AI search and alerting layer over US energy regulatory filings, plus structured data subscriptions on large loads, gas plants, substations and batteries.
Halcyon indexes millions of dockets and filings across all 50 state public utility commissions, every ISO/RTO and FERC, letting analysts query in plain English and get agentic alerts that summarize what actually changed rather than just flagging new documents. On top of that it sells asset-level data subscriptions including a Large Load Tariff Tracker, Gas Power Plant Tracker, Rate Case Tracker and New Substation Development Tracker. It raised a $21M Series A in March 2026 led by Energize Capital.
- Headquarters
- San Francisco, CA
- Employees
- 11–50
- Business model
- Data subscription
- Ownership
- Series A
No queue positions recorded under this name. Expected for software, capital and supply chain companies, which do not hold interconnection requests.
- · Curated research
Written profiles are hand-entered and not independently verified. Queue figures are computed from ISO interconnection data and reflect requested capacity, not built capacity.