Proof Energy
PrivateLast Round
Accelerator
Mar 5, 2026
Est. Valuation
$54.15M
Total Funding Raised
$20M
Momentum
Top 10%
of companies Caplight tracks
Company Overview
Proof Energy is a clean energy technology company that develops metallic solid oxide fuel cell systems and catalytic oxidation heaters to decarbonize commercial transportation and power grids.
Sector
Energy & Sustainability
Verticals
Renewable Energy, Energy Storage, Energy Management
Business Model
B2B
Customer Profile
Hardware Sales
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Proof Energy Comparables
Compare Proof Energy with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| HD Korea Shipbuilding & Offshore Engineering | 76% | |
| Bloom Energy | 74% | |
| Elcogen | 69% | |
Proof Energy Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Accelerator | Mar 5, 2026 | ||||
| Series B Extension | Jan 31, 2023 | ||||
| Series B | Jul 11, 2022 | ||||
| Accelerator | Apr 22, 2021 | ||||
| Accelerator | Oct 23, 2020 |
Proof Energy Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Plug and Play Tech Center | Accelerator |
| Halliburton Labs | Accelerator |
| Cleantech Open | Accelerator |
Market signals
Structured signals derived from secondary market and firmographic data.
- Mar 5, 2026
Received funding from Halliburton Labs.
- Mar 5, 2026
Launched the ClearTherm Range Defender, a zero-emissions catalytic oxidation heater.
Proof Energy Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about Proof Energy's valuation, stock price, and market status.