# Ioannis Gennitsarios

> Ioannis Gennitsarios is a seed investor backing Health Care and Medical Device. See 1 investments, check sizes, portfolio and contact details. Updated Oct 2026.

- Type: Angel Investor
- Total investments: 1
- Last investment: Mar 2015
- Lead investor: 0%
- Last updated: Oct 2026

Ioannis Gennitsarios is a seed investor focused on Health Care and Medical Device. Ioannis Gennitsarios

## Contacts

5 contacts available for Ioannis Gennitsarios: 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/ioannis-gennitsarios-1dd5?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Health Care | 1 | 100% |
| Medical Device | 1 | 100% |
| Personalization | 1 | 100% |
| Quality Assurance | 1 | 100% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| RTsafe | Founded in 2014, RTsafe is introducing Individualized Care to Radiation Oncology. It designs and manufactures the first FDA-cleared, patient-specific, anatomically-exact models of human head and brain tissue. These are offered to Radiotherapy clinics for simulating radiation therapy for each patient ahead of actual treatment in a totally risk-freeenvironment, thus maximizing cancer patient safety and treatment effectiveness during radiation therapy. This solution is also sold to RT equipment manufacturers for machine-testing purposes. After winning a R&D 100 Award, RTsafe’s PseudoPatientTM is recognized as one of the 100 most significant high-tech products worldwide for 2019. The company’s vision is a world where every radiotherapy intervention is tested on a PseudoPatient® before the real patient. | $35K | Seed | Mar 01, 2015 | http://www.rt-safe.com |

1 of 1 investments shown.

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## Featured in investor lists
- [Health Care Investors in Greece](https://shizune.co/investors/health-care-investors-greece)
- [Marketplace Angel Investors in Greece](https://shizune.co/investors/marketplace-angel-investors-greece)

## FAQ

### What does Ioannis Gennitsarios invest in?

Ioannis Gennitsarios invests primarily in Health Care, Medical Device and Personalization startups, most often at Seed stage. Most of the 1 investments tracked by Shizune back companies in Greece. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Ioannis Gennitsarios?

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 Ioannis Gennitsarios last invest?

The most recent investment recorded for Ioannis Gennitsarios closed in Mar 2015. 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 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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