The Institute of Electrical and Electronics Engineers (IEEE) is a professional association for electronic engineering and electrical engineering (and associated disciplines) with its corporate office in New York City and its operations center in Piscataway, New Jersey. It was formed in 1963 from the amalgamation of the American Institute of Electrical Engineers and the Institute of Radio Engineers.
Due to its expansion of scope into so many related fields, it is simply referred to by the letters I-E-E-E (pronounced Eye-triple-E), except on legal business documents. As of 2018, it is the world's largest association of technical professionals with more than 423,000 members in over 160 countries around the world. Its objectives are the educational and technical advancement of electrical and electronic engineering, telecommunications, computer engineering, and allied disciplines.
The IEEE traces its founding to 1884 and the American Institute of Electrical Engineers. In 1912, the rival Institute of Radio Engineers was formed. Although the AIEE was initially larger, the IRE attracted more students and was larger by the mid-1950s.
The AIEE and the IRE merged to create the IEEE on 1 January 1963. At that time, the combined group had 150,000 members, 93% in the United States. By 1984 there were 250,000 members, 20% of whom were outside the U.S. Today, IEEE has over 420,000 members in 160 countries, with 44.5 percent outside of the U.S This international growth continues today. The IEEE headquarters is in New York City at 3 Park Ave, but most business is done at the IEEE Operations Center in Piscataway, NJ, first occupied in 1975.