# Fayerweather Fund

> Fayerweather Fund is a VC fund in Cambridge backing Energy, Medical and Wellness. See 4 investments, check sizes, portfolio. Updated Aug 2026.

- Type: VC Fund
- Location: Cambridge, United States
- Total investments: 4
- Last investment: Nov 2020
- Lead investor: 50%
- Last updated: Aug 2026

Fayerweather Fund is a VC fund in Cambridge focused on Energy and Medical. Fayerweather Fund 1 is based out of Cambridge

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Energy | 1 | 25% |
| Medical | 1 | 25% |
| Wellness | 1 | 25% |
| Electronics | 1 | 25% |
| Health Care | 1 | 25% |

9 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series C | 1 | 25% |
| Series F | 1 | 25% |
| Private Equity | 1 | 25% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Switzerland | 1 | 25% |
| United States | 1 | 25% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Kandou AI | KANDOU specializes in the design of high-speed, and pin- and energy-efficient chip-to-chip links, SerDes, and associated technologies.Demand for bandwidth in serial links has increased as industries require both high-quantity and high-quality information. KANDOU BUS has developed a unique approach to serial link design that increases the bit-rateand the reach for a given physical communications link and reduces the power consumption. As a result, more bits can be sent per unit of energy, or less energy can be used to achieve a given bit rate.Less energy means available power can be used for more speed, greater battery life, smaller dies or novel designs that shatter many of today’s constraints.Their team of scientists and engineers, based in Switzerland, the UK, and the US, is pushing the boundaries of serial links. | $36.3M | Series C | Nov 17, 2020 | https://www.kandou.com/ |
| Kandou AI | KANDOU specializes in the design of high-speed, and pin- and energy-efficient chip-to-chip links, SerDes, and associated technologies.Demand for bandwidth in serial links has increased as industries require both high-quantity and high-quality information. KANDOU BUS has developed a unique approach to serial link design that increases the bit-rateand the reach for a given physical communications link and reduces the power consumption. As a result, more bits can be sent per unit of energy, or less energy can be used to achieve a given bit rate.Less energy means available power can be used for more speed, greater battery life, smaller dies or novel designs that shatter many of today’s constraints.Their team of scientists and engineers, based in Switzerland, the UK, and the US, is pushing the boundaries of serial links. | $56M | Series C | Sep 23, 2019 | https://www.kandou.com/ |
| TransMedics | TransMedics provides technology and clinical service solutions, service for heart and lung transplant volume, clinical outcomes, and reduce learning curves. | $12.5M | Private Equity | Jul 12, 2016 | http://www.transmedics.com/wt/home/index |
| TransMedics | TransMedics provides technology and clinical service solutions, service for heart and lung transplant volume, clinical outcomes, and reduce learning curves. | $51.2M | Series F | May 26, 2016 | http://www.transmedics.com/wt/home/index |

4 of 4 investments shown.

## Co-investors
- Abrams Capital — VC Fund, 2 deals together
- [Bessemer Venture Partners](https://shizune.co/investors/profile/bessemer-venture-partners) — VC Fund, 2 deals together
- [BioStar Capital](https://shizune.co/investors/profile/biostar-private-equity) — VC Fund, 2 deals together
- [Columbia Lake Partners](https://shizune.co/investors/profile/columbia-lake-partners) — VC Fund, 2 deals together
- Digital Transformation Fund — VC Fund, 2 deals together
- [Flagship Pioneering](https://shizune.co/investors/profile/flagship-ventures) — VC Fund, 2 deals together

## Similar investors

### Similar stage
- [Sequoia Capital](https://shizune.co/investors/profile/sequoia-capital) — VC Fund
- [New Enterprise Associates](https://shizune.co/investors/profile/new-enterprise-associates) — VC Fund
- [Bessemer Venture Partners](https://shizune.co/investors/profile/bessemer-venture-partners) — VC Fund

## FAQ

### What does Fayerweather Fund invest in?

Fayerweather Fund invests primarily in Energy, Medical and Wellness startups, most often at Series C and Series F stage. Most of the 4 investments tracked by Shizune back companies in Switzerland. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Fayerweather Fund last invest?

The most recent investment recorded for Fayerweather Fund closed in Nov 2020. Shizune tracks 4 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### 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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