Key facts
- Helix Earth’s last known valuation is $44.0M (Mar 2026).
- It has raised $19.0M; the latest was Seed Round ($12.0M) in Mar 2026.
- Notable investors include US National Science Foundation, U.S. Department of Energy, Endless Frontier Labs, Greentown Labs, Urban Future Lab — 15 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 15 names
- ·Watchlist + deal alerts for Helix Earth
- ·The full record, as it builds
Funding rounds
No funding rounds for Helix Earth are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Helix Earth
Operator of filtration technology designed to save on air conditioning energy costs. The company offers multiplexed inertial coalescence refining apparatus technology for integration into architectures for multiple applications and adapted to revolutionize air conditioning energy efficiency, enabling commercial buildings and industrial facilities to maintain a healthy indoor environment and improve sustainability.
- Sector
- Energy
- HQ
- Houston, TX, United States
- Founded
- 2022
- Employees
- 24
- Website
- helixearth.com/
- Ownership
- Privately Held (backing)
Helix Earth 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 Helix Earth 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 Helix Earth in its N-PORT filings yet. We sweep new filings monthly.