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The 42 largest aerospace and defence companies in Massachusetts

Tamtam tracks 42 aerospace and defence companies headquartered in Massachusetts. This list ranks all of them by number of employees on LinkedIn, led by GE, Sensata Technologies and MIT Lincoln Laboratory. Their median headcount is 83. Half of them were founded in 1976 or later. The most common headquarters are Woburn (4), Boston (3) and Andover (2).

๐Ÿ‡บ๐Ÿ‡ธ Massachusetts42 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
GEge.com

Focus on advancing aviation and energy industries through innovative technologies and solutions shared via specialized aerospace and energy platforms.

Industrial Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Boston 99,488 n/a
2
Sensata Technologiessensata.com

Supplier of sensing, electrical protection, control, and power management solutions enhancing safety, efficiency, and comfort across multiple industries worldwide.

Appliances, Electrical, and Electronics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Attleboro 7,634 n/a
3
MIT Lincoln Laboratoryll.mit.edu

Research and development center applying advanced technology to national security problems, focusing on long-term innovation and rapid prototyping.

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Lexington 4,083 1951
4
Draperdraper.com

A nonprofit engineering innovation company advancing technologies for national security through collaboration with government, academia, and industry to solve complex challenges

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Cambridge 2,932 n/a
5
Mercury Systemsmrcy.com

A technology company pushing processing power to the tactical edge for aerospace and defense missions, enabling innovation and decision superiority worldwide

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Andover 2,300 1981
6
MACOMmacom.com

A semiconductor company with expertise in Data Center, Telecommunication, and Industrial/Defense applications, offering design, manufacturing, and distribution services globally

Semiconductor Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Lowell 2,182 1950
7
Creation Technologiescreationtech.com

Global Electronics Manufacturing Services provider with 14 locations worldwide offering Full Product Development, Manufacturing, Test & Design Services for OEMs in various industries

Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Boston 1,882 1991
8
CIRCOR International, Inc.circor.com

Manufacture engineered flow control products for oil and gas, power generation, industrial, aerospace, and defense infrastructure markets.

Industrial Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Burlington 1,790 n/a
9
Tecomet, Inctecomet.com

Precision manufacturing solutions for medical device, aerospace, and defense industries, ensuring exceptional quality and engineering expertise to bring innovative products to market

Medical Equipment Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Wilmington 1,492 1963
10
Odysseyodysseyconsult.com

An established provider of management, analytical, and technical support services for government and private sectors, offering innovative solutions to complex challenges

Government Administration ๐Ÿ‡บ๐Ÿ‡ธ Wakefield 1,377 1997
11
U.S. Army DEVCOM Soldier Centersc.devcom.army.mil

Innovative science and technology solutions for US Army Soldiers to optimize performance, survivability, mobility, and combat effectiveness through various focus areas

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Natick 1,367 1954
12
Ultra Maritimeumaritime.com

Innovating multi-mission solutions for naval forces worldwide, with cutting-edge technology in sonar, radar, signature management, and naval power systems

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Braintree 1,288 n/a
13
Re:Build Manufacturingrebuildmanufacturing.com

An industrial conglomerate focused on combining technology, operations management, and strategic M&A to revitalize the US manufacturing base

Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Framingham 1,166 2020
14
Vicorvicorpower.com

Designs and manufactures modular power components and complete power systems for computing, industrial, telecom, transportation, aerospace, and defense markets.

Appliances, Electrical, and Electronics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Andover 998 1981
15
STRstr.us

Utilizing technology for innovation, STR focuses on cybersecurity solutions, analytics tools, sensing technology, and safety systems to address complex societal challenges

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ Woburn 991 2010
16
Oasis Systems LLCastrion.us

This company is now inactive Follow us at Astrion for updates on our services and offerings

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Burlington 577 1997
17
Trexontrexon.com

Offers unique connectivity solutions. Withstands tough environments, exacting applications. Provides wide variety of high-performance wire and cable solutions through collective brand strength.

Appliances, Electrical, and Electronics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Boston 525 n/a
18
Tech Etchtechetch.com

Specializing in manufacturing precision thin metal components, flexible printed circuits, and EMI/RFI shielding for aerospace, military, medical, telecommunication, and electronics industries

Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Plymouth 270 1964
19
Busekbusek.com

The company develops and manufactures propulsion systems and electronic solutions for spaceflight, specializing in five propulsion technologies for various spacecraft

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Natick 159 1985
20
Kinetic Engine Systemskineticengines.com

A global manufacturer of ultra-complex aerospace engine components, specializing in all major engine product categories, known for high quality manufacturing and customer collaboration

Aviation and Aerospace Component Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Southwick 105 n/a
21
Segue Manufacturing Services | ElectroMech, Cable & Harness, PCBA | USA, Mexico & China Solutionssegue-mfg.com

Global contract electronics manufacturer specializing in electro-mechanical integration, cable assembly, and engineering services for high-reliability industries, with facilities in USA and China

Appliances, Electrical, and Electronics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Billerica 83 1991
22
Ultra Electronics Ocean Systemsultra-os.com

Global provider of underwater and surface solutions for government customers Specializing in undersea defense, acoustic countermeasures, sonar systems, and radar solutions

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Braintree 78 1952
23
Advance Mfg. Co., Inc.advancemfg.com

This company specializes in precision machining, welded fabrication, and assemblies for global industries like aerospace, power generation, and military

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Westfield 72 1962
24
Innoventinnovent.com

Engineering and manufacturing company providing innovative solutions to hygiene, aerospace, and industrial clients worldwide Part of Standex International Corporation

Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Wakefield 70 n/a
25
Mide Technology Corporationlinktr.ee

Development of advanced engineering solutions through customer collaboration, transforming innovative ideas from concept to superior final products.

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Woburn 69 1989
26
Ranor, Inc.ranor.com

Leaders in precision components and equipment fabrication and machining, specializing in customized solutions for a variety of industries with a focus on quality and excellence

Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Westminster 65 1956
27
Custom Group USAcustomgroupusa.com

This company offers superior manufacturing services for Aerospace, Medical, Semi-Conductor, and Commercial industries through a team with diverse technological expertise

Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Woburn 59 1969
28
Standex Aerospace & Defensestandexetg.com

Specializing in metal forming technologies, the company designs cost-effective solutions for aerospace, defense, and energy markets through collaborations with industry leaders

Aviation and Aerospace Component Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ North Billerica 58 n/a
29
Remtec, Inc.remtec.com

Specializing in advanced ceramic packaging technology, this company provides mission-critical solutions for military, semiconductor, medical, industrial, and telecom sectors worldwide

Appliances, Electrical, and Electronics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Canton 52 1990
30
Hoppe Technologies, Inc.precinmac.com

Specializing in precision machining of complex components, offering value-added engineering services to simplify designs for manufacturability and lower costs

Aviation and Aerospace Component Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Chicopee 44 1941
31
B&E Groupbegroupllc.com

A company specializing in manufacturing machined components for aerospace, military, and space applications, as well as repairing commercial aerospace engine components

Aviation and Aerospace Component Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Southwick 35 1950
32
Arwood Machine Corporationarwoodmachine,com

Precision manufacturer of machined components and sub-assemblies for aerospace, medical, military, defense, and satellite industries Certified AS9100, ISO9001-2008, and ISO13485

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Newburyport 35 1968
33
Berkshire Industriesberkshireindustries.com

Specializing in machining precision parts for aerospace, defense, semiconductor, and telecommunications industries, utilizing advanced technology and skilled workforce for on-time, high-quality production

Aviation and Aerospace Component Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Westfield 33 1956
34
M&K Engineering, Inc.arch-medical.com

A precision machining company specializing in manufacturing components for the medical and aerospace industry with extensive experience in various materials

Medical Equipment Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Woburn 31 1990
35
Fairview Machinefairviewmachine.us

Provider of precision machining and assembly services for aerospace, medical, and military industries worldwide, specializing in achieving superior surface finishes and exacting tolerances

Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Topsfield 30 1962
36
Advanced Precision Engineeringape10.com

A leading manufacturing provider offering advanced machining, assembly, and logistics support for technology companies worldwide, specializing in tight tolerance and complex programs

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Ipswich 28 1989
37
PATRIOT ARMORpasarmor.com

Industry leader in glass and polymer lamination for architectural, bullet-resistant, and security glazing serving various sectors including government, schools, and commercial buildings

Glass Product Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Lee 26 n/a
38
Photofabrication Engineering Inc.photofabrication.com

A leading provider of engineering and manufacturing solutions for renewable energy, automotive, medical, aerospace, and defense industries, specializing in photochemical etching and metal part production

Industrial Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Milford 25 1968
39
Thermo-Craft Engineering, Inc.thermocraftengineering.com

Veteran-owned manufacturing company in Massachusetts specializing in engineering, fabrication, machining, and welding for Aerospace, Defense, Semiconductor, Medical, and Solar industries

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Lynn 16 1969
40
Accion Systemsaccion-systems.com

The company specializes in reinventing propulsion for New Space by creating a more efficient ion thruster called the Tiled Ionic Liquid Electrospray engine

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Charlestown 14 2014
41
Bay State Machine Cobaystatemachine.com

A provider of quality manufacturing services for defense, aerospace, medical, commercial, and tooling industries, focused on exceeding customer requirements

Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Easthampton 10 1976
42
Multiscale Systemsmultiscalesystems.com

Innovative industrial solutions utilizing high-performance materials and advanced manufacturing techniques

Engineering Services ๐Ÿ‡บ๐Ÿ‡ธ Worcester 5 2018

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.

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