Defense · WI
Defense manufacturers in Wisconsin
21 domestic defense suppliers in Wisconsin. Suppliers cleared and equipped for defense work, from ITAR-controlled parts to hardened components for ground, air, and naval systems.
#25
of 50 by manufacturers listed
- 21
- In this state
- 1.3%
- Share of industry
- 6
- 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 Wisconsin
all 21- 1

Janesville, WI · est. 1995
Fabricated Metal · Industrial Chemicals & Gases
$1.1B
- 2

Lancaster, WI · est. 2023
Fabricated Metal
—
- 3

Hartland, WI · est. 2005
Fabricated Metal
—
- 4

Albany, WI · est. 2013
Fabricated Metal
Veteran-owned—
- 5

Richfield, WI · est. 1982
Fabricated Metal
—
- 6

Waukesha, WI · est. 2003
Fabricated Metal
Woman-owned—
- 7

Oostburg, WI · est. 2021
Fabricated Metal
—
- 8

Saint Croix Falls, WI · est. 1991
Fabricated Metal · Transportation & Aerospace
$27.2M
- 9

Spooner, WI · est. 1962
Fabricated Metal · Industrial Chemicals & Gases
$17.8M
- 10

Appleton, WI · est. 2026
Transportation & Aerospace
—
- 11
Oshkosh, WI · est. 1963
Transportation & Aerospace · Primary Metals & Foundry
Veteran-owned$15.1M
- 12
Greenville, WI · est. 2023
Fabricated Metal
—
- 13
Fabricated Metal
Small disadvantaged—
- 14
Antigo, WI · est. 2006
Fabricated Metal
—
- 15
Pepin, WI · est. 2025
Fabricated Metal
—
- 16
Jackson, WI · est. 2004
Fabricated Metal
$124K
- 17
Fabricated Metal · Seals, Gaskets & Sealing
Small disadvantaged+1—
- 18
Amery, WI · est. 1995
Transportation & Aerospace · Fabricated Metal
—
- 19
Clayton, WI · est. 2023
Fabricated Metal
Small disadvantaged+1—
- 20
Greenville, WI · est. 2005
Fabricated Metal
$79.3M
- 21
Thiensville, WI · est. 2018
Fabricated Metal
$1.6M
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 Wisconsin
41 verticals- Metal Fabrication361
- Industrial Machinery89
- Consumer Products76
- Electrical Equipment & Components75
- Food & Beverage Processing75
- Instrumentation, Test & Measurement75
- Medical Devices71
- Plastics & Rubber Products63
- Pulp, Paper & Packaging62
- Chemical Processing60
- Signage, Printing & Marking52
- Robotics & Automation41
- Wire, Cable & Interconnect35
- Fasteners & Hardware30
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 Wisconsin, not just defense.
Wisconsin state hub