# Patrick Sieb

> Patrick Sieb is a Series A investor at Climate Tech Partners backing Recycling and Battery. See 2 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Climate Tech Partners](https://shizune.co/investors/profile/climate-tech-partners)
- Location: Sydney, Australia
- Total investments: 2
- Last investment: Jul 2026
- Lead investor: 50%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/patrick-sieb-5407a621/

Patrick Sieb is a Series A investor at Climate Tech Partners in Sydney focused on Recycling and Battery. Patrick Sieb - Co-founder & Partner @ Climate Tech Partners

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Recycling | 2 | 100% |
| Battery | 1 | 50% |
| CleanTech | 1 | 50% |
| Clean Energy | 1 | 50% |
| Manufacturing | 1 | 50% |

6 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 1 | 50% |
| Venture - Series Unknown | 1 | 50% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Australia | 1 | 50% |
| Philippines | 1 | 50% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Wildfire Energy | WildFire Energy focuses on distributed energy and hydrogen recovery from wastes and residual biomass. | $1.4M | Venture - Series Unknown | Jul 06, 2026 |  |
| Renewable Metals | Renewable Metals' unique alkali recycling process recovers critical minerals from old batteries so they can be used again and again. | $8.6M | Series A | Apr 20, 2026 |  |

2 of 2 investments shown.

## Co-investors
- [Airbus](https://shizune.co/investors/profile/airbus-group) — VC Fund, 1 deal together
- [Clean Energy Finance Corporation](https://shizune.co/investors/profile/clean-energy-finance-corp) — VC Fund, 1 deal together
- [European Metal Recycling](https://shizune.co/investors/profile/european-metal-recycling) — VC Fund, 1 deal together
- [Investible](https://shizune.co/investors/profile/investible) — VC Fund, 1 deal together
- [Neglected Climate Opportunities](https://shizune.co/investors/profile/neglected-climate-opportunities) — VC Fund, 1 deal together
- [Qantas](https://shizune.co/investors/profile/qantas) — VC Fund, 1 deal together

## About Climate Tech Partners

VC Fund



2 contacts available at Climate Tech Partners.

| Name | Title | Profile |
| --- | --- | --- |
| Patrick Sieb | Co-founder & Partner | https://shizune.co/investors/profile/patrick-sieb |
| Tom Kline | Co-founder & Partner | https://shizune.co/investors/profile/tom-kline |

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund

## FAQ

### What does Patrick Sieb invest in?

Patrick Sieb invests primarily in Recycling, Battery and CleanTech startups, most often at Series A and Venture - Series Unknown 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.

### When did Patrick Sieb last invest?

The most recent investment recorded for Patrick Sieb closed in Jul 2026. 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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