Aggregate Capital
A holding structure for reserves, strategy and long-term allocation.
Bitcoin Infrastructure
Eine europäische Holding-Plattform für physisches Mining und strategische Sachwerte.
Estara Capital OÜ
European investment, holding and capital allocation company.
Bit4mine Oy
Operational Bitcoin mining infrastructure in Finland.
Debt-Independent Growth
Equity capital, operational yield and strategic reinvestment.
1,000+ ASIC Miners
Long-range infrastructure expansion corridor through 2029.
Group Structure
A European platform for capital, energy and computational infrastructure.
Estara Capital is the strategic parent company of the group. It centralises capital allocation, governance, long-range planning and reinvestment discipline across the operating platform.
Bit4mine is the operational infrastructure arm: real ASIC miners, physical energy infrastructure, technical maintenance, Finnish sites and scalable long-term operations.
Investment Strategy
Reinvestment as the operating system of the group.
The platform is built around physical infrastructure, disciplined capital allocation and long-duration hard asset exposure rather than short-term speculation.
Operate Physically
ASIC miners, energy access, cooling, monitoring and technical maintenance.
Scale Yield
Operational mining returns are channelled back into hashrate, hardware and sites.
Grow Without Bank Debt
A capital-disciplined model designed to reduce dependency on external lenders.
Bit4mine Oy
Next-Generation Bitcoin Mining Infrastructure & Physical Asset Allocation.
Bit4mine is being developed as the group's operational infrastructure company, focused on hardware, energy access, site operations, maintenance procedures and controlled European scaling.
ASIC Mining Hardware
Energy Access & Grid Planning
Cooling, Monitoring & Maintenance
Scale path towards 1,000+ miners by 2029
Finland Operations
finland@bit4mine.eu
What & Why
Four hard-asset pillars behind the Estara Capital allocation model.
A focused allocation framework across Bitcoin infrastructure, physical uranium and institutional precious metal reserves.
Bitcoin Infrastructure & Hard Asset Allocation
Capital allocation into high-performance, tokenized Bitcoin mining operations in Finland, combined with direct asset exposure. We leverage Bitcoin as the ultimate modern hard asset and a systemic hedge against long-term fiat inflation.
Physical Uranium (The New Oil of the 21st Century)
Strategic positioning in the physical uranium market (Sprott Physical Uranium ETC). Uranium is rapidly becoming the defining commodity—the 'new oil'—powering the massive, non-stop baseload energy requirements of global AI and next-generation computing infrastructure.
Physical Gold (Systemic Inflation Protection)
Institutional precious metal reserves held as an absolute hard asset and macroeconomic anchor. Deployed specifically for core inflation protection and to guarantee ultimate balance sheet liquidity.
Physical Silver (High-Beta Portfolio Component)
A higher-risk, tactical asset inclusion with lower overall portfolio exposure. Leveraged for its dual nature as a vital, irreplaceable industrial component for high-tech applications and a tangible store of value.
Leadership
Founder-led governance with Marcel Milter and Jonas Köpke.
Both founders lead the group as CEO & Founder, with a long-term focus on infrastructure, capital discipline and strategic reinvestment.
MM
CEO & Founder
Marcel Milter
Capital governance, balance sheet discipline, reinvestment logic and long-term strategic direction.
JK
CEO & Founder
Jonas Köpke
Operational governance, mining infrastructure, site logic and technical expansion pathways.
GoMining & Tokenisation
The next layer: physical mining hardware represented as a digital infrastructure position.
Estara Capital extends its infrastructure strategy through selective GoMining exposure. The focus is on digital miners, tokenised mining hardware and NFT-like structures that translate real hashrate, energy consumption, maintenance and mining output into an investable digital format.
For the group, this is not a substitute for proprietary Bit4mine infrastructure. It is a second layer: direct physical operations in Finland combined with liquid, digital mining exposure through tokenised models.
The underlying thesis is simple: Bitcoin mining will not be defined by hardware alone. The clean representation of physical infrastructure as measurable, tradable exposure can become a critical part of professional capital formation.
Physical Energy
ASIC Hashrate
Digital Miner / NFT
BTC Yield Exposure
Investor Relations
Estara Capital Group
European capital allocation. Finnish Bitcoin mining infrastructure. Hard asset reserves.