Key facts
- Proof Energy’s last known valuation is $47.0M (Jan 2023).
- It has raised $16.4M; the latest was Later Stage VC ($8.0M) in Dec 2025.
- Notable investors include Plug and Play Tech Center, Anhui Orivie Technology, Cleantech Open, Halliburton Labs.
- Status: Privately Held (backing).
- ·The complete investor list — 4 names
- ·Watchlist + deal alerts for Proof Energy
- ·The full record, as it builds
Funding rounds
No funding rounds for Proof Energy are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Proof Energy
Manufacturer of renewable energy technologies intended to replace diesel engines and accelerate decarbonization. The company offers fuel-agnostic metallic solid oxide fuel cells and zero-emissions catalytic oxidation heaters, enabling clients with a cost-effective energy system for commercial transportation and power grids, and extending electric vehicle range in cold climates without harmful emissions.
- Sector
- Energy
- HQ
- Fremont, CA, United States
- Founded
- 2018
- Employees
- 10
- Website
- proof-energy.com/
- Ownership
- Privately Held (backing)
Proof Energy 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 Proof Energy 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 Proof Energy in its N-PORT filings yet. We sweep new filings monthly.