Susquehanna Sustainable Investments
Bala Cynwyd, Pennsylvania, United StatesFounded 2021
Susquehanna Sustainable Investments (SSI) is the venture investment arm funded by the owners of Susquehanna International Group (SIG). It provides patient capital to early-stage companies building environmentally friendly, market-based solutions across climate mitigation, adaptation, and removal.
They made 4 investments in the last 12 months. Their most common stage is seed (40% of deals). Average disclosed round size is $64.6M (across 10 rounds with reported amounts).
Portfolio
9
Fund Size
—
Top Stage
Seed
Last 12 Mo
6
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Portfolio
10 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| HHephae Energy Technology LLC | Unknown | $17.8M | Jul 2026 |
 Critical Energy | Seed | $19M | Jun 2026 |
 Zanskar | Series C | $115M | Jan 2026 |
 Zanskar | Series C | $115M | Jan 2026 |
| ZZanskar | Series B | $115M | Jan 2026 |
 Panthalassa | Series B | $140M | Jan 2026 |
 Foray | Seed | $3M | — |
| FForay | Seed | $3M | — |
| FForay Bioscience | Seed | $3M | — |
| ZZanskar | Series C | $115M | — |
Top Co-Investors
Lowercarbon Capital5 shared
Union Square Ventures4 shared
University Growth Fund4 shared
Obvious Ventures4 shared
UP.Partners4 shared
StepStone Group4 shared
Spring Lane Capital4 shared
Safar Partners4 shared
Orion Industrial Ventures4 shared
Carica Sustainable Investments4 shared
Cross Creek4 shared
GVP Climate4 shared
Clearvision Ventures4 shared
Superorganism3 shared
Engine Ventures3 shared
ReGen Ventures3 shared
Understorey3 shared
Service Provider Capital2 shared
Unless1 shared
Future Positive Capital1 shared
Last updated: 8 September 2026