DayOne Data Centers HK Limited

DayOne Data Centers HK Limited builds and operates hyperscale data centres, providing digital infrastructure to cloud and technology customers across Asia-Pacific and Europe. The company's portfolio spans seven markets: Singapore, Johor, Batam, Greater Bangkok, Hong Kong, Tokyo and Finland, with its headquarters in Singapore.

Its product offering centres on future-ready hyperscale facilities designed for rapid site activation, low-latency connectivity, modular expansion and operational resilience. A distinctive element is the SIJORI hub-and-spoke model, an interconnected cluster integrating Singapore, Johor in Malaysia and Batam in Indonesia into a single regional network, intended to improve customer access and operational efficiency.

Technical work covers smart cooling systems, modular data centre expansion, uptime engineering and sustainable infrastructure. Clean and renewable energy pathways are treated as an engineering principle rather than an afterthought, alongside a stated focus on measurable impact and operational efficiency.

The company is engineering-driven in orientation, with emphasis on performance, resilience and speed of delivery. Further details on founding date, team size and funding are not published.