# Sarah Green

> Sarah Green is a pre-seed investor at Protagonist Capital backing Children and Software. See 2 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Protagonist Capital](https://shizune.co/investors/profile/protagonist-capital)
- Total investments: 2
- Last investment: Feb 2025
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/sarah-green-47269634

Sarah Green is a pre-seed investor at Protagonist Capital focused on Children and Software. Sarah Green is the Co-founder at Protagonist Capital.

## Round sizes

| Stage | Round size |
| --- | --- |
| Pre-Seed | $750k–$860k |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Children | 1 | 50% |
| Software | 1 | 50% |
| Education | 1 | 50% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Australia | 1 | 50% |
| New Zealand | 1 | 50% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Polymath | Polymath is an app designed specifically for children that makes screen time fun, productive, and healthy. | $859.7K | Pre-Seed | Feb 17, 2025 |  |
| Outread | Outread uses AI to summarize key academic publications. (Blinkist is useful for academic study. | $750K | Pre-Seed | Apr 29, 2024 |  |

2 of 2 investments shown.

## Co-investors
- [Blackbird Ventures](https://shizune.co/investors/profile/blackbird-ventures-australia) — VC Fund, 2 deals together
- [GD1 (Global From Day One)](https://shizune.co/investors/profile/gd1-global-from-day-one) — VC Fund, 1 deal together
- [GD1 (Global From Day One)](https://shizune.co/investors/profile/global-from-day-one-fund-ii) — VC Fund, 1 deal together
- [Phase One Ventures](https://shizune.co/investors/profile/phase-1-ventures) — VC Fund, 1 deal together
- [Startmate](https://shizune.co/investors/profile/startmate) — VC Fund, 1 deal together
- [Techstars Accelerator](https://shizune.co/investors/profile/techstars-accelerator) — VC Fund, 1 deal together

## About Protagonist Capital

VC Fund · Melbourne, Australia

Protagonist is a seed fund that makes investments in businesses where the use of narrative helps accelerate growth.

2 contacts available at Protagonist Capital.

| Name | Title | Profile |
| --- | --- | --- |
| Kate Dinon | Co-founder and Managing Partner | https://shizune.co/investors/profile/kate-dinon-5337 |
| Sarah Green | Co-founder | https://shizune.co/investors/profile/sarah-green-8229 |

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## FAQ

### What does Sarah Green invest in?

Sarah Green invests primarily in Children, Software and Education startups, most often at Pre-Seed stage. Most of the 2 investments tracked by Shizune back companies in Australia. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Sarah Green's check size?

Sarah Green typically joins rounds of $750k–$860k 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 Sarah Green participates in.

### When did Sarah Green last invest?

The most recent investment recorded for Sarah Green closed in Feb 2025. Shizune tracks 2 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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