Humboldt Mfg. CO
At a glance
Employees20-99
In business sinceNot reported
HeadquartersElgin, IL
SAM.gov UEIQ33LYFLM8Y26
CAGE code89890
Incorporated inIL
- testing equipment
- construction materials
- cement
- augers
- tests
- compaction
- nuclear gauges
- cones
- penetrometers
- ovens
- scales
- sieves
Named on the company’s own website, read SEP 9, 2026
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Humboldt Mfg. CO | Elgin | IL | 20–99 | ACTIVE |
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.