| # | Company | Employees |
|---|---|---|
| 1 |
L3Harris Technologiesl3harris.com
Global provider of end-to-end technology solutions across space, air, land, sea and cyber domains to address mission-critical national security requirements. |
31,265 |
| 2 |
Harris Corporationl3harris.com
A leading technology innovator providing solutions in communication systems, electronic systems, and space and intelligence systems to connect, inform, and protect globally |
7,430 |
| 3 | 1,485 | |
| 4 |
IntrepidGSintrepidgs.com
A global provider of logistics, facilities management, and professional services, specializing in solving challenges for public and private sector customers worldwide |
1,409 |
| 5 |
Spartonsparton.com
A global leader in designing, testing, and producing advanced maritime electronic systems, specializing in sonobuoys for Anti-Submarine Warfare and submarine products for Undersea Warfare |
797 |
| 6 |
Fleet Readiness Center Southeastfrcse.navair.navy.mil
Depot-level maintenance, repair, and overhaul of aircraft, engines, and weapons systems for the US Navy with manufacturing capabilities and engineering support |
681 |
| 7 |
a.i. solutionsai-solutions.com
Provider of space mission engineering, launch vehicle services, mission systems assurance, and FreeFlyer庐 astrodynamics software, delivering superior results to space and defense agencies since 1996 |
599 |
| 8 |
InDyneindyneinc.com
InDyne provides customer-focused solutions with well-managed growth since 1984 They prioritize safety, community support, and exceeding customer expectations globally |
545 |
| 9 |
Aerodyne Industries LLCaerodyneindustries.com
Aerodyne Industries LLC is a veteran-owned engineering services company specializing in aerospace, defense, and government sectors with experienced leadership and a commitment to quality |
509 |
| 10 |
Cole Engineering Services, Inc. (CESI), a By Light Companybylight.com
A full-fledged leader in modeling, simulation, and training industry, delivering complex solutions across DoD using mature technologies and processes |
496 |
| 11 |
RGNextrgnext.com
A joint venture providing range services, engineering, communications, cybersecurity, logistics, and specialized business functions for various tests and evaluations |
488 |
| 12 |
Teledyne Marineteledynemarine.com
A group of undersea technology companies under Teledyne Technologies providing a wide array of sub-sea solutions Visit wwwteledynemarinecom |
480 |
| 13 |
Naval Surface Warfare Center Panama City Divisionnavsea.navy.mil
This company specializes in conducting research, development, testing, and support for various naval warfare systems, including mine warfare and special operations |
400 |
| 14 |
Reliance Test & Technology, LLCrtt-jv.com
Engineering and technical support for Eglin Test and Training Range complex and National Radar Cross Section Test Facility under Air Force contract Prepare aircraft and air crews for missions |
381 |
| 15 |
Trace Systems Inc.tracesystems.com
A provider of communications, IT, and cybersecurity services to the US Government and Department of Defense worldwide, specializing in support in challenging environments |
324 |
| 16 |
Dohme Industries Albaniacoloradoboxedbeef.com
Privately-held company specializing in purchasing, sales, marketing, distribution, and logistics solutions for various food products with a core focus on customer satisfaction |
187 |
| 17 |
Knight's Armament Companyknightarmco.com
A premier weapons manufacturer specializing in weapon systems, modular accessories, and electro-optics for military and law enforcement, with a focus on R&D and quality |
183 |
| 18 |
Red 6red6ar.com
A veteran founded company revolutionizing advanced training and digital interaction with groundbreaking outdoor augmented reality technology for dynamic environments |
183 |
| 19 |
AVT Simulationavtsim.com
End-to-end systems integration and training solutions provider specializing in modeling & simulation, engineering services, database development, and military training systems technology |
174 |
| 20 |
Extant Aerospaceextantaerospace.com
Manufacturer and supplier of complex electronic assemblies for military and commercial applications, specializing in digital communications, imagery solutions, and Electronic Warfare products |
170 |
| 21 | 160 | |
| 22 |
Carley Corporationcarleycorp.com
Designing and delivering training solutions, specializing in Instructional Systems Design, Learning Management Systems, and diverse media training. |
149 |
| 23 |
Mainstream Engineering Corporationmainstream-engr.com
A research and manufacturing small business specializing in developing technologies for military and private sectors, focusing on thermal control and energy conversion |
148 |
| 24 |
Aeronixaeronix.com
Aeronix is a high-tech, employee-owned organization providing customized electronics and software systems for defense, commercial, and international customers, along with technical consulting services |
105 |
| 25 |
Systems Planning and Analysis, Inc.spa.com
Specialized aerospace company supporting National Security Space customers with expertise in space control, protection, intelligence, cyber intelligence, and joint warfighter planning |
71 |
| 26 |
AO Precision Manufacturingaopmfg.com
Specializing in precision machining for aerospace and defense industries, providing a range of turnkey solutions from design to finishing, with diverse customer base and continuous growth |
67 |
| 27 |
C4 Advanced Tactical Systems, LLC.c4ats.com
An ISO 9001:2008 certified US manufacturer specializing in complex and precision products, offering manufacturing, integration, testing, logistics services, and environmental testing |
52 |
| 28 |
Seagate Spaceseagatespace.com
Develops maritime platforms for offshore space launch, providing cost, resilience, and orbital access benefits for modern space industry challenges. |
10 |
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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.
More company lists in Florida
- The largest companies in Florida 4,945
- Hospitals and Health Care companies in Florida 346
- Financial services firms in Florida 307
- Retail chains in Florida 301
- IT Services and IT Consulting companies in Florida 296
- Financial Services companies in Florida 255
- SaaS companies in Florida 251
- Real Estate companies in Florida 225
- Software Development companies in Florida 194
- Critical infrastructure operators in Florida 188
- Healthcare providers in Florida 184
- IT services companies in Florida 183
- Insurance companies in Florida 174
- Hotel and hospitality groups in Florida 141
- Hospitality companies in Florida 137
- Venture capital and private equity firms in Florida 136
- Education providers in Florida 135
- Higher Education companies in Florida 133
- Construction companies in Florida 124
- Government Administration companies in Florida 113
- Advertising Services companies in Florida 104
- Retail companies in Florida 104
- Manufacturers in Florida 91
- Family-owned companies in Florida 87
The same list elsewhere in United States
- Defense and Space Manufacturing companies in the United States 564
- Defense and Space Manufacturing companies in Virginia 120
- Defense and Space Manufacturing companies in California 65
- Defense and Space Manufacturing companies in Alabama 48
- Defense and Space Manufacturing companies in Colorado 28
- Defense and Space Manufacturing companies in Massachusetts 25
- Defense and Space Manufacturing companies in Maryland 24
- Defense and Space Manufacturing companies in Huntsville 30