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Stellant Systems

Stellant Systems is a manufacturer of critical spectrum and RF/Microwave power amplification products for the space, defense, medical, science, and industrial markets. As a major supplier in the space industry, Stellant specializes in traveling wave tubes (TWTs), traveling-wave tube amplifiers (TWTAs), microwave power modules (MPMs) and electronic power conditioners (EPCs). With over 4,700 space TWTs delivered, Stellant supports commercial, civil, and military satellite and deep space missions, and partners with organizations requiring spectrum and power amplification systems.

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All verified mentions of this organization in source documents.

Stellant Systems has been producing ion thruster systems since the 1990s and has delivered approximately 228 units to date.

CapabilityGeneralValue 4.0Feb 23, 2026Stellant Systems: Heritage-Driven Innovation in Space

Stellant Systems produces subsystems that have been operating on orbit since 1977 on the Voyager mission.

CapabilityGeneralValue 4.0Feb 23, 2026Stellant Systems: Heritage-Driven Innovation in Space

Stellant Systems’ product portfolio includes TWTs, TWTAs, EPCs, LCAMPs, SSPAs, and propulsion technologies.

CapabilityGeneralValue 4.0Feb 23, 2026Stellant Systems: Heritage-Driven Innovation in Space

The acquisition of Comtech PST strengthened Stellant Systems’ internal capabilities for quality, performance, and schedule control.

RelationshipsCapabilityValue 4.2Feb 23, 2026Stellant Systems: Heritage-Driven Innovation in Space

Stellant Systems is extending its solutions into Q-, V-, and W-band frequencies.

CapabilityGrowthValue 3.2Feb 23, 2026Stellant Systems: Heritage-Driven Innovation in Space

Stellant Systems is developing an 8-cm XIP Ion Thruster for small satellite missions.

CapabilityValue 4.2Feb 23, 2026Stellant Systems: Heritage-Driven Innovation in Space

Stellant Systems has delivered thousands of space-qualified components.

RelationshipsCapabilityValue 2.5Feb 23, 2026Stellant Systems: Heritage-Driven Innovation in Space

Stellant Systems has shipped multiple nanoMPM® flight sets including systems supporting Airbus’s OneSat program.

RelationshipsCapabilityValue 4.0Feb 23, 2026Stellant Systems: Heritage-Driven Innovation in Space

Stellant Systems’ heritage in space microwave power technologies spans more than 90 years.

CapabilityValue 2.0Feb 23, 2026Stellant Systems: Heritage-Driven Innovation in Space

Stellant Systems’ space roots trace back to the 1960s with the Hughes Microwave Tube Division and include expertise from L3Harris and other legacy companies.

GovernanceRelationshipsValue 2.0Feb 23, 2026Stellant Systems: Heritage-Driven Innovation in Space

Stellant Systems is the only provider that can fully design, build, integrate, test, and deliver complete space-qualified LCTWTAs in-house.

CapabilityGeneralValue 4.0Feb 23, 2026Stellant Systems: Heritage-Driven Innovation in Space

Stellant Systems manufactures radio frequency (RF) and microwave amplification products.

CapabilityValue 3.0Jan 7, 2026Latest News

TransDigm Group Incorporated will acquire Stellant Systems for $960 million in cash.

RelationshipsFinancialValue 4.5Jan 7, 2026Latest News

Stellant Systems has selected Todd Hansen as Vice President & General Manager of its Williamsport, PA facility.

GovernanceValue 3.0Dec 28, 2023Stellant Selects Todd Hansen as VP and General Manager of the PA Facility

Stellant Systems, Inc. will acquire Comtech Telecommunications Corp.’s Power Systems Technology product line for a total cash purchase price of $40,000,000.

RelationshipsValue 5.0Oct 22, 2023Stellant Systems, Inc. to acquire power systems technology products from Comtech

Stellant Systems designed the Q-band 200 W Downlink TWTA and V-band 200 W Uplink TWTs to serve the high throughput satellite market.

CapabilityGeneralValue 4.0Aug 5, 2022Stellant Systems Unveils New Range for Traveling Wave Tubes for Space Communications
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