I knew Cerberus went around buying up every gun manufacture they could find a few years back, Savage Arms is partnered with H&R and a few others, and Benelli / Stoeger / whatever else are grouped up. But I was clueless about this. I can't even do a search for RWS guns without it coming up as UMEREX.
"Welcome to the Umarex USA Media and Press Page, your source of cutting edge-information about airguns offered by Umarex USA and marketed under the brands of Walther, RWS, Hämmerli, Beretta, Smith & Wesson, Colt, Magnum Research, H&K, Browning, RAM, Tactical Force, Makarov, Combat Zone, Elite Force, and Ruger®."
At first I thought they were just a marketing company for the firearms manufactures, but "offered by Umarex USA and
marketed under the brands of"...

AND:
http://www.umarexusa.com/pages/aboutumarex.aspx