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

The Jamieson Corporation

Holds 2 type certificates (2 models). FAA spelling: The Jamieson Corporation.

Type certificates 2

TC 2-584Aircraft · J-1 (Army PQ-8A; and Navy TDC-2)
A3EAAircraft · J-2-L1b

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.