- Afghanistan
- Khedamat-e Etelea'at-e Dawlati (Upphört)
- Albanien
- Sigurimi (Upphört)
- National Intelligence Service (NIS/SHIK)
- Argentina
- Central Nacional de Inteligenzia (CNI)
- Bosnien och Hercegovina
- Agencija za istrage i zaštitu (SIPA)
- Obavještajno-sigurnosna agencija (OSA)
- Brasilien
- Agência Brasileira de Inteligência (ABIN)
- Serviço Nacional de Informações (SNI) (Upphört)
- Colombia
- Departamento Administrativo de Seguridad (DAS)
- Danmark
- Politiets Efterretningstjeneste (PET)
- Forsvarets Efterretningstjeneste (FE)
- Egypten
- General Directorate of State Security Service
- Finland
- Skyddspolisen (Skypo)
- Signalprovanstalten
- Frankrike
- Défense et Sécurité du Territoire (DST)
- Deuxieme Bureau (Defunct)
- Service de documentation Extérieure et de Contre-espionnage (SDECE, 1946–1982)
- Direction Générale de la Sécurité Extérieure (DGSE, 1982–)
- Secretariat General de la Defense Nationale (SGDN)
- Iran
- SAVAK, Shahens säkerhetspolis
- Ministry of Intelligence and Security
- Irak
- General Intelligence Directorate (Upphört)
- Special Security Service (Upphört)
- Italien
- Comitato Parlamentare per la Sicurezza della Repubblica (CO.PA.SI.RE)
- Comitato Interministeriale per la Sicurezza della Repubblica (C.I.S.R.)
- Dipartimento delle Informazioni per la Sicurezza (D.I.S.)
- Agenzia Informazioni e Sicurezza Interna (A.I.S.I.)
- Agenzia Informazioni e Sicurezza Esterna (A.I.S.E.)
- II Reparto - Informazioni e Sicurezza (R.I.S.)
- Anello (servizio segreto) (1950–1980).
- Japan
- Public Security Investigation Agency (PSIA)
- Kina
- Ministeriet för statssäkerhet (MSS / Guoanbu)
- Kuba
- Directorate General of Intelligence (DGI)
- Revolutionary Armed Forces Intelligence
- Nya Zeeland
- Government Communications Security Bureau
- Security Intelligence Service
- Pakistan
- Pakistan Intelligence Bureau
- Directorate for Inter-Service Intelligence
- Polen
- Urząd Bezpieczeństwa (UB, 1944–1954)
- Służba Bezpieczeństwa (SB, 1956–1990)
- Urząd Ochrony Panstwa (UOP, 1990–2002)
- Agencja Wywiadu (AW, 2002–)
- Agencja Bezpieczenstwa Wewnetrznego (ABW, 2002–)
- Wojskowe Slużby Informacyjne (WSI, 1991–2006)
| - Rumänien
- Departamentul de Informații Externe (DIE)
- Direcția de Informații a Armatei (DIA)
- Serviciul de Informații Externe (SIE)
- Serviciul de Pază și Protecție (SPP)
- Serviciul Român de Informații (SRI)
- Sovjetunionen (SSSR)
- Cheka (1917–1922)
- Gosudarstvennoye Politicseskoye Upravleniye (GPU, 1922–1923)
- Obyedinennoye Gosudarstvennoye Politicheskoye Upravleniye (OGPU, 1923–1934)
- Narodnyi Kommissariat Vnutrennih Del (NKVD, 1934–1946)
- Ministerstvo Vnutrennih Del (MVD, 1946–1954)
- Ministerstvo Gosudarstvennoi Bezopastnosti (MGB, 1943–1953)
- Komitet Gosudarstvennoj Bezopasnosti (KGB; 1954–1991)
- Schweiz
- Nachrichtendienst (SND) https://web.archive.org/web/20031019233445/http://www.vbs.admin.ch/internet/gs/snd/d/dsnd.htm
- Spanien
- Centro Superior de Información de la Defensa (CESID) (–2002).
- Centro Nacional de Inteligencia (CNI) (2002–)
- Sydkorea
- National Intelligence Service (South Korea) (NIS)
- Tjeckien
- Bezpecnostni informacni sluzba (BIS)
- Urad pro zahranicni styky a informace (UZSI)
- Tjeckoslovakien
- Federal Directorate of Intelligence Services (FSZS, Upphört)
- Hlavni Sprava Rozvedky (HSR, Upphört)
- Turkiet
- Milli Istihbarat Teskilan (MIT)
- Jandarma Istihbarat ve Terorle Mucadete (JITEM)
- Ungern
- Államvédelmi Hatóság (AVH)
- Nemzetbiztonsági Hivatal (NBH)
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