Imperial Beach, California, located in the extreme southwestern corner of the United States

"Ice Brothes", a book by Sloan Wilson

International Baccalaureate, a series of educational programmes run by the International Baccalaureate Organisation

Ibuprofen, a non-steroidal anti-inflammatory drug

Iberia Airlines, the IATA airline designator for which is "IB"

Intelligent Building, new standard of modern builing in the world

InfiniBand, a network technology

Invision Power Board, Internet forum software written in PHP

Informationsbyrån, a defunct intelligence agency within the Swedish Army

Interactive Brokers, an online direct-access stock brokerage firm

Intelligence Bureau of Pakistan, the domestic intelligence organization of Pakistan

Ibid, used in a list of references or sources to direct the reader to the preceding reference

Ib (train station), a station in the Indian Railways system

International Bank, in Liberia

Intelligence Bureau, the domestic intelligence organization of India