Key facts
- It has raised $4.8M; the latest was Later Stage VC ($4.6M) in Aug 2025.
- Notable investors include InnoEnergy, Spinlab - The Hhl Accelerator, Agile Accelerator, Blue Planet Venture Capital Funds, E.ON MyEnergy — 14 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 14 names
- ·Watchlist + deal alerts for HeatVentors
- ·The full record, as it builds
Funding rounds
No funding rounds for HeatVentors are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About HeatVentors
Developer of a thermal battery system designed to build advanced heat storage systems. The company's system stores heat by using special biomaterials called phase-change materials rather than changing the temperature of the water, and by melting and solidifying the energy, it can be stored in a more concentrated way, enabling clients to save and store energy to meet their requirements with reduced storage volume.
- Sector
- Energy
- HQ
- Mezotur, Hungary
- Founded
- 2017
- Employees
- 17
- Website
- heatventors.com/
- Ownership
- Privately Held (backing)
HeatVentors 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 HeatVentors 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 HeatVentors in its N-PORT filings yet. We sweep new filings monthly.