OOKUMA DIAMOND DEVICE Co., Ltd.
PrivateLast Round
Early Funding
Oct 17, 2024
Total Funding Raised
$29.99M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
OOKUMA DIAMOND DEVICE Co., Ltd. operates in Frontier & Industrial Tech and is based in Japan. Its latest recorded funding round was an Early Funding round in October 2024.
OOKUMA DIAMOND DEVICE Co., Ltd. is a semiconductor company that develops and manufactures diamond semiconductor devices designed for high radiation and high-temperature environments, targeting applications in satellite communications, 5G base stations, and nuclear decommissioning.
Sector
Frontier & Industrial Tech
Verticals
Semiconductors, Advanced Materials, Defense Tech, Satellite Communications, 5G Infrastructure
Business Model
B2B
Customer Profile
Hardware Sales, Government Contracts
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
OOKUMA DIAMOND DEVICE Co., Ltd. Comparables
Compare OOKUMA DIAMOND DEVICE Co., Ltd. with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Power Diamond Systems | 80% | |
| Diamfab | 78% | |
| VISION IV Corporation | 77% |
For institutional investors. Book with your work email.
OOKUMA DIAMOND DEVICE Co., Ltd. Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Early Funding | Oct 17, 2024 | ||||
| Debt | Feb 15, 2024 | ||||
| Seed | May 24, 2023 |
For institutional investors. Book with your work email.
Key People
Founding team and executive leadership
For institutional investors. Book with your work email.
OOKUMA DIAMOND DEVICE Co., Ltd. Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| GLOBIS Capital Partners | Seed, Early Funding |
| SBI Shinsei Corporate Investment | Early Funding |
| Coral Capital | Early Funding, Seed |
| aSTART Co., Ltd. | Early Funding |
| Joyo Bank, Ltd. | Early Funding |
| 株式会社FFGベンチャービジネスパートナーズ | Early Funding |
| Shinsei Corporate Investment | Early Funding |
For institutional investors. Book with your work email.
Market signals
Structured signals derived from secondary market and firmographic data.
- Sep 11, 2026
Monthly visitors increased 34% MoM.
- Jul 24, 2026
Monthly visitors increased 58% MoM.
For institutional investors. Book with your work email.
OOKUMA DIAMOND DEVICE Co., Ltd. Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
Book a demoFor institutional investors. Book with your work email.
Frequently Asked Questions
Common questions about OOKUMA DIAMOND DEVICE Co., Ltd.'s valuation, stock price, and market status.
Is OOKUMA DIAMOND DEVICE Co., Ltd. a public or private company?
OOKUMA DIAMOND DEVICE Co., Ltd. is a private company.
What is the current stock price of OOKUMA DIAMOND DEVICE Co., Ltd.?
OOKUMA DIAMOND DEVICE Co., Ltd. is a private company, so its shares have no public market price. Caplight tracks OOKUMA DIAMOND DEVICE Co., Ltd.'s secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is OOKUMA DIAMOND DEVICE Co., Ltd. worth (valuation)?
Valuation information for OOKUMA DIAMOND DEVICE Co., Ltd. is not publicly available.
Can I buy OOKUMA DIAMOND DEVICE Co., Ltd. stock?
OOKUMA DIAMOND DEVICE Co., Ltd. shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was OOKUMA DIAMOND DEVICE Co., Ltd.'s last funding round?
OOKUMA DIAMOND DEVICE Co., Ltd.'s most recent funding round was Early Funding on October 17, 2024.
Who are the main investors in OOKUMA DIAMOND DEVICE Co., Ltd.?
Key investors in OOKUMA DIAMOND DEVICE Co., Ltd. include GLOBIS Capital Partners, Coral Capital, Coral Capital.
Will OOKUMA DIAMOND DEVICE Co., Ltd. IPO soon?
No public IPO plans have been announced for OOKUMA DIAMOND DEVICE Co., Ltd..
How can I track OOKUMA DIAMOND DEVICE Co., Ltd. secondary market activity?
Caplight tracks bids, offers, and trades in OOKUMA DIAMOND DEVICE Co., Ltd.'s shares on secondary markets.