Iron Mountain vs NTT
Both are primarily Data Center Operators (Colo) companies. NTT is larger by market cap ($87.1B vs $33.8B). NTT reports higher tracked revenue ($7.4B vs $6.9B).
Shared segment: AI & Data Center.
Track the chain
What moved in the semiconductor supply chain — This Week in the Chain, the free weekly wafergraph briefing.
Subscribe to the free weekly briefing →
Free · no login · 615 companies, updated weekly
Side-by-side
| Iron Mountain | NTT | |
|---|---|---|
| Market cap | $33.8B | $87.1B |
| Revenue | $6.9B (FY2025) | $7.4B (FY2026) |
| Primary segment | Data Center Operators (Colo) | Data Center Operators (Colo) |
| Market position | major | major |
| Country | United States | Japan |
| Tracked suppliers | 4 | 4 |
| Tracked customers | 5 | 5 |
| Chokepoint / criticality | 8/100 | 8/100 |
Market caps/revenue from the wafergraph dataset · data as of 2026-10-04. Criticality is a graph-derived chokepoint score (0–100). Coverage is partial; "Unpriced" means no reliable market cap.
How Iron Mountain and NTT compare
- Size: NTT is the larger company by market cap.
- Revenue: NTT reports higher tracked revenue.
- Supply-chain criticality: Both companies have the same chokepoint score (8/100).
- Footprint: Iron Mountain (United States) vs NTT (Japan).
Company hubs
Open the interactive comparison tool →
Cite as: wafergraph, “Iron Mountain vs NTT”, https://wafergraph.com/compare/iron_mountain-vs-ntt_data (data as of 2026-10-04).
Frequently asked questions3
- Is Iron Mountain bigger than NTT?
- NTT is larger by market cap ($87.1B vs $33.8B).
- What's the difference between Iron Mountain and NTT?
- Iron Mountain is a major in Data Center Operators (Colo) based in United States; NTT is a major in Data Center Operators (Colo) based in Japan. Both operate in the AI & Data Center segment.
- Who are Iron Mountain's and NTT's suppliers?
- wafergraph tracks 4 suppliers for Iron Mountain and 4 for NTT.