The exit was not the end of risk. Marc invests a relevant part of what he built back into people and ideas in environment, health, and education.
With his own capital. With entrepreneurial experience. And with the willingness to stay when things get hard.
I'm not a VC. I see myself as an entrepreneur of life. What the exit gave me, I invest back into risk. Because I have seen what is broken. And I know founders brave enough to fix it.
I'm not interested in perfect answers – I'm interested in people brave enough to build better ones.
I invest with my own money. And with experience from the moments when a company is no longer just business – it becomes personal.
Entrepreneurs are hopeless optimists. They create something that does not yet exist. They challenge the status quo instead of merely managing it a little better. And they build solutions for societal challenges instead of just pointing at them.
I believe societal benefit and economic success belong together. Not despite returns. But because good solutions can only scale when they are economically sound.
A large share of plastic waste reaches our oceans through rivers. Everwave makes these streams visible and removes the waste before it reaches the sea.
I have spent a large part of my life on and in the ocean. In Bali, I paddled through plastic. For me, this problem is not abstract.
Caire AI measures vital signs by camera – contactless, fast, and without extra devices. That saves routine time in everyday clinical practice. Time that is needed where it truly counts: with patients.
I come from the surgical world. I know how much better medicine becomes when technology relieves people and gives them more time for one another again.
Many people wait years for a reliable ADHD diagnosis. MetaAIDiagnostic is developing a biomarker-based home test designed to shorten the path to clarity significantly.
Few investments are as personal to me as this one. Because earlier understanding changes more than a diagnosis – it often changes a whole life.
Capacura opens investments in impact startups to private investors. Solving societal problems takes capital. And capital may expect returns – without impact becoming an afterthought.
I invest alongside them – and through them. Because returns are worth more to me when something good can grow out of them at the same time.
Every child learns differently. Yet our education system often treats them all the same. Scobees enables self-organized, individual learning in the classroom – not as a vision of the future, but in everyday school life.
Children should be able to grow with their own strengths. Technology can help. To me, education is one of our most important societal assets.
Healthy food for kids rarely fails because of knowledge – it fails because of time, daily life, and available alternatives. Ratzfatz Food develops healthy frozen meals for children and modern families – built by three female founders who know this problem first-hand.
It's not just the product that convinces me. It's people who turn a real everyday problem into a better solution.
The interactive therapy ball ichó responds to touch with light, sound, and vibration. It opens doors to people with dementia and supports children in therapeutic settings.
I know the effects of dementia from my own family. Anything that reaches people again, activates them, and makes connection possible deserves a chance.
Not every mission fits into an equity stake. And not every form of support starts with capital. Some people and organizations I accompany because they have become part of my own story – and because their work protects or carries on something that matters to me personally.
On the day I faced my greatest fear in Nazaré, João Macedo helped me turn that fear into energy.
With the Hope Zones Foundation, he protects the ocean – among other things through a regenerative seaweed farm off Nazaré that strengthens marine ecosystems while creating new economic opportunities for local fishing communities.
As a founding member, I support this work not only out of gratitude. But because the ocean sustains all of our lives.
RIMASYS – where it all began. Not an investment: the foundation. A Cologne bone lab became worldwide training for surgeons. Even after the operational handover, RIMASYS remains part of Marc's story – as founder, he keeps supporting the team as a sparring partner.
rimasys.com →
Entrepreneurship is an adventure. But nobody should have to walk the hardest stretches alone.
I accompany the founders I invest in as a sparring partner. Not as a textbook coach. But as someone who has experienced first-hand how personal entrepreneurship can become.
When the most important business meeting suddenly collides with your partner's long-planned birthday party.
When a financing round collapses and suddenly the question in the room is who has to be let go.
When working with a friend inside the company breaks apart – and hardly anyone in your shared circle understands what really happened.
Or when you realize at some point that along the way you are losing not just sleep and health, but friends and people who were once close to you.
I was the founder who woke up in the middle of the night countless times not knowing how to go on. That's why I don't just share what worked. I share what I wished for back then: someone who doesn't just give well-meant advice, but knows how it feels.
Not every crisis makes us stronger. But the right companionship can keep us from breaking under it alone.
For conversations about environment, health, education, and the adventure of entrepreneurship.
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