Key facts
- Line 21’s last known valuation is $2.3M (Jan 2025).
- It has raised $440K.
- Notable investors include SFC Capital.
- Status: Privately Held (backing).
Investors
1- ·The complete investor list — 1 names
- ·Watchlist + deal alerts for Line 21
- ·The full record, as it builds
Funding rounds
No funding rounds for Line 21 are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Line 21
Developer of artificial intelligence infrastructure designed to manage language processing for live media streams. The company's platform offers orchestration of multiple artificial intelligence models for caption creation, proofreading, translation, and encoding within live video streams, enabling media companies, broadcasters, and digital event organizers to deliver multilingual captions and audio across streaming platforms.
- Sector
- Information Technology
- HQ
- London, United Kingdom
- Founded
- 2023
- Employees
- 3
- Website
- line-21.com/
- Ownership
- Privately Held (backing)
Line 21 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 Line 21 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 Line 21 in its N-PORT filings yet. We sweep new filings monthly.