Androgen insensitivity syndrome

Active Interface Shoe, a technology featured on most modern Sony Handycams for connecting peripherals

Accounting information system, the system of records a business keeps to maintain its accounting system

Automatic Identification System, a navigation and surveillance system capable of providing information about a ship to others and to coastal authorities automatically

Armée islamique du salut (Islamic Salvation Army), the former military wing of the Islamic Salvation Front in Algeria

The Apples in Stereo

Atlanta International School, a private school located in Atlanta, Georgia, United States

The Ais were a Native American tribe living on the Atlantic coast of Florida, United States which had completely disappeared by the mid-18th Century.

Australian Institute of Sport, an Australian educational institution headquartered in Canberra

Artificial Immune System

Australian Information Service, a former Australian governmental organization, disbanded in 1986

Aeronautical Information Service

American International School, a name common to several schools in a variety of countries

Alarm indication signal, a signal transmitted by a system that is part of a communications link to let the receiver know that some part of the link has failed. Some types of AIS signals are:

Application Interface Specification, a technical specification defined by the Service Availability Forum

Advanced Info Service, Thailand's largest GSM mobile phone operator

Automated information system

Amity International School, a group of schools found in India

Association for Information Systems, an international professional organization

Australian International School, a name common to several schools in a variety of countries

Automated Intercept System, a telecommunications system that typically plays the automated Intercept message error messages in the public telephone system (e.g. "The number you have reached has been disconnected...")

Plural of ai (disambiguation page) or AI (Artificial Intelligence).

American Internet Services, a colocation and ISP based in San Diego, California, United States