SIS

The initials SIS may stand for:

Intelligence & security agencies

* Secret Intelligence Service, UK intelligence agency, also known as "MI6";
* Australian Secret Intelligence Service;
* Canadian Security Intelligence Service;
* New Zealand Security Intelligence Service;
* Slovenská informačná služba, Slovak Intelligence Service;
* Special Intelligence Service, a secret FBI intelligence agency operating in South America during World War II;
* Schengen Information System, used by European police forces;
* Signals Intelligence Service, the former United States Army codebreaking division;
* Information and Security Service of the Republic of Moldova;
* Serviços de Informações de Segurança, the Portuguese intelligence agency.

cience

*Small intestinal submucosa, a common, non-immunogenic material used in several clinical applications.
*Second-impact syndrome, a rare, deadly condition in which the brain swells as the result of a concussion received before symptoms from another concussion have gone away.
* Styrene-Isoprene-Styrene.

Business

* Sales Information System, provides Sales reports, transaction available also in S

Technology

* .SIS (filename), the filename extension for installation package files for the Symbian OS operating system.
* Saline Infusion Sonography, also called hysterosonography or sonohysterography, a technique for ultrasonic examination of the uterine cavity.
* Schwerionensynchroton, the heavy ion synchrotron at the GSI research facility in Darmstadt, Germany.
* Single Image Stereogram, another name for a Single Image Random Dot Stereogram.
* Safety instrumented system or safety instrumentation system
* Satellite Information Services.
* Satellite Interceptor System.
* Schengen Information System, a database used by several European countries for border security and law enforcement.
* Selective Inverted Sink, a device that protects crops from frost.
* Sensoric Infeed System, infeed process in offset presses.
* Sequential Importance Sampling.
* Shimano Index Shifting, (as compared to friction shifting).
* Silicon Integrated Systems.
* Single Instance Store, a system for coalescing identical object instances to save space.
* Strategic information system, an information system to support enterprises' strategy.
* Student Information System.
* Superconductor-Isolator-Superconductor Mixer for High frequency heterodyne receivers (over 100 GHz).

Organizations

* SIS International Research.
* Schlumberger Information Solutions.
* Sisters in Islam, an organization based in Malaysia
* Swedish Standards Institute, formerly "Standardiseringskommissionen i Sverige".

chools

* School of International Service at American University, Washington, D.C.
* Seoul International School, an international school in Seoul, Korea.
* Shekou International School, an International school in Shekou, China
* Singapore International School, an international school in Hong Kong, China.
* Stockholm International School, an international school in Stockholm, Sweden.
* Surabaya International School, an international school in Surabaya, Indonesia.

ee also

*Sis