WI
WS Investment Company
Palo Alto, California, United StatesFounded 1978
WS Investment Company, the investment fund of Wilson Sonsini Goodrich & Rosati, focuses on venture capital investments across pre-seed, seed, early-stage, and late-stage opportunities. Their strategy involves internal fundraising with mandatory participation from partners, targeting various industries such as technology, healthcare, and financial services primarily within the United States.
67% of their portfolio is in Biotech & Life Sciences. They made 1 investments in the last 12 months. Average disclosed round size is $45.5M (across 3 rounds with reported amounts).
Portfolio
3
Fund Size
—
Top Stage
Series D
Last 12 Mo
1
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
3 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Portal Biotech | Series A | $35M | Jun 2025 |
| TTangibly | Seed | $6.5M | Jul 2023 |
 Insilico Medicine | Series D | $95M | Aug 2022 |
Top Co-Investors
Prosperity7 Ventures1 shared
B Capital1 shared
Warburg Pincus1 shared
Deerfield1 shared
Pavilion Capital1 shared
Bold Capital Partners1 shared
Earlybird Venture Capital1 shared
8VC1 shared
SCVC1 shared
Pillar VC1 shared
Amino Collective1 shared
We Venture Capital1 shared
British Business Bank1 shared
Madrona Venture Group1 shared
Alumni Ventures Group1 shared
MVP Ventures1 shared
DLA Piper1 shared
Last updated: 28 April 2026