Altronics, Inc.
     Data Acquisition, Weather Stations, Reaction Timers, etc.

Altalab Instrument
     Weather stations

Avanti Performance Products
     Ignition specialists - custom built distributors

Competition Dynamics
     Data Acquisition Systems

Computech Systems, Inc.
     Weather stations, data loggers, timers, etc.

DRC Race Car Products
     Dedenbear products

HyperTech
     High performance computer chips for late model cars

MSD Ignition
     Distributors, ignitions, timing and fuel management

Painless Performance Products
     Wiring kits for street and strip

PortaTree Timing Systems
     Timing systems and trees

Splitfire
     Splitfire plugs and wires

TAG Systems
     Weather stations and data logging systems

Taylor Vertex
     Taylor wires, Vertex magnetos

Torque Master Products
     Spark plugs