List of intelligence agencies

Argentina

 * Central Nacional de Inteligenzia (CNI)

Australia

 * Australian Security Intelligence Organisation (ASIO)
 * Australian Secret Intelligence Service (ASIS)
 * Defence Signals Directorate (DSD)

Brazil

 * Agência Brasileira de Inteligência (ABIN)

Bulgaria

 * Durzhavna Sigurnost (DS)

Canada

 * Canadian Security Intelligence Service (CSIS) http://www.csis-scrs.gc.ca/
 * Communications Security Establishment (CSE)

China, People's Republic of

 * Ministry of State Security (MSS)

Colombia

 * Departamento Administrativo de Seguridad (DAS)

Cuba

 * Directorate General of Intelligence (DGI)
 * Revolutionary Armed Forces Intelligence

Czech Republic

 * Bezpecnostni informacni sluzba (BIS)
 * Urad pro zahranicni styky a informace (UZSI)

Denmark

 * Politiets Efterretningstjeneste (PET)
 * Forsvarets Efterretningstjeneste (FE)

Egypt

 * General Directorate of State Security Service

Estonia

 * Kaitsepolitseiamet

Finland

 * Suojelupoliisi (Supo)

France

 * Direction de la Surveillance du Territoire (DST)
 * Direction Générale de la Sécurité Extérieure (DGSE)
 * Secretariat General de la Defense Nationale (SGDN)
 * Direction du Renseignement Militaire (DRM)

Germany

 * Bundesamt fur Verfassungsschutz (BfV)
 * Bundesnachrichtendienst (BND)
 * Militärischer Abschirmdienst (MAD)

Greece

 * Hellenic National Intelligence Service (NIS)

Hungary

 * Államvédelmi Hatóság (AVH)
 * Nemzetbiztonsági Hivatal (NBH)

India

 * Central Bureau of Investigation (CBI)
 * Intelligence Bureau (IB)
 * Research and Analysis Wing (RAW)

Iran

 * Ministry of Intelligence and Security
 * Ministry of Intelligence of Iran

Israel

 * ha-Mossad le-Modiin ule-Tafkidim Meyuhadim (Mossad)
 * herut ha-Bitachon ha-Klali (Shin Bet)

Italy

 * Servizio Informazioni Generali e Sicurezza (SISDE)
 * Servizio per le Informazioni e la Sicurezza Militare (SISMI)

Japan

 * Public Security Investigation Agency (PSIA)

Jordan

 * General Intelligence Department

Korea, South

 * National Intelligence Service (South Korea) (NIS)

Libya

 * Jamahiriya el Mukhabarat

New Zealand

 * Government Communications Security Bureau
 * Security Intelligence Service

Norway

 * Politiets Sikkerhetstjeneste (PST)

Pakistan

 * Pakistan Intelligence Bureau
 * Directorate for Inter-Service Intelligence

Poland

 * Urzad Ochrony Panstwa (UOP)

Romania

 * Departamentul de Informatii Externe (DIE)
 * Directia de Informatii a Armatei (DIA)
 * Serviciul de Informatii Externe (SIE)
 * Serviciul de Protectie si Paza (SPP)
 * Serviciul Român de Informatii (SRI)

Russia

 * Federalnaya Sluzhba Bezopasnosti (FSB, successor of KGB)
 * Glavnoye Razvedyvatelnoye Upravlenie (GRU)
 * Sluzhba Vneshney Razvedki (SVR)

South Africa

 * National Intelligence Agency
 * South African Secret Service

Spain

 * Centro Superior de Información de la Defensa (CESID) - 2002.
 * Centro Nacional de Inteligencia (CNI) (2002 - )

Sweden

 * Säkerhetspolisen (SÄPO)

Switzerland

 * Nachrichtendienst (SND) http://www.vbs.admin.ch/internet/gs/snd/d/dsnd.htm

Turkey

 * Milli Istihbarat Teskilan (MIT)
 * Jandarma Istihbarat ve Terorle Mucadete (JITEM)

Turkmenistan

 * Committee for National Security (KNB)

United Kingdom

 * Department of Naval Intelligence
 * Government Communications Headquarters (GCHQ)
 * Joint Intelligence Committee (JIC)
 * Secret Intelligence Service (SIS/MI6)
 * Security Service (MI5)

United States

 * Air Intelligence Agency (AIA)
 * Army Security Agency (ASA)
 * Central Intelligence Agency (CIA)
 * Defense Intelligence Agency (DIA)
 * Department of Homeland Security
 * Intelligence Community
 * National Geospatial-Intelligence Agency: formerly the National Imagery and Mapping Agency (NIMA)
 * Federal Bureau of Investigation (FBI)
 * National Reconnaissance Office (NRO)
 * National Security Agency (NSA)
 * Naval Security Group (NSG)
 * Proactive Preemptive Operations Group
 * United States Secret Service (Secret Service)

From Wikipedia, with defunct agencies removed