Who holds what · as the FAA records the name

Napier D. and Son LTD.

Named as the FAA publishes it on its approvals.

Holds 1 type certificate (8 models). FAA spelling: Napier D. and Son Ltd..

Type certificates 1

E-305Engine · Eland 507, Eland 504A, Eland 503A, Eland 503, Eland 508A, Eland 504 and 2 more

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.