Stellant Systems Inc.

Stellant Systems Inc., operating as Electron Devices, a subsidiary of L3Harris Technologies, manufactures and repairs advanced vacuum electron devices—electron tubes, cross field amplifiers, magnetrons, and microwave components—as a prime contractor competing full-and-open against federal defense and civilian aviation agencies. The company competes exclusively without set-asides, drawing on its proprietary original-equipment-manufacturer status and specialized repair capabilities to support critical military systems and the Federal Aviation Administration's Airport Surveillance Radar infrastructure.

Stellant Systems' federal footprint centers on vacuum electron device manufacturing, repair, and testing for defense platforms. Representative work includes a $7.755 million cost-plus-fixed-fee definitive contract with the Air Force Research Laboratory (awarded April 2026) for manufacturable high-power electromagnetic sources for directed energy systems, a $13.355 million firm-fixed-price definitive contract with the Air Force Materiel Command Ogden Air Logistics Complex (July 2023) for repair of MWD electron tubes through September 2028, a $9.647 million definitive contract with Naval Supply Systems Command (September 2025) for electron tube repair and modification, and a $2.936 million single-award IDIQ with a civilian federal agency (September 2024 through September 2026) for ASR-8 Klystron tube repair supporting the FAA's Airport Surveillance Radar systems.

Customer concentration reflects Stellant's strategic anchor in Naval supply sustainment. Naval Supply Systems Command leads by potential value at $291.5 million across 229 awards, followed by Naval Sea Systems Command at $138.9 million across 78 awards. Air Force Sustainment Center contributes $38.1 million across 43 awards, and Ogden Air Logistics Complex $32.8 million across 7 awards. Defense Logistics Agency Land and Maritime places 186 awards valued at $16.1 million, primarily small purchase orders for electron tubes. The top five customers account for 67% of combined potential value, with Naval Supply Systems Command and Naval Sea Systems Command together representing approximately 55% of the portfolio's dollar value.

Stellant Systems holds three active indefinite-delivery vehicles: a $77.7 million IDIQ with Naval Supply Systems Command (through June 2026) for cross field amplifier electron tube repair supporting the Aegis weapons system; a $58.4 million IDIQ with Naval Supply Systems Command (through August 2026) for provision of specialized electron tubes, microwave amplifiers, magnetrons, and related components across naval, aircraft, space, missile, and communications systems; and the $2.936 million FAA single-award IDIQ for Klystron tube repair. The top five parent vehicles include Navy indefinite-delivery and basic-ordering-agreement vehicles carrying 67, 39, 38, 29, and 27 task orders respectively. Place of performance is Williamsport, Pennsylvania for substantially all work.

Recent activity shows stable engagement across 2022–2025 (13 to 17 awards per year) with only three awards recorded in 2026 year-to-date as of the source snapshot in May 2026. The recompete cliff presents modest exposure: six awards with ultimate completion dates in the next twenty-four months carry combined potential value of $10 million. The largest completion risk sits with the $7.755 million AFRL directed-energy contract (July 2029) and the $13.355 million Ogden Air Logistics electron-tube repair contract (September 2028), both extending well beyond the two-year window.

Stellant Systems subcontracts to parent L3Harris entities—L3 Technologies, Inc. and L3Harris Nexgen Communications LLC—on radio-frequency amplifier development and repair work, and to Northrop Grumman Systems Corporation on P-3 aircraft maintenance and logistic support. Sub work represents less than one percent of the portfolio by award count, with nine sub-awards identified in recent years.

The vendor's capability footprint is concentrated in electron tube manufacturing (NAICS 334411), with 430 awards across that category, and in related electronic component manufacturing and repair—205 awards in other electronic component manufacturing, 49 in equipment repair and maintenance for electrical and electronic components. The dominant procurement signal is electron tubes and associated hardware, accounting for 1,265 awards and driving PSC coding across the portfolio. Combined potential value stands at $783.6 million, with $591.7 million obligated to date (76% realization).