# Przemysław Janiszewski

> Przemysław Janiszewski is a pre-seed investor backing Mobile Apps. See 1 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Total investments: 1
- Last investment: Aug 2021
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/przemekjaniszewski/?originalSubdomain=pl

Przemysław Janiszewski is a private investor.

## Contacts

5 contacts available for Przemysław Janiszewski: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/przemysław-janiszewski?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Mobile Apps | 1 | 100% |
| Personal Development | 1 | 100% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Mentorist | Mentorist is an app, available on iOS and Android, that summarizes bestsellers in business, leadership, and personal development. |  | Pre-Seed | Aug 13, 2021 | https://www.mentorist.app/ |

1 of 1 investments shown.

## Co-investors
- [Cobin Angels](https://shizune.co/investors/profile/cobinangels) — VC Fund, 1 deal together
- [Cofounder VC](https://shizune.co/investors/profile/cofounderzone) — VC Fund, 1 deal together
- [Techni Ventures](https://shizune.co/investors/profile/techni-ventures) — VC Fund, 1 deal together

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### Similar industry
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### Similar stage
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### Similar country
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## Featured in investor lists
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## FAQ

### What does Przemysław Janiszewski invest in?

Przemysław Janiszewski invests primarily in Mobile Apps and Personal Development startups, most often at Pre-Seed stage. Most of the 1 investments tracked by Shizune back companies in Estonia. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Przemysław Janiszewski?

Public channels for Przemysław Janiszewski include LinkedIn. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### When did Przemysław Janiszewski last invest?

The most recent investment recorded for Przemysław Janiszewski closed in Aug 2021. 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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