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State of Wisconsin Investment Board
Pension fund · Founded 1951 · Madison, United States
Who State of Wisconsin Investment Board is.
Where the institution came from, whose capital it manages, and how that capital is allocated — from Dealroom's LP research.
Historical Background
- The State of Wisconsin Investment Board (SWIB) was established in 1951 as an independent state agency.
- It was created to manage the assets of the Wisconsin Retirement System and other state trust funds.
Source of Capital
- SWIB's capital is primarily sourced from the Wisconsin Retirement System (WRS), which constitutes the majority of its assets under management.
- The agency also manages funds for the State Investment Fund (SIF) and several other smaller state trust funds.
Allocation Strategy
- SWIB employs a diversified allocation strategy across a variety of asset classes, including public stocks, bonds, real estate, private equity, and private debt.
- The board has been increasing its target allocation to private markets, with a reported target of 20% for private equity and debt.
- Asset allocation is a key component of the fund's long-term strategy and is reviewed annually to ensure it meets its investment objectives.
The funds State of Wisconsin Investment Board backs.
State of Wisconsin Investment Board is a limited partner in 281 funds. 14 of them place in the Power Law Investor Ranking, and the best-ranked are shown here.













How State of Wisconsin Investment Board’s fund book is spread.
The 281 funds State of Wisconsin Investment Board backs, by where the manager is headquartered and how many funds that manager has raised.
Where those managers are based
By fund headquarters, across the 279 of 281 with a location on record.
- North America 22781%
- Europe 4315%
- Rest of world 93%
United States 224 · United Kingdom 26 · Germany 4 · Hong Kong 4
How established those managers are
Managers grouped by how many funds they have raised. 81 emerging (three funds or fewer), 99 established — across the 180 of 281 with a fund history on record.
The companies State of Wisconsin Investment Board backs directly.
State of Wisconsin Investment Board holds 19 companies directly, separate from the funds it commits to as a limited partner. The 12 largest by total funding are shown.












How those direct holdings break down by headquarters country, sector, entry stage and current growth stage. "Stage entered" is the first priced round the investor joined, derived from the investor’s transaction history.
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USA19
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Health11
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Jobs Recruitment3
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Marketing2
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Food1
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Real Estate1
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Telecom1
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Series B+9
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Series A8
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Seed2
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Breakout Stage13
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Late Growth4
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Early Growth2
Inside State of Wisconsin Investment Board’s portfolio.
The 18 highest-funded portfolio companies, of 19 tracked.
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CuWhere State of Wisconsin Investment Board’s portfolio founders come from.
19 founders across the 19 highest-funded portfolio companies — by current location, university attended, and the companies they worked at before founding. Sourced from the founder records the API links to each portfolio company.
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United States17
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Canada1
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Denmark1
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University of Wisconsin-Madison3
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Boston University1
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Indian Institute of Technology Bombay1
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The University of Oklahoma1
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University of Michigan1
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University of Minnesota Twin Cities1
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University of Pennsylvania1
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University of Virginia1
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University of Wisconsin-Milwaukee1
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Abbott1
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Affymetrix1
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Alantos Pharmaceuticals1
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Axeda1
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Biolin Scientific1
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Farcast1
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GSK1
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Kony Solutions1
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LifeTechnologies1
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NextPoint1
Other LPs.
Other pension funds in the Power Law LP ranking, closest to State of Wisconsin Investment Board by combined power-law score — North America first, then the nearest worldwide.