AHQ: Reykjavik, IcelandPUBLIC SOURCEFounded: —NO DATAOwnership: PrivatePUBLIC SOURCEatNorth is a Nordic data center company offering colocation, high-density and build-to-suit facilities.
CHQ: Dallas, Texas, USACOMPANY WEBSITEFounded: 2000PUBLIC SOURCEOwnership: Private (funds managed by KKR and Global Infrastructure Partners)PUBLIC SOURCECyrusOne designs, builds and operates data centers for hyperscale and large enterprise customers.
DRDigital Realty
digitalrealty.com
HQ: Austin, Texas, USAPUBLIC SOURCEFounded: 2004 (formed by GI Partners)PUBLIC SOURCEOwnership: Public REIT (NYSE: DLR), S&P 500 componentPUBLIC SOURCEDigital Realty is a data center REIT that owns and runs carrier-neutral facilities offering colocation, interconnection and larger-scale deployments through its PlatformDIGITAL platform.
EHQ: Redwood City, California, USAPUBLIC SOURCEFounded: 1998PUBLIC SOURCEOwnership: Public REIT (NASDAQ: EQIX), S&P 500 componentPUBLIC SOURCEEquinix is a global data center and interconnection company that runs colocation sites where enterprises, clouds, networks and SaaS providers connect to each other.
QDQTS Data Centers
qtsdatacenters.com
HQ: Reston, Virginia, USA (new HQ lease 2026; offices in Sterling, VA and Overland Park, KS)PUBLIC SOURCEFounded: 2003PUBLIC SOURCEOwnership: Private, owned by Blackstone (since 2021)PUBLIC SOURCEQTS Data Centers is a Blackstone-owned provider of carrier-neutral data centers for hyperscale and enterprise customers.
SISTACK Infrastructure
stackinfra.com
HQ: Denver, Colorado, USAPUBLIC SOURCEFounded: 2019PUBLIC SOURCEOwnership: Private (formed by IPI Partners; IPI acquired by Blue Owl in 2025)PUBLIC SOURCESTACK Infrastructure develops and operates data centers, including hyperscale campuses, powered land and colocation, for large cloud and AI/ML customers.
SHQ: Las Vegas, Nevada, USACOMPANY WEBSITEFounded: 2000COMPANY WEBSITEOwnership: PrivatePUBLIC SOURCESwitch designs, builds and operates large data center campuses and sells colocation, connectivity and related services.
VDVantage Data Centers
vantage-dc.com
HQ: Denver, Colorado, USAPUBLIC SOURCEFounded: 2010PUBLIC SOURCEOwnership: Private (DigitalBridge and Silver Lake)PUBLIC SOURCEVantage Data Centers builds and operates wholesale hyperscale data center campuses for cloud providers, hyperscalers and large enterprises.
