Private company
Okena
Okena is an intrusion detection company based in Waltham, Massachusetts. It was acquired by Cisco Systems on January 24, 2003, for $154M, in an all-stock transaction.2 It was founded in 1999.1 Wikipedia text CC BY-SA 4.0
Last updated Oct 20, 2026.
Overview
See how the biggest companies compare on our leaderboards
Okena is an intrusion detection company based in Waltham, Massachusetts. It was acquired by Cisco Systems on January 24, 2003, for $154M, in an all-stock transaction.2
Corporate structure
Okena is part of a group headed by Cisco. 320 entities, 82 countries on record. Switch between the flow chart and the network, and select any entity to see its details.
- Cisco Wilmington, Delaware, United States
- Okena United States
- Splunk Inc. San Jose, California, United States
- Aironet Wireless Communications Subsidiary · United States
- Cerent Corporation Subsidiary
- Cisco Meraki Subsidiary · San Francisco
- Cisco Systems (China) Subsidiary · Wan Chai, People's Republic of China
- Cisco Systems (Netherlands) Subsidiary · Amsterdam-Zuidoost, Netherlands
- Cisco Systems (Sweden) Subsidiary · Stockholm Municipality, Sweden
- Cognitive Security Subsidiary · Prague, Czech Republic
- InfoGear Subsidiary · California
- IronPort Subsidiary · San Bruno
- Linksys Subsidiary · Milton Keynes
- Navini Networks Subsidiary · Richardson
- NetSpeed Subsidiary · United States
- OpenDNS Subsidiary · San Francisco
- Riverhead Networks Subsidiary · Tel Aviv
- Scientific Atlanta Subsidiary · Lawrenceville
- Selsius Systems Subsidiary · United States
- Sourcefire Subsidiary · Columbia
- SpamCop Subsidiary
- Starent Networks Subsidiary · Tewksbury
- StrataCom Subsidiary · Cupertino
- Tandberg Subsidiary · Lysaker
- Tandberg Telecom Subsidiary · Lysaker, Norway
- Twingo Systems Subsidiary · United States
- Webex by Cisco Subsidiary · Milpitas
- and 285 more
Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.
Subsidiaries and ownership
Parent company
From Wikidata.1
Timeline
- 1999Founded Founded1
Links
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1WikidataOkena on Wikidata
- 2WikipediaOkena on Wikipedia