maincubes: private data-centre platform

By Fjord Journal · AI-assisted reporting and analysis

Business and project role

maincubes develops and operates data centres. At Nauen in Brandenburg, its mainHub Berlin campus plans up to six buildings, with BER02 first. Its 200 MW grid agreement and power works are distinct from delivered computing capacity.

Ownership and disclosure

Funds advised by DTCP are the majority shareholder. maincubes is a private platform; no public quarterly financial statements were identified in the reviewed official materials. The available shareholder financing release is not an audited financial report.

Financing in context

The January 2026 €2.475 billion platform package combines €1.775 billion of committed facilities and a €700 million uncommitted accordion. It supports portfolio refinancing and development. The reviewed documents do not allocate a verified amount to Nauen or establish spending there.

What to watch

Substation equipment installation and energization, building-permit conditions, named customer commitments and first BER02 service. The operator’s live English and German project pages list Q3 2028 for BER02, while its undated English factsheet still lists Q1 2028. The conflicting targets do not establish a confirmed service date; the reviewed documents do not establish a revision chronology or a confirmed delay. Project-level capital allocation and operating economics remain undisclosed in the reviewed evidence.

mainHub Berlin / Nauen project profile

Official ownership and disclosure sources

Private platform; no stock ticker or public quarterly financial statements established in reviewed materials. This is not a claim that statutory accounts do not exist.