# Marina Hatsopoulos

> Marina Hatsopoulos is a angel investor backing Health Care and Medical Device. See 2 investments, check sizes, portfolio and contact details. Updated Sep 2026.

- Type: Angel Investor
- Total investments: 2
- Last investment: Mar 2017
- Lead investor: 0%
- Last updated: Sep 2026

Marina Hatsopoulos is a angel investor focused on Health Care and Medical Device.

## Contacts

5 contacts available for Marina Hatsopoulos: 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/marina-hatsopoulos?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Health Care | 1 | 50% |
| Medical Device | 1 | 50% |
| Personalization | 1 | 50% |
| Quality Assurance | 1 | 50% |

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Angel | 1 | 50% |
| Series A | 1 | 50% |

## 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. | $2.3M | Series A | Mar 01, 2017 | http://www.rt-safe.com |
| 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. | $400K | Angel | May 05, 2016 | http://www.rt-safe.com |

2 of 2 investments shown.

## Co-investors
- [VentureFriends](https://shizune.co/investors/profile/venturefriends) — VC Fund, 1 deal together

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## Featured in investor lists
- [All Angel Investors in Greece](https://shizune.co/investors/angel-investors-greece)
- [Medical Device Investors in Greece](https://shizune.co/investors/medical-device-investors-greece)
- [Medical Device Angel Investors in Greece](https://shizune.co/investors/medical-device-angel-investors-greece)

## FAQ

### What does Marina Hatsopoulos invest in?

Marina Hatsopoulos invests primarily in Health Care, Medical Device and Personalization startups, most often at Angel and Series A stage. Most of the 2 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 Marina Hatsopoulos?

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 Marina Hatsopoulos last invest?

The most recent investment recorded for Marina Hatsopoulos closed in Mar 2017. Shizune tracks 2 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 Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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