Ciena vs Sumitomo Electric Industries
Ciena is larger by market cap ($54.9B vs $44.5B). Sumitomo Electric Industries reports higher tracked revenue ($32.2B vs $4.8B). Ciena's primary segment is Networking & Systems; Sumitomo Electric Industries's is Photonics & Optics.
Shared segment: Distribution & Misc.
Side-by-side
| Ciena | Sumitomo Electric Industries | |
|---|---|---|
| Market cap | $54.9B | $44.5B |
| Revenue | $4.8B (FY2025) | $32.2B (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 2026-08-12. 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: Ciena has the higher chokepoint score (68/100 vs 68/100).
- Footprint: Ciena (United States) vs Sumitomo Electric Industries (Japan).
Company hubs
Ciena · Sumitomo Electric Industries · Distribution & Misc segment