Ciena vs Sumitomo Electric Industries
Ciena's primary segment is Networking & Systems; Sumitomo Electric Industries's is Photonics & Optics. Ciena is larger by market cap ($48.3B vs $41.5B). Sumitomo Electric Industries reports higher tracked revenue ($32.7B vs $4.8B).
Shared segment: Distribution & Misc.
Side-by-side
| Ciena | Sumitomo Electric Industries | |
|---|---|---|
| Market cap | $48.3B | $41.5B |
| Revenue | $4.8B (FY2025) | $32.7B (FY2026) |
| Primary segment | Networking & Systems | Photonics & Optics |
| Market position | major | major |
| Country | United States | Japan |
| Tracked suppliers | 4 | 3 |
| Tracked customers | 3 | 3 |
| Chokepoint / criticality | 68/100 | 68/100 |
Market caps/revenue from the wafergraph dataset · data as of 2026-09-16. Criticality is a graph-derived chokepoint score (0–100). Coverage is partial; "Unpriced" means no reliable market cap.
How Ciena and Sumitomo Electric Industries compare
- Size: Ciena is the larger company by market cap.
- Revenue: Sumitomo Electric Industries reports higher tracked revenue.
- Supply-chain criticality: Both companies have the same chokepoint score (68/100).
- Footprint: Ciena (United States) vs Sumitomo Electric Industries (Japan).
Company hubs
Ciena · Sumitomo Electric Industries · Distribution & Misc segment
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Cite as: wafergraph, “Ciena vs Sumitomo Electric Industries”, https://wafergraph.com/compare/ciena-vs-sumitomo_electric (data as of 2026-09-16).