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For other uses, see Sonos (disambiguation).
Type Private
Founded 2002 (2002)
Headquarters Santa Barbara, California
No. of locations 4 offices (2014)
Founder(s) John MacFarlane
Craig Shelburne
Tom Cullen
Trung Mai
CEO John MacFarlane
Industry Audio equipment
Products Sonos Wireless HiFi Music System
Employees 1,275
Native client(s) on iOS, Android, Windows, Mac

Sonos is an American consumer electronics company founded in 2002 by John MacFarlane, Craig Shelburne, Tom Cullen and Trung Mai. The company makes a variety of wireless audio products.


Sonos was founded in 2002.[1]

As of December 2013, the company is estimated to have raised $118 million in venture funding, including a $25 million round in December 2013.[2] Its investors include Kohlberg Kravis Roberts, Redpoint Ventures and Elevation Partners.[2]


The company offers a wide range of products, including the Sonos Wireless HiFi System creates a dedicated local Sonos network through wireless and/or ethernet connections which allows for the streaming of digital audio to any Sonos device on the network.

Multiple Sonos devices in a single household can connect to each other on a proprietary peer-to-peer synchronous mesh network using AES encryption. This network, known as SonosNet, allows audio to be played simultaneously in separate zones. A single ZonePlayer or ZoneBridge must be wired to a network for access to LAN and Internet audio sources when using this feature, or when creating a 3.1/5.1 surround setup.[3][4] SonosNet 2.0 integrates MIMO on 802.11n hardware, providing a more robust connection. Sonos does not implement wake-on-wireless technology, instead requiring that every Sonos player or bridge constantly maintains a wireless connection, even when in standby mode or connected by cable. Sonos devices do not have power buttons. The company claims that each speaker consumes between 4 and 8 Watts in idle or standby mode.[5]


  1. ^ "Company Overview of Sonos, Inc.". Retrieved 3 December 2013. 
  2. ^ a b Nellis, Stephen (3 January 2014). "Top 10 Software/E-Commerce Growth Companies in the Tri-Counties". Pacific Coast Business Times. Retrieved 10 March 2014. 
  3. ^ "Sonos guide to setup options". Sonos. 
  4. ^ "Sonos guide to setup over WiFi". Sonos. 
  5. ^ "Sonos Components Consume Power When Idle". Sonos. 2005-03-16. Retrieved 2012-06-19. 

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