The launch vehicle for the QB50 Mission has been confirmed as of the 27th of January 2014! The Ex-Alta 1 satellite will launch from a Cyclone 4 rocket (the first launch of the upper stage of this rocket) with 49 other satellites! Alcantara Cyclone Space, a Ukranian space compnay, has a 60 year legacy in designing launch vehicles and providing launch services. To date cyclone space has a launch reliability of 97%. You can find out more about Cyclone Space and the Cyclone 4 here: