Largest Data Center Companies Statistics 2026: Capacity and Revenue

Equinix’s global footprint spans 280 data centers in 77 markets in 36 countries, according to its latest annual report. Digital Realty reports a global data center footprint of 300+ facilities in 55+ metros across 30+ countries on six continents. Vantage Data Centers says it has 9 GW of power across 40 campuses. The largest data center companies rank differently by buildings, gigawatts, revenue, or spending, so each figure below names its metric.

Alphabet’s purchases of property and equipment reached $132,402 million over the trailing twelve months to Q2 2026. Equinix’s revised fiscal 2026 revenue guidance is $10,205 million to $10,285 million. CoreWeave, meanwhile, expanded active power to 1.5 GW and contracted power to approximately 3.7 GW.

Key Takeaways

• Equinix’s 280 data centers include 23 xScale data centers and the MC1 and SN1 data centers held in unconsolidated joint ventures, across 77 markets.
• STACK Infrastructure reports 8.5+ GW built and under development, while Vantage reports 9 GW of power.
• CoreWeave expanded active power to 1.5 GW and contracted power to approximately 3.7 GW; NTT lists 2,000 MW+ of critical IT load in over 20 countries.
• Alphabet’s twelve-month purchases of property and equipment of $132,402 million were 12.9 times the top of Equinix’s revised fiscal 2026 revenue guidance.
• Amazon’s trailing-twelve-month purchases of property and equipment, net of proceeds from sales and incentives, reached $169,007 million, up 64% from $102,953 million a year earlier.
• Epoch AI estimates that Colossus 2 is the largest tracked AI data center at about 946 MW of current IT power.

Editor’s Choice

• Equinix quarterly revenue: $2.625 billion, a 16% increase over the same quarter of the previous year.
• Digital Realty backlog: a record $1.9 billion of annualized GAAP base rent at 100% share at the end of Q2 2026.
• CoreWeave revenue backlog: approximately $104 billion as of June 30, 2026.
• Microsoft Cloud footprint: over 400 data centers in 70 regions around the world, as of September 2025.
• AWS footprint: 124 Availability Zones within 39 geographic regions.
• Meta capex outlook: $130 billion to $145 billion in 2026 capital expenditures, including principal payments on finance leases.

Largest Data Center Companies by Number of Data Centers

• Digital Realty reports 300+ facilities in 55+ metros on six continents, the highest site count among the companies listed below.
• Equinix’s 280 data centers include 23 xScale data centers.
• CyrusOne lists 60+ operational data centers and 50+ more in development, with 16.2 million sq. ft. of data center space.
• Aligned Data Centers counts 40 data centers under management and future development across 23 campuses, so planned sites sit inside its total.
• CoreSite owns and operates 30 data centers totaling more than 4.8 million square feet.

Source: Digital Realty, Equinix 10-K, CyrusOne, Aligned Data Centers, Vantage Data Centers, CoreSite, 2026

About This Data

• Compiled from 18 sources: 9 company annual reports and quarterly earnings releases, 7 company infrastructure and website pages, 1 company blog post, and Epoch AI’s independent data center tracker.
• Sources date from September 2025 (a Microsoft blog post) to October 2026.
• Only company filings, company pages, and independent research qualified; paid market-research reports were excluded, and website counters are reported as each company’s own claim.
• Figures are reviewed on a rolling basis and updated when sources publish new editions.

What is the largest data center company?

The answer depends on the metric. Digital Realty calls itself the world’s largest cloud- and carrier-neutral data center platform, with 300+ facilities. Equinix reports 280 data centers and quarterly revenue of $2.625 billion, the highest among the colocation operators in the revenue chart below. Vantage reports 9 GW of power. Ranking single sites by power, as the largest data centers in the US list does, gives a different order.

Largest AI Data Centers by Operator

• Epoch AI estimates Colossus 2 at about 946 MW of current IT power as of October 2026.
• Anthropic-Amazon New Carlisle follows at about 910 MW, and Microsoft Fairwater Atlanta at about 636 MW.
• The figures are operational capacity, the power the facilities can already draw, and the city of San Diego draws electricity at an average rate of about 800 MW for scale.
• Epoch reports that about 80% of the time an IT power estimate falls within a factor of 1.4 of the true value.

Which is the largest AI data center?

Colossus 2 is the largest tracked AI data center at about 946 MW of current IT power, Epoch AI estimates. These figures are estimates, not disclosed specifications, so individual numbers should be read as approximate. The ranking covers single sites, and the wider AI data center build-out spans many smaller campuses.

Recent Developments

• October 12, 2026: Epoch AI updated its ranking of the largest AI data centers by power capacity, with Colossus 2 at about 946 MW of current IT power.
• August 11, 2026: CoreWeave reported second-quarter results after expanding active power by nearly 500 MW to reach 1.5 GW.
• August 5, 2026: Iron Mountain reported data center leasing of 110 MW year-to-date, including 75 MW in July 2026.
• July 30, 2026: Amazon reported a year-over-year increase of $66.1 billion in trailing-twelve-month purchases of property and equipment, net of proceeds from sales and incentives, which primarily reflects investments in artificial intelligence.
• July 29, 2026: Meta narrowed its 2026 capital expenditure outlook to $130 billion to $145 billion, from a prior outlook of $125 billion to $145 billion.
• July 23, 2026: Digital Realty reported a record total backlog of $1.9 billion of annualized GAAP base rent at 100% share.

Largest Data Center Companies by Power Capacity

• Vantage Data Centers says it has 9 GW of power across 26 markets on 5 continents.
• STACK Infrastructure reports 8.5+ GW built and under development and another 7.5+ GW of planned and potential development across 24 global markets.
• Aligned Data Centers reports 2.9 GW of operational and planned capacity.
• NTT describes itself as the 3rd largest data center provider in the world, with 2,000 MW+ of critical IT load.
• CoreWeave grew total contracted power to approximately 3.7 GW, about 2.5 times its 1.5 GW of active power.

Source: Vantage Data Centers, STACK Infrastructure, Aligned Data Centers, NTT, CoreWeave, CyrusOne, 2026

Worth noting: STACK’s 8.5+ GW counts capacity built and under development, plus 7.5+ GW planned and potential. NTT’s 2,000 MW+ is critical IT load in over 20 countries. CoreWeave’s 1.5 GW is active power, with approximately 3.7 GW contracted. Each figure measures a different stage of capacity, so no single ranking holds without a label on each.

Largest Data Center Operators by Revenue

• Equinix reported revenues of $2.625 billion, a 16% increase over the same quarter of the previous year, and delivered $424 million of annualized gross bookings.
• Equinix also added a record 9,700 net interconnections in the quarter.
• Digital Realty reported total revenues of $1.9 billion in the second quarter of 2026, up 18% from the previous quarter and 29% from the same quarter last year.
• CoreWeave reported revenue of $2,575 million for the three months ended June 30, 2026, against $1,212 million a year earlier.
• That is a gain of 112% for CoreWeave.
• CoreWeave also reported a revenue backlog of approximately $104 billion as of June 30, 2026.

Equinix Data Center Statistics

• Equinix expanded its total global footprint to 280 data centers through IBX openings, acquisitions, and xScale investments.
• Equinix raised fiscal 2026 revenue guidance from $10,144 million to $10,244 million to $10,205 million to $10,285 million.
• The revised range sits about $51 million higher at its midpoint.
• Guidance is a company forecast, not a reported result.

Source: Equinix second-quarter 2026 results

How many data centers does Equinix have?

Equinix’s global footprint spans 280 data centers, in 77 markets in 36 countries. That total includes 23 xScale data centers and the MC1 and SN1 data centers held in unconsolidated joint ventures.

Digital Realty Data Center Statistics

• Digital Realty describes a global footprint of 300+ facilities in 55+ metros across 30+ countries on six continents.
• Second-quarter 2026 total revenues reached $1.9 billion, an 18% increase from the previous quarter.
• Its record backlog was $1.9 billion of annualized GAAP base rent at 100% share and $1.4 billion at Digital Realty’s share.

Key finding: Digital Realty reported total revenues of $1.9 billion in the second quarter of 2026, a 29% increase from the same quarter last year. At the end of Q2 2026, its backlog stood at a record $1.9 billion of annualized GAAP base rent at 100% share.

NTT and Iron Mountain Data Center Capacity

• NTT lists 2,000 MW+ of critical IT load in over 20 countries.
• NTT describes itself as the 3rd largest data center provider in the world.
• Iron Mountain reported data center leasing of 110 MW year-to-date.
• July 2026 alone accounted for 68% of that year-to-date total.

Source: NTT Global Data Centers, Iron Mountain second-quarter 2026 results

Cloud Providers’ Data Center Footprint

• The AWS Cloud spans 124 Availability Zones within 39 geographic regions.
• North America holds 31 of those zones, or 25%.
• Microsoft describes its global Microsoft Cloud as over 400 data centers in 70 regions around the world, as of September 2025.
• Because AWS reports zones rather than buildings, hyperscale data center counts vary by source.

Source: Amazon Web Services, Microsoft, 2025 to 2026

How many data centers does AWS have?

AWS reports 124 Availability Zones within 39 geographic regions. AWS publishes zones and regions and gives no building count, so any AWS building total is an outside estimate. North America holds 31 of those zones in 9 regions.

Cloud Revenue at the Largest Providers

• AWS segment sales increased 37% year over year to $42.2 billion.
• Revenue in Microsoft’s Intelligent Cloud segment increased 32%.
• Google Cloud revenues increased 82%.
• Each company defines its segment differently, and wider cloud computing figures cover adoption beyond these three.

Hyperscaler Data Center Spending

• Amazon’s purchases of property and equipment, net of proceeds from sales and incentives, reached $169,007 million over the trailing twelve months, up 64% year over year.
• Microsoft’s twelve-month additions to property and equipment compare with $64,551 million a year earlier, about 1.8 times that level.
• Together the three spent $417,357 million over twelve months.

Amazon’s quarterly figure is the cash flow line before proceeds and incentives:

• Amazon’s purchases of property and equipment were $54,208 million in the three months ended June 30, 2026, against $32,183 million a year earlier.
• That is 68% more than in the year-earlier quarter.
• Meta’s capital expenditures, including principal payments on finance leases, were $31.08 billion.

Why it matters: Alphabet’s twelve-month purchases of property and equipment of $132,402 million were 12.9 times the top of Equinix’s revised fiscal 2026 revenue guidance. One cloud’s yearly capex outruns Equinix’s guided annual revenue many times over, though these lines cover all property and equipment, including assets outside data centers.

Which companies spend the most on data centers?

Amazon’s trailing-twelve-month purchases of property and equipment, net of proceeds from sales and incentives, were $169,007 million, Alphabet’s $132,402 million and Microsoft’s $115,948 million. Amazon ranks first, though these lines cover all property and equipment, and industry-wide data center statistics give the sector totals.

Data Center Spending by Quarter

• Amazon’s trailing-twelve-month net purchases of property and equipment rose from $87,978 million in Q1 2025 to $169,007 million in Q2 2026.
• That is about 1.9 times the Q1 2025 level in five quarters.
• Amazon says the year-over-year increase of $66.1 billion primarily reflects investments in artificial intelligence.

• Alphabet’s quarterly purchases of property and equipment climbed from $23,953 million in Q3 2025 to $44,924 million in Q2 2026.
• Alphabet’s Q2 2026 spending was about 1.9 times its Q3 2025 level.
• Microsoft’s quarterly additions to property and equipment were $35,802 million, against $17,079 million in the same quarter a year earlier.

By the numbers: Alphabet’s purchases of property and equipment ran at $23,953 million, $27,851 million, $35,674 million and $44,924 million across the four quarters to Q2 2026. Amazon’s trailing-twelve-month net figure reached $169,007 million. Both series rose in every quarter shown, with no pause in the build cycle.

National data center construction figures show where that money lands, often in gigawatt-scale campuses.

Largest Planned AI Data Center Campuses

• Epoch AI projects Microsoft Fairwater Wisconsin at 2,263 MW of IT power on completion, the largest planned AI data center it tracks.
• Anthropic-Amazon New Carlisle follows at 1,925 MW and OpenAI Stargate New Mexico at 1,750 MW.
• Microsoft Fairwater Wisconsin is projected for completion in Q2 2028.
• Planned sites at this scale feed national data center energy consumption estimates.

Conclusion

Among the colocation operators listed here, Equinix’s 280 data centers and Digital Realty’s 300+ facilities lead on site counts. Vantage’s 9 GW and STACK’s 8.5+ GW lead on stated power. Alphabet alone spent $132,402 million on property and equipment over twelve months. The largest data center companies change with the metric, so check what each figure counts. Epoch AI’s planned-site ranking tops out at about 2,263 MW for Microsoft Fairwater Wisconsin, and planned sites are where the power rankings will move next.