RB3d is an 11 person french company. They have battery-powered legs designed to help their human controllers lift up to 220 pounds, and will reportedly remain powered for 12.5 miles if the user walks at a normal place. The system looks very similar to the Lockheed Martin HULC exoskeleton.
Hercule is focused on military, rescue, and medical field use. While the suit currently only utilizes reinforcements for the legs, RB3D is developing a mechanized arm component to aid users in directly lifting heavy objects as well. The exoskeleton is scheduled to be marketed as soon as 2014.
Lockheed Martin HULC