Harm-Jan Wessels

Serial entrepreneur, investor, advisor, and board member in Digital Health

📍 Netherlands🔄 Updated September 2026💼 4 investments📅 18 years investing🗓 Last invested Jun 2025
VC🌍 Netherlands
4
Total investments
1
Early stage
0
Mid stage
1
Late stage
18y
Years active

Portfolio

3 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor and Advisor
Jun 2025
AI-Powered PACS Migrations – 10x Faster, High-Quality, and Scalable Datamonk is transforming healthcare data migrations with AI. Today, PACS migrations are slow, manual, and expensive—they take months up to years. Our AI-driven platform automates the entire process, enabling hospitals, imaging centers, and PACS providers to migrate medical imaging data 10x faster and with superior data quality. Built by a team with decades of healthcare IT expertise, Datamonk is shaping the future of healthcare data migrations. Get in touch to learn more.
Board Member
Oct 2023
Die Neckarsulmer Health Data Technologies GmbH entwickelt einen sicheren Datenraum für medizinische Forschung und Entwicklung in Europa. Neben der DSGVO-konformen Speicherung und Verarbeitung in einer dedizierten Plattform für medizinische Daten, ermöglicht die Honic Plattform mit Hilfe von Datentreuhändern und Verschlüsselungstechnologien eine use-case spezifische Aggregation und Kombination medizinischer Versorgungsdaten. Die DSGVO-konforme Bereitstellung der Daten in anonymisierter Form ermöglicht vertiefte Forschung und Entwicklung Dritter.
Member of the Board
Jan 2008
IHE is an initiative by healthcare professionals and industry to improve the way computer systems in healthcare share information. IHE promotes the coordinated use of established standards such as DICOM and HL7 to address specific clinical needs in support of optimal patient care. Systems developed in accordance with IHE communicate with one another better, are easier to implement, and enable care providers to use information more effectively.
Experience · 7 entries
All (7)
Investments (4)
Founder (2)
Board (2)
2025
Investor and Advisor
Jun 2025
AI-Powered PACS Migrations – 10x Faster, High-Quality, and Scalable Datamonk is transforming healthcare data migrations with AI. Today, PACS migrations are slow, manual, and expensive—they take months up to years. Our AI-driven platform automates the entire process, enabling hospitals, imaging centers, and PACS providers to migrate medical imaging data 10x faster and with superior data quality. Built by a team with decades of healthcare IT expertise, Datamonk is shaping the future of healthcare data migrations. Get in touch to learn more.
2023
Board Member
Oct 2023
Die Neckarsulmer Health Data Technologies GmbH entwickelt einen sicheren Datenraum für medizinische Forschung und Entwicklung in Europa. Neben der DSGVO-konformen Speicherung und Verarbeitung in einer dedizierten Plattform für medizinische Daten, ermöglicht die Honic Plattform mit Hilfe von Datentreuhändern und Verschlüsselungstechnologien eine use-case spezifische Aggregation und Kombination medizinischer Versorgungsdaten. Die DSGVO-konforme Bereitstellung der Daten in anonymisierter Form ermöglicht vertiefte Forschung und Entwicklung Dritter.
Co-Founder & CEO
Jun 2023
At HealthSage AI, we are dedicated to unlocking the potential of generative AI to address key challenges in healthcare. We aim to empower a connected healthcare system where clinical best practices and the latest AI models and applications are accessible to all care providers and patients . Our open Health AI platform for generative AI provides healthcare providers and IT companies a secure foundation to access, run, and develop AI models and applications. Our Large Language Model transforms unstructured medical data into structured FHIR, SNOMED-CT, and ICD-10 standards to automate physician workflows, enhance interoperability, and enable caregivers to leverage data for clinical research and value-based healthcare . Follow us to learn how AI can help you improve patient care and stay updated on our company developments.
2022
Investor and Advisor
Jul 2022
Holland Capital has been responsibly and successfully investing in promising Dutch and German SMEs with growth ambitions for over 40 years. The team understands entrepreneurship and fosters an open, sustainable, and professional relationship with the management teams of the invested companies, aiming for mutual growth. With offices in Amsterdam and Düsseldorf, Holland Capital focuses on Healthcare, and Technology sector.
2019
Member of The Board of Advisors
Nov 2019
NextGen Ventures invests in innovative companies that drive change in healthcare. info@nextgenventures.nl
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Investment activity
2008–2025 · 4 investments
20081202212023120251
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