National SIGINT & COMSEC Organizations
Australia - Defence Signals Directorate
Canada - Communications Security Establishment
Denmark - Security Intelligence Service
France - Direction Générale de la Sécurité Extérieure
Germany - Government office for Communications Security
Netherlands - General Information and Security Services
New Zealand - Government Communications Security Bureau
Russia - Academy of Federal Agency for Government Communication
Sweden - National Radio Defence Establishment
Ukraine - Security Service of Ukraine
United Kingdom - Government Communications Headquarters
United States - National Security Agency
Updated 09 August 2015