Who holds what · as the FAA records the name

Avionix

Named as the FAA publishes it on its approvals.

Approved to make 6 classes of equipment. FAA spelling: Avionix.

Equipment approvals technical standard order authorisations

2005-08-15TSO-C2D · AIRSPEED INSTRUMENTS · *, 2 ATI Standby Airspeed/Mach Indicator · instruments and avionics

2005-08-15TSO-C95 · MACH METERS · *, *, * · instruments and avionics

TSO-C46 · Maximum Allowable Airspeed Indicator Systems · * · instruments and avionics

TSO-C46A · Maximum Allowable Airspeed Indicator Systems · *, *, * · instruments and avionics

TSO-C10B · Altimeter, Pressure Actuated, Sensitive Type · * · instruments and avionics

TSO-C95 · Mach Meters · *, *, * · other and general

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.