STACK Infrastructure Pushes Aggressive Data Center Expansion and Sustainability Strategy Into 2025

Global data center developer and operator STACK Infrastructure is providing a growing range of digital infrastructure solutions for hyperscalers, cloud service providers, and enterprise clients. Like almost all of the cutting-edge developers in the industry, Stack is maintaining the focus on scalability, reliability, and sustainability while delivering a full range of solutions, including build-to-suit, colocation, and powered shell facilities, with continued development in key global markets.

Headquartered in the United States, the company has expanded its presence across North America, Europe, and Asia-Pacific, catering to the increasing demand for high-performance computing, artificial intelligence (AI), and cloud-based workloads. The company is known for its commitment to sustainable growth, leveraging green financing initiatives, energy-efficient designs, and renewable power sources to minimize its environmental impact.

Through rapid expansion in technology hubs like Silicon Valley, Northern Virginia, Malaysia, and Loudoun County, the company continues to develop industry benchmarks for innovation and infrastructure resilience. With a customer-centric approach and a robust development pipeline, STACK Infrastructure is shaping the future of digital connectivity and data management in an era of accelerating digital transformation.

Significant Developments Across 23 Major Data Center Markets

Early in 2024, Stack broke ground on the expansion of their existing 100 MW campus in San Jose, servicing the power constrained Silicon Valley. Stack worked with the city of San Jose to add a 60 MW expansion to their SVY01 data center.

While possibly the highest profile of Stack’s developments, due to its location, at that point in time the company had announced significant developments across 23 major data center markets, including:

Stack's 48 MW Santa Clara data center, featuring immediately available shell space powered by an onsite substation with rare, contracted capacity.
Stack's 56 MW Toronto campus, spanning 19 acres, includes an existing 8 MW data center and 48 MW expansion capacity, all supported by committed power.
A 48 MW build-to-suit opportunity in the Dallas/Fort-Worth area, boasting abundant power and connectivity options.
A 200 MW campus in Portland spanning 55 acres with 24 MW of available capacity with committed power and 96 MW of planned expansion.
A 58 MW data center campus in New Albany, OH with immediately available capacity and build-to-suit expansion opportunities.
250 MW in Central Phoenix as a planned five-building data center campus with a dedicated on-site substation.
72 MW of capacity in Osaka, Japan developed across three planned buildings.
A 30 MW data center campus in Stockholm with 18MW under development.

The First Six Weeks of 2025

Even with all of this development going on worldwide, Stack still has its eye in increasing its presence in Northern Virginia's Data Center Alley.

On January 14, 2025, Stack announced that they had secured $900 million in green financing to fully develop its NVA05 campus in Northern Virginia. The 62-acre, 200 MW campus in Manassas exemplifies the critical role Northern Virginia plays as the epicenter of the digital economy.

Strategically located adjacent to existing utility infrastructure, it ensures reliable power access to support seamless campus expansion. Beyond its infrastructure, the development will bolster the local economy through construction and operational job creation, while also contributing to increased tax revenues.

Said Tim Hughes, Chief Development Officer, STACK America:

Completing the financing of this campus not only demonstrates our ability to secure capital but also reinforces our dedication to STACK’s Development Principles. By fully funding this project, we reassure our clients and partners of our ability to deliver digital infrastructure that supports their growth with speed, scale, and certainty.

Stack's Stafford Technology Campus

While a significant announcement, two days later Stack further announced that they would be developing the 1+GW Stafford Technology Campus (STC) in Stafford County, Virginia.

This planned 500-acre data center development will be broken into four sub-campuses and will be home to 19 data centers.

Dominion Energy will be providing committed power from six 300 MW substations.

The necessary infrastructure upgrades that will be required and provided by the development, including water and sewer, are projected to save $58 million - which the Capital Improvement Program for the county was expecting to have to fund.

As a flagship development for Stack, the project is considered an example of the principles that Stack applies to its infrastructure projects, including

Responsible Siting: By including input from local stakeholders, Stack looks to ensure minimal community disruption. Adjoined by a landfill and light industrial development, it is strategically distanced from residential areas, addressing a major area of concern in recent VA data center developments.
Sustainability: The project plans to incorporate a re-claimed water system for permanent industrial cooling, mitigating any impact on Stafford County’s potable water supply. This aligns with STACK’s commitment to 100% clean energy, carbon reduction, and environmental conservation best practices.
Community Integration: By adhering to strict design and height requirements, tree preservation, noise limitations, and traffic controls, the development can ensure minimal environmental and operational impacts throughout the project’s lifecycle.
Local Partnership: The establishment of a community fund to support local development and well-being, the detaiols of which have not yet been announced. The goal is to positive community impact through ongoing stakeholder engagement.

According to Matt VanderZanden, the recently promoted President and past Chief Operating Officer of STACK Americas:

STC reflects STACK’s commitment to setting the standard for responsible data center development while delivering scalable, resilient infrastructure to meet the evolving needs of our clients. By combining strategic site planning with conscientious initiatives, we ensure our projects drive meaningful economic and environmental benefits, fostering long-term partnerships and sustainable growth.

When completely built out the STC project is expected to deliver over $80 million in annual tax revenue tax revenue and the hundreds of full-time jobs necessary to support a large set of data center campuses. Peak employment during the construction phase should exceed 1,000 jobs.

Doubling Down In Data Center Alley

Then on February 11, 2025, Stack announced that they would be increasing their footprint directly in the Loudoun County Ashburn data center cluster with plans for a 144 MW data center campus.

The two-building design, with 72 MW available in each two-story building, will support the company’s focus on sustainability, with advanced cooling capabilities that will in closed loop liquid cooling to support the focus ion supporting AI, HPC, and cloud workloads in a sustainable manner.

Describing this new site plan, which will be constructed in the area most recently designated by the county for data center construction, and which will take advantage of design considerations usually found in dense urban environments, Ty Miller, Chief Commercial Officer, STACK Americas, said:

STACK is committed to delivering critical capacity where our clients need it most, and Loudoun County remains a critical hub for digital infrastructure. STACK’s continued investment in Northern Virginia reinforces our long-term commitment to delivering best-in-class digital infrastructure in the world’s most vital data center market.

Power delivery for Stack's Ashburn campus will be from an on-site substation, and currently the project is designated to eventually use 100% renewable power.

Stack Will Also See You In Malaysia

Not forgetting the rest of the world, on January 14, in a bold move that underscores the growing momentum of Southeast Asia’s digital infrastructure market, STACK Infrastructure announced plans for a 220 MW data center campus in Johor Bahru, Malaysia. The development positions STACK firmly within Asia-Pacific’s fastest-growing data center market and marks a significant milestone in its regional growth strategy.

Strategic Expansion into a Rising Hyperscale Hub

The Johor Bahru campus, situated in the thriving Iskandar Puteri district, spans 10.8 hectares and will deliver over 1 million square feet of data center capacity. This flagship development is set to address surging hyperscale demand, particularly from cloud, AI, and machine learning (ML) workloads. Initial deployment is expected by Q4 2026.

“We are excited to bring STACK’s proven expertise to Malaysia’s rapidly growing data center market,” said Preet Gona, CEO of STACK APAC. “Our Johor Bahru campus strengthens our ability to meet clients’ strategic needs in both established and emerging Tier 1 markets, while fostering economic growth within the local community.”

Power and Connectivity Designed for Hyperscale Growth

The campus will be powered by Malaysia’s national utility, Tenaga Nasional Berhad (TNB), leveraging a robust 275 kV infrastructure. An on-site substation will provide scalable and reliable energy, ensuring operational resilience as demand grows.

The first facility on the campus will be a two-story, 120 MW data center, featuring a multi-level external electrical yard. A second 100 MW facility will follow, with both offering flexible deployment options including shell, build-to-suit, and turnkey solutions. These configurations are tailored for hyperscale clients looking for speed-to-market flexibility in deployment.

Located just 10 minutes from the Malaysia-Singapore border, the campus offers hyperscalers seamless access to Southeast Asia’s largest interconnection hub. The site is strategically positioned within an established data center park, offering redundant entry points and a fiber ring connecting to multiple telecom networks for low-latency, high-capacity connectivity.

A Commitment to Regional Leadership in APAC

The Johor Bahru development adds a critical node to STACK’s growing APAC portfolio, which already includes established operations in Australia, Japan, and South Korea. As hyperscale demand continues to surge in the region, STACK’s investment signals confidence in Malaysia’s evolving role as a digital infrastructure leader in Southeast Asia.

This latest expansion reflects STACK’s broader commitment to delivering flexible, scalable solutions for hyperscale clients while driving sustainable growth in high-potential markets throughout APAC. This campus will be the sixth Stack development in the APAC area.

More Coverage

Stack Releases Breaker Guard Design to Boost Data Center Safety

In a move aimed at raising the bar for operational safety across data centers and beyond, Stack Infrastructure has released the design for its Breaker Button Window Guard—also known simply as the Breaker Guard—into the public domain.

This open-source release underscores Stack’s broader commitment to enhancing reliability not only within its own facilities but also across industries where uptime and operational safety are critical.

The device, developed by Ryan Arthur, a Technical Operations Manager at Stack, was created to address a very real risk faced during routine maintenance: accidental door closures that could lead to unintended power disruptions.

The Breaker Guard acts as a fail-safe mechanism, preventing unplanned power outages by physically blocking access to breaker buttons while maintenance is underway. It's a small, adaptable solution with the potential to avert major disruptions across data centers, hospitals, industrial facilities, and more.

"At Stack, our first priority is to eliminate safety risks," said Donna Lynch, Vice President of Environmental Health and Safety. "This solution has improved operational excellence in our facilities and enabled a safer work environment."

Stack’s decision to release the design into the public domain reflects an open-source mindset that’s still relatively rare in the data center sector. The company’s leadership believes that the design’s applications stretch well beyond data centers, potentially benefiting any industry where uptime and operational safety are paramount.

"The Breaker Guard was born out of a simple idea: preventing a small oversight from causing major disruptions," explained Arthur. "I’m excited to see this design made available to a broader audience, where it has the potential to enhance safety far beyond our data centers."

The public release includes multiple configurations of the Breaker Guard to accommodate diverse infrastructure needs. Alongside the design files, Stack is providing a detailed installation guide and customization options.

This move not only highlights Stack’s focus on operational excellence but also sets a precedent for sharing innovations that could elevate safety standards across industries globally. Both the device configuration catalog and 3D print files are now available for download directly from Stack’s website.

More from DCF

STACK Infrastructure Plans Massive New Data Center Campus in Downtown Phoenix (November 8, 2022)
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STACK Infrastructure Expands in Fast-Growing Hillsboro Market (July 21, 2022)
The company expanded its presence in Hillsboro, Oregon, acquiring additional land to enlarge its campus to 230 megawatts of critical power, addressing the increasing demand in the region.

STACK Infrastructure Plans 1 Million SF Data Center Campus in Ashburn (January 6, 2022)
STACK unveiled plans to build a 216-megawatt data center on an 80-acre site in Ashburn, Virginia, featuring nearly 1 million square feet of data center space across three buildings.

STACK Infrastructure Goes Global, Integrates IPI Data Centers in Europe (March 1, 2022)
The company expanded into Europe by integrating data centers previously operated by DigiPlex and SUPERNAP Italia, creating a global platform spanning 16 markets across three continents.

At Data Center Frontier, we not only talk the industry talk, we walk the industry walk. In that spirit, DCF Staff members may occasionally employ AI tools to assist with content. Portions of this article were created with help from Open AI's GPT-4.

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