One Small Planet is a Boulder, Colorado-based vital capital group and family office founded by Will Peterffy that seeks to harmonize the wealth of people and planet by investing in regenerative and climate-focused ventures. Its Fire Fund manages approximately $100 million across its investing vehicles, with a focus on early-stage companies in energy, food, agriculture, and cleantech.
Deal activity decreased year-over-year (2 deals in the last 12 months vs 3 prior). Their most common stage is seed (60% of deals). Average disclosed round size is $9.6M (across 12 rounds with reported amounts).
Portfolio
14
Fund Size
$100M
Top Stage
Seed
Last 12 Mo
3
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
15 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Miraterra Technologies Corporation | Seed | $16M | Mar 2026 |
| AAquaPoro | Seed | $5M | Jan 2026 |
 Symbrosia | Unknown | $5.8M | Dec 2025 |
 Verdi | Seed | — | May 2025 |
 Moment Energy | Series A | $15M | Jan 2025 |
| Verdi | Seed | — | Jan 2025 |
| MMatereal | Seed | $4.5M | Jul 2024 |
 Roam | Series A | $24M | Feb 2024 |
 Earthshot Labs | Series A | $5.5M | Jan 2024 |
 Cruz Foam | Series A | $18M | Oct 2022 |
| GGoodSAM Foods | Series A | $9M | — |
| RRenewWest | Seed | $3.2M | — |
| RReSeed | Seed | $4.6M | — |
| VVerdi Expeditions | Seed | — | — |
| LLAIIER | Seed | $4M | — |
Top Co-Investors
Echo River Capital3 shared
Ponderosa Ventures3 shared
Jetstream3 shared
Act One Ventures2 shared
New Climate Ventures2 shared
Elemental Impact2 shared
Tess Ventures1 shared
Crew Capital1 shared
Equator1 shared
Overture VC1 shared
Voyager Ventures1 shared
In-Q-Tel1 shared
Amazon Climate Pledge Fund1 shared
Version One Ventures1 shared
MCJ1 shared
Fika Ventures1 shared
WovenEarth Ventures1 shared
Helena1 shared
SOUNDWaves1 shared
Last updated: 9 September 2026