Jetstream is a pre-seed venture capital fund founded by Tommy Leep and based in San Francisco. The fund invests in climate tech, sustainability, and biodiversity startups at the earliest stages, backing founders building transformative technologies.
Their most common stage is seed (76% of deals). Average disclosed round size is $6.2M (across 10 rounds with reported amounts).
Portfolio
15
Fund Size
$10M
Top Stage
Seed
Last 12 Mo
0
Team
KT
Konrad Tree
Founding Principal
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
17 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Bright Harbor | Seed | $10.1M | Aug 2025 |
 Verdi | Seed | — | May 2025 |
 Presto | Seed | $15M | Feb 2025 |
| Verdi | Seed | — | Jan 2025 |
 Bright Harbor | Seed | $10.1M | Jan 2025 |
 Windborne Systems | Series A | — | May 2024 |
 Pathways | Pre-Seed | $2.5M | Feb 2024 |
 Metafold | Seed | $1.8M | Jul 2023 |
| Windborne Systems | Seed | — | Jun 2023 |
 The Cool Down | Seed | — | Jul 2022 |
 Simplifyber | Seed | $3.5M | Jul 2022 |
 Albedo | Seed | $10M | Apr 2021 |
 Trebellar | Seed | $3.5M | — |
 Orpheus Ocean | Pre-Seed | $2.8M | — |
 Orpheus | Pre-Seed | $2.8M | — |
| VVerdi Expeditions | Seed | — | — |
| EEconic | Seed | — | — |
Top Co-Investors
Congruent Ventures3 shared
Everywhere Ventures3 shared
Echo River Capital3 shared
One Small Planet3 shared
Ponderosa Ventures3 shared
Human Ventures2 shared
Convective Capital2 shared
Footwork2 shared
Khosla Ventures2 shared
Hearst Ventures2 shared
Ubiquity Ventures2 shared
Pear VC2 shared
Refashiond Ventures2 shared
Kindergarten Ventures2 shared
Crystal Venture Partners2 shared
Lowercarbon Capital2 shared
Elemental Impact2 shared
Village Global2 shared
Propeller Ventures2 shared
Liquid 2 Ventures1 shared
Last updated: 20 October 2026