Alas, no. Simson was a very common name back then.
That being said, Simson in Suhl did have a sales office in Berlin. Found it on the same page
The address Unter den Linden 75/6 refers to the Schulte commercial building, in which Simson probably rented an office. Strategically located in the power district of Berlin, not far away from DWM/Loewe/Mauser's trade offices.
The building was destroyed in WW2.