Virtus Data Centres
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VIRTUS Data Centres is a UK-founded colocation operator that sells rack, suite, and wholesale data hall space to enterprises, hyperscalers, and government customers rather than offering compute or storage-as-a-service itself. As of 2026, its established, operating footprint is concentrated around London — with campuses at Stockley Park, Slough Trading Estate, Enfield and Hayes totalling well over 300MW of IT load — and it is now expanding into continental Europe with campuses under construction near Berlin (Marienpark and the giant Wustermark megacampus) and outside Milan. Founded in 2008 and majority owned by ST Telemedia Global Data Centres (with Macquarie Asset Management holding a stake taken in 2023), VIRTUS is a pure-play owner-operator: it designs, builds, and runs its own facilities rather than leasing wholesale space from a third party. Its newer European projects — particularly Wustermark and the newest Berlin and Milan buildings — are explicitly engineered for AI and HPC workloads with direct-to-chip liquid cooling and ultra-low PUE targets, marking a deliberate pivot from a purely enterprise/retail colocation business toward large-scale, AI-ready hyperscale capacity.
Virtus Data Centres has a confirmed data center presence at the following locations:
FACILITY OPERATOR
Virtus Data Centres Data Center Locations
- Berlin, Berlin, Germany Marienpark Campus (BERLIN1–4)AI DATA CENTER PENDING REVIEW
Berlin's Mayor Franziska Giffey publicly described the Marienpark development as becoming an innovative digital backbone for cloud, AI, and high-performance computing applications in the city. - Wustermark, Brandenburg, Germany Wustermark Megacampus (BERLIN5, BERLIN6 and beyond)AI DATA CENTER TIER III+ PENDING REVIEW
VIRTUS has installed two 185MVA super-grid transformers here, among the largest ever deployed at a European data centre, making Wustermark the first VIRTUS campus to connect directly at 380kV. - Cornaredo, Italy MILAN1AI DATA CENTER TIER III CARRIER-NEUTRAL PENDING REVIEW
MILAN1 is VIRTUS's first facility in Italy, developed on a 71,000 sqm brownfield site west of Milan and marking the company's entry into a third European country. - Slough, UK Slough Trading Estate Campus (LONDON3, 4, 9, 10) TIER III CARRIER-NEUTRAL PENDING REVIEW
This campus sits within the Slough Trading Estate, one of the largest and most established data centre clusters in the world, and VIRTUS has continued to add buildings there, including a 32.5MW facility branded London19. - Saunderton, UK Saunderton Campus (planned) PENDING REVIEW
Announced as a new UK campus at full build-out featuring four data centre buildings, extending VIRTUS's footprint beyond the Greater London area for the first time. - Enfield, UK LONDON1 (Enfield Campus) TIER III CARRIER-NEUTRAL PENDING REVIEW
Enfield is one of VIRTUS's earliest and most established London campuses, positioned in North London roughly 11 miles from the city centre. - Hayes, UK LONDON2 (Hayes Campus) TIER III CARRIER-NEUTRAL PENDING REVIEW
Opened in 2014 as a 65,000 sq ft flagship facility, London2 was among the first in London to deploy indirect fresh-air evaporative cooling and became one of only three data centres in London to earn Uptime Institute Tier III certification at the time. - West Drayton, UK Stockley Park Campus (LONDON5, 6, 7, 8) TIER III CARRIER-NEUTRAL PENDING REVIEW
Independent industry analysis describes Stockley Park as a wholesale-focused, hyperscale campus where each of its four large buildings is typically leased to a single occupier under long-term contract, with only limited retail colocation space available.
By Continent
AI Data Centers
VIRTUS's newest European campuses are being purpose-built for AI and high-performance computing rather than retrofitted. The Wustermark megacampus outside Berlin — a planned €3 billion, roughly 300MW project comprising nine buildings — will use closed-loop chilled water and direct-to-chip liquid cooling for GPU-dense racks, and connects at 380kV via newly installed super-grid transformers. Nearby, Berlin 5 and Berlin 6 at the Marienpark and Wustermark sites are likewise designed with high-density, liquid-cooled halls and sub-1.2 PUE targets, while VIRTUS's planned Milan 1 facility near Cornaredo is also explicitly described as designed for AI workloads and high-density computing.
- Berlin, Germany Marienpark Campus (BERLIN1–4) AI DATA CENTER PENDING REVIEW
Berlin's Mayor Franziska Giffey publicly described the Marienpark development as becoming an innovative digital backbone for cloud, AI, and high-performance computing applications in the city. - Wustermark, Germany Wustermark Megacampus (BERLIN5, BERLIN6 and beyond) AI DATA CENTER TIER III+PENDING REVIEW
VIRTUS has installed two 185MVA super-grid transformers here, among the largest ever deployed at a European data centre, making Wustermark the first VIRTUS campus to connect directly at 380kV. - Cornaredo, Italy MILAN1 AI DATA CENTER TIER III CARRIER-NEUTRALPENDING REVIEW
MILAN1 is VIRTUS's first facility in Italy, developed on a 71,000 sqm brownfield site west of Milan and marking the company's entry into a third European country.
Common Questions
Does VIRTUS have data centres built specifically for AI workloads?
Yes — its newest German and Italian developments are explicitly AI-ready. The Wustermark megacampus near Berlin and Berlin 5/6 at Marienpark are designed with direct-to-chip and closed-loop liquid cooling for high-density GPU/HPC racks, targeting a PUE below 1.2, while the planned Milan (Cornaredo) facility is also described as built to support AI workloads and hyperscale, high-density computing.
Where does VIRTUS Data Centres actually operate today?
Its operating facilities are all in and around London — Stockley Park, Slough Trading Estate, Enfield, and Hayes — while campuses in Berlin/Brandenburg (Germany) and near Milan (Italy) are under development as of 2026, alongside a planned campus in Saunderton, Buckinghamshire.
Who owns VIRTUS Data Centres?
VIRTUS is a subsidiary of ST Telemedia Global Data Centres (STT GDC), which took a 49% stake in 2015 and full ownership in 2017; Macquarie Asset Management acquired a 40% stake in the UK operator in 2023 to help fund European expansion.
Is VIRTUS a cloud provider or a colocation company?
VIRTUS is a colocation owner-operator — customers rent rack, suite, or wholesale hall space and bring their own hardware, rather than buying cloud compute or storage directly from VIRTUS.
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