Key facts
- It has raised $1.1M; the latest was Seed Round ($1.0M) in Feb 2025.
- Notable investors include Antler, Passion Capital, Volta Ventures.
- Status: Privately Held (backing).
Investors
3- ·The complete investor list — 3 names
- ·Watchlist + deal alerts for LangWatch
- ·The full record, as it builds
Funding rounds
No funding rounds for LangWatch are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About LangWatch
Developer of an AI-based evaluation and monitoring platform designed for oversight of language model applications. The company's platform offers prompt testing, response quality analysis, hallucination detection, bias and toxicity assessment, performance benchmarking, experiment tracking, dataset management, and integration with existing AI development workflows, enabling enterprises and development teams to systematically evaluate, monitor, and improve the reliability, safety, and performance of deployed language model systems.
- Sector
- Information Technology
- HQ
- Amsterdam, Netherlands
- Founded
- 2023
- Employees
- 11
- Website
- langwatch.ai/
- Ownership
- Privately Held (backing)
LangWatch 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 LangWatch 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 LangWatch in its N-PORT filings yet. We sweep new filings monthly.