About Green Mining
Green Mining was founded by Sascha Grumbach and Valentine Pleser — two people who had experienced the dark side of the crypto world firsthand. Together they lost over CHF 250,000 through opaque cloud mining providers, scams and insolvencies. Instead of giving up, they drew a simple conclusion:
If the solution doesn't exist — then we'll build it ourselves.
Today we are GM Data Centers AG, headquartered in Zug, Switzerland. We develop and operate Bitcoin mining infrastructure based on renewable energy — starting with 100% hydropower in Paraguay. Our investors are not customers of a financial product. They are genuine co-owners of the physical mining infrastructure, with Swiss equity shares, voting rights, and quarterly Bitcoin distributions.
No cloud mining. No middleman. Real ownership. Backed by Swiss Law.
We're transforming Bitcoin mining into a venture where profitability meets sustainability. Our commitment is to ensure our investors gain maximum value while supporting a greener future. With cutting-edge technologies and renewable energy, we deliver sustainable mining solutions that are as rewarding for our investors as they are responsible for the planet.
Sustainable Profits
Profit with purpose. Renewable energy and cutting-edge tech drive sustainable, impactful Bitcoin mining.
Easy Access
Bitcoin mining, simplified. Our investors get Bitcoin below market prices without the hassle — just the rewards.*
Timely Transparency
Always informed. Clear updates and monthly reports keep our investors ahead in their Bitcoin mining journey.
* Bitcoin returns depend on numerous factors, including production costs and market prices. Past performance is not a guarantee of future returns. Subject to economic success and corresponding shareholder resolution.
Leadership Team
Green Mining is supported by an experienced advisory board with backgrounds in finance, energy, and Bitcoin infrastructure.
Trusted by 300+ investors worldwide
Our Story
Founded in Herisau, Switzerland.
GM1: First mining site operational in Paraguay.
First investor payouts. Community of 40+ investors.
GM2 launched. Expanded to 2 MW capacity.
GM3 Paraguay: 6 MW hydro-powered facility goes live.
+4.5 BTC distributed to investors. Heat reuse: tropical fruit drying.
+300 investors onboarded. Expansion to Africa and Europe in progress.
How we work
A small, highly motivated team — with one clear goal.
Builder Mindset
We don't talk — we build. Every decision gets executed, every problem gets solved.
Ownership Culture
Every team member thinks like an owner. We take responsibility for what we build.
Radical Transparency
Open books. On-chain data. Monthly reports — internal and external.
Long-term Thinking
Bitcoin is measured in decades. We build infrastructure for the next generation.
Want to work in the most exciting industry in the world?
We're Europe's leading Bitcoin miner — and we're growing. If you bring energy, drive and conviction, reach out.
