Aerox Oxygen Systems Supplies General, Business, Airline And Miliary Aircraft Signia Aerospace, a portfolio company of Arcline Investment Management, has acquired Aerox Aerospace Group, a supplier of aviation oxygen systems supporting general aviation, business aviation, airline, military, and special mission applications. Aerox designs and manufactures portable and installed aviation oxygen systems, including OEM-installed systems for aircraft manufacturers, TSO-approved oxygen masks, PMA-certified cylinders, regulators, and a range of oxygen accessories.