Sievers: Bremen

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Zwinglistraße 31
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Fully operational facility
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Sievers: Bremen

Year Built: 2025
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In Bremen, Germany, data center operator Sievers runs a Tier 4-certified facility in a repurposed nuclear shelter. The 2,000-square-meter (21,527-square-foot), windowless facility was reportedly built in 1944 as a bomb shelter. During the Cold War, it was converted into a nuclear shelter before German construction company Carbocon helped transform the site into a data center. At the time, it was operated by colocation provider ColocationIX.

Map and Nearby Locations:

Zwinglistraße 31
Sievers Group Sites
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Sites within 15 miles of Sievers: Bremen

Distance Site About
1.37 miles PLUTEX Bremen
1.51 miles ColocationIX Bremen
1.55 miles euNetworks Bremen

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Sievers opens data center in former German nuclear shelter.
Source: Sievers Group

Operating Company

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Sievers Group is a German data center operator offering comprehensive IT solutions. The company has over 300 employees across five locations and a history of over 25 years. They provide solutions, including business software, infrastructure, and communication systems, to over 1,000 customers annually.

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5MW
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