Grantham Foundation
The Grantham Foundation primarily focuses its venture capital investments on addressing climate change and environmental degradation, specifically targeting "neglected climate opportunities" and early-stage companies developing innovative solutions for climate change mitigation and adaptation. Their strategy involves providing early capital to impactful, often overlooked, technologies and business models that aim to redesign energy systems, improve soil health, protect oceans, and recapture carbon.
82% of their portfolio is in Climate & Energy. Deal activity decreased year-over-year (1 deals in the last 12 months vs 4 prior). Their most common stage is seed (55% of deals). Average disclosed round size is $35.6M (across 10 rounds with reported amounts).
Portfolio
11
Fund Size
$684M
Top Stage
Seed
Last 12 Mo
1
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
Portfolio
| Company | Round | Amount | Date |
|---|---|---|---|
 InventWood | Series A | $15M | Apr 2025 |
| VVema Hydrogen | Seed | $13M | Feb 2025 |
 Switch Bioworks | Seed | $17M | Sep 2024 |
| InventWood | Seed | $8M | Aug 2024 |
 Applied Carbon | Series A | $21.5M | Jul 2024 |
 Fervo Energy | Series C | $221M | Feb 2024 |
 Pluton Biosciences | Series A | $16.5M | May 2023 |
 Type One Energy | Seed | $29M | Mar 2023 |
 Paebbl | Seed | $8M | Oct 2022 |
| Pluton Biosciences | Seed | $6.6M | Oct 2021 |
 Brilliant Planet | Unknown | — | — |
Top Co-Investors
Last updated: 16 April 2026