I was recently made aware of your Beta request via our IT support staff, I'm an UK architect working within a London practice; and an experienced SketchUp, C4D, Revit, and ArchiCAD user along with other packages.
I wasn't previously familiar with your engine, but am highly impressed taking a few minutes in reviewing your site. It looks far more capable than the recent Vue Lumen RT and Vray RT efforts. Our office would certainly be interested in reviewing your Octane integration with SketchUp and Revit for use in Windows, Mac, and Bootcamped mac environments.
Currently we have no experience of using Octane systems whatsoever, but have varying degrees of experience in using various rendering engines and principles.
Please get do get in touch should you deem us appropriate for any Beta programs, or alternatively I would happily be contacted by your marketing representatives or re-sellers regarding released products.