Is Ciena Corp an American company?
Yes — Ciena Corp is an American company.
Ciena Corp is incorporated in Delaware, United States and headquartered in Hanover, Maryland. Its legal-entity record reports no foreign parent — the company is independently American-owned.
The evidence
- Legal name
- CIENA CORP
- Incorporated in
- Delaware, United States
- Registered office
- WILMINGTON, the United States
- Headquarters
- Hanover, Maryland, United States
- Ultimate owner
- None reported (independent)
- Stock listing
- NYSE: CIEN on NYSE
- LEI
- W0CZ7N0GH8UIGXDM1H41
Source: GLEIF, the global Legal Entity Identifier registry · checked Jul 26, 2026. A US headquarters or stock listing does not always mean US incorporation — this page reports what the legal-entity registry actually records.
Ciena Corp: origin questions
Is Ciena Corp an American company?
Yes — Ciena Corp is an American company. Ciena Corp is incorporated in Delaware, United States and headquartered in Hanover, Maryland. Its legal-entity record reports no foreign parent — the company is independently American-owned.
Where is Ciena Corp incorporated?
Ciena Corp is legally incorporated in Delaware, United States, according to its GLEIF legal-entity record.
Who owns Ciena Corp?
Ciena Corp reports no parent company in its legal-entity record — it is independently owned rather than a subsidiary.
Is Ciena Corp traded on a US stock exchange?
Yes — Ciena Corp trades under the ticker CIEN on the NYSE.
See the full Ciena Corp company profile — financials, stock data and trust credentials — or browse the directory of American companies.