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 | | B.B.S. Bauer's Buildings Services GmbH | Berlin |
 | | B.B.S. Bauer's Buildings Services GmbH | Berlin |
 | | B.B.S. Bauer's Buildings Services GmbH | Berlin |
 | | B.B.S. Bauer's Buildings Services GmbH | Berlin |
 | | B.B.S. Bauer's Buildings Services GmbH | Berlin |
 | | B.B.S. Bauer's Buildings Services GmbH | Berlin |
 | | B.B.S. Bauer's Buildings Services GmbH | Berlin |
 | | B.B.S. Bauer's Buildings Services GmbH | Berlin |
 | | B.B.S. Bauer's Buildings Services GmbH | Berlin |
 | | B.B.S. Bauer's Buildings Services GmbH | Berlin |
 | | B.B.S. Bauer's Buildings Services GmbH | Berlin |
 | | B.B.S. Bauer's Buildings Services GmbH | Berlin |
 | | Rhomberg Sersa Rail Group | Berlin, Dresden, Halle (Saale), Rostock, Spremberg |
 | | Drees & Sommer SE | Stuttgart, München, Frankfurt am Main, Köln, Hamburg, Leipzig, Berlin |
 | | DIS AG | Berlin |