Startups > DayOne

DayOne

DayOne builds hyperscale data centers for cloud and AI workloads globally.

Series C $3.9B total Founded 2022 Singapore, Central Region 801 employees

DayOne develops hyperscale data center infrastructure optimized for cloud, AI, and edge computing workloads. The company offers modular build systems, advanced liquid cooling, and infrastructure management tools designed for rapid deployment and operational resilience. DayOne serves US and Chinese hyperscalers with a focus on sustainability, strategic new markets, and fast time-to-deployment. The company has secured approximately 1GW of customer commitments and operates as a next-generation colocation platform with greenfield developments across Asia-Pacific and Europe.

Problem solved

Hyperscalers need data center infrastructure that deploys faster, scales efficiently, supports high-density computing, and provides access to strategic new markets with sustainable power solutions.

Target customer

US and Chinese hyperscalers, enterprise cloud providers, AI infrastructure operators seeking rapid deployment and sustainability-focused data center capacity

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Founders

William Huang

Chairman and Founder

First-generation entrepreneur with IT and digital infrastructure background; founded DayOne and oversaw expansion into new markets globally.

Jamie Khoo

Chief Executive Officer

20+ years in finance, systems, and investment leadership; part of ST Telemedia's data center team since 2002 and involved in early Equinix investment; joined DayOne as CEO in March 2024.

Funding history

Series A & B $1.9B 2024 Led by SoftBank Vision Fund, Coatue Management · Kenneth Griffin (Citadel), Baupost Group

Mezzanine Debt €1B 2025 Led by Brookfield, Sovereign Investor

Series C $2.0B January 5, 2026 Led by Coatue · Indonesia Investment Authority (INA)

Total raised: $3.9B

Industries

Information Services Information Services Information Technology IT Infrastructure

Notable customers

Not disclosed (US and Chinese hyperscalers and enterprise clients served; ~1GW of secured customer commitments)

Tech stack

React (JavaScript frameworks) Next.js (Web servers) dc.js (JavaScripty graphics) Webpack Google Analytics (Analytics) Nginx (Reverse proxies) Microsoft 365 (Email) Cloudflare (CDN) DoubleClick Floodlight (Advertising) Google Tag Manager (Tag managers)

Website

dayonedc.com/

Competitors

AirTrunk

Regional Asia-Pacific colocation provider; less aggressive on sustainability and modular deployment innovation.

Nscale

Hyperscale data center operator with different geographic focus and technical approach to cooling and modularity.

AdaniConneX

Indian-focused data center platform with less emphasis on liquid cooling and greenfield European expansion.

Why this matters: DayOne represents a new wave of hyperscale data center infrastructure optimized for AI and cloud computing, having raised $3.9B in record time (largest recent raise in the data center sector). The company's modular approach, sustainability focus, and strategic market positioning—particularly the SIJORI model connecting Singapore, Malaysia, and Indonesia—signal how next-generation infrastructure operators are reshaping deployment speed and market access for hyperscalers.

Best for: Hyperscalers and enterprise cloud providers needing rapid-deployment, sustainable, high-density data center capacity in strategic Asia-Pacific and European markets.

Use cases

Rapid Hyperscale Expansion

Cloud and AI companies deploying infrastructure across new geographies can use DayOne's modular prefabricated systems to reduce build time and speed time-to-revenue. The standardized, modular rack approach enables deployment months faster than traditional greenfield builds.

Sustainability-Focused Infrastructure

Enterprises with carbon reduction mandates can leverage DayOne's advanced liquid cooling and renewable power pathways to meet ESG targets while maintaining high power density. DayOne's infrastructure is engineered specifically for lower energy consumption at scale.

Strategic Market Access

Hyperscalers seeking presence in underserved regions use DayOne's SIJORI model (Singapore-Johor-Batam corridor) and other strategic partnerships to access new markets with government and utility backing. This approach reduces regulatory risk and accelerates local infrastructure deployment.

Alternatives

AirTrunk Choose AirTrunk for established Asia-Pacific presence; choose DayOne for faster deployment and stronger European expansion strategy.

Equinix Choose Equinix for global scale and mature colocation services; choose DayOne for next-generation modular hyperscale builds and sustainability focus.

Digital Realty Choose Digital Realty for diversified global portfolio; choose DayOne for specialized hyperscale-optimized infrastructure and rapid deployment capability.

FAQ

What does DayOne do? +

DayOne develops and operates hyperscale data center infrastructure for cloud, AI, and edge computing workloads. The company provides modular build systems, advanced liquid cooling technologies, and infrastructure management tools designed for rapid deployment, high density, and operational resilience. DayOne serves US and Chinese hyperscalers with approximately 1GW of secured customer commitments.

How much does DayOne cost? +

DayOne's pricing is not publicly available. Typical hyperscale data center pricing is based on power capacity, rack units, and service tiers, but DayOne has not disclosed specific rate structures. Contact their sales team for pricing information.

What are alternatives to DayOne? +

Key alternatives include AirTrunk (established Asia-Pacific colocation), Equinix (global scale and mature services), Digital Realty (diversified global portfolio), and Nscale (hyperscale operator with different geographic focus).

Who uses DayOne? +

DayOne's customers include US and Chinese hyperscalers and enterprise cloud providers. Specific customer names are not publicly disclosed, but the company has secured approximately 1GW of customer commitments, reflecting one of the fastest growth trajectories among next-generation hyperscale platforms.

How does DayOne compare to AirTrunk? +

Both are regional hyperscale operators, but DayOne differentiates through faster modular deployment, advanced liquid cooling technology, sustainability-first design, and aggressive European expansion. DayOne has also secured significantly more capital ($3.9B) and pioneered the SIJORI market access model. AirTrunk has longer operational history in Asia-Pacific.