Blackbird Guitars is a Californian manufacturer founded in 2005, that make carbon fibre instruments. Carbon fibre as a material for making chordophones is very good because it is light, strong and not affected by temperature or humidity; you even end up with a waterproof instrument - (except for the metalwork). The process itself is interesting too, because the whole thing including both sides of the body and the neck are made as one piece in a single process, but on the downside if you order from the factory there is an 8 week wait while they grow it or something? 

As part of their catalogue they make a carbon fibre Tenor Ukulele which can have a couple of pick-up options fitted if you specify when ordering. 

In 2013 they introduced a Concert Ukulele they called Clara. This though is made from a plant fibre based material that Blackbird invented and called ekoa. They claim it has all of the strength and weatherproof qualities of carbon fibre but is lighter and give a better, more wood like tone.