# Björn von Siemens

> Björn von Siemens is a seed investor at Caresyntax backing Health Care. See 6 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Fund: Caresyntax
- Location: Berlin, Germany
- Total investments: 6
- Last investment: Jun 2024
- Lead investor: 17%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/bjoernvonsiemens
- X (Twitter): https://twitter.com/bjoernvsiemens
- Website: https://x.com/bjoernvsiemens

Björn von Siemens is a seed investor at Caresyntax in Berlin focused on Health Care and Medical. Björn von Siemens is the Co-Founder and CFO of Caresyntax. He previously worked at Boston Consulting Group (BCG) as a Healthcare Consumer. Björn von Siemens attended Harvard University.

## Contacts

5 contacts available for Björn von Siemens: 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/bjoern-von-siemens?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Health Care | 2 | 33% |
| Medical | 1 | 17% |
| Software | 1 | 17% |
| Analytics | 1 | 17% |
| E-Commerce | 1 | 17% |

10 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 1 | 17% |
| Angel | 1 | 17% |
| Pre-Seed | 1 | 17% |
| Series A | 1 | 17% |
| Series C | 1 | 17% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Germany | 2 | 33% |
| United States | 1 | 17% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Lillian Care | Lillian is building a nationwide network of health facilities in Germany. | $1.6M | Seed | Jun 18, 2024 |  |
| Lillian Care | Lillian is building a nationwide network of health facilities in Germany. | $2.6M | Pre-Seed | Aug 01, 2023 |  |
| Caresyntax | Caresyntax is a digital surgery platform that enables OR teams to predict and improve surgical performance. Its enterprise-grade digital surgery platform delivers insights to improve patient outcomes by using proprietary software and AI to analyze large volumes of video, audio, images, device data, clinical, and operational data in and around theOR.Caresyntax insights help surgeons benchmark and improve their care, hospital administrators use surgical resources more efficiently, medical device companies advance better products, and insurance companies understand risk and devise more tailored policies. The software is used in more than 4,000 operating rooms worldwide, has supported more than 30,000 surgeons, and improved care for more than 2 million patients. | $130M | Series C | Sep 16, 2021 |  |
| Caresyntax | Caresyntax is a digital surgery platform that enables OR teams to predict and improve surgical performance. Its enterprise-grade digital surgery platform delivers insights to improve patient outcomes by using proprietary software and AI to analyze large volumes of video, audio, images, device data, clinical, and operational data in and around theOR.Caresyntax insights help surgeons benchmark and improve their care, hospital administrators use surgical resources more efficiently, medical device companies advance better products, and insurance companies understand risk and devise more tailored policies. The software is used in more than 4,000 operating rooms worldwide, has supported more than 30,000 surgeons, and improved care for more than 2 million patients. | $100M | Series C | Apr 28, 2021 |  |
| friendfund | friendfund is a socially integrated group payment method. Using the social network infrastructure of Facebook and Twitter, friendfund connects you to the people you already know to enable dynamic social commerce.A friendfund enables friends to collect money for something that they do together. You can friendfund a group gift, purchase equipmentfor your local club, organise a group holiday or anything you like. friendfund supports any kind of group payment. Your imagination is the only limit! |  | Angel | Feb 03, 2011 |  |
| Caresyntax | Caresyntax is a digital surgery platform that enables OR teams to predict and improve surgical performance. Its enterprise-grade digital surgery platform delivers insights to improve patient outcomes by using proprietary software and AI to analyze large volumes of video, audio, images, device data, clinical, and operational data in and around theOR.Caresyntax insights help surgeons benchmark and improve their care, hospital administrators use surgical resources more efficiently, medical device companies advance better products, and insurance companies understand risk and devise more tailored policies. The software is used in more than 4,000 operating rooms worldwide, has supported more than 30,000 surgeons, and improved care for more than 2 million patients. | $20M | Series A |  |  |

6 of 6 investments shown.

## Co-investors
- [Intel Capital](https://shizune.co/investors/profile/intel-capital) — VC Fund, 3 deals together
- [Calm/Storm VC](https://shizune.co/investors/profile/calm-storm-ventures) — VC Fund, 2 deals together
- [Nina Capital](https://shizune.co/investors/profile/nina-capital) — VC Fund, 2 deals together
- [Optum Ventures](https://shizune.co/investors/profile/optum-ventures) — VC Fund, 2 deals together
- [Relyens](https://shizune.co/investors/profile/relyens) — VC Fund, 2 deals together
- [Vesalius Biocapital Partners](https://shizune.co/investors/profile/vesalius-biocapital-partners) — VC Fund, 2 deals together

## About Caresyntax

VC Fund · Boston, United States

Caresyntax is a digital surgery platform that enables OR teams to predict and improve surgical performance. Its enterprise-grade digital surgery platform delivers insights to improve patient outcomes by using proprietary software and AI to analyze large volumes of video, audio, images, device data, clinical, and operational data in and around theOR.Caresyntax insights help surgeons benchmark and improve their care, hospital administrators use surgical resources more efficiently, medical device companies advance better products, and insurance companies understand risk and devise more tailored policies. The software is used in more than 4,000 operating rooms worldwide, has supported more than 30,000 surgeons, and improved care for more than 2 million patients.

5 contacts available at Caresyntax.

| Name | Title | Profile |
| --- | --- | --- |
| Björn von Siemens | Co-founder and CBO | https://shizune.co/investors/profile/bjoern-von-siemens |
| Alexander Kis | Vice President | https://shizune.co/investors/profile/alexander-kis |
| Chiara Sommer | Investor | — |
| Dennis Kogan | Co-Founder and CEO | https://shizune.co/investors/profile/dennis-kogan |
| Michael S. Woods | Chief Medical Officer | — |

## Similar investors

### Similar industry
- [Draper Associates](https://shizune.co/investors/profile/draper-associates-2) — VC Fund
- [Seven Peaks Ventures](https://shizune.co/investors/profile/seven-peaks-ventures) — VC Fund
- [Allos Ventures](https://shizune.co/investors/profile/allos-ventures) — VC Fund

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund

### Similar country
- [HTGF (High-Tech Gruenderfonds)](https://shizune.co/investors/profile/high-tech-gr%C3%BCnderfonds) — VC Fund
- [HV Capital](https://shizune.co/investors/profile/holtzbrinck-ventures) — VC Fund
- [IBB Ventures](https://shizune.co/investors/profile/ibb) — VC Fund

## Featured in investor lists
- [Health Care Angel Investors in Germany](https://shizune.co/investors/health-care-angel-investors-germany)
- [Media (entertainment) Angel Investors in Germany](https://shizune.co/investors/media-entertainment-angel-investors-germany)
- [Crowdfunding Angel Investors in Europe](https://shizune.co/investors/crowdfunding-angel-investors-europe)
- [Social Media Investors in Germany](https://shizune.co/investors/social-media-investors-germany)
- [Social Media Angel Investors in Europe](https://shizune.co/investors/social-media-angel-investors-europe)
- [Crowdfunding Investors in Germany](https://shizune.co/investors/crowdfunding-investors-germany)

## FAQ

### What does Björn von Siemens invest in?

Björn von Siemens invests primarily in Health Care, Medical and Software startups, most often at Seed and Angel stage. Most of the 6 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 Björn von Siemens?

Public channels for Björn von Siemens include LinkedIn, X (Twitter) and the website linked on this profile. 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 Björn von Siemens last invest?

The most recent investment recorded for Björn von Siemens closed in Jun 2024. Shizune tracks 6 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