DAC International is an avionics sales and distribution company that specializes in the sale and distribution of sophisticated avionics products, systems and test equipment to the world's airlines, corporate aircraft, modification centers, aircraft manufacturers, special mission, and military markets. DAC has established 392 dealerships around the world for the sale and support of products distributed. The DAC concept was to identify a group of companies that produced quality products but could not justify an in-house international marketing arm. The company has since gained extensive product expertise and market knowledge, which has become the trademark of excellence for the company. Its alliance agreements include: Universal Avionics Systems Corporation, Heads Up Technologies, Garmin AT, Litef, MagnaStar, Sandel, Aero Express, ASI, Barfield, IFR and Linaire. . Terry Armstrong and Michael Crouch organized the company in 1980. The company s headquarters are in Austin, Texas.