SSH Communications Security' is a Finnish company that is based in Helsinki

Helsinki

Helsinki is the capital and largest city in Finland. It is in the region of Uusimaa, located in southern Finland, on the shore of the Gulf of Finland, an arm of the Baltic Sea. The population of the city of Helsinki is , making it by far the most populous municipality in Finland. Helsinki is...

 and was founded by Tatu Ylönen in 1995. It is known as the original developer of the Secure Shell

Secure Shell

Secure Shell is a network protocol for secure data communication, remote shell services or command execution and other secure network services between two networked computers that it connects via a secure channel over an insecure network: a server and a client...

 protocol and it currently has about 55 employees. The company's current CEO

Chief executive officer

A chief executive officer , managing director , Executive Director for non-profit organizations, or chief executive is the highest-ranking corporate officer or administrator in charge of total management of an organization...

 is Tatu Ylönen. The biggest shareholders are Tatu Ylönen, Assetman Oy, and Tero Kivinen.

SSH Communications Security has been listed on the Helsinki Stock Exchange

Helsinki Stock Exchange

The Helsinki Stock Exchange is a stock exchange located in Helsinki, Finland. Since 3 September 2003 it has been part of OMX, referred to as OMX Helsinki . Since NASDAQ's acquisition of OMX in February 2008, the official name of the Helsinki exchange has been NASDAQ OMX Helsinki.- History :The...

since 2000.