Stack: OSL03B

Latest Podcast Heiaveien 9

Operational

Fully operational facility

Oslo

Metro
Norway

Country
Nordics

Region
Western Europe

Region
Europe

Region
EMEA

Region

Stack: OSL03B

Campus: Stack: Fetsund OSL03 Campus

Site: Stack: OSL03A Fetsund

Short Code: OSL03B

Year Built: 2020

Utility Provider: Elvia

SqFt

Total Building Size

Operational Power

SqFt

Gross Colocation Size

The site was formerly known as DigiPlex Oslo Fetsund II

OSL03B Features

Building:

900 SQM of IT housing space
The site is located above the 1:1000 year flood event

Power:

N+N 24 MW high voltage supplies to the site
The building is supported by six 2.5 MVA continuous rated diesel generators
A separate landlords generator serves the building
Scalable UPS providing ‘diverse’ N+N power supply systems
N+N 24 MW high voltage supplies available to the site
Containerized LV generators are located parallel to the buildings in N+1 configuration with individual fuel storage belly tanks

Certifications:

ISO 9001: 2015 Quality Management
ISO 14001: 2015 Quality Management Environmental
ISO 27001: 2013 Information Security Management System
ISO 45001: 2018 Occupational Health & Safety Management
ISAE 3402/SOC 1 Report
LOS Energy AS 100% Renewable Energy Guarantee
Payment Card Industry Data Security Standard (PCI/DSS)
Combined SOC 1 and ISAE 3402 Type II

Map and Nearby Locations

Heiaveien 9

STACK INFRASTRUCTURE Sites

Nearby Facilities

Stack: OSL03B Power Growth Over Time

+0% since 2022

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Operational

Construction

Planned

Prospective

Land Bank

In Doubt

Currently Operational

across sites

Under Construction

sites currently building

Planned / Prospective

sites announced, but haven't started construction

Sites within 15 miles of Stack: OSL03B

Distance	Site	About
0.04 miles	Stack: OSL03D	STACK OSL03D is the newly built data center on its OSL03 Campus. The building spans an area of 1800 sqm of white space.
0.05 miles	Stack: OSL03C
0.06 miles	Stack: OSL03A Fetsund	OSL03A is the first and largest data center on STACK's Fetsund campus, built as DigiPlex Fetsund for anchor tenant EVRY. Two three-storey wings hold six 700 m2 data halls around a central office and lift core.
9.42 miles	Orange: Lorenskog OSL5	Orange Business OSL5 Data Center is located in Rasta in Oslo. The facility is the company's second data center in Norway and has been in operation since November 2017.
11.06 miles	Blix: NR5 Oslo	Blix Solutions is building a new data center in Oslo, Norway, which is scheduled to open around July 2025.
11.06 miles	Magnora: Nedre Rommen 5	Magnora and Blix are converting space inside Oslo's Nedre Rommen 5 property into a high-density AI data center.
11.45 miles	Blix BDC Oslo
11.72 miles	Orange: Grorud OSL3	Orange Business OSL3 Data Center is located in Grorud in Oslo, only 15 minutes from Oslo's city center. The facility is the company's first data center in Oslo and has been operational since 2005.
13.20 miles	Verizon Oslo
13.20 miles	Bulk: Oslo Internet Exchange (OS-IX)	Bulk Infrastructure has begun the expansion of its Oslo Internet Exchange facility (OS-IX) in Norway. The expansion will see three new data halls built, adding 5.5MW of IT capacity.
13.20 miles	IP-Only HMG9
13.53 miles	Green Mountain: OSL1 DC1	DC1 is the first building on Green Mountain's Enebakk (OSL1-Enebakk) campus outside Oslo; construction ran from September 2019 to October 2020.
13.54 miles	Green Mountain: OSL1 DC4	In April 2023, Green Mountain announced another expansion at its OSL1-Enebakk site (previously known as DC3-Oslo).
13.55 miles	Green Mountain: OSL1 DC2	The second building (DC2) of Green Mountain's OSL1-Enebakk campus was launched in 2021.
13.60 miles	Green Mountain: OSL1 DC3	The third building (DC3) of Green Mountain's OSL1-Enebakk campus was launched in December 2022. The 10,000 sqm (107,700 sq ft) three-story colocation facility was first announced in late 2021.
13.63 miles	Green Mountain: OSL1 DC5	DC5 is the fifth building on Green Mountain's Enebakk (OSL1-Enebakk) campus: a three-story, 9,600 m² (103,335 sq ft) facility completed in 2025.
13.75 miles	Skygard: Hovinbyen, Oslo	Construction has begun on the first facility in Hovinbyen, Oslo, following a joint investment of NOK 2.4 billion (approximately $200 million).
13.95 miles	TeliaSonera Oslo
13.97 miles	Fujitsu Oslo
14.03 miles	Vaultica: OSL01	Vaultica's OSL01 is a carrier-neutral colocation data center in Oslo's Økern district, in a building put up in 1981 as the Norwegian government's data hub. DigiPlex ran it from 2001; it became STACK in 2022 and Vaultica in 2025.
15.54 miles	IP-Only: Availo DC0
15.56 miles	Orange: Oslo OSL3	Previously operated by Basefarm
15.58 miles	Blix Gullhaugveien
15.74 miles	Core PointInterested in this information?Contact us	Data center facility details are available on request.Interested in this information?Contact us
16.01 miles	Polar DC: OSL01
16.29 miles	Vaultica: OSL02	Vaultica's OSL02 is an underground colocation data center in former IBM bunkers beneath the Rosenholm Business Center, south of Oslo. DigiPlex rebuilt and opened it in 2010; it became STACK in 2022 and Vaultica in 2025.
16.40 miles	Blix CJH Oslo
17.30 miles	SSC Forskningsparken Oslo (Oslo Science Park)
19.62 miles	Polarise: AI Hub One	Polarise is set to open its first data center, named AI Hub One, a 3,800 sqm (40,900 sq ft) facility at Gardermoen Airport in Oslo, Norway.

Stack: OSL03B Data Center Photos See all

Fetsund II under construction in 2020

Source: Baxtel

Operating Company

STACK Infrastructure is a privately held platform sponsored by IPI Partners that focuses on large scale wholesale capacity and campus development for hyperscale and enterprise customers.

The company was launched in 2019 when IPI combined the remaining Infomart Data Centers assets with selected T5 Data Centers facilities, and industry coverage at launch cited eight data centers across six U.S. markets totaling about 100 MW. In March 2022, IPI unified DigiPlex in the Nordics and SUPERNAP Italia in Milan under the STACK brand to form STACK EMEA, expanding the platform across Europe. STACK has since added international sites, including the first phase of a 56 MW campus in Toronto and its first Australian data center in Melbourne. Core services referenced by the company and trade press include wholesale colocation, build to suit, and powered shell solutions.

STACK Infrastructure History:

2025: Sold its European enterprise colocation business (seven data centers in Stockholm, Oslo, Copenhagen, Milan and Geneva) to Apollo-managed funds; it now operates as Vaultica. STACK EMEA kept its hyperscale campuses.
2023: Opened the first Australian data center in Melbourne on a multi-building campus.
2023: Delivered the first 8 MW phase of a planned 56 MW campus in Toronto.
2022: Rebranded DigiPlex (Nordics) and SUPERNAP Italia (Milan) as STACK EMEA.
2019: IPI Partners launched STACK Infrastructure by combining the three Infomart Data Centers sites with selected T5 Data Centers assets. The company was rebranded as STACK INFRASTRUCTURE
2018: ASB Real Estate Investments sold the three remaining Infomart Data Centers facilities in San Jose, Hillsboro, and Ashburn to IPI Partners; the Dallas Infomart carrier hotel was sold separately to Equinix earlier that year.
2014: Acquired a facility in Ashburn that had been owned by AOL.
2014: ASB Real Estate Fund, a subsidiary of DCI Technology Holdings, merged Infomart with Fortune Data Centers. The combined company was renamed to Infomart Data Centers.
2012: Expanded to Oregon with a building in Hillsboro
2007: John Sheputis purchased first Fortune Data Center in San Jose, CA, backed by ASB Real Estate
2006: ASB Real Estate purchased Infomart Dallas building
2006: Fortune Founded as Fortune Data Centers

Facilities

News See all

Østfold Energi Eyes Data Centers South of Oslo

March 17, 2026 Oslo

Another data center may be on the way in Norway. Østfold Energi is preparing sites in Sarpsborg and Våler in partnership with local municipalities, with Google likely to take the Våler location.“We have extensive experience with project development in collaboration with landowners, local...

Stack Infrastructure breaks ground on 60MW data center expansion in California

March 29, 2024 STACK INFRASTRUCTURE

IPI-owned company Stack Infrastructure announced this week that it has broken ground on a 60MW data center expansion in Silicon Valley, California. The company plans to build two data centers to add 60MW of capacity, an advanced manufacturing facility, and a parking structure, spanning 19 acres....

Three companies invest in combined $200m data center in Oslo

March 19, 2024 Oslo

Norwegian telco Telenor, energy company Hafslund and investment fund HitecVision are building a data center in Oslo, Norway, via a newly formed joint venture, Skygard. These companies are to make a NOK 2.4 billion ($200m) joint investment in this data center which is already undergoing...

Stack Infrastructure to expand footprint in Virginia

January 11, 2024 STACK INFRASTRUCTURE

Data center firm Stack Infrastructure this week announced plans to expand its footprint in Virginia with a new 72MW campus in Leesburg. in Loudoun County. This planned facility, known as the NVA-06 will initially host a 48MW building set to deliver Q2 2025, followed by a second 24MW building to...

Stack Infrastructure to expand facility in Virginia’s Prince William County

December 08, 2023 STACK INFRASTRUCTURE

Data center firm Stack Infrastructure announced this week that it is expanding its campus in Virginia’s Prince William County. The company has purchased land from and adjacent to the Youth For Tomorrow non-profit in Bristow to expand its NVA02 campus. Tim Hughes, chief development officer, Stack...