Colt Data Centre Services
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Colt Data Centre Services (Colt DCS) designs, builds, and operates large-scale hyperscale and colocation data centres for hyperscale cloud providers, financial institutions, and large enterprises across Europe, India, and Asia-Pacific. As of 2025-2026 it describes a portfolio of roughly 15 operational data centres with about 12 more in development, spread across cities in the UK, France, Germany, Netherlands, India, and Japan, alongside a set of long-standing carrier-neutral facilities in cities such as Milan, Brussels, Copenhagen, Hong Kong, and Singapore. Spun out from Colt Technology Services (founded 1992) as a distinct business line in 2015 and later backed by Fidelity Investments, Colt DCS shifted its strategy in the early 2020s away from smaller retail colocation toward large hyperscale campuses, notably selling a dozen European colocation sites to AtlasEdge Data Centres in 2021 and pivoting to develop 100MW+ facilities in markets like Frankfurt, London, Paris, Osaka, and Mumbai.
Its most distinctive current push is into AI-ready infrastructure: new campuses under construction in London, Paris, Frankfurt, Mumbai, Chennai, Tokyo, and Yoshikawa are being built with hybrid air/direct-to-chip liquid cooling and rack densities designed for GPU-dense deployments, and Colt states all its new hyperscale builds are now ‘AI-ready.’
Colt Data Centre Services has a confirmed data center presence at the following locations:
FACILITY OPERATOR
Colt Data Centre Services Data Center Locations
- Brussels, Belgium Colt Brussels Data Centre CARRIER-NEUTRAL PENDING REVIEW
- Copenhagen, Denmark Colt Copenhagen Data Centre CARRIER-NEUTRAL PENDING REVIEW
- Paris, France Colt Paris North / Paris South West Data CentreAI DATA CENTER CARRIER-NEUTRAL PENDING REVIEW
Colt's Paris South West data centre sits roughly 12km southwest of central Paris near Les Ulis, where the company is also planning a two-building campus. - Berlin, Berlin, Germany Colt Berlin Data CentreAI DATA CENTER CARRIER-NEUTRAL PENDING REVIEW
New Berlin 1 & 2 facilities are planned on a 9.5-acre site about 10km east of the capital, adding a combined 54MW of IT capacity. - Hamburg, Hamburg, Germany Colt Hamburg Data Centre CARRIER-NEUTRAL PENDING REVIEW
- Frankfurt, Hesse, Germany Colt Frankfurt City Data CentreAI DATA CENTER CARRIER-NEUTRAL PENDING REVIEW
Colt's Frankfurt City site is located in the city centre, a location the company and independent trackers describe as a prime data-centre location, with new Frankfurt 4 & 5 builds planned in nearby Wiesbaden. - Hong Kong, Hong Kong Colt Hong Kong Data Centre CARRIER-NEUTRAL PENDING REVIEW
The Colt Hong Kong Data Centre in the Tseung Kwan O Industrial Estate offers true 2N power redundancy with dual power feeds via separate infrastructure paths to the racks. - Navi Mumbai, Maharashtra, India Colt Mumbai 1 & 2 Data CentresAI DATA CENTER TIER III CARRIER-NEUTRAL PENDING REVIEW
This is Colt's largest data centre worldwide, a 134MW, 62,490m2 campus that was Colt's first project in India, achieved a Platinum rating from the India Green Building Council, and was developed on 15 acres to Tier 3 standards. - Chennai, Tamil Nadu, India Colt Chennai Data Centre (Ambattur)AI DATA CENTER PENDING REVIEW
This planned Chennai facility, on land acquired in the Ambattur area, is expected to deliver 96MW of IT power upon completion as part of Colt's $1.7bn joint venture with RMZ. - Milan, Italy Colt Milan Data Centre CARRIER-NEUTRAL PENDING REVIEW
- Turin, Italy Colt Torino Data Centre PENDING REVIEW
- Osaka, Japan Colt Osaka / Minoh Campus Data CentreAI DATA CENTER PENDING REVIEW
Colt formed a joint venture with real estate firm ESR to develop the first phase of a 130MW hyperscale site on its Minoh Campus in Osaka, with the initial 65MW phase designed and built by the JV and operated by Colt. - Tokyo, Japan Colt Tokyo Otemachi / Shiohama / Inzai Data CentresAI DATA CENTER CARRIER-NEUTRAL PENDING REVIEW
Colt's Tokyo Otemachi data centre is located inside the Otemachi Financial City South Tower in Chiyoda, placing it directly in Tokyo's financial district, while its Inzai campus (Inzai One, Two, and a newer Inzai 4 building) sits outside the city and is described as already 100% pre-let. - Amsterdam, Netherlands Colt Amsterdam South East Data Centre CARRIER-NEUTRAL PENDING REVIEW
- Rotterdam, Netherlands Colt Rotterdam Data Centre CARRIER-NEUTRAL PENDING REVIEW
- Singapore, Singapore Colt Singapore Data Centre CARRIER-NEUTRAL PENDING REVIEW
- London, UK Colt London (Hillingdon / Welwyn Garden City)AI DATA CENTER CARRIER-NEUTRAL PENDING REVIEW
One London-area Colt site is a 31MW hyperscale facility built across five floors in the West London borough of Hillingdon, while another legacy carrier-neutral site sits in Welwyn Garden City, about 35 minutes by train from King's Cross.
By Continent
AI Data Centers
Colt DCS says every one of its new hyperscale data centres now under development is being built AI-ready, with hybrid air and direct-to-chip liquid cooling designed for GPU-dense racks. The company has named specific AI-focused build-outs in London, Paris, Frankfurt, Berlin, Mumbai, Chennai, Osaka, Tokyo, and Yoshikawa, with new German sites (Frankfurt 4 & 5, Berlin 1 & 2) supporting densities up to 130kW per rack and reusing waste heat for district heating. Its Navi Mumbai campus, the largest in its portfolio at 134MW, is also marketed around supporting generative AI and machine learning workloads that need high power density and efficient cooling.
- London, UK Colt London (Hillingdon / Welwyn Garden City) AI DATA CENTER CARRIER-NEUTRALPENDING REVIEW
One London-area Colt site is a 31MW hyperscale facility built across five floors in the West London borough of Hillingdon, while another legacy carrier-neutral site sits in Welwyn Garden City, about 35 minutes by train from King's Cross. - Paris, France Colt Paris North / Paris South West Data Centre AI DATA CENTER CARRIER-NEUTRALPENDING REVIEW
Colt's Paris South West data centre sits roughly 12km southwest of central Paris near Les Ulis, where the company is also planning a two-building campus. - Frankfurt, Germany Colt Frankfurt City Data Centre AI DATA CENTER CARRIER-NEUTRALPENDING REVIEW
Colt's Frankfurt City site is located in the city centre, a location the company and independent trackers describe as a prime data-centre location, with new Frankfurt 4 & 5 builds planned in nearby Wiesbaden. - Berlin, Germany Colt Berlin Data Centre AI DATA CENTER CARRIER-NEUTRALPENDING REVIEW
New Berlin 1 & 2 facilities are planned on a 9.5-acre site about 10km east of the capital, adding a combined 54MW of IT capacity. - Navi Mumbai, India Colt Mumbai 1 & 2 Data Centres AI DATA CENTER TIER III CARRIER-NEUTRALPENDING REVIEW
This is Colt's largest data centre worldwide, a 134MW, 62,490m2 campus that was Colt's first project in India, achieved a Platinum rating from the India Green Building Council, and was developed on 15 acres to Tier 3 standards. - Chennai, India Colt Chennai Data Centre (Ambattur) AI DATA CENTER PENDING REVIEW
This planned Chennai facility, on land acquired in the Ambattur area, is expected to deliver 96MW of IT power upon completion as part of Colt's $1.7bn joint venture with RMZ. - Tokyo, Japan Colt Tokyo Otemachi / Shiohama / Inzai Data Centres AI DATA CENTER CARRIER-NEUTRALPENDING REVIEW
Colt's Tokyo Otemachi data centre is located inside the Otemachi Financial City South Tower in Chiyoda, placing it directly in Tokyo's financial district, while its Inzai campus (Inzai One, Two, and a newer Inzai 4 building) sits outside the city and is described as already 100% pre-let. - Osaka, Japan Colt Osaka / Minoh Campus Data Centre AI DATA CENTER PENDING REVIEW
Colt formed a joint venture with real estate firm ESR to develop the first phase of a 130MW hyperscale site on its Minoh Campus in Osaka, with the initial 65MW phase designed and built by the JV and operated by Colt.
Common Questions
Does Colt DCS have data centres built specifically for AI/GPU workloads?
Colt DCS states that all of its new hyperscale data centres in development are now AI-ready, using hybrid air and direct-to-chip liquid cooling to support GPU-dense server racks. New builds explicitly cited for this in 2025-2026 announcements include sites in London, Paris, Frankfurt, Berlin, Mumbai, Chennai, Osaka, and Tokyo, with new German facilities offering rack densities of up to 130kW.
Where is Colt DCS's largest data centre?
Colt's largest facility in its portfolio is in Navi Mumbai, India, which the company describes as a 134MW data centre spanning roughly 62,490 square metres, developed as part of a joint venture with Indian real estate firm RMZ.
Did Colt DCS sell off its European colocation data centres?
In November 2021, Colt DCS sold a group of 12 colocation facilities across Amsterdam, Barcelona, Berlin, Brussels, Copenhagen, Hamburg, London, Madrid, Milan, Paris, and Zürich to AtlasEdge Data Centres, after which Colt DCS realigned toward the hyperscale and large-enterprise segment; notably, several of these same cities (e.g. Berlin, Frankfurt, Brussels, Amsterdam) still appear in Colt's current published facility lists, a discrepancy this research could not fully resolve.
In which countries does Colt DCS currently operate data centres?
Based on its own site materials and independent trackers, Colt DCS operates or is developing facilities in the United Kingdom, France, Germany, the Netherlands, Belgium, Denmark, Italy, India, Japan, Hong Kong, and Singapore, with its core current hyperscale growth concentrated in the UK, France, Germany, Netherlands, India, and Japan.
Does Colt Data Centre Services offer cloud services?
We haven't confirmed cloud services for Colt Data Centre Services yet — this isn't a definitive no, since our research can miss things. Please contact Colt Data Centre Services directly to confirm cloud availability.
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