Security Intelligence Service

Security Intelligence Service may refer to:

• Canadian Security Intelligence Service
• New Zealand Security Intelligence Service
• Security And Intelligence Services (India), private security company in India
• Tiger Organization Security Intelligence Service, Liberation Tigers of Tamil Eelam (Sri Lankan Civil War)

See also

• Security Service (disambiguation)
• National Security Service (disambiguation)
• National Intelligence and Security Service (disambiguation)
• Secret Intelligence Service, (MI5)
• Signals Intelligence Service, US Army (WWII)
• Special Intelligence Service, forerunner of the CIA