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

Jacobs Aircraft Engine CO.

Named as the FAA publishes it on its approvals.

Holds 3 type certificates (3 models). FAA spelling: Jacobs Aircraft Engine Co..

Type certificates 3

ATC 31 JacobsEngine · LA-1
TC 5E11Engine · Military R-755-7
ATC 75Engine · L-3

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