Knolly do some pretty nice aluminum work. At this point the entire line is alloy except for a carbon model of the Warden. Check out the one piece chainstay on the Podium, or the heavily shaped seat-tube on the Fugitive. Noel has been playing with varying tube shape and wall thickness within the shaping for a few years. There are still places that do amazing alloy work, but they now seem to be be smaller more boutique Taiwanese fab shops as opposed to the larger volume concerns such as Kinesis.