21Vianet vs Iron Mountain
Iron Mountain is larger by market cap ($36.4B vs $2.1B). Iron Mountain reports higher tracked revenue ($6.9B vs $544M). Both are primarily Data Center Operators (Colo) companies.
Shared segment: AI & Data Center.
Side-by-side
| 21Vianet | Iron Mountain | |
|---|---|---|
| Market cap | $2.1B | $36.4B |
| Revenue | $544M (FY2019) | $6.9B (FY2025) |
| Primary segment | Data Center Operators (Colo) | Data Center Operators (Colo) |
| Market position | niche | major |
| Country | China | United States |
| Tracked suppliers | 4 | 4 |
| Tracked customers | 5 | 5 |
| Chokepoint / criticality | 6/100 | 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 21Vianet and Iron Mountain compare
- Size: Iron Mountain is the larger company by market cap.
- Revenue: Iron Mountain reports higher tracked revenue.
- Supply-chain criticality: Iron Mountain has the higher chokepoint score (8/100 vs 6/100).
- Footprint: 21Vianet (China) vs Iron Mountain (United States).