Key facts
- It has raised $31.8M; the latest was Early Stage VC ($21.0M) in Mar 2026.
- Notable investors include Congruent Ventures, Obvious Ventures, Zero Infinity Partners, Overture Ventures, Sabanci Climate Technologies — 7 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 7 names
- ·Watchlist + deal alerts for Halcyon
- ·The full record, as it builds
Funding rounds
No funding rounds for Halcyon are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Halcyon
Developer of an AI-powered energy intelligence platform designed to provide structured data and insights for energy industry professionals. The company aggregates and analyzes regulatory filings, market reports, and infrastructure project data into searchable datasets, alerts, and trackers, enabling organizations to monitor energy developments, analyze policy
- Sector
- Business Products and Services (B2B)
- HQ
- San Francisco, CA, United States
- Founded
- 2023
- Employees
- 42
- Website
- halcyon.io/
- Ownership
- Privately Held (backing)
Halcyon 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 Halcyon 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 Halcyon in its N-PORT filings yet. We sweep new filings monthly.