# Karl Josef Seilern

> Karl Josef Seilern is a seed investor at Angel Invest backing Manufacturing and Consumer Goods. See 1 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Angel Invest](https://shizune.co/investors/profile/angel-invest-ventures)
- Location: Vienna, Austria
- Total investments: 1
- Last investment: Apr 2025
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/karl-josef-seilern-ab461119/?originalSubdomain=at

Karl Josef Seilern is a partner at Angel Invest

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Manufacturing | 1 | 100% |
| Consumer Goods | 1 | 100% |
| Home Appliances | 1 | 100% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Heizma | Heizma make climate-neutral heating possible and easy for every family. It offers complete solutions that include not only heating systems, but also photovoltaic systems, power storage, e-charging stations, and intelligent energy management systems. | $2.8M | Seed | Apr 29, 2025 |  |

1 of 1 investments shown.

## Co-investors
- [Flyer One Ventures](https://shizune.co/investors/profile/flyer-one-ventures) — VC Fund, 1 deal together
- [Future Fund](https://shizune.co/investors/profile/future-fund-6cf4) — VC Fund, 1 deal together
- [Paradise Club](https://shizune.co/investors/profile/paradise-club) — VC Fund, 1 deal together

## About Angel Invest

VC Fund · Frankfurt, Germany

Angel Invest is one of Europe's most active early-stage funds, making 50+ investments every year into European technology startups at the pre-seed and seed stages (€100k checks). We actively coach founders and give them access to our networks.

5 contacts available at Angel Invest.

| Name | Title | Profile |
| --- | --- | --- |
| Jag Singh | Managing Partner | https://shizune.co/investors/profile/jag-singh |
| Jens Lapinski | CEO | https://shizune.co/investors/profile/jens-lapinski |
| John von Berenberg-Consbruch | Partner | https://shizune.co/investors/profile/john-von-berenberg-consbruch |
| Karl Josef Seilern | partner | https://shizune.co/investors/profile/karl-josef-seilern |
| Oliver Clasen | Managing Director | https://shizune.co/investors/profile/oliver-clasen |

## 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
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund

## FAQ

### What does Karl Josef Seilern invest in?

Karl Josef Seilern invests primarily in Manufacturing, Consumer Goods and Home Appliances startups, most often at Seed stage. Most of the 1 investments tracked by Shizune back companies in Austria. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Karl Josef Seilern last invest?

The most recent investment recorded for Karl Josef Seilern closed in Apr 2025. 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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