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Material Impact is a Boston-based venture capital firm that backs and builds deep tech companies powered by materials science innovation. The firm focuses on inception-stage companies solving large-scale problems across areas such as food & water, sustainable manufacturing, mobility, energy, healthcare, robotics, and AI.
Deal activity increased 33% year-over-year (4 deals in the last 12 months). Average disclosed round size is $21.4M (across 50 rounds with reported amounts).
Portfolio
35
Fund Size
$352M
Top Stage
Series A
Last 12 Mo
4
Team
Paul Deninger
Operating Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
55 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| GGenphoenix | Unknown | $18M | Aug 2026 |
 Alloy | Series A | $12M | Jun 2026 |
 AgZen | Series B | $10M | Mar 2026 |
| AgZen | Series B | $10M | Jan 2026 |
 Ripple | Series A | $17M | Dec 2025 |
 Debut Biotechnology | Unknown | $20M | Aug 2025 |
 Gen Phoenix | Series A | $15M | Jul 2025 |
| AgZen | Series A | $10M | Mar 2025 |
| AgZen | Series A | $10M | Jan 2025 |
 6K Additive | Series E | — | Sep 2024 |
 GALY | Series B | $33M | Sep 2024 |
| GGaly | Series B | $33M | Sep 2024 |
 Tierra Biosciences | Series A | $11.4M | Mar 2024 |
 Amperesand: | Seed | $12.4M | Feb 2024 |
| Tierra Biosciences | Series A | $11.4M | Jan 2024 |
 Talus Renewables | Series A | $22M | Nov 2023 |
 Detrapel | Series A | $7.6M | Sep 2023 |
 Nohbo | Series A | — | Jun 2023 |
| Gen Phoenix | Unknown | $18M | Mar 2023 |
 NanoGraf | Series B | $65M | Feb 2023 |
| GGenphoenix | Growth | $18M | Jan 2023 |
| Gen Phoenix | Growth | $18M | Jan 2023 |
| TTalusAg | Series A | $22M | Jan 2023 |
| Gen Phoenix | Series B | $18M | Jan 2023 |
 Foundation Alloy | Series A | — | May 2022 |
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Top Co-Investors
Barclays6 shared
Volta Energy Technologies6 shared
Anzu Partners6 shared
In-Q-Tel5 shared
ETF Partners5 shared
InMotion Ventures5 shared
LAUNCH5 shared
Breakthrough Energy Ventures4 shared
Xora4 shared
DCVC4 shared
Energy Impact Partners4 shared
Calibrate Ventures3 shared
Tapestry3 shared
TDK Ventures3 shared
Engine Ventures3 shared
Emerald Technology Ventures3 shared
Invest Michigan3 shared
Scale Venture Partners2 shared
ABB Ventures2 shared
Fen Ventures2 shared
Last updated: 20 October 2026