What does HAJ stand for?

Haerens Tojhus - NCIC firearms make code (NCIC)

Hajong - Language code (ETLW)

Hajvairy Airlines - Pakistan - ICAO designator (FAAC)

Hanover - Germany - Airport symbol (OAG)

Harris Boat Works, Gloucester, MA - Manufacturer code for watercraft hull identification number (USCG)

Himalayan Association of Japan (XSAL)