Kao Data
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Kao Data is a UK-based developer and operator of high-performance data centres purpose-built for AI, HPC, and other advanced computing workloads, selling colocation space rather than reselling someone else’s capacity. As of 2026 the company runs an operational campus in Harlow, Essex plus facilities in Slough and Northolt to the west and east of London, and is building its first site outside the south of England in Stockport, Greater Manchester. Kao Data differentiates itself through NVIDIA DGX-Ready and OCP-Ready certified data halls, SLA-backed PUE figures around 1.2–1.25, 100% renewable power, and HVO biofuel backup generators, and it hosts high-profile AI infrastructure such as Nvidia’s Cambridge-1 supercomputer at Harlow. Founded in 2014 and named after fibre-optic pioneer Sir Charles Kao, whose foundational discovery took place on the Harlow site, the company has grown from a single campus into a multi-site UK platform backed by investors including Legal & General, Goldacre, and Infratil.
Kao Data has a confirmed data center presence at the following locations:
FACILITY OPERATOR
Phone: 01279 937400 Email: [email protected]
Kao Data Data Center Locations
- Northolt, UK Kao Data Northolt CARRIER-NEUTRAL · 01279 937400 PENDING REVIEW
The Northolt site occupies a former Barclays data centre inside the M25, close to Heathrow Airport, giving Kao Data an established building rather than new-build construction for this location. - Stockport, UK Kao Data KMAN-01 (Kenwood Point)AI DATA CENTER · 01279 937400 PENDING REVIEW
This is Kao Data's first facility outside southern England, redeveloping a former 160,100 sq ft industrial warehouse in Reddish into what is billed as the north of England's largest data centre. - Harlow, UK Kao Data Harlow CampusAI DATA CENTER CARRIER-NEUTRAL · 01279 937400 PENDING REVIEW
The Harlow campus hosts Nvidia's Cambridge-1 supercomputer, which was described as the UK's most powerful supercomputer of its kind at deployment. - Slough, UK Kao Data KLON-06AI DATA CENTER TIER III (EQUIVALENT) CARRIER-NEUTRAL · 01279 937400 PENDING REVIEW
This site, launched in 2022 following a £130 million investment from Infratil, was Kao Data's third facility and expanded its footprint into Slough, often cited as the UK's largest data centre hub.
By Continent
AI Data Centers
Kao Data positions its entire portfolio around AI and advanced computing, with data halls certified as NVIDIA DGX-Ready and OCP-Ready across its Harlow, Slough, and Northolt sites. The clearest evidence of AI-optimized infrastructure is at Harlow, home to Nvidia's Cambridge-1 supercomputer, described at launch as the UK's most powerful AI system. Its newest site under construction in Stockport is also being built explicitly as a hub for high-performance computing and AI, with capacity for thousands of racks powered entirely by renewable energy.
- Harlow, UK Kao Data Harlow Campus AI DATA CENTER CARRIER-NEUTRALPENDING REVIEW
The Harlow campus hosts Nvidia's Cambridge-1 supercomputer, which was described as the UK's most powerful supercomputer of its kind at deployment. - Slough, UK Kao Data KLON-06 AI DATA CENTER TIER III (EQUIVALENT) CARRIER-NEUTRALPENDING REVIEW
This site, launched in 2022 following a £130 million investment from Infratil, was Kao Data's third facility and expanded its footprint into Slough, often cited as the UK's largest data centre hub. - Stockport, UK Kao Data KMAN-01 (Kenwood Point) AI DATA CENTER PENDING REVIEW
This is Kao Data's first facility outside southern England, redeveloping a former 160,100 sq ft industrial warehouse in Reddish into what is billed as the north of England's largest data centre.
Common Questions
Does Kao Data have facilities designed specifically for AI and GPU workloads?
Yes. Kao Data markets its data centres as NVIDIA DGX-Ready and OCP-Ready, and its Harlow campus hosts Nvidia's Cambridge-1 supercomputer, which was described as the UK's most powerful AI supercomputer at the time of its deployment.
Where does Kao Data operate physical data centres?
As of 2026, Kao Data's operational UK sites are in Harlow (Essex), Slough (West London), and Northolt (West London), with a new facility under construction in Stockport, Greater Manchester (its first outside southern England).
Is Kao Data a colocation or cloud company?
Kao Data sells colocation — physical rack, suite, and wholesale hall space that customers fill with their own hardware — rather than selling cloud compute as a service itself.
How big is Kao Data's Stockport data centre expected to be?
The Kenwood Point facility in Reddish, Stockport is a planned 40MW, roughly £350 million data centre described as the largest and most sustainable in the north of England, with construction underway and an operational target of 2026.
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