Interesting. Judging from this LinkedIn page [1], Wire Swiss GmbH has been around since at least March 2014, and has between 50-200 employees [2]. My guess: they renamed Zeta Project to Wire, but didn't want to wait with the announcement until it's updated in the registry?
Still not sure what's up with the two governing laws.
[1] https://itunes.apple.com/app/wire/id931134707?mt=12
[2] http://www.hrazg.ch/webservices/inet/HRG/HRG.asmx/getHRGHTML...