HLD Europe, a private industrial investment group, agreed to acquire Photonis, a company in the design and production of image intensification tubes and scientific detection systems, from Ardian, a private investment house, for $449m. "Today, we are proud of the path we have taken and are certain that Photonis has all the assets to succeed in its new phase of development. We would like to thank Jérôme Cerisier and the team at Photonis for the partnership over the last ten years and wish them all the best," Philippe Poletti, Ardian France CEO.