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CyrusOne:65 data center sites in United States.
As of 20 October 2026, Real Assets tracks 65 data center sites listed under CyrusOne in the United States: 49 operating and 16 planned or under construction. Reported power capacity: 555 MW operating, 2.8 GW planned or under construction. It ranks number 3 by sites among 151 named operators, with 8% of the 849 sites tracked. Largest states: Texas (23), Virginia (10), Illinois (7).
Open the data centers dataLargest operators in United States
- Digital Realty83
- Google77
- CyrusOne65
- QTS Data Centers47
- Amazon34
- Meta30
- Microsoft28
- Vantage Data Centers24
- Equinix17
- DataBank14
- Tract12
- STACK Infrastructure11
How this data is built
Real Assets reads company pages, filings, news and listings, and records figures with a link to the page that published them.
Counts are sites Real Assets has recorded, not a full census, and grow as coverage grows. Sites are listed with the operator as published (the owner for industrial parks). Data updated 20 October 2026.
Questions
How many data center sites does CyrusOne have in the United States?
65 tracked as of 20 October 2026: 49 operating and 16 planned or under construction. This is what we have recorded, not a full census.
Where are CyrusOne's data center sites?
Largest states by sites: Texas (23), Virginia (10), Illinois (7), Ohio (6), Arizona (4).
How much power capacity does CyrusOne have?
Reported power capacity: 555 MW operating, 2.8 GW planned or under construction.
How does CyrusOne compare with other data center operators?
It ranks number 3 of the 20 largest named operators by sites tracked. The largest is Digital Realty with 83.
Where does the data come from?
Figures link to the page that published them. Publishers behind Real Assets data include Public Storage, Americold, Unite Students, Inside Self-Storage, Baxtel.
See every site, operator and source
This page is the summary. The workspace has the full list, the map, the deals and the sources behind each figure.
Open the data centers data