Mercury Systems is a publicly traded manufacturer of defense electronics equipment. Mercury Systems products are deployed in major defense programs like Aegis, Patriot, Surface Electronic Warfare Improvement Program (SEWIP), Predator drones, and the F-35. According to the company’s 2019 annual report to shareholders, over 95% of the $654 million Mercury made in revenues come from U.S. and international government defense contracts. The same report shows the company relies heavily on subcontracts from Raytheon and Lockheed Martin, which account for 37% of its revenue. For fiscal year 2019, the company lists the F-35, the most expensive Pentagon weapons program, as one of its largest revenue streams.