State of Wisconsin Investment Board
Madison, Wisconsin, United StatesFounded 1951
The State of Wisconsin Investment Board (SWIB) established a venture capital program in 1999 primarily focused on Wisconsin and the Midwest. Their core strategy is to generate strong, risk-adjusted investment returns to fund the retirement benefits of their beneficiaries, while also seeking opportunities that benefit Wisconsin's economy.
67% of their portfolio is in Biotech & Life Sciences. They made 1 investments in the last 12 months. Their most common stage is series-c (67% of deals). Average disclosed round size is $45.0M (across 3 rounds with reported amounts).
Portfolio
3
Fund Size
—
Top Stage
Series C
Last 12 Mo
1
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
3 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Elephas Biosciences Corporation | Series B | $40M | Nov 2025 |
| Elephas Biosciences Corporation | Series C | $55M | Jan 2024 |
 HistoSonics | Series C | $40M | Jun 2020 |
Top Co-Investors
Northpond Ventures2 shared
ARCH Venture Partners2 shared
Sands Capital2 shared
Tao Capital Partners1 shared
Moore Strategic Ventures1 shared
Last updated: 28 April 2026