Stellant Systems Inc.

Stellant Systems Inc., doing business as Electron Devices, manufactures and repairs advanced vacuum electron devices—electron tubes, cross-field amplifiers, magnetrons, and microwave components—for defense and civilian federal agencies as a prime contractor (99% of recent awards), competing full-and-open without set-asides. Stellant Systems operates as a division of L3Harris Technologies, a global aerospace and defense contractor, and carries proprietary original-equipment-manufacturer status in electron tube repair and manufacturing. The company is headquartered in Williamsport, Pennsylvania, where all work is performed.

Stellant Systems' customer base is concentrated in naval sustainment and defense logistics. The top five customers by potential value account for 67% of combined potential value, led by the Department of the Navy Naval Supply Systems Command (229 awards, $291.5 million combined potential value) and the Department of the Navy Naval Sea Systems Command (78 awards, $138.9 million). The Department of the Air Force Materiel Command's Air Force Sustainment Center ranks third (43 awards, $38.1 million), with secondary engagement across the Defense Logistics Agency, the Ogden Air Logistics Complex, and the Federal Aviation Administration. The Navy contract rankings by both award count and potential value are aligned, indicating sustained core customer focus on naval weapons systems and Aegis platform sustainment.

Stellant Systems' recent federal award footprint spans 1,611 prime and sub awards totaling $783.6 million combined potential value across 32 customer agencies. Activity has grown modestly in recent years—13 awards in 2022, 15 in 2023, 13 in 2024, and 17 in 2025—with 4 awards (combined potential value $22.9 million) facing completion and recompete within the next twenty-four months. The company earned $596.7 million in obligated dollars across the portfolio (76% of combined potential value), reflecting strong performance capture and fulfillment. The top category concentration sits squarely on core capability: 430 awards under electron tube manufacturing (NAICS 334411), 205 under other electronic component manufacturing, and 49 under electronic equipment repair and maintenance. The top PSC code—electron tubes and associated hardware—accounts for 1,266 awards alone.

Stellant Systems holds multiple Navy indefinite-delivery vehicles anchoring its prime work. The largest is a $77.7 million IDIQ with Naval Supply Systems Command for repair of single-duty, double-duty, and water-cooled cross-field amplifier electron tubes (ultimate completion June 2026), which has generated numerous delivery orders for Aegis weapons system sustainment including a $6.5 million order in December 2023, a $5.9 million order in February 2023, and a $4.7 million order in March 2025. A second vehicle—a $2.94 million single-award IDIQ awarded September 2024 for repair and rebuild of ASR-8 Klystron tubes supporting the Federal Aviation Administration's Airport Surveillance Radar systems (completion September 2027)—has seen nine delivery orders totaling approximately $2.08 million between January 2025 and September 2026. The company also executes work under multiple Navy Basic Ordering Agreements (BOAs) numbered in the tens of millions, including BOA N0010493GA036 (48 task orders), BOA N0010410GA103 (39 task orders, $4.9 million combined value), and BOA N0010415GA105 (27 task orders, $3.6 million combined value).

Representative prime work includes a $7.755 million cost-plus-fixed-fee definitive contract awarded April 2026 by the Air Force Research Laboratory for manufacturable high-power electromagnetic sources for directed energy systems (completion July 2029); a $13.355 million firm-fixed-price definitive contract awarded July 2023 by the Ogden Air Logistics Complex for repair of electron tubes supporting the MWD weapon system (completion September 2028); and a $9.647 million definitive contract awarded September 2025 by Naval Supply Systems Command for electron tube repair and modification (completion October 2030). The company also executes high-volume purchase orders and delivery orders on smaller Navy, DLA, and Air Force vehicles, typically $50,000 to $500,000 per order.

In its subcontractor role, Stellant Systems supplies radio-frequency amplifiers, electron tubes, and specialized microwave components to L3 Technologies, Northrop Grumman Systems Corporation, and HII Mission Technologies Corp on platforms including Navy prototype units, P-3 aircraft maintenance and logistics support, and senior leader network sustainment. The sub footprint is modest (9 awards, 1% of recent total), with most engagement routed through the L3Harris parent company.

Stellant Systems competes in full-and-open procurement across all its prime contracts, with no participation in small-business set-asides (8(a), HUBZone, SDVOSB, WOSB). The company's competitive posture rests on proprietary repair data rights, original-equipment-manufacturer specifications, and specialized manufacturing and testing capabilities for government-qualified electron devices meeting military specifications and qualified products list standards. The consolidated award history and vehicle holdings place Stellant Systems as a mission-critical supplier to naval sustainment and defense logistics, with particular strategic importance to Aegis weapons system and radar modernization programs.