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Niobium Microsystems

Dayton, OH · Founded 2021 · Privately Held (backing)

Developer of a hardware accelerator designed to advance computation for a fully encrypted cloud. Niobium Microsystems is based in Dayton, OH and was founded in 2021. Its last reported valuation was $21 million in Jan 2024. It has raised $42.1 million across 2 recorded rounds; the latest was a $12.8 million early-stage round in Mar 2025.

Last reported valuation
$21.0M
Oct 2026
Priced at
—
Total raised
$42.1M
Last round
Early Stage VC
Mar 2025

Niobium Microsystems key facts

as of Oct 2026
  • Developer of a hardware accelerator designed to advance computation for a fully encrypted cloud.
  • Niobium Microsystems is valued at approximately $21.0M as of Oct 2026 (last reported valuation).
  • 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).
Last reported valuation
LOW confidence
$21.0M

Niobium Microsystems's last reported valuation, Jan 2024. Nothing priced has surfaced since.

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Niobium Microsystems funding rounds

2 rounds
Mar 2025Early Stage VC$12.8MSEC filing▮
Dec 2023Seed Round$4.5MSEC filing▮
Full funding history →

Niobium Microsystems valuation

Niobium Microsystems's last reported valuation was $21 million in Jan 2024. No priced round, secondary trade or fund mark has surfaced since.

How much has Niobium Microsystems raised?

Niobium Microsystems has raised $42.1 million in total; 2 of its rounds are on record. The largest on record was a $4.5 million seed round in Dec 2023; the most recent was a $12.8 million early-stage round in Mar 2025.

Niobium Microsystems has filed 2 Form Ds with the SEC since 2024, most recently in Mar 2025 ($12.8 million sold to 5 investors).

Niobium Microsystems investors

14 investors are on record for Niobium Microsystems, including Alumni Ventures, Korea Development Bank, Fusion Fund and Silicon Catalyst. By type, the record holds 6 venture capital firms and 1 fund of funds. The early-stage round in Mar 2025 drew 5 investors.

About 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
Ownership
Privately Held (backing)

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