SSID Service Set Identifier

A service set identifier, or SSID, is a name used to identify the particular wireless LANs to which a user wants to attach. A client device will receive broadcast messages from all access points within range advertising their SSIDs, and can choose one to connect to based on pre-configuration, or by displaying a list of SSIDs in range and asking the user to select one.So if you set your SSID in WLAN as your "company name", whenever anybody in the range searches for wireless networks your network will be displayed as "company name".