FRA = Försvarets Radio Anstalt (Defence Radio Organization).
http://www.fra.se/ (there is a English translation)
Formed during the second world war. Sweden breaked soon the G-schrieber (Arne Beurling) and red the information through the German tele cables. Through the Operation Stella Polaris get Finnish personnel, equipment and knowledge after the world war.
Today have FRA have around 700 personnel and a cooperation with consultants. FRA build own systems and equipment, and has good connextions with several organisations in other contries.