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

Artex Engineering

Named as the FAA publishes it on its approvals.

Approved to make 4 classes of equipment. FAA spelling: Artex Engineering.

Equipment approvals technical standard order authorisations

2007-09-28TSO-C91a · EMERGENCY LOCATOR TRANSMITTER (ELT) EQUIPMENT · Emergency Locator Transmitters,C406 series, Emergency Locator... · emergency equipment
2007-09-28TSO-C126 · 406 MHz EMERGENCY LOCATOR TRANSMITTER (ELT) · Emergency Locator Transmitter (ELT), Emergency Locator Transmitter (ELT),... · electric propulsion
2000-02-28TSO-C126 · 406 MHz EMERGENCY LOCATOR TRANSMITTER (ELT) · Emergency Locator Transmitter (ELT), Emergency Locator Transmitter (ELT),... · electric propulsion
1999-07-27TSO-C91a · EMERGENCY LOCATOR TRANSMITTER (ELT) EQUIPMENT · Emergency Locator Transmitter (ELT) · emergency equipment

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.