Extreme Networks is one of the leading telecommunications equipment manufacturer in the world, founded in 1996. Headquarters in San Jose, California, the United States. The company employs more than 1,300 (2015) people. Main directions of development of the equipment include switching, wireless network  transmission, SDN.

The well-known products by Extreme Networks are Summit series and Black Diamond series switches that run self-developed ExtremeXOS operating system

Website:   http://www.extremenetworks.com/
Linkedin page: https://www.linkedin.com/company/extreme-networks
Facebook profile:   https://www.facebook.com/extremenetworks