Marc Sieberger
Founder & COO @ Freigeist Capital
Cologne, Germany
Marc Sieberger is a seed investor at Freigeist Capital in Cologne focused on Dental and Medical. Serial founder with a passion for creating disruptive business models and a deep understanding how to build and scale organizations & teams
- Total investments:
- 4
- Last investment:
- Lead investor:
- 50%
Last updated:
For AI agents: llms.txt
Industries Marc Sieberger invests in
Stages Marc Sieberger invests in
Countries Marc Sieberger invests in
Contacts
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| Work email | ||
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Investment Focus
Industry
- Dental 1 (25%)
- Medical 1 (25%)
- Hardware 1 (25%)
- Robotics 1 (25%)
- Software 1 (25%)
Stage
- Seed 1 (25%)
- Pre-Seed 1 (25%)
- Funding Round 1 (25%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Zahnheld is focusing on dental care that makes sense, natural cosmetic toothpaste, and toothbrushes that are worth their price. | Feb 24, 2026 | ||
| RobCo is a company that develops modular industrial robotics systems combined with AI-driven software to automate manual and repetitive tasks in manufacturing environments. It provides a platform that includes configurable robotic hardware, no-code programming tools, AI-powered vision systems, and digital simulation to plan, test, and deployautomation workflows across applications like machine loading, palletizing, and materials handling. The company’s solutions are designed to be flexible and scalable so manufacturers can adapt robot configurations as production requirements evolve. RobCo also offers tools for remote management, predictive maintenance, and integration with existing equipment to support continuous operation. Its products aim to simplify the adoption of robotics by reducing the need for specialized programming and enabling simulation-based validation before physical deployment. | $3.5M / Seed / Jun 07, 2021 | ||
| See all 4 investments → | |||
Co-Investors
About Freigeist Capital
Freigeist Capital is a venture capital firm that specializes in early-stage venture investments. It was founded by Marc Sieberger, Frank Thelen, and Alex Koch.
Freigeist Capital Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Alex Koch
Founder & CTO
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Frank Thelen
Founder & CEO
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Marc Sieberger
Founder & COO
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FAQ
What does Marc Sieberger invest in?
Marc Sieberger invests primarily in Dental, Medical and Hardware startups, most often at Seed and Pre-Seed stage. Most of the 4 investments tracked by Shizune back companies in Germany. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Marc Sieberger?
Public channels for Marc Sieberger include LinkedIn and X (Twitter). 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 Marc Sieberger last invest?
The most recent investment recorded for Marc Sieberger closed in Feb 2026. Shizune tracks 4 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 Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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