A French manufacturer of demodulators for mobile usage. Designs reference devices (such as the dibusb) again for mobile usage, which then are resold by several bigger companies.
LinuxTV includes a driver for their DiB3000M-B, DiB3000M-C/P, DiB3000P, and DiB0700 devices. Currently this driver supports USB devices made by Avermedia, ADSTech, kaiserbaas, TwinHan, Hama, KWorld, Artec, Compro, TerraTec and many more. DiBcom seems to concentrate on DVB-T and ATSC technology.