Skyron
Slasher Products
Slick
Smiths Industries INC
Socata
Solar
Spacecraft ENGR
Speidel
Sperry
Sperry Flight Systems
Sperry Rand
Staco
Standard Motor Products
Standard Precision
Step Chek
Stewart Warner
Stormscope
Stratopower
Sumitomo Precision Products
Sun Electric Corporation
Sunair Electronics, Inc.
Sundstrand
Superior Air Parts
Superior Labs
Survival
SW
Swift, Globe, Temco, Univair
Symbolic Displays Inc
Talley Industries Elapsed
TCI
TE Technology
Teledyne Avionics
Teledyne Continental
Telegartner
Telex
Tempest
Terra
Texas Aeroplastics
Texas Instruments
Textron
The Liquidometer Corp.
Thomas A. Edison
Thompson
Thordarson
Timken
Top Tellite
Torrington
Toshiba
Trans-Cal Industries
Transco
Trimble
Trintec
Triplett
Trivec-Avant Corporation
Troll Avionics Inc.
TRW
U.S. Gauge Co.
UMA
Unison
United Instruments
Universal Aircraft
Universal Avionics
Universal Corp
Universal Electric Co
Universal Navigation Corp
Val Avionics
Vans
Varga Enterprises
VDO
Velcon
Vickers
Victory Corp
Viking
Vision Microsystems
Visual Instruments
VOR
Wag-Aero
Wakmann
Walter Kidde & Company
Wamco
Waypoint
Weldon
Wells
Wemac Co.
Westach
Westberg
Western Filter Corporation
Westinghouse
Weston
Wheeling
Whelen
White Rodger
Wilcox
Wing Walk Compound
Winter
Wisco
Wood Electric Co.
Woodward
Wulfsberg Electronics INC
Wultrad
