CIENA CORP
Customers
1
1 active
Suppliers
3
3 active
Largest customer
—
No % disclosed
Named-customer revenue
—
No estimate available
Latest period
Jun 27, 2026
10-K filed 2026-08-13
Customers 1
Companies CIEN discloses as major customers, as a share of CIEN revenue. 1 active, 0 lapsed.
| Company | % of CIEN revenue | Est. revenue | Period | Trend | Status | Source |
|---|---|---|---|---|---|---|
| T AT&T INC. |
Named | — | FY 2025-11-01 | — | Active | 10-K 2025-12-12 |
Sales to AT&T were $500.7 million, or 10.5% of total revenue, in fiscal 2025, and $475.3 million, or 11.8% of total revenue, in fiscal 2024. AT&T is a customer of Ciena; see Note 2 above. AT&T is a customer of Ciena; see Note 2 above. | ||||||
Suppliers 3
Companies that disclose CIEN as a major customer, as a share of their own revenue. 3 active, 0 lapsed.
| Company | % of their revenue | Est. $ from CIEN | Period | Trend | Status | Source |
|---|---|---|---|---|---|---|
| CLS CELESTICA INC |
Named | — | FY 2025-12-31 | — | Active | 10-K 2026-02-27 |
Our CCS segment customers include Amazon Fulfillment Services, Inc., Meta Platforms, Inc., Google Inc., Ciena Corporation, Dell Technologies, Hewlett-Packard Enterprise, and IBM Corporation, Inc. Our ATS segment customers include Applied Materials, Inc., LAM Research and Honeywell Inc. We are focused on strengthening our relationships with strategic customers through the delivery of new and expanding end-to-end solutions. | ||||||
| SWKS SKYWORKS SOLUTIONS, INC. |
Named | — | FY 2025-10-03 | — | Active | 10-K 2025-11-07 |
Our key customers include Amazon, Apple Inc. (“Apple”), Arcadyan, Arris, Bose, Ciena, Cisco, Ericsson, Fibocom, Garmin, Gemalto (a Thales company), General Electric, Google, Honeywell, Itron, Lenovo, LG Electronics, Microsoft, Motorola, NETGEAR, Nokia, Northrop Grumman, OPPO, Rockwell Collins, Sagemcom, Samsung, Schneider Electric, Sierra Wireless, Sonos, Sony, Technicolor, Telit, Tesla, TP-Link, VIVO, and Xiaomi. | ||||||
| VIAV VIAVI SOLUTIONS INC. |
Named | — | FY 2026-06-27 | — | Active | 10-K 2026-08-13 |
Examples of our customers include Advanced Micro Devices, Inc., América Móvil, AT&T Inc., British Telecom Openreach, Ciena, Cisco Systems, Inc., Deutsche Telekom AG, Ericsson, Lumen Technologies, Inc., Nokia Corporation and Verizon Communications Inc. | ||||||
Named as competitors
Companies this filer names as competitors.
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