Key facts
- SemiNex’s last known valuation is $11.0M (Nov 2025).
- It has raised $5.6M across 1 recorded rounds; the latest was Seed Round ($3.1M) in Oct 2025.
- Notable investors include CIV Ventures, George Holbrook, National Institute Of Allergy and Infectious Diseases, eCoast Angels.
- SemiNex has filed 2 Form Ds with the SEC since 2009, most recently Aug 2011 ($640K sold to 12 investors).
- Status: Privately Held (backing).
- ·Post-money valuations for all 1 rounds
- ·The complete investor list — 4 names
- ·Watchlist + deal alerts for SemiNex
Funding rounds
1 roundsAbout SemiNex
Manufacturer of high-power semiconductor and infrared diode lasers designed for use in military, medical, and industrial applications. The company's lasers are made using high-precision indium phosphide semiconductor materials, which convert electrical energy directly into coherent optical energy, enabling customers to lower the cost per watt of laser power, compared to alternative technologies such as solid-state lasers and fiber lasers.
- Sector
- Information Technology
- HQ
- Danvers, MA, United States
- Founded
- 2003
- Employees
- 26
- Website
- seminex.com/
- Ownership
- Privately Held (backing)
SemiNex 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 SemiNex 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 SemiNex in its N-PORT filings yet. We sweep new filings monthly.