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  7. Middle River Aerostructure Systems (MRAS)
Middle River Aerostructure Systems (MRAS) logo

Middle River Aerostructure Systems (MRAS)

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Middle River, MD 21220
410-682-1500
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At a glance

Employee size
501-1,000
Organization type
Public Company
Headquarters
Middle River, MD
Founded
1929

About

Rooted in Middle River since Glenn L. Martin opened the Baltimore-area aircraft plant in 1929, Middle River Aerostructure Systems (MRAS) designs and manufactures complex aerostructures, including nacelle systems and specialized airframe components. Its 2-million-square-foot Chesapeake Bay facility carries more than 95 years of civil and military aircraft heritage and now supports aerospace customers from design and production through product service. MRAS, part of ST Engineering since 2019, also operates an FAA/EASA Part 145 repair station for nacelle maintenance, repair and overhaul.

Capabilities and markets

Products

Manufacturing processes

Materials worked

Service offerings

Economic activities

End markets served

Directory supply chains

Classification

NAICS codes

Certifications and registrations

Certifications

  • AS 9100 Rev. D

  • AS9110C

  • ISO 14001

  • FAA 145

  • EASA 145-6726

  • NADCAP NDT

  • NADCAP Composite

  • M1200 Approved Processor List

    Compliance program

  • FAAPART145

    Quality certification

  • EASAPART145

    Quality certification

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  • CPI Aerostructures, Inc logoCPI Aerostructures, IncFounded in 1980 by Arthur August, a 25-year Grumman veteran, CPI Aerostructures has grown from a technical consulting firm into a publicly traded aerospace manufacturer. Its nearly 300 employees work from a 171,000-square-foot Edgewood facility supporting U.S. military and commercial aircraft programs, with a notable record of delivering more than 6,000 UH-60M Black Hawk gunner-window assemblies to Sikorsky since 2010.EDGEWOOD, NY
  • USM Aerostructures, Corp logoUSM Aerostructures, CorpUSM Aerostructures, Corp. is a U.S. aerospace manufacturer and integrator specializing in sheet-metal components and assemblies that become part of aircraft structures, cabins, and fuselages. Since 2000, the small minority-owned company has supplied production parts for military platforms and commercial airliners, including spare parts for the CH-47 Chinook. Its two AS9100-certified facilities provide more than 40,000 square feet of manufacturing space, while its aerospace fusion-welding process is NADCAP-PRI certified.332313WYOMING, PA
  • Mac Machine Company, Inc logoMac Machine Company, IncFounded in Baltimore in 1976, Mac Machine Company manufactures precision components and assemblies, originally for aerospace customers and now also for commercial aircraft, defense, and medical sectors. It operates a 35,000-square-foot Baltimore facility with 60 employees and describes more than 150 years of combined manufacturing experience. The company is known for precision machining and integrated production services, including work on complex aerospace housings.BALTIMORE, MD
More manufacturers in Maryland

Contact information

Website

mras-usa.com

Emails

  • MRAS.ContactSupport@mras.com
  • MRAS.Warranty@mras.com

Phone numbers

  • 410-682-1500
  • 410-682-1230

Social

Locations

Middle River Aerostructure Systems (MRAS) location map for 103 CHESAPEAKE PK PLAZA

103 Chesapeake Pk Plaza

Middle River, MD 21220

Baltimore County

Get directions
Middle River Aerostructure Systems (MRAS) location map for 103 CHESAPEAKE PK PLAZA

103 Chesapeake Pk Plaza

Baltimore, MD 21220

Baltimore County

Get directions
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Directory source

Source
mras-usa.com
Updated
Sep 2026