Other
- Transequatorial propagation (TEP), discovered in 1947.
- Tucson Electric Power, currently the main power company in Tucson, Arizona, from when they changed their name in 1979
- Tucson Electric Park, home of the Tucson Sidewinders and Spring Training home of the Arizona Diamondbacks, opened in 1998.
- The Enigma Project a UK Based Indie Band, often shorterned as "TEP", founded in 2002.
- The Equity Project (TEP) charter school in Washington Heights, NY founded in 2009.
- Tivoli Enterprise Portal, an IBM product that serves as an integrated data space for monitoring.
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