Published 2026-09-12 · Event 2025-04-29

Apollo’s STACK colo carve-out is an agreed Nordic-city sale, not a named Stockholm hall

On 29 April 2025 Apollo said funds it manages had agreed to buy STACK Infrastructure’s European colocation business from Blue Owl Digital Infrastructure. The company is described as seven assets in Stockholm, Oslo, Copenhagen, Milan and Geneva. An agreed carve-out is not a closed transfer and not a megawatt.

Apollo’s 29 April 2025 press release is the dated ownership source used here. It says Apollo-managed infrastructure funds have agreed to acquire the European colocation business developed and managed by STACK Infrastructure, a portfolio company of Blue Owl Digital Infrastructure Advisors, in a carve-out. An agreement to acquire is not a closed transfer.

The city list must stay a city list. The company comprises seven data-centre assets in Stockholm, Oslo, Copenhagen, Milan and Geneva, described as serving enterprise, carrier, IT and financial clients. The paper does not name a Stockholm building, a site code or a megawatt. This article does not attach those missing names from another file.

The brand sentences must stay brand sentences. The management team and employees then operating the EMEA colocation business inside STACK are expected to move with the company. The company will be re-branded and will no longer use the STACK Infrastructure name or logo. STACK EMEA is described as continuing to focus on hyperscale development and operations. A planned rename is not a commissioned hall and not a capacity change.

Closing conditions stay closing conditions. The transaction is subject to satisfaction of certain closing conditions, including regulatory approvals. Named neighbouring papers stay on their own files. The STACK STO01 row already in this register is a different instrument: this Apollo paper does not identify that site. atNorth’s 2026 ownership notice and other Nordic colo rows stay on their own dates.

DataCenterSweden records 29 April 2025 as an Apollo agreement to buy STACK’s European colocation set. No project identifier is attached. The next update would need a later primary source that names a closed transfer, a new brand, a named Stockholm asset or a megawatt. Until then, the seven-city list stays an agreed carve-out — not an identified Stockholm hall sale.

Why it matters

A Stockholm-in-the-list colo sale is easy to file as a named Swedish hall changing hands. The April paper is usable only if the seven assets stay unnamed buildings and the transfer stays subject to closing.

What remains unknown

The fetched release does not name a Stockholm site code, a megawatt, a closed transfer date or the brand that would replace STACK on the colo assets.

Sources