Energy Capital Ventures
Chicago, Illinois, United StatesFounded 2020
Energy Capital Ventures (ECV) is the only early-stage venture capital fund solely dedicated to the energy expansion enabled by the innovation and resilience of the natural gas value chain (Green Molecules®). Founded in 2020 and based in Chicago, ECV closed its inaugural Fund I at $61 million in October 2022 to accelerate the natural gas industry's ESG transformation.
Deal activity increased 200% year-over-year (3 deals in the last 12 months). Average disclosed round size is $48.9M (across 22 rounds with reported amounts).
Portfolio
24
Fund Size
$61M
Top Stage
Series A
Last 12 Mo
3
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
24 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 enaDyne | Seed | — | Sep 2025 |
| RRodatherm Energy | Series A | $38M | Sep 2025 |
 Sapphire Technologies | Series C | $18M | Sep 2025 |
 Capture6 | Series A | $27.5M | Mar 2025 |
 Vertus Energy | Seed | — | Jun 2024 |
 SPEC Toolbox | Bridge | $3M | Jan 2024 |
 Osmoses | Seed | $11M | Oct 2023 |
| BBraya Renewable Fuels | Growth | $300M | Apr 2023 |
 Aromyx Corporation | Series A | $10M | Jan 2021 |
 Immensa | Series A | $7M | Jan 2021 |
| AAromyx Corporation | Series A | $10M | Jan 2021 |
 Sunnova | Growth | $300M | Mar 2016 |
| IIOXUS | Series C | $21M | Apr 2014 |
| ZZiebel | Growth | $10M | Jan 2014 |
| SSungevity | Unknown | $125M | Jan 2013 |
 Oblong | Series B | $21M | Jan 2012 |
 C-Zero | Series A | $18M | — |
 Furno | Seed | $6.5M | — |
| CCool Planet Energy Systems | Series D | $19.4M | — |
 Alta Devices | Unknown | $72M | — |
 Highwood Emissions Management | Seed | $3M | — |
| GGraphitic | Series A | $15M | — |
 Carbonquest | Unknown | $20M | — |
| GGlori Energy | Series C | $20M | — |
Top Co-Investors
ConocoPhillips3 shared
Amadeus Capital Partners2 shared
Radicle Growth2 shared
Joyance Partners2 shared
Sozo Ventures2 shared
Ulu Ventures2 shared
Hercules Capital, Inc.2 shared
First Bridge Ventures1 shared
Elemental Impact1 shared
Antares Ventures1 shared
Possible Ventures1 shared
Equinor1 shared
Mitsubishi Heavy Industries1 shared
New Climate Ventures1 shared
Collaborative Fund1 shared
Engine Ventures1 shared
Fine Structure Ventures1 shared
Blackbird1 shared
The Westly Group1 shared
Last updated: 8 September 2026