Professional miner hosting in enterprise data centers in the US and Asia — with industrial power from €0.062/kWh, 24/7 monitoring, and European contracts. 21 Strategy GmbH is your European contract partner for bitcoin mining hosting with personal support.

Bitcoin mining hosting is also referred to as bitcoin colocation— same service, different industry term. Your ASIC hardware sits in our colocation facility while you retain full ownership of the equipment. We run the operation: cheap industrial power, professional cooling, redundant supply, and 24/7 monitoring by trained data center technicians. Unlike cloud mining, you keep complete control over pool, wallet, and configuration — the hardware is and stays your property.
Two locations, one service level. Pick the one that matches your strategy — or diversify across both.


From hardware delivery to payout — we run the operation. You keep full control.
Industrial power instead of consumer rates. Antminer S19 Pro: ~€4.84/day in hosting vs. ~€23.40/day at home. That gap decides whether your operation is profitable.
You buy the ASIC miner and receive an invoice and serial number. The hardware is collectible or resellable at any time. Full control over pool, wallet, and configuration.
Data center technicians watch your miners around the clock. Firmware updates, pool optimization, and dust cleaning — all included. A personal contact for every question.
Professional cooling means optimal operating temperature = higher hashrate and longer service life for your ASIC miner.
Contracts under German law with 21 Strategy GmbH. Transparent cost structure, no hidden fees. English-speaking support on equal footing.
Start with 1 miner, scale to 100+. Up to 80 MW capacity in the US and 20 MW in Asia. Geographic diversification optional.
Bitcoin mining at home in Europe fails on power costs. Professional ASIC hosting closes that gap.
From inquiry to first hash — fast, simple, professional.
Reach out free and without obligation. We advise on hardware, location, and strategy — personal and on equal terms.
Antminer, Whatsminer, and Sealminer — buy through us or bring your own miner. We advise on efficiency and price-performance.
Pick US or Asia. You receive a European contract with transparent terms — no hidden clauses.
We install, cable, and configure your miner inside the data center. No setup fees, no hidden costs.
Your miner hashes 24/7. You control pool and wallet. We handle monitoring and maintenance — permanently.
21 Strategy GmbH is your European contract partner for professional mining hosting. Personal advice, transparent costs, and your miner online in 72 hours.