American Tower vs Iron Mountain
American Tower is larger by market cap ($79.0B vs $36.4B). American Tower reports higher tracked revenue ($10.6B vs $6.9B). Both are primarily Data Center Operators (Colo) companies.
Shared segment: AI & Data Center.
Side-by-side
| American Tower | Iron Mountain | |
|---|---|---|
| Market cap | $79.0B | $36.4B |
| Revenue | $10.6B (FY2025) | $6.9B (FY2025) |
| Primary segment | Data Center Operators (Colo) | Data Center Operators (Colo) |
| Market position | major | major |
| Country | United States | United States |
| Tracked suppliers | 4 | 4 |
| Tracked customers | 5 | 5 |
| Chokepoint / criticality | 8/100 | 8/100 |
Market caps/revenue from the wafergraph dataset · data as of 2026-08-12. Criticality is a graph-derived chokepoint score (0–100). Coverage is partial; "Unpriced" means no reliable market cap.
How American Tower and Iron Mountain compare
- Size: American Tower is the larger company by market cap.
- Revenue: American Tower reports higher tracked revenue.
- Supply-chain criticality: American Tower has the higher chokepoint score (8/100 vs 8/100).
- Footprint: American Tower (United States) vs Iron Mountain (United States).