| # | Company | Employees |
|---|---|---|
| 1 |
Gentex Corporationgentex.com
Vertically integrated electronics company specializing in CMOS cameras, vacuum coatings, and glass fabrication for automotive, aerospace, and fire protection industries. |
3,060 |
| 2 | 2,259 | |
| 3 |
Williams Internationalwilliams-int.com
A private company specializing in developing and manufacturing jet engines for military and commercial aircraft applications, fostering innovation and continuous learning |
1,650 |
| 4 | 1,198 | |
| 5 |
L&L Productsllproducts.com
Global engineering company providing customized solutions for sealing, acoustics, vibration reduction, and structural reinforcement across multiple industrial sectors. |
999 |
| 6 |
Acument Global Technologies - North Americafontanagruppoagtna.com
Global provider of fastening and assembly solutions for automotive, industrial, construction, defense, and military sectors, supplying leading manufacturers worldwide |
867 |
| 7 |
Avon Protectionavon-protection.com
Design and supply of advanced CBRN and underwater protective equipment for military, law enforcement, and first responders worldwide. |
592 |
| 8 |
Pratt Millerprattmiller.com
Innovative engineering firm with motorsports roots providing groundbreaking solutions, transforming industries with speed, agility, and expertise for clients' most challenging problems and ideas |
362 |
| 9 |
ARCHarchglobalprecision.com
Precision manufacturing company specializing in cutting tools and components for medical, aerospace, and industrial markets, providing design, prototyping, testing, and customized services |
333 |
| 10 |
Trijicon, Inc.trijicon.com
A leading manufacturer of superior aiming systems for tactical and sporting use, known for innovative tritium and fiber-optic technology, trusted by military and law enforcement |
312 |
| 11 |
Amphenol Borisch Technologiesborisch.com
A leading electronics manufacturer serving military and aerospace industries, specializing in cable assembly, circuit card and flex assemblies, electromechanical integration, and design engineering |
300 |
| 12 |
Ascent Aerospaceascentaerospace.com
Ascent Aerospace provides turnkey production solutions, combining assembly line integration, factory automation, and heritage tooling businesses for aerospace industry leaders |
296 |
| 13 |
E&E Manufacturing Co, Inc.eemfg.com
Engineering and manufacturing partner specializing in stamped and fabricated metal components, offering quality solutions for weight reduction, cost savings, and structural design in various markets |
284 |
| 14 |
Flexfab, LLCflexfab.com
A global elastomeric engineering company specializing in silicone rubber products for automotive, aerospace, and industrial sectors with focus on sustainability and innovation |
278 |
| 15 |
Moeller Aerospacemsha.ke
A leader in precision component supply for Aero and Industrial markets, specializing in complex machining technologies and custom self-locking solutions |
254 |
| 16 |
OneMonroe (Monroe Engineering)monroeengineering.com
A global industrial manufacturing company offering quality hardware solutions to diverse industries, with capabilities including custom manufacturing and vendor managed inventory services |
236 |
| 17 |
Legacy Industrieslegacy-ind.com
Provider of manufacturing solutions for aerospace and automotive industries Specializing in tooling, additive manufacturing, automation, and low volume parts machining with a focus on quality and innovation |
147 |
| 18 |
Baker Industries, a Lincoln Electric Companybakerindustriesinc.com
Supplies tooling, flight hardware, prototyping, and machining services to manufacturers in demanding industries, also offers design and engineering support. |
85 |
| 19 |
C&S Machinecandsmachine.com
Leading contract manufacturer specializing in ultra-precision complex components for Aerospace, Defense, Medical, and other industries Certified in various machining processes |
84 |
| 20 |
Orbion Space Technologyorbionspace.com
Revolutionary plasma propulsion systems for small satellites, increasing spacecraft value and saving on operating costs, with focus on fuel efficiency and high production rates |
69 |
| 21 |
MISTEQUAY GROUPmistequaygroup.com
Precision machining company with extensive experience in complex build to print solutions for aerospace, defense, automotive, and industrial markets Specializing in linear motion systems |
69 |
| 22 |
Classic Turning, Inc.classicturning.com
Precision component machining company for aerospace, medical, defense, industrial, automotive industries Specializes in exotic metals, CNC machining, and metal finishing services |
67 |
| 23 |
Wartech Engineeringwartechengineering.com
A skilled engineering and manufacturing firm specializing in meeting client needs in defense, automotive, commercial truck, truck equipment, and recreational vehicle industries |
65 |
| 24 |
Barron Industriesbarron-industries.com
Aerospace and defense supplier specializing in precision machined castings and assemblies, certified for quality, security, and efficiency in manufacturing processes |
59 |
| 25 |
ORT Tool and Die Corporttool.com
Supplier of custom machines, precision machining, and engineering services to global industries since 1958 Offers a full range of equipment and services |
54 |
| 26 |
Schwab Industries, Inc.schwabind.com
A premier supplier to automotive and aerospace industries, offering quality products and services including prototype, stamping, metal fabrication, and CNC machining |
53 |
| 27 |
SodiusWillertsodiuswillert.com
Provides software solutions to enhance traceability and sharing of engineering data, supporting complex systems engineering and interconnected design toolchains globally. |
53 |
| 28 |
STEEL TOOL & ENGINEERING CO.steeltool.com
Specializing in components for aviation, space, and defense industries, this company offers a complete manufacturing service including sheet metal forming, assembly, welding, and machining |
50 |
| 29 |
JNB Machinery LLC / JNB Machining Companyjnbmach.com
Established in 1991, this manufacturing company specializes in producing aluminum and cast iron automotive components for leading automotive companies worldwide |
44 |
| 30 |
Gaishin Manufacturing, LLCgaishinmanufacturing.com
Family-owned manufacturing facility specializing in precision component production Core values: Integrity, Winning Attitude, Team Player Serving aerospace, medical, automotive industries |
43 |
| 31 |
Anderson Express Inc.andersonexpressinc.com
A Tier 1 supplier specializing in fast-track programs in automotive and defense sectors, offering expertise in casting, machining, assembly, R&D, and partnerships |
37 |
| 32 |
REL, Inc.relinc.com
A manufacturing company specializing in developing cutting-edge technology solutions for Aerospace, Automotive, Oil, and Material Testing industries globally |
29 |
| 33 |
Precision Advanced Machining Co.precisionadvancedmachining.com
Family-owned precision machining company with 84 years of experience providing quality component parts to Aerospace, DOE, Science, Space, Defense industries worldwide |
29 |
| 34 |
Pro-Weldproweldinc.com
A leading manufacturer of specialty fabricated steel products, providing high-quality services to the automotive, defense, and industrial sectors with full-service capabilities |
23 |
| 35 |
CMM OPTICcmmoptic.com
Specializing in precision diamond-turned optical components and opto-mechanical assemblies, offering integrated solutions from prototype to high-volume production |
23 |
| 36 |
ERICH JAEGER USA Inc.erich-jaeger.com
A global leader in designing and manufacturing premium trailer tow connector products for various industries with a focus on durability and performance |
16 |
| 37 |
Jordan Tooljordantool.com
Manufactures machinery at its location in Warren, Michigan, offering high-quality products and innovative solutions to various industries |
13 |
| 38 |
IQ Manufacturingiqmanufacturing.com
A fast-growing company in Auburn Hills, MI providing custom manufacturing solutions for aerospace, defense, automotive, and more Committed to exceptional customer experience |
13 |
| 39 |
John Cockerill Defense AmericajohncockerillDA.com
Specializing in combat vehicle turret solutions, this company in the US subsidiary provides integrated precision lethality products for enhanced mobility, protection, and firepower |
8 |
| 40 |
Covaron Advanced Materialscovaron.com
Innovative advanced materials company in Ann Arbor, MI, focused on developing disruptive and environmentally sustainable solutions for industrial and energy applications |
6 |
| 41 |
Precise Tool & Cutter Grindingptcgrinding.com
Specializing in high-quality tool manufacturing for aerospace industry, utilizing advanced technology and skilled professionals to deliver top-notch products and customer service |
2 |
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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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