English abbreviations from ceef to cek
- CEEF (California Environmental Education Foundation)
- CEER (Center for Earthquake Engineering Research, University of Buffalo)
- CEF (Westover ARB/Westover Metropolitan Airport)
- CEFA (Cockpit Emulator for Flight Analysis)
- CEFF (Colorado Environmental Film Festival)
- CEFIC (Conseil Européen des Fédérations de l'Industrie Chimique (European Chemical Industry Council)
- CEFO (Combat equipment fighting order (webbing contents))
- CEG (Combat Evaluation Group)
- CEGB (Central Electricity Generating Board)
- CEGEP (Collège d'enseignement général et professionnel (French, "College of General and Vocational Education"))
- CEH (Chelinda Airport)
- CEHI (Compensatory Education Home Instruction)
- CEHS (Center for Environmental Health Sciences)
- CEI (Competitive Enterprise Institute)
- CEIBS (China Europe International Business School)
- CEID (Computer Engineering & Informatics Department)
- CEIT (Center of Excellence for Information Technology)
- CEJ (Chernihiv Shestovitsa Airport)
- CEK (Chelyabinsk Balandino Airport)