Thermaltake, Antec, Corsair, OCZ and some Coolermasters among others are just the opposite,when looking at them with the fan up the name would be upsidedown, but basing top or bottom on the way the name is set on the psu case means nothing, the pattern of the mounting holes is what matters.
Check out the hole pattern on most case's without a removable psu mounting plate, you'll see that you would have to turn the Galaxy over in order for the holes to line up.
Many are now adding extra mounting holes ( Like the Stacker ) so that such power supplies can be used by turning them over so that they are not choked for air by having that large fan so close to the case wall.