Key facts
- Niobium Microsystems’s last known valuation is $21.0M (Jan 2024).
- It has raised $42.1M across 2 recorded rounds; the latest was Early Stage VC ($12.8M) in Mar 2025.
- Notable investors include Alumni Ventures, Korea Development Bank, Fusion Fund, Silicon Catalyst, JobsOhio Ventures — 14 tracked in total.
- Niobium Microsystems has filed 2 Form Ds with the SEC since 2024, most recently Mar 2025 ($12.8M sold to 5 investors).
- Status: Privately Held (backing).
- ·Post-money valuations for all 2 rounds
- ·The complete investor list — 14 names
- ·Watchlist + deal alerts for Niobium Microsystems
Funding rounds
2 roundsAbout Niobium Microsystems
Developer of a hardware accelerator designed to advance computation for a fully encrypted cloud. The company offers specialized processing architecture for fully homomorphic encryption, enabling cloud providers and security-focused enterprises to enhance privacy-preserving computation and strengthen protected data operations.
- Sector
- Information Technology
- HQ
- Dayton, OH, United States
- Founded
- 2021
- Employees
- 50
- Website
- niobium.co/
- Ownership
- Privately Held (backing)
Niobium Microsystems doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Niobium Microsystems shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Niobium Microsystems in its N-PORT filings yet. We sweep new filings monthly.