This is the source list for manufacturers of homebuilt airplane and helicopter engine monitors, angle-of-attack indicators, electrical buses, fuel flow monitoring system, glare shield lighting, and more.

Aero Enhancements, Inc.             

Proprietary Software Systems

CO Guardian

Electronics International, Inc.

ExpBus by  Control Vision

Horizon Instruments, Inc.

I-K Technologies

Insight Instrument Corp

J.P. Instruments, Inc. 

PS Engineering, Inc.

Ray Allen Co.

Rocky Mountain Instrument

Shadin

Vision Microsystems, Inc.