The U.S. aircraft register, updated daily
Who holds what · as the FAA records the name

Williams International Company L.L.C.

Holds 2 type certificates (14 models). FAA spelling: Williams International Company L.L.C..

Type certificates 2

E3GLEngine · FJ44-4M, FJ44-3A, FJ33-5A, FJ44-1AP, FJ44-4A, FJ44-2A and 7 more
E00011CHEngine · FJ33-4A-15

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.