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Cartis diligence evidence schedule

STACK STO01 Upplands Väsby Data Center Campus

PRJ-0931 · Site · Upplands Väsby, Stockholm County, Sweden

Record last updated Oct 28, 2026

Scope and capacity

STO01 in Upplands Väsby is now operated by Vaultica after the Apollo-backed STACK colocation carve-out. Vaultica currently reports 12 MW and 5,600 square metres; the legacy STACK record reported 18 MW. Customer utilization, private contract terms and unreported project financing remain outside the verified public record.

Headline: 18 MW Planned critical IT

Numbers refer to their stated physical boundaries and are not added together. Source dates, claim dates and record updates have different meanings. Missing dates and locators are not inferred.

Claims and exhibit sources

Jump to a claim (16)

Location context · STACK STO01 | Upplands Väsby | Stockholm County | SE

Actual · STACK STO01 Upplands Väsby Data Center Campus (Project)

Claim 64971 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. STACK Infrastructure STACK STO01 profile

    STACK Infrastructure · Document date: Aug 28, 2026 · Primary

    Source reference: SRC-3663 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.stackinfra.com/locations/emea/stockholm/sto01/

Lifecycle status · Partially operational

Actual · STACK STO01 Upplands Väsby Data Center Campus (Project)

Claim 64972 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. STACK Infrastructure STACK STO01 profile

    STACK Infrastructure · Document date: Aug 28, 2026 · Primary

    Source reference: SRC-3663 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.stackinfra.com/locations/emea/stockholm/sto01/

Reported capacity · 18 MW

Design · STACK STO01 Upplands Väsby Data Center Campus (Project)

Claim 64973 · Recorded claim type: Design · Review: Approved · Claim date: Not stated

Headline treatment: Selected headline

  1. STACK Infrastructure STACK STO01 profile

    STACK Infrastructure · Document date: Aug 28, 2026 · Primary

    Source reference: SRC-3663 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.stackinfra.com/locations/emea/stockholm/sto01/

Capacity basis · STACK Infrastructure publishes 18 MW of critical IT capacity for this record boundary.

Actual · STACK STO01 Upplands Väsby Data Center Campus (Project)

Claim 64974 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. STACK Infrastructure STACK STO01 profile

    STACK Infrastructure · Document date: Aug 28, 2026 · Primary

    Source reference: SRC-3663 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.stackinfra.com/locations/emea/stockholm/sto01/

Location context · STACK STO01 | Upplands Väsby | Stockholm County | SE

Actual · STACK STO01 Upplands Väsby Data Center Campus (Project)

Claim 88805 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. STACK Infrastructure STACK STO01 profile

    STACK Infrastructure · Document date: Aug 28, 2026 · Primary

    Source reference: SRC-3663 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.stackinfra.com/locations/emea/stockholm/sto01/

Lifecycle status · Partially operational

Actual · STACK STO01 Upplands Väsby Data Center Campus (Project)

Claim 88806 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. STACK Infrastructure STACK STO01 profile

    STACK Infrastructure · Document date: Aug 28, 2026 · Primary

    Source reference: SRC-3663 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.stackinfra.com/locations/emea/stockholm/sto01/

Reported capacity · 12 MW

Design · STACK STO01 Upplands Väsby Data Center Campus (Project)

Claim 88807 · Recorded claim type: Design · Review: Approved · Claim date: Not stated

Headline treatment: Separate claim, not added to the headline

  1. STACK Infrastructure STACK STO01 profile

    STACK Infrastructure · Document date: Aug 28, 2026 · Primary

    Source reference: SRC-3663 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.stackinfra.com/locations/emea/stockholm/sto01/

Capacity basis · Vaultica currently reports 12 MW for STO01; the legacy STACK profile reported an 18 MW building boundary. Cartis uses the current operator figure and preserves the historical 18 MW as superseded context.

Actual · STACK STO01 Upplands Väsby Data Center Campus (Project)

Claim 88808 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. STACK Infrastructure STACK STO01 profile

    STACK Infrastructure · Document date: Aug 28, 2026 · Primary

    Source reference: SRC-3663 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.stackinfra.com/locations/emea/stockholm/sto01/

Operator or developer · STACK Infrastructure

Actual · STACK STO01 Upplands Väsby Data Center Campus (Project)

Claim 88809 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. STACK Infrastructure STACK STO01 profile

    STACK Infrastructure · Document date: Aug 28, 2026 · Primary

    Source reference: SRC-3663 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.stackinfra.com/locations/emea/stockholm/sto01/

Project location · Upplands Väsby, Stockholm County, SE

Actual · STACK STO01 Upplands Väsby Data Center Campus (Project)

Claim 88810 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. STACK Infrastructure STACK STO01 profile

    STACK Infrastructure · Document date: Aug 28, 2026 · Primary

    Source reference: SRC-3663 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.stackinfra.com/locations/emea/stockholm/sto01/

Current lifecycle · Operating or in phased operation

Actual · STACK STO01 Upplands Väsby Data Center Campus (Project)

Claim 88811 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. STACK Infrastructure STACK STO01 profile

    STACK Infrastructure · Document date: Aug 28, 2026 · Primary

    Source reference: SRC-3663 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.stackinfra.com/locations/emea/stockholm/sto01/

Capacity classification · It load

Actual · STACK STO01 Upplands Väsby Data Center Campus (Project)

Claim 88812 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. STACK Infrastructure STACK STO01 profile

    STACK Infrastructure · Document date: Aug 28, 2026 · Primary

    Source reference: SRC-3663 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.stackinfra.com/locations/emea/stockholm/sto01/

Capacity basis · Vaultica currently reports 12 MW for STO01; the legacy STACK profile reported an 18 MW building boundary. Cartis uses the current operator figure and preserves the historical 18 MW as superseded context.

Actual · STACK STO01 Upplands Väsby Data Center Campus (Project)

Claim 88813 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. STACK Infrastructure STACK STO01 profile

    STACK Infrastructure · Document date: Aug 28, 2026 · Primary

    Source reference: SRC-3663 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.stackinfra.com/locations/emea/stockholm/sto01/

Customer utilization · Not publicly disclosed

Actual · STACK STO01 Upplands Väsby Data Center Campus (Project)

Claim 88815 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. STACK Infrastructure STACK STO01 profile

    STACK Infrastructure · Document date: Aug 28, 2026 · Primary

    Source reference: SRC-3663 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.stackinfra.com/locations/emea/stockholm/sto01/

Source refresh date · 2026-08-29

Actual · STACK STO01 Upplands Väsby Data Center Campus (Project)

Claim 88817 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. STACK Infrastructure STACK STO01 profile

    STACK Infrastructure · Document date: Aug 28, 2026 · Primary

    Source reference: SRC-3663 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.stackinfra.com/locations/emea/stockholm/sto01/

White space · 5,600 square metres

Actual · STACK STO01 Upplands Väsby Data Center Campus (Project)

Claim 88820 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. Vaultica Sweden / STO01 current operator profile

    Vaultica Data Centers · Document date: Aug 29, 2026 · Primary

    Source reference: SRC-4909 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.vaultica.com/sweden/

Counterparties and capital

STACK Infrastructure · Developer, Operator · CMP-0102

This schedule captures public Cartis research. It is not a title, lien or legal-opinion report. Document page/section locators and claim review timestamps are included only when published; this version has no separate locator or claim-review-time feed.