat (digital asset issuance platform) – Mizuho is one of the consortium banks backing Progmat, a Japanese platform for issuing security tokens and stablecoins under FSA-regulated frameworks. The platform became a separate entity in 2023 with participation from all three megabanks.
- Trade finance blockchain pilots – Participated in multiple cross-border trade finance experiments using distributed ledger technology in partnership with the Asian Development Bank and regional counterparts.
Specific portfolio counts and additional startup investments are not fully disclosed in public filings. The figure of 7 portfolio companies likely reflects CoinMagnetic's tracked data from deal databases and press coverage rather than Mizuho's own disclosures.
Team
Masahiro Kihara has served as President and Group CEO of Mizuho Financial Group since 2021, succeeding Tatsufumi Sakai. Kihara joined the predecessor Fuji Bank and built his career across Mizuho's corporate and investment banking divisions. The group's digital strategy is overseen by an internal Digital Innovation Division, though named executives leading the crypto and blockchain vertical are not consistently disclosed in English-language public communications. Mizuho's board composition reflects Japan's corporate governance norms – predominantly career bankers with backgrounds in fixed income, trade finance, and international operations. More detail is available in Mizuho's governance disclosures.
Recent activity
In 2023 and 2024, Mizuho accelerated its participation in Japan's regulated digital asset ecosystem. The group backed the formal incorporation of Progmat as an independent entity – a significant structural move, as it positions the stablecoin and security token issuance platform as industry infrastructure rather than a proprietary product. Mizuho also joined the SWIFT-coordinated interoperability experiments for cross-chain settlements, testing connections between its internal systems and tokenized asset networks. In 2025, Mizuho reportedly explored partnerships with Japanese crypto exchanges to offer custody-adjacent services to institutional clients, consistent with the FSA's evolving stance toward regulated digital asset intermediation.
Mizuho's broader outlook on crypto remains cautious but constructive. The group is more likely to grow its digital asset presence through regulated infrastructure plays – stablecoin settlement rails, security token issuance, and interbank blockchain networks – than through direct exposure to volatile crypto assets. Its institutional scale and regulatory relationships in Japan give it a meaningful role in shaping how traditional finance integrates with digital asset markets in Asia, even if its venture portfolio remains modest compared to peers like