STACK Infrastructure
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STACK Infrastructure is a wholesale data center developer and operator that sells hyperscale campuses and build-to-suit facilities (“HYPERSTACK”), immediately available wholesale colocation and private data suites (“READYSTACK”), and powered shell options (“POWERSTACK”) to hyperscale cloud providers and large enterprises. Formed in 2019 when investor IPI Partners combined the remaining Infomart Data Centers assets with select T5 Data Centers facilities, the company has grown rapidly through both acquisition (DigiPlex in the Nordics, SUPERNAP Italia in Milan, SafeHost in Switzerland) and organic development into a global platform spanning the Americas, EMEA, and APAC. As of 2025 the company describes raising more than $36 billion in capital globally and has been called one of the largest and fastest-growing private data center operators in the world, with multi-hundred-megawatt campuses under development in markets like Northern Virginia, Phoenix, and Melbourne. STACK’s most notable current work includes serving as the development partner for Amazon Web Services on multiple large AI-focused campuses in the Shreveport/Bossier, Louisiana area, including the AI-optimized Resilient Technology Park.
STACK Infrastructure has a confirmed data center presence at the following locations:
FACILITY OPERATOR
Phone: +1.866.307.2510 Email: [email protected]
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STACK Infrastructure Data Center Locations
- Melbourne, Victoria, Australia MEL01 PENDING REVIEW
MEL01 is STACK's flagship hyperscale campus in West Melbourne, which secured an AUD $1.3 billion green financing facility in 2025 for its next phase of development. - Melbourne, Victoria, Australia MEL02 PENDING REVIEW
- Toronto, Ontario, Canada TOR01 PENDING REVIEW
The 20-acre campus is just six miles from 151 Front Street, Canada's largest carrier hotel and primary internet exchange point in Toronto. - Copenhagen, Denmark Copenhagen Campus PENDING REVIEW
This site was formerly a DigiPlex facility before being unified under the STACK EMEA brand in 2022. - Frankfurt, Hesse, Germany Frankfurt Campus PENDING REVIEW
This 80MW hyperscale campus was one of STACK's earliest announced entries into the German market. - Siziano, Italy MIL02A PENDING REVIEW
MIL02A sits adjacent to the MIL01 campus and is served by 100% renewable power, and is the company's third data center in Siziano. - Siziano, Italy MIL01 PENDING REVIEW
This campus was formerly operated as SUPERNAP Italia before IPI's 2021 acquisition and 2022 rebrand under the STACK EMEA name. - Inzai, Japan Inzai Campus PENDING REVIEW
This 36MW, two-building campus was STACK's first APAC facility, located in the Inzai area of Tokyo alongside operators like Digital Realty and Cold DCS. - Osaka, Japan Osaka Campus PENDING REVIEW
The Osaka campus is planned for 72MW of capacity across three buildings. - Trollåsen, Norway Holtskogen Campus PENDING REVIEW
The Holtskogen Campus in Oslo was originally developed by DigiPlex before being rebranded as STACK EMEA in 2022. - Fetsund, Norway Fetsund Data Center PENDING REVIEW
- Oslo, Norway OSL03D PENDING REVIEW
OSL03D spans an area of 1,800 sqm of white space on the OSL03 Campus. - Seoul, South Korea Seoul Data Center PENDING REVIEW
This 48MW facility has secured power onsite and was made available for pre-lease. - Upplands Väsby, Sweden STO01 PENDING REVIEW
The STO01 campus occupies 4 hectares in Upplands Väsby, a communications hub for Stockholm's northern suburbs. - Upplands Väsby, Sweden STO01B PENDING REVIEW
STO01B is the second data center building on Stack's Stockholm campus. - Gland, Switzerland Gland Data Center PENDING REVIEW
- Rafz, Switzerland Rafz Data Center PENDING REVIEW
- Avondale, Arizona, USA Avondale Techplex PENDING REVIEW
The 79-acre Avondale Techplex site added more than 150MW of capacity and one million square feet of build-out when acquired in 2020. - Phoenix, Arizona, USA PHX02 PENDING REVIEW
This five-building, 51-acre campus is designed to deliver nearly 250MW via a dedicated on-site substation for large-scale cloud and AI workloads. - San Jose, California, USA SVY01 PENDING REVIEW
This 100MW San Jose campus underwent a 60MW expansion announced in 2024 to serve San Jose's growing AI compute demand, according to the city's own mayor. - Santa Clara, California, USA 1200 Memorex Drive PENDING REVIEW
This four-story, 472,920-square-foot facility was built on a 17-acre site acquired in 2022 from Coca-Cola Europacific Partners, which had run a bottling plant there for over 50 years. - Alpharetta, Georgia, USA ATL01 PENDING REVIEW
- Lithia Springs, Georgia, USA ATL02 PENDING REVIEW
- Elk Grove Village, Illinois, USA CHI01B PENDING REVIEW
- Elk Grove Village, Illinois, USA CHI01 PENDING REVIEW
- Benton, Louisiana, USA Bossier Parish AWS Campus PENDING REVIEW
- Shreveport, Louisiana, USA Resilient Technology Park PENDING REVIEW
This campus is described as a landmark AI-optimized data center campus, approved by the Shreveport City Council in December 2025 with a planned $10 billion, seven-building build-out for AWS. - Blanchard, Louisiana, USA Blanchard Campus (State Line) PENDING REVIEW
Also known as the "State Line" project, this 810-acre hyperscale development will serve as a primary regional anchor for AWS cloud operations, with a design that relies on natural air cooling for 87% of the year. - New Albany, Ohio, USA NAL01 TIER III PENDING REVIEW
The original campus building was acquired in 2019 as a purpose-built, Tier III data center within the so-called Golden Triangle linking Northern Virginia, New Jersey, and Chicago. - Hillsboro, Oregon, USA Portland Campus PENDING REVIEW
This is STACK's flagship Portland-area campus, with an additional 25MW of capacity planned for Q4 2027 and 96MW more starting in 2029. - Dallas/Fort Worth region, Texas, USA South Dallas Campus PENDING REVIEW
- Ashburn, Virginia, USA Loudoun County Campus PENDING REVIEW
STACK acquired the original site here from AOL in 2014, making it one of the company's longest-held facilities. - Manassas, Virginia, USA NVA05B PENDING REVIEW
This 340,000-square-foot building runs on 100% renewable energy and incorporates low-carbon concrete in its construction. - Manassas, Virginia, USA NVA02D PENDING REVIEW
This building sits within STACK's larger NVA02 Campus and was developed on land partly acquired adjacent to the Youth For Tomorrow nonprofit in Bristow.
By Continent
Common Questions
Does STACK Infrastructure build AI/GPU-specific data centers?
Yes. STACK is the development partner for Amazon Web Services on the Resilient Technology Park campus in Shreveport, Louisiana, which industry press describes as a landmark AI-optimized data center campus, part of an announced roughly $18 billion, multi-campus AWS investment across the Caddo-Bossier area of Louisiana.
What kind of company is STACK Infrastructure?
STACK is a wholesale colocation and build-to-suit data center developer/operator, not a cloud service provider — it sells physical rack, suite, campus, and powered-shell capacity that hyperscale and enterprise clients fill with their own equipment, under its HYPERSTACK, READYSTACK, and POWERSTACK product lines.
How many markets does STACK operate in?
As of a December 2022 company press release, STACK described its portfolio as spanning 4 continents, 12 countries, and 24 cities, and it has continued expanding since, adding markets such as Melbourne, Toronto, and additional Louisiana campuses.
Who owns STACK Infrastructure?
STACK Infrastructure is a privately held platform sponsored by investment firm IPI Partners (also referenced as IPI Data Center Partners, co-sponsored by ICONIQ Capital and an affiliate of Iron Point Partners).
Does STACK Infrastructure offer colocation services?
Yes — we've identified 34 facilities where STACK Infrastructure may offer colocation services. Please contact STACK Infrastructure directly to confirm current availability and terms.
Does STACK Infrastructure offer cloud services?
We haven't confirmed cloud services for STACK Infrastructure yet — this isn't a definitive no, since our research can miss things. Please contact STACK Infrastructure directly to confirm cloud availability.
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