MBO
MBO International Electronic GmbH
Jena, Germany

MBO (Münchner Büro Organisation) was founded in 1966 by Peter Schmidt and Lorenz Niederleitner and is registered since July 1st, 1967 as MBO Schmidt & Niederleitner GmbH & Co. KG in Deisenhofen near Munich. The company MBO could be called the first company producing calculators in Germany.

Within just 10 years MBO advanced in Germany to the leader of the still young market of electronic calculators and watches with a turnover of 125 million German Mark. JENOPTIK AG - a German Hightech company - purchased MBO in September 1994 and distributes calculators and other office products still under the MBO label.

Source : Joerg Woerner, Datamath Calculator Museum