Wren Industries, but
from:
http://www.wrenindustries.com/silentpart.html
'Climbing', August 1, 1999 by Greg Aitkenhead
'Mark Blanchard, the Silent Partner¹s inventor and original manufacturer, delayed production after facing the ogre of product liability and in 1996 licensed the patent to Rock Thompson of Rock Exotica. Rock Exotica already produced the Soloist and Solo-Aid, two popular solo-belay devices, and the Silent Partner would have rounded out the lineup. In 1997, however, Petzl absorbed Rock Exotica and wanted nothing to do with solo-belay gizmos. Thompson organized another company, Wren Industries, which now produces all three solo devices.'
nathan (just stumbled across this) sweet