Asteroid Mining Corporation (The U.K), China National Space Administration (China), Deep Space Industries (The U.S.), European Space Agency (France), Japan Aerospace Exploration Agency (Japan), Moon Express (The U.S.), National Aeronautics and Space Administration (The U.S.), Planetary Resources (The U.S.), Russian Federal Space Agency (Russia), Shackleton Energy Company (The U.S.), SpaceFab.US (The U.S.), Trans Astronautica Corporation (The U.S.), and among others.