Lothar Cremer is granted a licence to open up a business as Consulting Engineer for Acoustic Technology in Munich.

Lothar Cremer becomes Director of the Institute for Technical Acoustics at Berlin University; the »Laboratory for Acoustic Technology of Prof. Dr. Cremer« is taken over by his student Helmut A. Müller.

Helmut A. Müller continues to run the Munich office – now, however, under his own name. To the original business area of building acoustics the new areas of industrial soundproofing, noise control in urban planning, and noise control in shipbuilding are added. The firm gradually acquires a reputation extending beyond Germany.

Founding of the »Müller-BBN GmbH« with five partners. The firm »Bolt Beranek Newman Inc.« becomes a partner.

»Bolt Beranek Newman Inc.« sells its shares in the company. The company name is changed to »Müller-BBM«.
The company buys into the »M+P Raadgevende ingenieurs bv« in the Netherlands.

Founding of the BBM Technik GmbH.

M+P Raadgevende ingenieurs bv becomes a wholly-owned subsidiary of the Müller-BBM VuB.

In order to keep up with the rapid growth in the area of measurement software, the »Müller-BBM VibroAkustik Systeme GmbH« is founded.

Takeover of the GERB Akustik Consult GmbH, which is now renamed to BBM GERB Akustik GmbH.

Fusion of the BBM Technik GmbH with the BBM GERB Akustik GmbH to form the »BBM Akustik Technologie GmbH«.

Founding of the »Müller-BBM Scandinavia AB«, based in Gothenburg/Sweden.

Founding of the »Müller-BBM Active Sound Technology GmbH«