Press Kit
Green Mining DAO: A Snapshot
Our Mission
Operate leading, community-owned Bitcoin mining facilities powered by efficient, sustainable energy.
Our Vision
Make sustainable Bitcoin mining profitable and accessible, driving inclusivity and transformation for the future.
What Do We Do?
Everything. You just sit back and get Bitcoin.
We help investors become co-owners of sustainable Bitcoin mining facilities, enjoying quarterly Bitcoin payouts delivered directly to their wallets.
Our Brand Promises
We’re transforming Bitcoin mining into a venture where profitability meets sustainability.
Our commitment is to ensure you 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 you 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.
Gain Bitcoin below market prices without the hassle, just the rewards.
Timely Transparency
Stay informed.
Clear updates and insights keep you ahead in your Bitcoin mining journey.
Our Story
Founder Sascha Grumbach discovered Bitcoin in Berlin back in 2012. His exploration of the Bitcoin mining industry throughout the years revealed a troubling pattern: companies often failed to deliver on their promises of environmental responsibility. Determined to change this, in 2022, Sascha joined forces with Valentine Pleser to create Green Mining DAO, a venture rooted in sustainable, innovative, and community-focused Bitcoin mining.
From the start, Green Mining DAO set out to redefine mining practices. By harnessing 100% hydroelectric energy, the company minimizes carbon emissions while repurposing excess heat to dry fruits — combining profitability with sustainability. Operating as a Decentralized Autonomous Organization (DAO), Green Mining DAO emphasizes transparency, inclusivity, and shared decision-making, embodying the decentralized ethos of blockchain technology.
Our latest flagship project, Green Mine #003 (GM3) takes this vision further. GM3 democratizes access to Bitcoin mining by offering investors Bitcoin at production cost, eliminating barriers typically associated with mining. Powered entirely by renewable energy, GM3 achieves CO2-neutral operations, ensuring minimal environmental impact while delivering long-term profitability.
Our Team
Sascha Grumbach is the visionary founder and CEO of Green Mining DAO, a company driving sustainable, CO₂-neutral Bitcoin mining. His mission is to create a community-organized mining ecosystem that leverages renewable energy at competitive prices and provides investors with direct access to Bitcoin. Sascha brings extensive experience to the table: he has founded over 10 startups, raised millions in capital, and built high-performing teams. Additionally, he has expertise in product development, leadership, and digital transformation. Active in the blockchain space since 2015, Sascha is known for his tireless dedication to bringing innovative project ideas to life. With Green Mining DAO, he is setting new standards for sustainable Bitcoin mining.
Valentine Pleser is the Co-Founder of Green Mining DAO and a driving force in sustainable innovation and community building. Together with Sascha, she spearheaded a successful private sale that enabled eco-friendly mining operations in Paraguay. Valentine brings diverse experience from roles at The Argonauts, Accenture, and BearingPoint to her work at Green Mining DAO, where she leads strategy, marketing, and community management. As an expert in DAOs and sustainable technologies, she has shaped the company, driven growth, and built an engaged community. Her passion for sustainability and innovative approaches makes her a key leader at Green Mining DAO.
Miguel Monteiro, Head of Investor Relations & Community at GMD, brings over 15 years of creative expertise and entrepreneurial energy to the team. A master storyteller with a sharp eye for photography and a relentless drive for innovation, Miguel has crafted a career at the intersection of advertising, fintech, and the dynamic Bitcoin and crypto landscape—a field that has captivated him since 2017. Transitioning seamlessly from traditional advertising into fintech, Miguel thrives on solving complex challenges with fresh ideas and out-of-the-box thinking. At GMD, he channels his vision, creativity, and passion for forging meaningful connections between people and ideas, driving both innovation and community engagement to unparalleled heights.
Jode Wardell, Global Head of Bitcoin Mining Operations, brings over 30 years of experience in automation and engineering. Jode has played a pivotal role in the development of the UK energy sector, including significant projects for The National Grid. His extensive expertise includes the architecture of complex systems, successfully applied to high-profile projects for the UK government. Since September 2024, Jode has been leading GMD's mining operations in Paraguay, with a primary focus on maximizing process efficiency by capturing and reusing 100% of the heat generated during mining. Jode’s leadership embodies GMD's commitment to innovation and environmentally friendly solutions in the Bitcoin mining sector, driving the vision of a more sustainable, technology-driven financial future.
Jan Horak, an accomplished communications strategist and tech marketing expert, Jan brings more than 15 years of experience building and leading international teams in fast-paced and high-growth environments. His work spans the intersection of Web3, GreenTech, and FinTech, where emerging technologies meet real-world application. Jan is known for launching and scaling communications functions from the ground up, especially in startup and scale-up settings.
Need more info, or would you like
to talk to our founders?
Get in touch. Our team is happy to help.
Contact press@greenminingdao.io
Media assets
News & Press Releases
GMD in the News
Don't trust, verify. Explore our podcast features and media highlights to see why Green Mining DAO is unlike anything else in Bitcoin mining.
In this feature for MoneyToday, journalist Ruedi Maeder explores Green Mining DAO’s approach to combining profitability with sustainability. The article highlights how we run our mining sites in Paraguay fully on renewable hydropower, reuse heat for drying mangoes to reduce production cost and support local communities, and distribute quarterly Bitcoin dividends to investors through tokenized shares.
Can Bitcoin mining be both sustainable and profitable?
August 25, 2025
In an in-depth interview with Bitcoin2go’s Dajana Eder, our co-founder Valentine reflects on her journey in Bitcoin — from the early days of skepticism to building one of the most cost-efficient and sustainable mining models in the industry. She speaks about operating 100% on hydropower, reusing waste heat to dry fruit, tokenized co-ownership for investors, and why resilience, authenticity, and community are at the heart of her work.
Valentine’s journey into sustainable Bitcoin mining
August 12, 2025
June 5, 2025
BILANZ covered our story as a Zug-based startup mining Bitcoin sustainably with hydroelectric power in Paraguay. The article highlights our energy-efficient infrastructure, the creative reuse of mining heat to dry mangoes, and our unique co-ownership model, showcasing how Green Mining DAO is making Bitcoin mining accessible, profitable, and climate-responsible.
Zug-based startup mines Bitcoin using hydroelectric power
May 29, 2025
For a story on the success factors of Swiss fintech startups, Finanz und Wirtschaft interviewed both our co-founders, Valentine and Sascha. The article highlights Green Mining DAO’s unique co-mining model, illustrates how we have successfully built a thriving business supported by a diverse community of investors, and explains how Switzerland offers the ideal environment for our venture.
The success formula of Swiss fintech startups
Read on FuW.ch
(subscription needed)
May 14, 2025
For this episode of the Relai podcast, Sascha joined host Joël Kai Lenz to explore how Bitcoin mining can be profitable, sustainable, and accessible. Sascha shared his personal journey through more than a decade in Bitcoin mining, gave insights into Green Mining DAO’s unique Swiss AG structure and tokenized ownership model, and discussed the industry shift towards greener operations.
Why Companies are turning to Green Bitcoin Mining
![A digital graphic featuring three individuals, a woman on the left, a man in the center, and another man on the right. The background has a dark blue color with a stylized waveform pattern. The woman on the left has long, brown hair and is wearing a red blazer. The man in the center has short, dark hair and is dressed in a blue suit with a white shirt. The man on the right has a beard, is wearing a black cap with a Batman logo, and a white T-shirt. The text identifies them as Valentina Pleser (guest), Eric Heinemann (host), and Sascha Grumbach (guest), affiliated with Green Mining DAO. The top of the graphic includes logos for 'BE [in] CRYPTO' and 'Crypto Nerds'.](https://images.squarespace-cdn.com/content/v1/67247d608dd4b342c799fa7b/07184650-731c-40bf-bf04-33dda1009a4e/Podcast_ERIC-4-850x478.png.jpg)
April 17, 2025
BeInCrypto also featured Sascha’s and Valentine’s guest apperance on the CryptoNerds podcast. They published a news article including a short summary of the discussion, also pointing out Green Mining DAO’s innovative approach to sustainable Bitcoin mining, and highlighting our Co-Founder’s subject matter expertise in the space.
Bitcoin Mining & Sustainability: CryptoNerds in discussion with Experts
April 17, 2025
Sustainable Bitcoin Mining: Green Mining DAO’s Vision
For this episode of the CryptoNerds podcast, both Valentine Pleser and Sascha Grumbach joined the host Eric Heinemann to discuss Bitcoin mining, the state of the industry, and future trends. Our Co-Founders explain Bitcoin mining basics, the vision behind Green Mining DAO, and how mining can be both profitable and sustainable.
April 7, 2025
Green Mining DAO - Sascha’s Journey into Sustainable Bitcoin Mining
21Focus is a German Bitcoin industry podcast that regularly features entrepreneurs and other key figures from the German Bitcoin scene. In this interview, Sascha Grumbach tells the story of how he and Valentine Pleser founded Green Mining DAO, explains how GMD revolutionizes Bitcoin mining, and shares his experiences from building and managing a Bitcoin startup.
In this podcast interview with Road-X, our Co-Founder & CEO Sascha explains how we're redefining Bitcoin mining by aligning decentralized governance with sustainable infrastructure. The conversation also covers topics like monetary independence and freedom, made possible with Bitcoin.
Bitcoin Mining Reinvented: The Green Energy Revolution!
March 7, 2025
February 26, 2025
Green Mining DAO: Sustainable Mining Venture mines BTC way below Market Price
In this feature article based on an interview with our Co-Founders, Valentine Pleser and Sascha Grumbach, CoinPro.ch dives deep into Green Mining DAO’s innovative model. They explain what sets GMD’s co-mining model apart from other mining providers, touch upon how excess heat is reused to dry food, and outline how investors can participate and benefit.
February 25, 2025
Based on an interview with our Co-Founder and CEO, Sascha Grumbach, Bitcoinblog.de dive deep into Bitcoin mining in Paraguay, and how the country is cooperating with mining companies like Green Mining DAO to expand and stabilize the grid. A special focus lies on GMD’s innovative heat reuse model, which uses excess heat to dry food, like the Bitcoin Mango.
Mining with Mango
February 9, 2025
In this interview with Robin Seyr, Sascha Grumbach explains how Green Mining DAO operates, allowing investors to participate in Bitcoin mining while receiving dividends in Bitcoin. The discussion also delves into innovative heat reuse solutions, the future of tokenization, and the potential for Bitcoin to revolutionize capital markets.
2X Bigger Bull Run: This Cycle Changes EVERYTHING!
July 8, 2024
In this guest article for Business Punk, our Co-Founder, Valentine Pleser, addresses the concerns and misconceptions surrounding Bitcoin and its ecological footprint. She explains how the Bitcoin mining industry not only uses mostly renewable energy already, but also has the potential to play a huge role in driving the clean energy transition.
Bitcoin’s bad reputation is outdated - the Industry is going green
Wallstreet Online interviewed our Co-Founders Valentine Pleser and Sascha Grumbach to talk about Bitcoin mining and its energy footprint. Both explain how producing Bitcoin can be 100% sustainable if done right, and how Green Mining DAO is paving the way with its green, profitable, and easily accessible co-mining model.
April 20, 2024
Mining Bitcoin sustainably
April 11, 2024
For this article, Bitcoin Magazine interviewed industry experts – including our Co-Founder and CEO, Sascha Grumbach – on how they deal with the 2024 Bitcoin halving. Sascha shares his thoughts on challenges and solutions, including revenue diversification and minimizing operational costs. He explains how Green Mining DAO is well-positioned and poised to thrive in the next cycle.
A Deep Dive Into Bitcoin Miners’ Strategies During The Halving
January 3, 2024
In this feature article, BTC-Echo portrays Green Mining DAO and interviews our founders, Sascha Grumbach and Valentine Pleser. The article also addresses common misconceptions about Bitcoin’s energy use and environmental impact, and refer’s to GMD as a best-practice example of a truly sustainable Bitcoin mining venture.
Bitcoin for 10,000 Euros? A Mining Oasis in Paraguay makes it possible