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 ($60.4B vs $46.5B). Sumitomo Electric Industries reports higher tracked revenue ($32.4B vs $4.8B).
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Side-by-side
| Ciena | Sumitomo Electric Industries | |
|---|---|---|
| Market cap | $60.4B | $46.5B |
| Revenue | $4.8B (FY2025) | $32.4B (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 2026-10-09. 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 2026-10-09).
Frequently asked questions3
- Is Ciena bigger than Sumitomo Electric Industries?
- Ciena is larger by market cap ($60.4B vs $46.5B).
- What's the difference between Ciena and Sumitomo Electric Industries?
- Ciena is a major in Networking & Systems based in United States; Sumitomo Electric Industries is a major in Photonics & Optics based in Japan. Both operate in the Distribution & Misc segment.
- Who are Ciena's and Sumitomo Electric Industries's suppliers?
- wafergraph tracks 4 suppliers for Ciena and 3 for Sumitomo Electric Industries.