● Congressional district

Wisconsin's 4th District

Where federal work lands. ≈ inferred district figures are inferred from place-of-performance addresses.

$5.9B

work performed here, FY2025

contractors

Wisconsin Department …

top contractor

Part of Wisconsin

Represented byGwen Moore(D, House)·Tammy Baldwin(D, Senate)·Ron Johnson(R, Senate)

Obligations by year

≈ computed

$6.9B

FY20

$7B

FY21

$5.4B

FY22

$5.7B

FY23

$5.7B

FY24

$5.9B

FY25

▼ 14%

since FY20

Top contractors performing here

Wisconsin Department of Transportation$322M

University of Wisconsin System$65.8M

Oshkosh Defense LLC$28.2M

Department of Military Affairs Wisconsin$8.9M

Metropolitan Security Services, Inc.$2.7M

Redacted Due to Pii$1.9M

Wisconsin Department of Natural Resources$1.6M

SDV Office Systems LLC$1.1M

Hamilton Sundstrand Corporation$888.5K

Siemens Medical Solutions USA, Inc.$848K

≈ inferred inferred from each contractor’s place-of-performance in this district: the contractors we track, not every firm here.

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Why the labels? The graph is only worth anything if the links are trusted. Facts taken straight from a federal filing are ✓ from source; figures we calculate are ≈ computed; links we infer (corporate parents, districts, competitors, connections between records) are ≈ inferred, worded carefully, never asserted as fact and never a claim that one thing caused another. Spot an error? Tell us.