Key facts
- StirLight’s last known valuation is $5.8M (Feb 2026).
- It has raised $1.1M; the latest was Grant ($670K) in Apr 2026.
- Notable investors include Innovate UK, Haatch, British Business Bank, Aerospace Technology Institute, D2N2 Local Enterprise Partnership.
- Status: Privately Held (backing).
- ·The complete investor list — 5 names
- ·Watchlist + deal alerts for StirLight
- ·The full record, as it builds
Funding rounds
No funding rounds for StirLight are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About StirLight
Developer of friction stir welding monitoring platforms intended to improve weld quality and reliability in advanced manufacturing. The Company develops sensor-driven systems that collect and analyze high-frequency process data during friction stir welding operations to detect defects and ensure consistent weld quality, enabling manufacturers ensure weld quality and reliability through real-time welding process monitoring.
- Sector
- Business Products and Services (B2B)
- HQ
- Chesterfield, United Kingdom
- Founded
- 2021
- Employees
- 5
- Website
- stirlight.com/
- Ownership
- Privately Held (backing)
StirLight 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 StirLight 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 StirLight in its N-PORT filings yet. We sweep new filings monthly.