# Petr Dadak

> Petr Dadak is a seed investor at IS4U (Brno) backing B2B, B2C and E-Commerce. See 1 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [IS4U](https://shizune.co/investors/profile/is4u)
- Location: Brno, Czech Republic
- Total investments: 1
- Last investment: Apr 2013
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/petrdadak/?originalSubdomain=cz

Petr Dadak is a seed investor at IS4U in Brno focused on B2B and B2C. Petr Dadak

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| B2B | 1 | 100% |
| B2C | 1 | 100% |
| E-Commerce | 1 | 100% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| BizBox, s.r.o. | BizBox is a cloud-based tool (app) for creation and optimalization of e-shops. Our priority is the highest possible level of automation. Our online solution can also provide you with full integration with your existing information systems.We focus on sales to foreign countries (including connection to payment gateways and shipping companies),B2B and B2C sales and dropshipping. |  | Seed | Apr 16, 2013 |  |

1 of 1 investments shown.

## About IS4U

VC Fund



1 contacts available at IS4U.

| Name | Title | Profile |
| --- | --- | --- |
| Petr Dadak | CIO and Co-Owner | https://shizune.co/investors/profile/petr-dadak |

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## FAQ

### What does Petr Dadak invest in?

Petr Dadak invests primarily in B2B, B2C and E-Commerce startups, most often at Seed stage. Most of the 1 investments tracked by Shizune back companies in Czech Republic. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Petr Dadak last invest?

The most recent investment recorded for Petr Dadak closed in Apr 2013. 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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