DayOne Data Centers
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DayOne Data Centers is a Singapore-headquartered developer and operator of large-scale, hyperscale-focused data centers across Asia-Pacific and, more recently, Europe. Spun out in 2022 as the international arm of Chinese operator GDS Holdings and launched as an independent company on January 1, 2025 following a Series B raise, DayOne now runs or is building data center campuses in Singapore, Malaysia (Johor), Indonesia (Batam), Thailand (Chonburi/Greater Bangkok), Hong Kong, Japan (Tokyo), Finland (Lahti and Kouvola), and Spain (Aragon). As of mid-2026 the company describes a portfolio of roughly 480MW in service or under construction with hundreds of additional megawatts held for future development, and it closed a $4.5 billion Series C round to fund further global expansion. DayOne’s defining strategy is its “hub-and-spoke” SIJORI model — linking Singapore, Johor, and the Riau Islands (Batam) into an integrated cross-border digital infrastructure corridor — and it has replicated this cluster approach in Hong Kong’s Kwai Chung district and Thailand’s Chonburi Tech Park. Its facilities primarily serve hyperscale cloud providers and large enterprises rather than smaller colocation buyers, and several of its newest developments (Singapore’s SG1, Batam’s Nongsa campus, Thailand’s CTP, and Spain’s planned Aragon site) are explicitly positioned around AI and high-performance computing workloads with liquid cooling and high-density GPU support.
DayOne Data Centers has a confirmed data center presence at the following locations:
FACILITY OPERATOR
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DayOne Data Centers Data Center Locations
- Kouvola, Finland Kouvola Data Center (with Hyperco) PENDING REVIEW
This facility is being developed in partnership with Hyperco and is reported to be intended to serve ByteDance/TikTok as a tenant. - Lahti, Finland Lahti Campus (Kiveriö) PENDING REVIEW
The campus will be built on a 98,901-square-meter former industrial site in the Kiveriö district and includes a EUR 2.5 million education partnership commitment to LUT Universities. - Kwai Chung, Hong Kong HK1 (2-16 Lam Tin Street) CARRIER-NEUTRAL PENDING REVIEW
At 22 stories, HK1 has been highlighted as one of Asia's tallest purpose-built data centers. - Kwai Chung, Hong Kong HK2 (Milos Industrial Building, 2-10 Tai Yuan Street) CARRIER-NEUTRAL PENDING REVIEW
- Batam, Indonesia Nongsa Digital Park Campus PENDING REVIEW
This campus is being financed by a record IDR 6.7 trillion ($412 million) loan from DBS and UOB, described as the largest rupiah-denominated financing ever secured for a data center project. - Fuchu, Japan Fuchu City Campus PENDING REVIEW
This campus is expected to deliver one of the largest single IT capacity deployments in Tokyo, with an 80MW plan across two buildings. - Johor Bahru, Malaysia Nusajaya Tech Park Campus PENDING REVIEW
Multiple buildings at this campus (NTP1 through at least NTP12) hold LEED Gold or LEED Platinum certification. - Johor Bahru, Malaysia Kempas Tech Park Campus PENDING REVIEW
Per DayOne Data Centers's own site: DayOne states its Johor campuses, including Kempas Tech Park, deliver ultra-low latency, renewable energy integration, and robust connectivity. - Escatrón, Spain Aragon Campus (Escatrón) PENDING REVIEW
This planned 300MW, over-€3 billion project is intended to become one of the largest AI campuses in Southern Europe, developed by renewable energy firm Ignis on around 900 hectares. - Chonburi region, Thailand Chonburi Tech Park (CTP1) PENDING REVIEW
The project was approved as a 28-billion-baht ($831 million) development expected to become the largest data center in Thailand.
By Continent
Common Questions
Does DayOne have data centers built specifically for AI/GPU workloads?
Yes. DayOne's SG1 facility at 21 Jalan Buroh in Singapore is described by the company and Singapore's EDB as featuring green-powered, high-density air-cooled GPU support with hybrid air and liquid cooling, and its Batam (Nongsa Digital Park) campus is marketed as designed for AI and cloud application customers. Its planned Chonburi Tech Park campus in Thailand also incorporates liquid cooling for AI and high-performance computing workloads, and its planned Aragon, Spain campus is explicitly designed for high-density AI and HPC hosting.
Where is DayOne headquartered and where did it come from?
DayOne is headquartered in Singapore. It was formed in 2022 as GDS International to manage the data center assets of Chinese operator GDS Holdings outside mainland China, then rebranded and launched as an independent company on January 1, 2025 after completing a Series B funding round.
What is DayOne's largest facility or project?
DayOne's Chonburi Tech Park campus southeast of Bangkok, Thailand is one of its largest developments, planned to scale toward roughly 1GW of capacity across two sites, with an initial 180MW-300MW phase backed by a committed investment of about $1 billion.
Is DayOne active in Europe?
Yes, DayOne entered Europe in 2025 with a €1.2 billion hyperscale campus in Lahti, Finland, a joint investment in Hyperco's Kouvola, Finland data center (reportedly serving ByteDance/TikTok), and in 2026 announced plans for a 300MW AI-focused campus in Escatrón, Aragon, Spain.
Does DayOne Data Centers offer colocation services?
Yes — we've identified 10 facilities where DayOne Data Centers may offer colocation services. Please contact DayOne Data Centers directly to confirm current availability and terms.
Does DayOne Data Centers offer cloud services?
We haven't confirmed cloud services for DayOne Data Centers yet — this isn't a definitive no, since our research can miss things. Please contact DayOne Data Centers directly to confirm cloud availability.
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