CSIRO is an Australian government research agency with a long history.
Siromath, a commercial spinoff, had a binary redistribution license
for Unix. The Siromath Unix was called SIRONIX.
The Australian Unison computer was sold with SIRONIX.
Siromath was also going to provide a version of Unix for
the DCR/CSIRONET workstation. At some point they switched to
a port of System V/68 from Neology/Softway. Does anyone know why?
Or if the CSIRONET workstation got beyond the prototype stage? Did
it get cancelled when CSIRONET was privatised?
For more background notes see
https://github.com/jonathangray/csiro-unix