Michael, the Guardian Platinum canister is made by Lux International. Accordian to Brian, Funeraldirector on here, they contract it's manufacture to the contract manufacturer Kolektor. It is manufactured in Slovenia.
I would definitely avoid it! There have been TONS of issues with this vacuum since it's release. Namely, the leaking paper bags at first, and members on here have reported circuit board failures early on and issues with the machine end hose connector needing replacement. Plus the bag is ridiculously small - while that may be suitable on a BOL Chinese canister selling for $150, definitely NOT acceptable on a TOL canister costing over $2G!
As for what Luxlife said above, one thing you have to realize is that Aerus has a exclusive contract with Lux Internatinoal to supply them with the vacuum, & Aerus has exclusive rights to sell only it's version in North America. Everywhere else, Lux International is allowed to sell. Back a few years ago, another brand, Sauber, tried to take the same canister with the Lux International hose/wand/powerhead & attachments to the VDTA to gather interest in selling in North America. It never came to be, so Aerus probably threatened legal action.