# Aternus

> Aternus is a VC fund backing Apps, Solar and Medical. See 2 investments, check sizes, portfolio. Updated Aug 2026.

- Type: VC Fund
- Total investments: 2
- Last investment: Dec 2025
- Lead investor: 0%
- Last updated: Aug 2026
- Website: https://www.aternus.cz

Aternus is an investment firm.

## Round sizes

| Stage | Round size |
| --- | --- |
| Series A | $16M–$28M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Apps | 1 | 50% |
| Solar | 1 | 50% |
| Medical | 1 | 50% |
| Health Care | 1 | 50% |
| Renewable Energy | 1 | 50% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Poland | 1 | 50% |
| Czech Republic | 1 | 50% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Jutro Medical | Jutro Medical offers a combination of online and offline primary care — pairing mobile first telemedicine with physical clinic | $28.2M | Series A | Dec 16, 2025 |  |
| Woltair | Digitisation of the heating installation process - from lead generation, through sales and installation, to after-sales support. | $15.6M | Series A | Sep 27, 2022 |  |

2 of 2 investments shown.

## Co-investors
- [KAYA](https://shizune.co/investors/profile/kaya-8ed9) — VC Fund, 2 deals together
- [ArcTern Ventures](https://shizune.co/investors/profile/arctern-ventures) — VC Fund, 1 deal together
- [Fluent Ventures](https://shizune.co/investors/profile/fluent-ventures) — VC Fund, 1 deal together
- [Inovo.vc](https://shizune.co/investors/profile/inovo-vc) — VC Fund, 1 deal together
- [Inven Capital](https://shizune.co/investors/profile/inven-capital) — VC Fund, 1 deal together
- [Movens Capital](https://shizune.co/investors/profile/movens-capital) — VC Fund, 1 deal together

## Similar investors

### Similar industry
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [SOSV](https://shizune.co/investors/profile/sosv) — VC Fund
- [Breakthrough Energy Ventures](https://shizune.co/investors/profile/breakthrough-energy-ventures) — VC Fund

### 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

### Similar country
- [Reflex Capital](https://shizune.co/investors/profile/reflex-capital) — VC Fund
- [MITON](https://shizune.co/investors/profile/miton-cz-s-r-o) — VC Fund
- [N1](https://shizune.co/investors/profile/nation-1) — VC Fund

## Featured in investor lists
- [Medical Investors in Poland](https://shizune.co/investors/medical-investors-poland)
- [Medical VC Funds in Poland](https://shizune.co/investors/medical-vc-funds-poland)
- [Energy Investors in Czech Republic](https://shizune.co/investors/energy-investors-czech-republic)
- [Energy VC Funds in Czech Republic](https://shizune.co/investors/energy-vc-funds-czech-republic)
- [Impact VC Funds in Czech Republic](https://shizune.co/investors/impact-vc-funds-czech-republic)

## FAQ

### What does Aternus invest in?

Aternus invests primarily in Apps, Solar and Medical startups, most often at Series A stage. Most of the 2 investments tracked by Shizune back companies in Poland. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Aternus's check size?

Aternus typically joins rounds of $16M–$28M at Series A. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Aternus participates in.

### When did Aternus last invest?

The most recent investment recorded for Aternus closed in Dec 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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