WS
Wilson Sonsini
Palo Alto, California, United StatesFounded 1961
Wilson Sonsini is a multinational law firm specializing in business, securities, venture capital, and intellectual property law, primarily advising emerging technology and life science companies, as well as venture capital firms. While they have an internal investment fund called WS Investment Company, their core focus is providing legal services rather than operating as a traditional venture capital firm with an external investment focus and strategy.
Their most common stage is seed (57% of deals). Average disclosed round size is $10.6M (across 7 rounds with reported amounts).
Portfolio
7
Fund Size
—
Top Stage
Seed
Last 12 Mo
0
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
7 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 General Proximity | Seed | $16M | Jan 2025 |
 Bench IQ | Pre-Seed | $2.1M | Feb 2024 |
 AM Batteries | Series B | $30M | Dec 2023 |
 Cohart | Seed | $4M | Aug 2023 |
 Smartlens, Inc. | Series A | $6.1M | Jul 2023 |
 Playbook | Seed | $4M | Aug 2021 |
 Miga Health | Seed | $12M | — |
Top Co-Investors
Alumni Ventures Group3 shared
Inovia Capital2 shared
Felicis Ventures1 shared
Y Combinator1 shared
Stanford University1 shared
Graphene Ventures1 shared
3E Bioventures Capital1 shared
Boutique Venture Partners1 shared
Courtside Ventures1 shared
Slauson & Co.1 shared
BDMI1 shared
Canva1 shared
The Council1 shared
Founders Fund1 shared
SV Angel1 shared
Abstract Ventures1 shared
Basis Set Ventures1 shared
Lux Capital1 shared
Quiet Capital1 shared
Floating Point1 shared
Last updated: 8 March 2026