Office for Foreign Relations and Information 

Australia

• Australian Secret Intelligence Service (ASIS)
• Australian Security Intelligence Organisation (ASIO)

Bulgaria

• National Intelligence Service
  (Nacionalna Razuznavatelna Sluzhba, NRS)

Canada

• Canadian Security Intelligence Service (CSIS)

Czech Republic

• Military Intelligence
  (Vojenské zpravodajství, VZ)
• Office for Foreign Relations and Information
  (Úřad pro zahraniční styky a informace, ÚZSI)
• Security Information Service
  (Bezpečnostní informační služba, BIS)

Denmark

• Security Intelligence Service
  (Politiets Efterretningstjeneste, PET)

Estonia

• Security Police Board
  (Kaitsepolitseiamet)

Finland

• Security Police
  (Suojelupoliisi, SUPO)

Germany

• Federal Intelligence Service
  (Bundesnachrichtendienst, BND)
• Federal Office for the Protection of the Constitution
  (Bundesamt für Verfassungsschutz, BfV)

Great Britain

• Government Communications Headquarters (GCHQ)
• Secret Intelligence Service (SIS, MI6)
• Security Service (MI5)

Greece

• National Inteligence Service (NIS)

Hungary

• Information Agency
  (Információs Hivatal, IH)
• National Security Office
  (Nemzetbiztonsági Hivatal, NBH)

Israel

• Institute for Intelligence and Special Operations
  (ha-Mossad le-Modi'in u-le-Tafkidim Meyuhadim, MOSSAD)

Italy

• Intelligence and Democratic Security Service
  (Servizio per le Informazioni e la Sicurezza Democratica, SISDE)

Jordan

• General Intelligence Department
  (Da'irat al-Mukhabarat al-'Amma)

Lithuania

• State Security Department
  (Valstybes Sauguro Departamentas, VSD)

Netherlands

• General Intelligence and Security Service
  (Algemene Inlichtingen- en Veiligheidsdienst, AIVD)

New Zealand

• Security Intelligence Service (SIS)

Norway

• Police Security Service
  (Politiets sikkerhetstjeneste, PST)

Poland

• Foreign Intelligence Agency
  (Agencja Wywiadu, AW)
• Internal Security Agency
  (Agencja Bezpieczeństwa Wewnętrznego, ABW)

Portugal

• Security Intelligence Service
  (Serviço de Informaçőes de Segurança, SIS)

Romania

• Foreign Intelligence Service
  (Serviciul de Informaţii Externe, SIE)
• Romanian Intelligence Service
  (Serviciului Român de Informaţii, SRI)

Russia

• Federal Security Service
  (Federal'naya sluzhba bezopasnosti, FSB)
• Foreign Intelligence Service
  (Sluzhba vneshney razvedki, SVR)

Serbia

• Security Information Agency
  (Bezbednosno-informativna agencija, BIA)

Slovakia

• Slovak Information Service
  Slovenská informačná služba (SIS)

Slovenia

• Slovene Intelligence and Security Agency
  (Slovenska obveščevalno-varnostna agencija, SOVA)

South Korea

• National Intelligence Service (NIS)

Spain

• National Intelligence Centre
  (Centro Nacional de Inteligencia, CNI)

Sweden

• Security Service
  (Säkerhetspolisen, SÄPO)

Switzerland

• Strategic Intelligence Service
  (Strategischer Nachrichtendienst, SND)

Turkey

• National Intelligence Organization
  (Milli Istihbarat Teskilati, MIT)

Ukraine

• Security Service of Ukraine
  (Sluzhba bezpeky Ukrayiny, SBU)
• Foreign Intelligence Service of Ukraine
  (Sluzhba Zovnishnioyi Rozvidky Ukrayiny, SZRU)

USA

• Central Intelligence Agency (CIA)
• Defense Intelligence Agency (DIA)
• Federal Bureau of Investigation (FBI)
• National Geospatial Intelligence Agency (NGA)
• National Reconnaissance Office (NRO)
• National Security Agency (NSA)

Note: It is not a complete list, however, it is continually updated.