# Dirk Frohnert

> Dirk Frohnert is a angel investor at SIVentures (prev. Smart Infrastructure Ventures) backing Sports. See 1 investments, check sizes, portfolio. Updated Aug…

- Type: Angel Investor
- Fund: [SIVentures (prev. Smart Infrastructure Ventures)](https://shizune.co/investors/profile/smart-infrastructure-ventures)
- Total investments: 1
- Last investment: Aug 2016
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/dirk-frohnert-cfa-5346a586/

Dirk Frohnert is a angel investor at SIVentures (prev. Smart Infrastructure Ventures) focused on Sports and Marketplace. Dirk Frohnert

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Sports | 1 | 100% |
| Marketplace | 1 | 100% |
| Sponsorship | 1 | 100% |
| Advertising Platforms | 1 | 100% |
| Information Technology | 1 | 100% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Sponsoo | Sponsoo is an innovative online marketplace that connects non-professional athletes and sport teams with corporate sponsors. Athletes and teams create a profile on sponsoo.com, and sponsors search the database to find the perfect team(s) to sponsor.Important for German investors: Sponsoo is part of the INVEST grant programme that allows privateinvestors to claim back 20% of their investment sum as a grant from the German Department of Commerce. | $318K | Angel | Aug 18, 2016 |  |

1 of 1 investments shown.

## About SIVentures (prev. Smart Infrastructure Ventures)

VC Fund · Leipzig, Germany

Early-stage VC backing B2B software startups across Europe. We partner with founders from day one and provide hands-on support.

4 contacts available at SIVentures (prev. Smart Infrastructure Ventures).

| Name | Title | Profile |
| --- | --- | --- |
| Björn Bauermeister | Founding Partner | https://shizune.co/investors/profile/bj%C3%B6rn-bauermeister |
| Dirk Frohnert | Founding Partner | https://shizune.co/investors/profile/dirk-frohnert |
| Eric Weber | Venture Partner | https://shizune.co/investors/profile/eric-weber-8f75 |
| Falk Trietsch | Investment Manager | https://shizune.co/investors/profile/falk-trietsch |

## Similar investors

### Similar stage
- [LVX Ventures](https://shizune.co/investors/profile/letsventure) — VC Fund
- [ZhenFund](https://shizune.co/investors/profile/zhenfund) — VC Fund
- [IAN Group](https://shizune.co/investors/profile/indian-angel-network) — VC Fund

## FAQ

### What does Dirk Frohnert invest in?

Dirk Frohnert invests primarily in Sports, Marketplace and Sponsorship startups, most often at Angel stage. Most of the 1 investments tracked by Shizune back companies in Germany. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Dirk Frohnert last invest?

The most recent investment recorded for Dirk Frohnert closed in Aug 2016. 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.

# About Shizune
Shizune.co is an investor database. Core features:
- 48,091 startup investors (angels, VCs, accelerators, and others)
- Email, phone, LinkedIn (for intros), socials, and other contact data
- Updated daily from public funding news
- CSV and Excel export

The User can access the full database FOR FREE after signing up: shizune.co