Björn Rambags

Strategic advisor & executive | Governance, transformation & performance in complex organisations | Former GM & Chief of Staff

📍 Netherlands🔄 Updated September 2026💼 6 investments📅 7 years investing🗓 Last invested Jan 2024
VC🌍 Netherlands
6
Total investments
3
Early stage
2
Mid stage
0
Late stage
7y
Years active

Portfolio

5 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor
Jan 2024
Bitcoin mining is making global headlines for its electricity consumption, which exceeds that of Argentina, Norway, and many other developed countries. The computers that run the Bitcoin network, which “mine” new coins, are very energy intensive, pushing miners to the corners of the world where electricity is cheapest. What are the ripple effects and implications of this industry, which capitalizes on stranded energy sources, and what are the consequences for the surrounding communities and the environment? DIRTY COIN is a thought-provoking documentary directed by Alana Mediavilla that delves into the controversial world of Bitcoin mining. The film challenges conventional wisdom about the environmental impact of Bitcoin and explores how this emerging technology could drive significant improvements in our energy infrastructure. Through a combination of expert interviews, on-the-ground investigations, and compelling narratives, DIRTY COIN seeks to reshape the dialogue around Bitcoin data centers and their capacity to contribute positively to global energy solutions. Premiering to critical acclaim and winning Best Movie, the documentary sets the stage for a broader discussion on the future of energy and technology.
Advisory Board Member & Early-Stage Investor
Feb 2023
OASYS NOW | Enabling Trustworthy AI in Healthcare OASYS NOW is a privacy-first AI-native healthtech company dedicated to making precision medicine and clinical research more inclusive, efficient, and secure. We build cutting-edge, certified AI solutions that empower hospitals and research institutions to unlock the full value of their data, while ensuring patient privacy from the ground up. 🔐 Our certified infrastructure (ISO27001 & NEN7510) enables safe deployment of AI in sensitive environments, including on textual and genomic data. 🧠 ELaiGIBLE, our AI-powered patient pre-screening tool, increases clinical trial capacity by up to 20% through precision cohort identification. 📄 De-ID, our state-of-the-art pseudonymisation pipeline, turns all types of unstructured data — from free text to PDFs — into safe, AI-ready input. 📱 GRIP App — our patient-facing platform — empowers individuals to control their own data and discover research opportunities. We work closely with hospitals, research departments, and life sciences partners across Europe to make data-driven healthcare innovation accessible, compliant, and future-proof. 🏆 Recognized with the Dutch Data Privacy Award & European AI Cybersecurity Award from European Lighthouse for Safe & Secure AI 🚀 Winner of SLUSH 100 and Featured in Forbes 30 Under 30 Europe (Science & Healthcare), among others. 🤝 Ready to pilot or partner? Get in touch.
Founding Collective l Strategy Advisor & Investor
Aug 2022
Green Mining is a Swiss-based Bitcoin infrastructure company that gives investors direct ownership in sustainable mining operations — not cloud contracts, not tokens. Real equity. Real returns. We build and operate Bitcoin data centers powered by 100% renewable energy. Our investors hold shares in Swiss AG infrastructure companies and receive quarterly BTC payouts directly to their wallets. What sets us apart: → Real infrastructure ownership — Swiss AG shares with full shareholder rights → BTC at production cost = 10–20% annual ROI paid in BTC → 100% hydropower across all facilities → Full transparency, quarterly reporting, and investor voting rights Our track record: → 300+ investors across 4 data centers → 50+ BTC produced for our community → 5+ Mio. CHF AUM → NPS +48 — 83% of investors rate us "smooth, trustworthy, excellent" We started Green Mining because we experienced firsthand how broken the Bitcoin investment market was — cloud mining scams, no real ownership, no accountability. We built the company we wished had existed. Featured in Wirtschaftswoche, Bilanz, Business Insider, Deutsche Start-ups & Start-up Valley. Serious about Bitcoin infrastructure investing? Follow us for market insights, operational updates, and investor content — or reach out directly.
Executive & Mid-stage Investor
Jun 2022
Our vision We believe in a world of independence with emphatic care for our elders. Our mission Our user-centric digital solutions aim to improve everyday life for elders and carers, allowing you to always be present: fully engaged when you are together, and almost there when you are apart. Welcome to our world!
Investor
May 2022
Orlar’s Vertical Agriculture: Revolutionising the Way Produce is Grown in Vietnam Orlar’s patented technology brings together 2 key components to make contaminant-free produce accessible and economical for Vietnam: 1) Orlarock TM - our exclusive organic certified mineral growing material; and 2) Vertical pods - our innovative, safe and resource efficient growing technique. Orlarock - Australian Organic Certified The foundation of our production, Orlarock, is imported directly from Australia. It’s unique properties capture all the added nutrients, resist disease, avoid crushing in vertical arrangements, and retain the optimal amount of water (resulting in proper growth without disease). Using Orlarock allows us to grow pure produce from start to finish, free from the contaminants often found in local soil. Orlar grow delicious, nutritious and SAFE produce for you and your family. Vertical Pods Designed by Dr. Lyndal Hugo, one of the co-founders of Orlar, our vertical pods are the result of five years of careful research and optimisation. With special attention to the number of plants in each pod and the capture of optimal light for proper growth, each pod is able to reduce the energy use of traditional hydroponics by over 95%. Specially designed vents allow for maximum airflow, naturally preventing disease. Our state-of-the-art vertical farms use up to 95% less energy than hydroponics. We grow produce that has net negative greenhouse gas emissions and pose no threat of nutrient or pesticide pollution. So, not only do you and your family get the most delicious, nutritious and safe food, you are also minimising the impact on the environment.
Experience · 10 entries
All (10)
Investments (6)
Founder (3)
Board (1)
2026
Co-Founder
Jun 2026
Eolira enables trust across critical life-science transitions.
2024
Investor
Jan 2024
Bitcoin mining is making global headlines for its electricity consumption, which exceeds that of Argentina, Norway, and many other developed countries. The computers that run the Bitcoin network, which “mine” new coins, are very energy intensive, pushing miners to the corners of the world where electricity is cheapest. What are the ripple effects and implications of this industry, which capitalizes on stranded energy sources, and what are the consequences for the surrounding communities and the environment? DIRTY COIN is a thought-provoking documentary directed by Alana Mediavilla that delves into the controversial world of Bitcoin mining. The film challenges conventional wisdom about the environmental impact of Bitcoin and explores how this emerging technology could drive significant improvements in our energy infrastructure. Through a combination of expert interviews, on-the-ground investigations, and compelling narratives, DIRTY COIN seeks to reshape the dialogue around Bitcoin data centers and their capacity to contribute positively to global energy solutions. Premiering to critical acclaim and winning Best Movie, the documentary sets the stage for a broader discussion on the future of energy and technology.
2023
Advisory Board Member & Early-Stage Investor
Feb 2023
OASYS NOW | Enabling Trustworthy AI in Healthcare OASYS NOW is a privacy-first AI-native healthtech company dedicated to making precision medicine and clinical research more inclusive, efficient, and secure. We build cutting-edge, certified AI solutions that empower hospitals and research institutions to unlock the full value of their data, while ensuring patient privacy from the ground up. 🔐 Our certified infrastructure (ISO27001 & NEN7510) enables safe deployment of AI in sensitive environments, including on textual and genomic data. 🧠 ELaiGIBLE, our AI-powered patient pre-screening tool, increases clinical trial capacity by up to 20% through precision cohort identification. 📄 De-ID, our state-of-the-art pseudonymisation pipeline, turns all types of unstructured data — from free text to PDFs — into safe, AI-ready input. 📱 GRIP App — our patient-facing platform — empowers individuals to control their own data and discover research opportunities. We work closely with hospitals, research departments, and life sciences partners across Europe to make data-driven healthcare innovation accessible, compliant, and future-proof. 🏆 Recognized with the Dutch Data Privacy Award & European AI Cybersecurity Award from European Lighthouse for Safe & Secure AI 🚀 Winner of SLUSH 100 and Featured in Forbes 30 Under 30 Europe (Science & Healthcare), among others. 🤝 Ready to pilot or partner? Get in touch.
2022
Founding Collective l Strategy Advisor & Investor
Aug 2022
Green Mining is a Swiss-based Bitcoin infrastructure company that gives investors direct ownership in sustainable mining operations — not cloud contracts, not tokens. Real equity. Real returns. We build and operate Bitcoin data centers powered by 100% renewable energy. Our investors hold shares in Swiss AG infrastructure companies and receive quarterly BTC payouts directly to their wallets. What sets us apart: → Real infrastructure ownership — Swiss AG shares with full shareholder rights → BTC at production cost = 10–20% annual ROI paid in BTC → 100% hydropower across all facilities → Full transparency, quarterly reporting, and investor voting rights Our track record: → 300+ investors across 4 data centers → 50+ BTC produced for our community → 5+ Mio. CHF AUM → NPS +48 — 83% of investors rate us "smooth, trustworthy, excellent" We started Green Mining because we experienced firsthand how broken the Bitcoin investment market was — cloud mining scams, no real ownership, no accountability. We built the company we wished had existed. Featured in Wirtschaftswoche, Bilanz, Business Insider, Deutsche Start-ups & Start-up Valley. Serious about Bitcoin infrastructure investing? Follow us for market insights, operational updates, and investor content — or reach out directly.
Executive & Mid-stage Investor
Jun 2022
Our vision We believe in a world of independence with emphatic care for our elders. Our mission Our user-centric digital solutions aim to improve everyday life for elders and carers, allowing you to always be present: fully engaged when you are together, and almost there when you are apart. Welcome to our world!
Show all 10 entries ↓
Investment activity
2019–2024 · 6 investments
20191202232023120241
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