US · artificial intelligence · cybersecurity · energy

Who invested in Halcyon

2 rounds we have observed, with the investors named in each. Every figure below came from a named source, and where the company reported the raise to the SEC itself, that is shown beside it.

2
rounds observed
5
investors named
$121M
reported across those rounds
Mar 2026
most recent

The rounds

Series A · Mar 2026 · $21M

No investor was named in the report.

Reported by Ventureburn · SEC filing: $8.0M sold under the offering, first sale Feb 2026

Series C · Nov 2024 · $100M

Evolution Equity Partners lead, Bain Capital, ServiceNow Ventures, Harmony Partners, SYN Ventures

Reported by Crunchbase News · SEC filing: $125M sold under the offering, first sale Oct 2024

Everyone who backed them

InvestorTypeRounds
Private equity1
VC firm1

Missing a round, or an investor who was in one? Tell us.