Okuma Diamond Device key facts
- Manufacturing of a diamond semiconductor designed to enable social implementation in areas that require advanced technologies.
- It has raised $28.5M; the latest was Accelerator/Incubator in Aug 2025.
- Notable investors include SMBC Venture Capital, J-Startup, Japan External Trade Organization, Spiral Capital (Tokyo), Globis Capital Partners — 18 tracked in total.
- Status: Privately Held (backing).
Who backs Okuma Diamond Device
18+Membership and data by Private Market View
- ·The complete investor list: 18 names
- ·Watch Okuma Diamond Device: the Monday email on marks, rounds and moves
Okuma Diamond Device funding rounds
No funding rounds for Okuma Diamond Device are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
Okuma Diamond Device investors
18 investors are on record for Okuma Diamond Device, including SMBC Venture Capital, J-Startup, Japan External Trade Organization and Spiral Capital (Tokyo).
About Okuma Diamond Device
Manufacturing of a diamond semiconductor designed to enable social implementation in areas that require advanced technologies. The company offers diamond semiconductors with thermal conductivity, dielectric breakdown, relative permittivity, and mobility, essential for applications such as communication satellites, radar systems, post-5G mobile phone base stations, oil exploration and power plant decommissioning their diamond semiconductors provide high-power utilization, compact size, and lightweight performance, enabling users for addressing the challenges faced by next-generation services like autonomous driving, drones, IoT, blockchain and the metaverse.
- Sector
- Information Technology
- HQ
- Sapporo, Japan
- Founded
- 2022
- Employees
- 27
- Website
- ookuma-dd.com/
- Ownership
- Privately Held (backing)
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Okuma Diamond Device doesn't have a valuation on record yet — one is published once a priced round, a reported valuation, fund marks, or secondary prints surface in our sources. The rest of the record below builds toward it.