Tandberg

Vebjørn Tandberg opened his radio factory in Oslo in 1933, and in the postwar decades the name sat on radios and reel-to-reel tape recorders across Scandinavian living rooms. The parent company collapsed financially in 1978 and the business was broken up. One branch became Tandberg Data, making backup tape drives; another specialised in videoconferencing.

The video branch grew into one of the largest in the world through the 1990s and 2000s, with gear built around SIP and H.323 in boardrooms and hospitals. Cisco bought it in 2010 for a little over three billion dollars, and much of Cisco's meeting-room hardware is still developed in Norway. The calls later moved to Zoom and the browser, but the screens on the wall stayed.