Question 1

What does Ciena do?

Accepted Answer

Ciena collaborates with customers to unlock the strategic potential of their networks and and change the way they perform and compete.

Question 2

In what sectors does Ciena operate?

Accepted Answer

Ciena operates in Collaboration, Delivery, Optical Communication, Software, Telecommunications.

Question 3

How many companies has Ciena acquired?

Accepted Answer

Ciena has made 18 acquisitions between 1997-2025, with a total disclosed deal value of $5.4B.

Question 4

What companies are owned by Ciena?

Accepted Answer

Companies acquired by Ciena include Nubis Communications, Tibit Communications, Benu Networks, Vyatta, Centina Systems, DonRiver, Packet Design, Cyan, and 10 more.

Question 5

What are Ciena's major acquisitions?

Accepted Answer

Ciena's largest acquisitions include Cyras Systems ($2.6B, 2000), ONI Systems ($1.2B, 2002), Catena Networks ($486.7M, 2004), Cyan ($400.0M, 2015).

Question 6

What is Ciena's largest acquisition?

Accepted Answer

Ciena's largest disclosed acquisition is Cyras Systems for $2.6B (2000).

Question 7

What was Ciena's first acquisition?

Accepted Answer

Ciena's first recorded acquisition was Astracom in 1997.

Question 8

What was Ciena's most recent acquisition?

Accepted Answer

Ciena's most recent acquisition is Nubis Communications, announced September 2025 for $270.0M.

Question 9

What is the average deal size for Ciena acquisitions?

Accepted Answer

The average disclosed deal size for Ciena acquisitions is $771.0M.

Question 10

What is the median deal size for Ciena acquisitions?

Accepted Answer

The median disclosed deal size for Ciena acquisitions is $400.0M. The median is often lower than the average because a few very large deals pull the average up.

Question 11

How much has Ciena spent on acquisitions?

Accepted Answer

Ciena has spent at least $5.4B across its disclosed acquisitions (of 18 total deals; some prices are undisclosed).

Question 12

Which sector has Ciena spent the most on?

Accepted Answer

Ciena has committed the most disclosed capital to Telecommunications companies — about $4.8B across its deals in that sector.

Question 13

What sectors does Ciena usually acquire in?

Accepted Answer

Ciena most frequently acquires companies in Telecommunications, Software, Communications Infrastructure.

Question 14

In which sector has Ciena made the most acquisitions?

Accepted Answer

Ciena has made the most acquisitions in the Telecommunications sector.

Question 15

In which year did Ciena make the most acquisitions?

Accepted Answer

Ciena made the most acquisitions in 2022, with 2 deals.

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