Defense · IL
Defense manufacturers in Illinois
21 domestic defense suppliers in Illinois. Suppliers cleared and equipped for defense work, from ITAR-controlled parts to hardened components for ground, air, and naval systems.
#24
of 50 by manufacturers listed
- 21
- In this state
- 1.3%
- Share of industry
- 12
- Set-aside registered
- 7
- Federal track record
of 21 on this page
of 21 hold awards
Standards that matter in defense
2 to specify- ITAR Registered
- CMMC
Listings carry the federal set-aside registrations a company filed in SAM, not its quality-system certificates. Ask each shop for the current certificate and its scope before you release a drawing.
Defense suppliers in Illinois
all 21- 1
Addison, IL · est. 2001
Fabricated Metal
Woman-owned$1.1M
- 2
Lake Barrington, IL · est. 1987
Fabricated Metal
Small disadvantaged—
- 3
Lake Barrington, IL · est. 2024
Fabricated Metal
—
- 4
Lake Zurich, IL · est. 2015
Fabricated Metal
Small disadvantaged+1—
- 5
Champaign, IL · est. 2005
Fabricated Metal · Machinery & Tooling
$732.0M
- 6
Naperville, IL · est. 2014
Fabricated Metal
Small disadvantaged+2—
- 7
Rock Island, IL · est. 2007
Fabricated Metal
Small disadvantaged—
- 8
Gilman, IL · est. 2024
Fabricated Metal
Small disadvantaged—
- 9
Dwight, IL · est. 1971
Fabricated Metal
Veteran-owned—
- 10
Northbrook, IL · est. 2001
Transportation & Aerospace
$435K
- 11
Lake Forest, IL · est. 2014
Fabricated Metal · Industrial Chemicals & Gases
$10.2M
- 12
Taylorville, IL · est. 1982
Fabricated Metal · Seals, Gaskets & Sealing
Woman-owned—
- 13
Colona, IL · est. 1994
Fabricated Metal
$41K
- 14
Glen Carbon, IL · est. 2025
Fabricated Metal
Small disadvantaged+1—
- 15
Chicago, IL · est. 2025
Transportation & Aerospace · Engineering & Testing
—
- 16
Fabricated Metal · Industrial Chemicals & Gases
$608.7M
- 17
Edwardsville, IL · est. 2025
Fabricated Metal · Machinery & Tooling
—
- 18
Princeton, IL · est. 1971
Fabricated Metal · Machinery & Tooling
Woman-owned—
- 19
Bradley, IL · est. 2024
Fabricated Metal
Small disadvantaged+1—
- 20
Des Plaines, IL · est. 2023
Fabricated Metal
—
- 21
Chicago, IL · est. 1993
Transportation & Aerospace
Woman-owned$7.6M
1–21 of 21
Defense in other states
49 states- California173
- Florida161
- Texas130
- Michigan89
- Virginia85
- Pennsylvania58
- Colorado58
- Arizona53
- North Carolina47
- Georgia44
- Ohio42
- Alabama40
- New York36
- Washington34
- Tennessee33
- Missouri30
- Nevada29
Other industries in Illinois
42 verticals- Metal Fabrication497
- Chemical Processing179
- Medical Devices161
- Instrumentation, Test & Measurement147
- Food & Beverage Processing141
- Industrial Machinery131
- Signage, Printing & Marking127
- Consumer Products118
- Electrical Equipment & Components115
- Electronics95
- Plastics & Rubber Products77
- Fasteners & Hardware74
- Pulp, Paper & Packaging72
- Furniture70
- Wire, Cable & Interconnect70
- Textiles & Apparel66
- Aerospace60
- Building Products & Materials59
- Pharmaceutical57
- Robotics & Automation53
- Telecommunications50
- Optics & Photonics37
- Primary Metals & Foundry32
- HVAC & Refrigeration31
- Automotive30
- Tanks, Vessels & Heat Exchangers25
- Heavy Truck, Trailer & Vehicle Bodies19
- Lighting19
What buyers specify in defense
3 requirements- 01ITAR-registered handling of controlled technical data
- 02CMMC-aligned cybersecurity practices
- 03Hardened components for ground, air, and naval programs
Everything made in Illinois, not just defense.
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