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  7. Stellant Systems
Stellant Systems logo

Stellant Systems

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Melville, NY 11747
310-517-6000
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At a glance

Employee size
501-1,000
Organization type
Privately Held
Headquarters
Melville, NY
Founded
2021

About

Built on aerospace and defense work dating to 1932, Stellant Systems manufactures critical spectrum and RF power-amplification products for space, defense, medical, scientific and industrial applications. Established in 2021 from the former L3Harris Electron Devices and Narda Microwave-West businesses, the company now has approximately 1,100 employees across five domestic manufacturing facilities. Its Torrance and Williamsport operations include substantial production and test capabilities, with facilities certified to ISO 9001 and AS9100 standards.

Capabilities and markets

Products

Manufacturing processes

Service offerings

Economic activities

End markets served

Energy segments

Other (Energy)

Directory supply chains

Classification

NAICS codes

Certifications and registrations

Certifications

  • ISO 9001:2015

  • AS9100:2016

  • AS9100:2022

  • DCMA Certified

  • MIL-STD Test Programs

    Compliance program

Related manufacturers

  • PST Corp logoPST CorpNow operating as a division of Stellant Systems, PST Corp. is known for engineering high-power solid-state RF equipment for demanding military, medical, datalink, and commercial applications. The company develops custom solutions alongside standard designs, with products tested and inspected for dependable service in specialized environments.MELVILLE, NY
  • Narda-MITEQ logoNarda-MITEQWith roots reaching back to Narda’s 1953 founding and MITEQ’s 1971 formation, Narda-MITEQ designs and manufactures RF and microwave components, subsystems, and SATCOM and spaceborne solutions for demanding military and commercial applications. The Hauppauge company is particularly experienced in hardware for space-flight missions, having supplied space hardware for more than 50 years, while also developing custom equipment for specialized requirements. Narda-MITEQ holds AS9100D and ISO 9001:2015 registration, reflecting its focus on high-reliability work.HAUPPAUGE, NY
  • Applied Aerospace & Defense logoApplied Aerospace & DefenseWith more than 120 years of manufacturing heritage, Applied Aerospace & Defense designs and vertically manufactures complex hardware and mission-critical systems for space and defense platforms. Its nationwide operation supports work from rapid prototypes through large-scale production and aftermarket sustainment, with particular depth in spacecraft structures, advanced materials and airborne systems. Applied operates 11 facilities across six states and employs more than 1,300 skilled professionals.CINCINNATI, OH
  • Rodelco Electronics Corporation logoRodelco Electronics CorporationFounded in 1967, Rodelco Electronics Corporation designs and manufactures custom RF and microwave hardware for performance-critical military and aerospace applications. The Ronkonkoma small business brings design-to-specification and build-to-print work together in a 20,000-square-foot facility, where complex microwave assemblies can be fabricated and tested under one roof. Its products have been installed on hundreds of military and aerospace platforms, and the company maintains ISO 9001:2015 and AS9100D:2016 certifications.RONKONKOMA, NY
More manufacturers in New York

Contact information

Website

stellantsystems.com

Emails

  • info@stellantsystems.com
  • sales@stellantsystems.com

Phone numbers

  • 310-517-6000
  • 570-326-3561

Social

Locations

Stellant Systems location map for 105 BAYLIS RD

105 Baylis Rd

Melville, NY 11747

Suffolk County

Get directions
Stellant Systems location map for 417 BOSTON ST

417 Boston St

Topsfield, MA 01983

Essex County

Get directions
Stellant Systems location map for 1035 WESTMINSTER DR

1035 Westminster Dr

Williamsport, PA 17701

Lycoming County

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Stellant Systems location map for 3100 LOMITA BLVD

3100 Lomita Blvd

Torrance, CA 90505

Los Angeles County

Get directions
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Directory source

Source
stellantsystems.com
Updated
Sep 2026