Elektrisk Bureau or EB was a Norwegian manufacturer of telecommunication equipment.

It was founded in 1882 and lasted until 1993 when it became part of Asea Brown Boveri (ABB).

The background was that Söderberg, who had started a telephone union in Christiania, felt that Bell System had been charging too high prices.

In 1885 the company was made limited and a year later Akers Mekaniske Verksted became the largest owner.

But during the 1920s when the automatic centrals were introduced, EB lost its leading position.