Only Two Companies Worldwide Produce Gen III Night Vision Tubes at Scale

The entire Western world's supply of Gen III image intensifier tubes — the core component of modern military night vision — comes from exactly two manufacturers: L3Harris in Roanoke, Virginia, and Elbit Systems of America in Roanoke, Virginia (both literally located in the same city). Photonis (now Exosens) in France produces competitive Gen 2+ tubes but does not manufacture true Gen III gallium arsenide photocathode tubes. This duopoly creates a single point of failure in the defense supply chain that affects every NATO nation's ability to fight at night. When demand surges — as it has since the Ukraine war began in 2022 and global defense spending accelerated — these two factories become bottlenecks. Lead times for night vision devices stretch from months to over a year. The U.S. military's own procurement is prioritized, which means allied nations and commercial customers face even longer waits. The Defense Logistics Agency awarded $135 million in contracts to both Elbit and L3Harris in February 2025 just for spare parts for existing monocular night vision devices, indicating the scale of maintenance demand alone. The downstream effects cascade through every level of military readiness. Infantry units deploy with fewer NVGs than their table of organization requires. National Guard and Reserve units receive hand-me-down devices with degraded tubes. Allied nations that depend on U.S.-manufactured tubes cannot increase their night vision inventories fast enough to meet their own defense modernization timelines. The Army's BiNOD program awarded nearly $1 billion split between L3Harris ($466M) and Elbit ($450.6M), but even these massive contracts are constrained by manufacturing throughput. This duopoly persists because manufacturing Gen III tubes requires gallium arsenide photocathode fabrication, high-vacuum microchannel plate assembly, and fiber-optic faceplate bonding — processes that demand specialized cleanroom facilities, rare materials, and decades of institutional knowledge. Building a new Gen III tube factory takes 5-7 years and billions in capital investment. No private company will make that bet without guaranteed government contracts, and no government will guarantee contracts to an unproven manufacturer. The result is a structural lock-in where the barriers to entry are so high that the duopoly is self-reinforcing.