# Winnow Fund

> Winnow Fund is a VC fund in Madison backing Medical and Health Care. See 6 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Madison, United States
- Total investments: 6
- Last investment: May 2024
- Lead investor: 100%
- Fund size: $10M
- Last fund: Dec 2020
- Last updated: Aug 2026
- LinkedIn: https://in.linkedin.com/company/winnow-fund
- Website: https://winnowfund.com/

Winnow Fund is a VC fund in Madison focused on Medical and Health Care. The Winnow Fund is a venture capital fund located in Madison, Wisconsin. The Fund invests in Wisconsin-based early-stage companies, and has a particular interest in opportunities arising on college and university campuses.

## Contacts

5 contacts available for Winnow Fund. Shizune tracks 2 team members at Winnow Fund. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/winnow-fund?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $500k–$1.2M |
| Pre-Seed | $500k–$600k |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Medical | 2 | 33% |
| Health Care | 2 | 33% |
| Apps | 1 | 17% |
| Gaming | 1 | 17% |
| Content | 1 | 17% |

18 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 3 | 50% |
| Pre-Seed | 3 | 50% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 5 | 83% |
| Estonia | 1 | 17% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Daniel Sem | Investment Committee - Observer | 1 | https://shizune.co/investors/profile/daniel-sem-7184 |
| Richelle Martin | Founder & Managing Director | 2 | https://shizune.co/investors/profile/richelle-martin-0e84 |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| DropCap | DropCap is a tech-enabled rights agency (dropcap.com) and a global rights marketplace used by rights agents and acquisitions editors around the world to find great books (dropcapmarketplace.com). Our mission is to provide independent authors and publishers access to rights licensing opportunities and help indie books go global through foreignrights, audio, and film rights licensing. | $1.2M | Seed | May 02, 2024 | https://www.dropcap.com/ |
| Fenster Analytics | Fenster Analytics optimizes content management and simplifies content consumption for technical users. The company's Nexus product also creates easily-maintainable visualizations and gathers valuable insight. | $500K | Seed | Nov 17, 2022 | https://www.fensteranalytics.com/ |
| Plumb Pharmaceuticals | Plumb Pharmaceuticals produces super-extended-release formulations of weak-base, small-molecule pharmaceuticals using creative quantload technologies that were developed by the company. By providing stimulants for the treatment of ADHD, anti-HIV medications, antibiotics, antipsychotics, cancer chemotherapeutic agents, antihistamines, andanalgesics, the company's lipid nanoparticle technology enables the healthcare sector to enhance people's health. |  | Seed | Jan 01, 2022 | https://www.plumbpharma.com |
| Village | Communities are our best classrooms. |  | Pre-Seed | Nov 15, 2021 | https://village.com |
| RoddyMedical | RoddyMedical develops innovative medical devices that improve clinical safety and patient outcomes. Its single-use wearable medical device is designed to secure and organize various medical tubes, lines, and cords to improve IV medication safety and patient therapy efficiency. The patent-pending tension mitigation system prevents dangerous pullingand line/cord dislodgement during therapy, transport, and patient movement. It improves patient comfort while increasing staff efficiency and saving time. | $600K | Pre-Seed | Aug 23, 2021 | https://www.roddymedical.com/ |
| KaPloint, Inc. | KaPloint is an app for slot players that wish to improve their game and make better gaming selections. | $500K | Pre-Seed | Aug 03, 2021 | https://www.kaploint.com/ |

6 of 6 investments shown.

## Co-investors
- [Gateway Capital Partners](https://shizune.co/investors/profile/gateway-capital-partners) — VC Fund, 1 deal together
- [Idea Fund of La Crosse](https://shizune.co/investors/profile/idea-fund-of-la-crosse) — VC Fund, 1 deal together
- [Lancaster Investments](https://shizune.co/investors/profile/lancaster-investment) — VC Fund, 1 deal together
- [Winnebago Seed Fund](https://shizune.co/investors/profile/winnebago-seed-fund) — VC Fund, 1 deal together
- [Wisconsin Investment Partners](https://shizune.co/investors/profile/wisconsin-investment-partners) — VC Fund, 1 deal together

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## FAQ

### What does Winnow Fund invest in?

Winnow Fund invests primarily in Medical, Health Care and Apps startups, most often at Seed and Pre-Seed stage. Most of the 6 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Winnow Fund's check size?

Winnow Fund typically joins rounds of $500k–$1.2M at Seed and $500k–$600k at Pre-Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Winnow Fund participates in.

### How do I contact Winnow Fund?

Public channels for Winnow Fund include LinkedIn and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### Who are the partners at Winnow Fund?

The team at Winnow Fund includes Daniel Sem (Investment Committee - Observer) and Richelle Martin (Founder & Managing Director). The Team section lists each member with their title, investment count and links.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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