Firmoscan
Active03330283Private limited companyLondon

CIENA LIMITED

Significant control: Ciena Global Holding, Lp (75–100%), Ciena Global Holding Lp (75–100%)

Companies HouseCompanies House

From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms

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What does Ciena Limited sell?

Registered activity: Other telecommunications activities (SIC 61900). We’re building product and service lists for UK companies. Get this one when it’s ready.

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01

Summary

Generated from filed data · no estimates

CIENA LIMITED is an active private limited company (company number 03330283) incorporated on 10 March 1997, registered in London. Its registered activity is other telecommunications activities (SIC 61900). Accounts are on file at Companies House (full) but not yet parsed into this record.

There are 1,134 companies in other telecommunications activities in London with filed accounts; the median reports net assets of £3,447 and is 9 years old.

02

Ownership and control

2 active · 1 other
  • Ciena Global Holding, Lp
    corporate entity, Scotland · since 17 June 2021
    • owns 75–100% of shares
    • holds 75–100% of voting rights
    • can appoint or remove directors
  • Ciena Global Holding Lp
    corporate entity, Scotland · since 17 June 2021
    • owns 75–100% of shares
    • holds 75–100% of voting rights
    • can appoint or remove directors
  • Ciena Corporation
    corporate entity, Usa (Delaware) · since 6 April 2016 · ceased 17 June 2021
    • owns 75–100% of shares
    • holds 75–100% of voting rights
    • can appoint or remove directors

Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents. Directors and secretaries: see the officers list at Companies House.

03

Key dates

Incorporated
10 March 199729 yrs ago
First accounts due
10 December 199810180 days overdue
Confirmation statement due
24 March 2027in 151 days

Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.

04

Activity

SIC 61900
Other telecommunications activities
Accounts type
Full
05

Financials

No accounts on record

Accounts exist on the register but their figures are not in this dataset yet.

06

Filing and accounts signals

Facts from the register · no rating
  • Incorporated five or more years agoIncorporated 10 March 1997
  • Accounts past their due dateDue 10 December 1998

Neutral facts read from the register and filed accounts, each with its evidence. They are not a rating, a prediction or advice, and may be incomplete or out of date. How each signal is derived.

07

Timeline

Newest first
  1. Confirmation statement duein 151 days
  2. First accounts due10180 days overdue
  3. Incorporated
08

Similar companies in London

Same activity (other telecommunications activities), closest in incorporation date

All companies incorporated on 10 March 1997 · in Mar 1997.

09

Reminders for CIENA LIMITED

Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.

Source: Companies House register, snapshot 2026-08-31. Open Government Licence v3.0. View on Companies House. Methodology · About · Markdown.

This information comes from public filings and our automated processing of them. It may contain errors, be incomplete or be out of date, and is not advice or a credit reference. Check the official record before relying on it. Terms · Privacy · Report an error (corrected within one working day).