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Investment fund

Winnow Fund I, L.P.

Seed-stage venture fund investing in startups across Wisconsin and the wider Upper Midwest

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  • Seed Stage
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About Winnow Fund I, L.P.

Winnow Fund I, L.P. is a seed-stage venture fund based in Wisconsin. It makes many small investments in young companies across the Upper Midwest, taking an equity stake early to soften the risks of investing at that point.

Services

  • Seed investment: early equity in startups run by highly motivated entrepreneurs who want to scale quickly.
  • Spread of bets: a strategy built on numerous small positions rather than a few large ones.
  • Portfolio: its first fund has invested in nearly a dozen companies.

Who it works with

Founders in Wisconsin and neighbouring Upper Midwest states, where the fund sees resilient industries and strong communities supporting growth.

Key facts

  • Based in: Wisconsin, USA.
  • Stage: seed and early-stage.
  • Backer: a portfolio fund within the Badger Fund of Funds, which combines public and private money including support from the State of Wisconsin.
  • Fund manager of the Badger Fund: Sun Mountain Kegonsa, a partnership between Kegonsa Capital Partners and Sun Mountain Capital.

Profile written by TrustList from the business's own published information, Oct 2026.

Categories & features

  • Pre Seed
  • Seed Stage

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