AWS concentration at 34 sites now exceeds Digital Realty's 18-facility tracked footprint and Microsoft's 15—hyperscaler clustering is the forward demand signal no directory publishes
## Amazon Web Services leads all tracked data-center tenants
Amazon Web Services operates **34 tracked facilities** with approximately **1,920 MW of leased capacity** across DC Hub's global tenant database—the largest hyperscaler footprint in the platform. Digital Realty follows at 18 tracked facilities, Microsoft at 15.
No analyst PDF, commercial directory, or public report publishes per-occupier footprints at this granularity. The concentration pattern matters because **where AWS clusters, power headroom and land tighten next**. Markets with two or more AWS facilities signal sustained demand, rising comparables, and forward capacity constraints that price discovery misses until lease announcements catch up.
## What it means for site selection and capex timing
Hyperscaler concentration is the earliest available demand signal. When AWS adds a second or third facility in a metro, the adjacent submarkets typically see **power-queue acceleration within 12–18 months** and **land-price appreciation within 24**. Investors and developers pricing comparable markets today—markets one substation radius from known AWS clusters but not yet at capacity—are positioning ahead of the public announcement cycle.
The tenant dataset also reveals **negative clustering**: markets where AWS, Microsoft, and Google are collectively absent despite strong fiber and low constraint scores. Those absences may reflect corporate site-selection criteria (seismic risk, water scarcity, permitting friction) that DCPI scores do not yet capture, and they are worth validating before committing capex.
## Methodology
DC Hub's tenant database tracks **leased capacity by occupier across 1,800+ global facilities**. The 1,920 MW figure for AWS represents known leased footprint as of October 7, 2026, and excludes owned campuses where lease structures are not disclosed. The database updates daily as facility announcements, construction permits, and utility filings become available.
Source: DC Hub Tenant Research (https://dchub.cloud/research?series=tenant). Updated daily.
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