# Sarah Kearney

> Sarah Kearney is a seed investor at PRIME Coalition backing Nanotechnology and Water Purification. See 1 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [PRIME Coalition](https://shizune.co/investors/profile/prime-coalition)
- Location: Boston, United States
- Total investments: 1
- Last investment: Nov 2017
- Lead investor: 100%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/kearneysarah

Sarah Kearney is a seed investor at PRIME Coalition in Boston focused on Nanotechnology and Water Purification. Sarah Kearney - Founder & Executive Director @ PRIME Coalition

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Nanotechnology | 1 | 100% |
| Water Purification | 1 | 100% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Anfiro | Anfiro is a water technology start-up addressing global freshwater scarcity. They are using their self-assembling polymers to create chlorine resistant and high permeability reverse osmosis (RO) membranes that vastly outperform current membrane technology. This enables us to significantly reduce the cost of desalinating and purifying water,enabling clean and affordable water for a better tomorrow | $1.1M | Seed | Nov 06, 2017 |  |

1 of 1 investments shown.

## About PRIME Coalition

VC Fund · Cambridge, United States

PRIME Coalition is a 501(c)(3) public charity

1 contacts available at PRIME Coalition.

| Name | Title | Profile |
| --- | --- | --- |
| Sarah Kearney | Founder & Executive Director | https://shizune.co/investors/profile/sarah-kearney |

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## FAQ

### What does Sarah Kearney invest in?

Sarah Kearney invests primarily in Nanotechnology and Water Purification startups, most often at Seed stage. Most of the 1 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Sarah Kearney last invest?

The most recent investment recorded for Sarah Kearney closed in Nov 2017. Shizune tracks 1 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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