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

Anderson Greenwood & Company

Holds 2 type certificates (3 models). FAA spelling: Anderson Greenwood & Company.

Type certificates 2

A11SWAircraft · 51, 51A
4A1Aircraft · 14

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.