Custom Air Boats, Gainesville, FL - Manufacturer code for watercraft hull identification number (USCG)
Kaieteur - Guyana - Airport symbol (OAG)
Kaimata - New Zealand - Seismograph station code, US Geological Survey (SEIS)
Kanaanaeische und Aramaeische Inschriften - A publication (BJA)
Kansas Association of Inventors (EARSL)
Karekare - Language code (ETLW)
Kazan Aviation Institute
Keep America Independent - Defunct (EA)
Key Asset Initiative - Emergency Management (EMA)
Knowledge Access, Inc.
Korean Affairs Institute (EA)
Kuck and Associates Inc. - Provider of performance-oriented compilers and programming tools
Kurzweil Applied Intelligence - Computer science