● Congressional district
IL-13
Where federal work lands. ≈ inferred district figures are inferred from place-of-performance addresses.
$5.1B
work performed here, FY2025
10
contractors
Illinois State Board …
top contractor
Part of Illinois
Obligations by year
≈ computed$5.1B
FY23
$7.3B
FY24
$5.1B
FY25
▼ 1%
since FY23
Top contractors performing here
University of Illinois$380.9M
Springfield, City of$178.7M
Tetra Tech, Inc.$19.3M
Olin Winchester LLC$16.8M
≈ 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; anything we compute or infer (corporate parents, districts, competitors) is ≈ inferred and worded carefully, never asserted as fact.