| # | Company | Employees |
|---|---|---|
| 1 |
Parker Hannifinparker.com
Global leader in motion and control technologies, enabling engineering breakthroughs for a better tomorrow Diversified company providing vital products for various industries worldwide |
56,000 |
| 2 |
GE Aerospacegeaerospace.com
A global provider of jet and turboprop engines, components, and systems for various types of aircraft, enhancing the world through flight |
37,191 |
| 3 |
The Timken Companytimken.com
Designs and manufactures engineered bearings and industrial motion products, providing innovative, reliable solutions for diverse global industries. |
8,288 |
| 4 |
Parker Aerospaceparker.com
Global leader in research, design, manufacture, and service of aerospace systems and components for various markets worldwide Specializes in flight control, hydraulic, and thermal management technologies |
8,030 |
| 5 |
Battellebattelle.org
A science and technology company solving critical issues through research, development, manufacturing, and services for government and commercial clients worldwide |
6,013 |
| 6 |
Belcanbelcan.com
Global provider of engineering, manufacturing, workforce, and IT solutions for aerospace, defense, automotive, industrial, and private sector clients for over 60 years |
5,115 |
| 7 |
Air Force Research Laboratoryafresearchlab.com
Leading discovery, development, delivery of warfighting technologies for air, space, cyberspace forces, providing unmatched advantage through research, technology, and strategic partnerships. |
3,085 |
| 8 |
NASA Glenn Research Centernasa.gov
The company is a NASA center near Cleveland with world-class facilities for aerospace research and testing, essential to the agency and regional economy |
1,775 |
| 9 |
Materion Corporationmaterion.com
Global provider of high-tech solutions in electronic materials, performance materials, and precision optics, driving scientific breakthroughs and technological advancements worldwide with over 100 years of experience |
1,751 |
| 10 |
Ohio National Guard - The Adjutant General's Department of Ohiolinktr.ee
Established in 1788 as a militia, this organization in Ohio has over 16,000 personnel responding to federal, state, and community missions |
1,109 |
| 11 |
Consolidated Precision Products Corpcppcorp.com
Global network of facilities specializing in high-precision aerospace components & sub-assemblies, dedicated to exceeding customer expectations, developing talent, and continual improvement |
1,108 |
| 12 |
Mission Essentialmissionessential.com
Innovative company providing mission essential solutions to defense, diplomatic, intelligence, law enforcement, and multinational clients with peerless talent and advanced technology |
1,048 |
| 13 |
University of Dayton Research Instituteudayton.edu
A national leader in scientific and engineering research providing innovative solutions in materials, energy, aeropropulsion, and more with integrity and commitment |
855 |
| 14 |
Special Metalsprecast.com
A global leader in high-performance alloy manufacturing, offering solutions to materials challenges through a range of nickel and cobalt alloys worldwide |
780 |
| 15 |
Airborne Maintenance and Engineering Servicesairbornemx.com
A leading MRO service provider offering maintenance services to cargo and passenger airlines with multiple locations and extensive capabilities |
760 |
| 16 |
Air Force Materiel Commandafmc.af.mil
Develops, acquires, and sustains aerospace power for defense through research, acquisition, management, logistics, testing, evaluation, and support services |
717 |
| 17 |
Wright-Patterson Air Force Basewpafb.af.mil
A leading military aviation base in Ohio with a rich aviation history, supporting over 100 units, with extensive logistics, research, and development functions |
717 |
| 18 |
Air Force Life Cycle Management Centeraflcmc.af.mil
This company is responsible for developing, procuring, modernizing, and sustaining Air Force weapon systems and equipment, as well as managing foreign military sales portfolios |
714 |
| 19 |
Applied Research Solutionsappliedres.com
A growing company providing cyber, IT, intelligence, logistics, research, education, program management, engineering, scientific analysis, and space systems support to DoD and Intelligence Community |
695 |
| 20 |
U.S. Air Force Institute of Technologyafit.edu
A leading institution for defense-focused graduate education and research, specializing in aerospace, space, and cyber forces technology, located at Wright-Patterson AFB |
694 |
| 21 |
Gentex Corp.gentexcorp.com
Global leader protective gear solutions enhancing personal protection, situational awareness for defense forces, emergency responders, and industrial personnel. |
621 |
| 22 |
HDT Globalhdtglobal.com
Provider of advanced deployable solutions including shelters, generators, heaters, and air filtration devices for military, government, and commercial customers globally |
608 |
| 23 |
Qnnect (๐ "Connect")qnnectnow.com
A global producer of electronic interconnect solutions for high-density, high-speed applications in various industries including defense, aerospace, semiconductor, and consumer electronics |
427 |
| 24 |
Component Repair Technologiescomponentrepair.com
FAA-certified repair station specializing in gas turbine engine component repairs for aviation, industrial, and marine industries, with a reputation for quality service |
278 |
| 25 |
CFM International (CFM)cfmaeroengines.com
A leading supplier of commercial aircraft engines, offering revolutionary LEAP engines for single-aisle aircraft and powering Airbus and Boeing models worldwide |
241 |
| 26 |
TransDigm Group Inc.transdigm.com
Global leader in designing and supplying highly engineered aircraft components for commercial and military aircraft, focusing on value-driven operations and acquisitions |
233 |
| 27 |
NMG Aerospacenmgaerospace.com
A leading provider of engineering, manufacturing, and logistic solutions for aerospace and industrial markets worldwide, specializing in innovative, integrated solutions |
201 |
| 28 |
DRT Holdings, LLCdrtholdingsllc.com
Manufacturer and supplier of precision tools, systems, and components in metal packaging, aerospace, and precision machining industries, with a focus on quality and reliability |
196 |
| 29 |
Cablecraft Engineered Motion Controlscablecraft.com
A market leader in designing and manufacturing high-performance motion control products for various industries, known for quality, innovation, and reliability |
191 |
| 30 |
AMETEK Engineered Interconnect and Packagingametekinterconnect.com
Produces end-to-end electronic packaging solutions for harsh, demanding environments and high-reliability applications, including connectors, headers, terminals, cables, and assemblies. |
186 |
| 31 | 170 | |
| 32 |
DRT Aerospace, LLCdrtaerospace.com
DRT Aerospace streamlines supply chains by delivering high-quality machined components and assemblies for the global aerospace industry, utilizing advanced technologies |
123 |
| 33 |
Bullen Ultrasonicsbullentech.com
A trusted partner providing high quality glass and ceramic components for advanced technology industries globally, utilizing cutting-edge grinding technologies Contact us to bring your vision to life |
86 |
| 34 |
Princeton Tool Inc.princetontool.com
A manufacturing company providing innovative engineering, metrology, precision tooling, wax injection-assembly, and precision machining solutions to various industries since 1997 |
60 |
| 35 |
Midwest Precision LLCmidwestllc.com
Precision machining and assembly manufacturer serving aerospace, defense, energy, and engineered products industries Specializing in close tolerance components with AS9100C and ISO9001:2008 certifications |
49 |
| 36 |
Engineticsenginetics.com
A leading provider of complex metal formed components and fabricated assemblies for the global aerospace industry since 1976 |
42 |
| 37 |
Pexco Custom & Specialty Plasticspexco.com
Specializing in designing and manufacturing injection molded parts with ultra-high-performance plastics for critical applications in aerospace, defense, medical, and energy industries |
42 |
| 38 |
Renegade Materials Corp.renegadematerials.com
Revolutionary aerospace prepreg composite technology solutions provider, focusing on performance enhancement, reliability, and customer satisfaction through cutting-edge materials science |
41 |
| 39 |
Vanamatic Companyvanamatic.com
Provider of precision machined components to aerospace, automotive, fluid power, and fittings industries with a focus on excellence in customer service and innovative solutions |
41 |
| 40 |
Dysinger, Incorporateddysinger.com
A company specializing in precision machining, sub-assembly support, and process engineering solutions, committed to high quality standards and customer satisfaction |
32 |
| 41 |
Wulco, Inc.wulco.com
Machinery company located in Cincinnati, Ohio, specializing in providing industrial equipment solutions and services to clients in the United States |
30 |
| 42 |
McNeil Industriesmcneilindustries.com
A precision manufacturing company specializing in machining metals and polymers, producing high performance bearings, guide pins, bushings, and industrial seals ISO certified and ITAR compliant |
26 |
| 43 |
Duke Manufacturingduke-mfg.com
Provider of aerospace and medical industry services for nearly 60 years, offering design, prototyping, production, and assembly with a focus on precision and quality |
24 |
| 44 |
Stadco Precisionstadcoprecision.com
A precision machining company that supplies mission-critical components to innovative industries, offering quality, reproducibility, and agility for increased productivity and profitability |
21 |
| 45 |
Gerstenslagerartiflexmfg.com
Industry leader providing blanking, stamping, assembly, e-coat, packaging, warehouse, and distribution services with innovative solutions and reliable customer service |
21 |
| 46 |
SRICO, Inc.srico.com
This company specializes in making integrated optical waveguide components and optoelectronic subsystems for various applications in different markets |
18 |
| 47 |
Star Precision Technologies, LLCstarprecisiontechnologies.com
Precision manufacturer specializing in tight-tolerance components for aerospace, medical, power generation, military & defense industries with capability for traditional and complex materials |
17 |
| 48 |
Sunset Industries, Inc.sunsetindustries.com
Manufacturer specializing in high precision components for Aerospace, Nuclear, and Industrial markets, with a focus on quality, customer service, and precision machining operations |
15 |
| 49 |
Williams Engineering LLCwilliamsenginedesign.com
Engineering and manufacturing solutions for automotive, aerospace, medical, and OEM machine tool companies, specializing in 3D CAD modeling and high-speed machining applications |
11 |
| 50 |
Center Street Technologiescenterstreettech.com
Specializing in advanced manufacturing technologies and solutions that leverage Industry 40 principles for increased efficiency and productivity |
11 |
| 51 |
Western Reserve Controlswrcakron.com
Custom engineering and manufacturing company providing embedded controllers and IIoT Asset Connectorsโข for Factory and Building Automation systems and Aerospace applications |
8 |
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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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