I'm having a very hard time deciphering what is said in this picture taken in 1938 of Hitler speaking at the Hotel Imperial in Vienna. All I can read is "Die ____ grüßen den Führer". I think the word I can't decipher is some compound with "steyr" which is a city in Austria so it seems to fit the context.
The word is Steyrwerke. It was a weapons factory company in Steyr, Austria.
As already answered, this is Steyrwerke.
At the time of the photo, however, the merger to form Steyr-Daimler-Puch AG in October 1934 had already taken place (see text below the lettering).
The previous company name was still well known and is placed in the photo dated from 1938 above the official name.