# Mizuho Financial Group

> Mizuho Financial Group is a VC fund backing Financial Services and Energy. See 22 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Otemachi, Japan
- Total investments: 22
- Last investment: Nov 2025
- Lead investor: 23%
- Last fund: Jul 2023
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/company/%EF%BC%88%E6%A0%AA%EF%BC%89%E3%81%BF%E3%81%9A%E3%81%BB%E3%83%95%E3%82%A3%E3%83%8A%E3%83%B3%E3%82%B7%E3%83%A3%E3%83%AB%E3%82%B0%E3%83%AB%E3%83%BC%E3%83%97/
- Website: http://www.mizuho-fg.co.jp
- Facebook: https://www.facebook.com/106064816166063

Mizuho Financial Group is a VC fund in Otemachi focused on Financial Services and Energy. Mizuho Financial Group, Inc. is a bank holding company which manages and engages in ancillary operations related to the management of its legally–owned subsidiaries as defined by the Japanese Banking Act. Its activities include streamlining group management functions, creating synergies across various business fields and capabilities, andleveraging the defining strengths and characteristics of the Mizuho group.

## Contacts

5 contacts available for Mizuho Financial Group. Shizune tracks 6 team members at Mizuho Financial Group. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/mizuho-financial-group?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Post-IPO Debt | $350M–$5B |
| Debt Financing | $258M–$1.1B |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Financial Services | 5 | 23% |
| Energy | 4 | 18% |
| Finance | 4 | 18% |
| Renewable Energy | 4 | 18% |
| FinTech | 3 | 14% |

52 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Debt Financing | 5 | 23% |
| Funding Round | 4 | 18% |
| Post-IPO Debt | 4 | 18% |
| Series A | 3 | 14% |
| Venture - Series Unknown | 3 | 14% |

8 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Japan | 9 | 41% |
| United States | 5 | 23% |
| Australia | 2 | 9% |
| China | 1 | 5% |
| Qatar | 1 | 5% |

8 countries tracked in total.

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Christopher Nam | Managing Director, Head of Internet & Digital Media investment banking | 0 | https://shizune.co/investors/profile/christopher-nam |
| Ikuma Ueno | Senior Digital Strategist | 0 | https://shizune.co/investors/profile/ikuma-ueno |
| Masahiko Kato | Senior Technical Officer | 0 | https://shizune.co/investors/profile/masahiko-kato |
| Masato Kaneda | Deputy General Manager | 1 | https://shizune.co/investors/profile/masato-kaneda |
| Toru Morinishi | Senior Vice President, Strategic Planning Department | 0 | https://shizune.co/investors/profile/toru-morinishi |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Akaysha Energy | Akaysha Energy offers full-cycle development for projects including Battery Energy Storage Systems (BESS) and renewable energy. | $299.4M | Debt Financing | Nov 05, 2025 |  |
| AT&T | AT&T is a telecommunications company that provides wireless communications, local exchange, and long-distance services for consumers and businesses in the United States and internationally.The company offers its services in two segments: wireless and wireline. Its wireless segment offers various wireless voice, data, text, and otherservices. This segment sells various handsets, wirelessly-enabled computers, and wireless data cards for personal computers through its owned stores, agents, and third-party retail stores. It also sells accessories comprising carrying cases, hands-free devices, batteries, battery chargers, and other items to consumers as well as to agents and third-party distributors. As of December 31, 2013, this segment served approximately 110 million wireless subscribers.The company’s wireline segment provides data services such as switched and dedicated transport, DSL internet access, network integration, managed web hosting, packet, and enterprise networking services as well as local, interstate, and international wholesale networking capacity solutions to other service providers. This segment also offers voice services consisting of local and long-distance services; wholesale switched access services to other service providers; and outsourcing and integration services as well as CPE and government-related services. This segment has served approximately 12 million retail consumers, 10 million retail businesses, and 2 million wholesale access lines.AT&T is headquartered in Dallas, Texas. | $5B | Post-IPO Debt | Sep 19, 2025 |  |
| RingCentral | RingCentral's cloud-based communication and collaboration platform offers a comprehensive set of capabilities that unify voice, business messaging, team collaboration, video conferencing, and online meetings.RingCentral revolutionizes the power of the cloud to help companies across the globe work smarter, radically improving the waybusinesses partner with customers and co-workers. They offer nimble business communication solutions, used in more than 350,000 organizations worldwide, that rapidly scale as enterprises grow. It’s a capable platform that offers more than VoIP phone service or cloud PBX. They deliver complete unified communications as a service (UCaaS)—the kind of solutions that integrate seamlessly within your current application and framework, without expensive on-premise hardware or hassles. Bridging the divide across multiple devices—including smartphones, tablets, computers, and desk phones—RingCentral solutions provide today’s mobile workforce with the flexible communication tools needed to get the job done right. RingCentral helps small businesses manage mobile, fax, and e-mail communications. Its core product offering includes RingCentral Office, RingCentral Professional, and RingCentral Internet Fax, with services provided in the US, Canada, and the UK. RingCentral, headquartered in Belmont, CA, is funded by RingCentral Office is a comprehensive Voice over Internet Protocol phone service for small businesses and enterprise companies. This allows customers to connect teams in different locations. RingCentral Office combines a hosted multi-extension business phone system with voice and fax functionality, unlimited calling, and pre-configured phones. This allows businesses to connect teams in different locations.RingCentral Glip provides a single, unified team workspace that empowers customers to work, communicate, and collaborate faster and more effectively than ever before. Emails, scattered discussions, and disjointed resources are drastically reduced as teams share conversations, files, tasks, and calendars. Teams, whether internal or external, can collaborate using their favorite devices anytime, anyplace—all within the Glip team workspace.RingCentral Contact Center is an omnichannel, hosted contact center solution that’s easy to deploy, integrate, and scale. This cloud-based contact center solution connects your business to your customers like never before. Your agents get the data and features needed to deliver professional, effective service, while your customers enjoy better communication and faster response times.RingCentral Professional provides customers with a single local or toll-free number that connects their existing phone lines as virtual extensions. It is equipped with advanced call forwarding and answering rules. Users can also receive calls, transmit faxes and listen to voicemail online through their RingCentral account.RingCentral Fax is an Internet fax product that gives users the ability to send and receive faxes through the Internet, replacing the fax machine. Aside from the ability to transmit documents online, users can also sign and edit their faxes digitally, eliminating the need to print and scan faxes. Users also receive a text and an email message every time a new fax arrives. | $1.2B | Post-IPO Debt | Sep 12, 2025 |  |
| Avantus | Avantus develops large-scale solar and solar-plus-storage projects to drive the adoption of zero-emission energy. Avantus is dedicated to creating sustainable and efficient energy solutions that minimize carbon footprints and promote environmental stewardship. In addition, the company offers smart infrastructure solutions that incorporate advancedtechnologies to improve the performance and reliability of various projects. These solutions include the development of smart grids, intelligent transportation systems, and resilient urban infrastructure, all designed to enhance efficiency and sustainability. | $500M | Debt Financing | Jun 17, 2025 |  |
| MARELLI | MARELLI develops and delivers automotive-grade electronics solutions to address these requirements. The offer features flexible solutions for HMI, telematics, infotainment, body electronics, ADAS, camera-based applications, and perception technologies, always meeting the standards for safety and cyber security requirements. | $1.1B | Debt Financing | Jun 11, 2025 |  |
| Pacific Energy | Pacific Energy is an ASX-listed energy supply business. PEA owns and operates approximately 40 power stations with a total power generation capacity of around 400MW. | $257.9M | Debt Financing | May 27, 2025 |  |
| CoreWeave | CoreWeave offers GPU-based compute resources, storage, and networking capabilities optimized for training and deploying machine learning models. Its platform includes Kubernetes-based environments, managed software services, and tools for monitoring system performance and cluster health. It enables organizations to run large-scale AI workloadsthrough dedicated infrastructure and configurable deployment options. The company supports developers and enterprises by providing scalable resources aligned with the requirements of data-intensive and compute-intensive applications. | $650M | Debt Financing | Oct 11, 2024 |  |
| Zap Energy | Zap Energy's fusion technology stabilizes plasma using sheared flows rather than magnetic fields. Driving electric current through the flow creates the magnetic field, which confines and compresses the plasma. The higher the current, the greater the pressure and density in the plasma. The flow-stabilized Z-pinch approach provides compellingfusion economics and requires less capital than conventional fusion technologies. | $130M | Series D | Sep 26, 2024 |  |
| Smartround | Smartround is a specialized finance management platform for startups and their investors. For start-ups, for entrepreneurs who are not familiar with finance, simply enter the necessary information according to the guide, prepare appropriate financing round, and prepare a function that can simulate and execute a capital increase. Support informationsharing and communication with shareholders even after the capital increase. |  | Venture - Series Unknown | Sep 04, 2024 |  |
| Sakana AI | Sakana AI creates a new kind of foundation model based on nature-inspired intelligence. | $209.3M | Series A | Sep 04, 2024 |  |

10 of 22 investments shown.

## Co-investors
- [Sumitomo Mitsui Banking Corporation](https://shizune.co/investors/profile/sumitomo-mitsui-banking-corporation) — VC Fund, 5 deals together
- [Bank of America](https://shizune.co/investors/profile/bank-of-america) — VC Fund, 3 deals together
- [BNP Paribas](https://shizune.co/investors/profile/bnp-paribas) — VC Fund, 3 deals together
- [Goldman Sachs](https://shizune.co/investors/profile/goldman-sachs) — VC Fund, 3 deals together
- [Morgan Stanley](https://shizune.co/investors/profile/morgan-stanley) — VC Fund, 3 deals together
- [CIBC](https://shizune.co/investors/profile/canadian-imperial-bank-of-commerce) — VC Fund, 2 deals together

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## FAQ

### What does Mizuho Financial Group invest in?

Mizuho Financial Group invests primarily in Financial Services, Energy and Finance startups, most often at Debt Financing and Funding Round stage. Most of the 22 investments tracked by Shizune back companies in Japan. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Mizuho Financial Group's check size?

Mizuho Financial Group typically joins rounds of $350M–$5B at Post-IPO Debt and $258M–$1.1B at Debt Financing. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Mizuho Financial Group participates in.

### How do I contact Mizuho Financial Group?

Public channels for Mizuho Financial Group include LinkedIn, the website linked on this profile and Facebook. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### Who are the partners at Mizuho Financial Group?

The team at Mizuho Financial Group includes Christopher Nam (Managing Director, Head of Internet & Digital Media investment banking), Ikuma Ueno (Senior Digital Strategist) and Masahiko Kato (Senior Technical Officer), among 6 team members tracked by Shizune. The Team section lists each member with their title, investment count and links.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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