TESSCO Technologies doesn't supply distributor caps, but it does wear one. The company distributes communications products from about 380 manufacturers. TESSCO sells network systems products (broadband radios, bi-directional amplifiers); base station infrastructure equipment (towers and site hardware, antennas); installation test and maintenance equipment (tools, device repair parts); and mobile devices and accessories. The company also offers training services. TESSCO sells to wireless carriers, as well as wireless product resellers and installers, manufacturers, retailers, government agencies, and others. While 97% of its sales are in the US, the remaining 3% are made in more than 100 countries.