Verified Nov 2026
Electronics & Software
·
Torrance, California
·
Since 2021
Stellant Systems, Inc. manufactures high-power RF electronic components and subsystems, including traveling-wave tubes, microwave power modules, and xenon ion propulsion systems. The company is headquartered in Torrance, California, was founded in 2021, and has an estimated 1,000-5,000 employees and an estimated revenue band of $250-500M. It is privately held and serves the aerospace, defense, medical, scientific, and industrial sectors. In December 2025, TransDigm Group announced its acquisition of the company.
Stellant Systems, Inc. at a glance
Revenue
$250-500M
Est. band
Employees
1,000-5,000
Founded
2021
Headquarters
Torrance, California
Certifications
AS9100 · ISO 9001
Industries
Automotive
Electric Vehicles
Electronics
Medical
Military & Defense
Industrial Equipment
STABILITY SIGNALS
Established & active
5 years in operation (founded 2021).
Holds AS9100, ISO 9001 certification(s) per public sources.
Overview
Stellant Systems, Inc. manufactures high-power RF electronic components and subsystems, including traveling-wave tubes, microwave power modules, and xenon ion propulsion systems. The company is headquartered in Torrance, California, was founded in 2021, and has an estimated 1,000-5,000 employees and an estimated revenue band of $250-500M. It is privately held and serves the aerospace, defense, medical, scientific, and industrial sectors. In December 2025, TransDigm Group announced its acquisition of the company.
At a glance
Attribute | Detail |
|---|---|
Founded | 2021 |
Headquarters | Torrance, California |
Employees | 1,000-5,000 |
Revenue | $250-500M (estimated) |
Primary capability | Electronics & Software |
Certifications | AS9100 · ISO 9001 |
What Stellant Systems, Inc. makes
The company holds AS9100 and ISO 9001 certifications and offers RF and microwave assembly, ETL testing, system integration, and aftermarket support.
Products and capabilities described on the company's own site include Assembly, Machining, Welding (source: stellantsystems.com).
Certifications
Stellant Systems, Inc. is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
AS9100 — stellantsystems.com
ISO 9001 — stellantsystems.com
Latest developments
2026-09-08 — Stellant Systems Receives U.S. Department of War Defense Production Act Title III Funding to Advance Military Space Communications - Stellant (stellantsystems.com)
2026-09-04 — DoW Invests in Stellant Systems’ TWTAs for Space | Microwaves & RF (mwrf.com)
2026-03-26 — Stellant Systems Wins $20.1M Navy Order for F/A-18 Electron Tubes | Contract Awards (envzone.com)
2025-12-31 — TransDigm Announces Acquisition of Stellant Systems, Inc. - TransDigm Group Inc. (gcs-web.com)
2025-12-31 — Arlington Capital Partners to Sell Stellant Systems, Inc to TransDigm Group for $960 Million - ACP (arlingtoncap.com)
Facilities
Stellant Systems, Inc. is headquartered in Torrance, California. Public sources also reference these locations:
Torrance, California — gcs-web.com
Torrance, CA — stellantsystems.com
Company details
In September 2026, the U.S. Department of War awarded Stellant Systems Defense Production Act Title III funding to advance military space communications. Stellant Systems, Inc. was founded in 2021, has an estimated 1,000-5,000 employees, and is headquartered in Torrance, California. On the LightSource stability read it is rated "Established & active": 5 years in operation (founded 2021). Holds AS9100, ISO 9001 certification(s) per public sources.
Frequently asked questions
What does Stellant Systems, Inc. make?
Stellant Systems, Inc. manufactures high-power RF electronic components and subsystems, including traveling-wave tubes, microwave power modules, and xenon ion propulsion systems. The company is headquartered in Torrance, California, was founded in 2021, and has an estimated 1,000-5,000 employees and an estimated revenue band of $250-500M. It is privately held and serves the aerospace, defense, medical, scientific, and industrial sectors. In December 2025, TransDigm Group announced its acquisition of the company.
Where is Stellant Systems, Inc. headquartered?
Stellant Systems, Inc. is headquartered in Torrance, California (3100 Lomita Blvd, Torrance, California, 90505-5104).
When was Stellant Systems, Inc. founded?
Stellant Systems, Inc. was founded in 2021.
How big is Stellant Systems, Inc.?
Stellant Systems, Inc. has an estimated 1,000-5,000 employees, with revenue in the $250-500M range (estimated).
What certifications does Stellant Systems, Inc. hold?
Stellant Systems, Inc. lists AS9100 · ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
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Last verified Nov 2026. Is this your company? Request a correction.
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