CEI may refer to:

Companies and organizations

* Competitive Enterprise Institute, a libertarian think-tank * Council of Engineering Institutions, later the

Engineering Council The Engineering Council (formerly Engineering Council UK; colloquially known as EngC) is the UK's regulatory authority for registration of Chartered and Incorporated engineers and engineering technician, holding a register of these and providing ...

* Cycle Engineers' Institute, a screw thread pattern, see

British Standard Whitworth British Standard Whitworth (BSW) is an imperial-unit-based screw thread standard, devised and specified by Joseph Whitworth in 1841 and later adopted as a British Standard. It was the world's first national screw thread standard, and is the basis ...

Episcopal Conference of Italy The Italian Episcopal Conference ( it, Conferenza Episcopale Italiana) or CEI is the episcopal conference of the Italian bishops of the Catholic Church, the official assembly of the bishops in Italy. The conference was founded in 1971 and carrie ...

Other uses

Central European Initiative The Central European Initiative (CEI) is a forum of regional cooperation in Central and Eastern Europe, counting 18 member states. It was formed in Budapest in 1989. The body was developed on the basis of earlier experiences with The Alps-Adriatic ...

, a forum of regional cooperation in Central and Eastern Europe *

Chicago and Eastern Illinois Railroad The Chicago and Eastern Illinois Railroad was a Class I railroad that linked Chicago to southern Illinois, St. Louis, and Evansville. Founded in 1877, it grew aggressively and stayed relatively strong throughout the Great Depression and two Worl ...

* Common Electrical I/O, Interoperability Agreements * Corporate Equality Index of US businesses regarding LGBT people * IATA code for Mae Fah Luang – Chiang Rai International Airport, Thailand * Child_sexual_abuse, Child Exploitation Imagery, a category of illegal or harmful online content

Companies and organizations

Other uses

See also