Employers in Illinois filed 36 WARN Act notices in March 2025, impacting roughly 26,435 workers — representing a notable rise over February and up 58% versus March 2024. The average filing covered 734 workers, with 4 closures among the notices.
| Industry | Notices | Workers |
|---|---|---|
| Admin & Support Services | 5 | 5,446 |
| Transportation | 6 | 4,222 |
| Professional Services | 3 | 2,100 |
| Manufacturing | 5 | 276 |
| Retail | 1 | 76 |
| Utilities | 1 | 46 |
| Finance & Insurance | 1 | 25 |
The Admin & Support Services sector led the way in workforce reductions with 5,446 workers across 5 notices. In a parallel development, Transportation reported 4,222 workers.
| County | Notices | Workers |
|---|---|---|
| Cook | 6 | 1,615 |
| Winnebago | 1 | 129 |
| Kane | 2 | 106 |
| Kankakee | 1 | 69 |
| Multiple | 1 | 25 |
Cook was the epicenter of layoff activity, accounting for 6% of all affected workers with 1,615 workers across 6 notices.
| City | Notices | Workers |
|---|---|---|
| 10 S Riverside Plaza, Suite 600 | 1 | 2,025 |
| No IL office | 1 | 2,025 |
| Suite 201 | 1 | 2,025 |
| 305 E Washington | 1 | 2,025 |
| Suite 2200 | 1 | 2,025 |
| Type | Notices | Workers |
|---|---|---|
| Closure | 4 | 529 |
| Layoff | 6 | 357 |
Closures accounted for 2% of affected workers, while the majority of filings were layoffs rather than permanent shutdowns.
| Company | City | Workers | Type | Date |
|---|---|---|---|---|
| American Institute of Research | 10 S Riverside Plaza, Suite 600 | 2,025 | 2025-03-01 | |
| Block, Inc | No IL office | 2,025 | 2025-03-01 | |
| Digby's Detective and Security Agency, Inc | Suite 201 | 2,025 | 2025-03-01 | |
| Gilster-Mary Lee Corporation | 305 E Washington | 2,025 | 2025-03-01 | |
| Inter-Con Security Systems, Inc | Suite 2200 | 2,025 | 2025-03-01 | |
| PECO Pallet, Inc | 2924 E 126th St | 2,025 | 2025-03-01 | |
| Penske Logistics LLC | 1000 Bilter Rd | 2,025 | 2025-03-01 | |
| Primo Brands, Inc | 6055 S Harlem Ave | 2,025 | 2025-03-01 | |
| Quiet Logistics | 1333 N Hckory Ave | 2,025 | 2025-03-01 | |
| Ardagh Galss, Inc | 13850 Cottage Grove Ave | 2,025 | 2025-03-01 | |
| Charles River Laboratories, Inc | 8025 Lamon Ave | 2,025 | 2025-03-01 | |
| Wheatland Tube, LLC | 4435 S Western Blvd | 2,025 | 2025-03-01 | |
| Inter-Con Security Systems, Inc | Chicago | 1,058 | 2025-03-06 | |
| Inter-Con Security Systems, Inc | Chicago | 338 | Closure | 2025-03-06 |
| TreeHouse Private Brands, Inc | South Beloit | 129 | Layoff | 2025-03-28 |
The single largest action involved American Institute of Research at its 10 S Riverside Plaza, Suite 600 facility, reporting 2,025 affected workers. Block, Inc followed with 2,025 workers.
After a dip last month, layoff activity has ticked back up.
The data underscores mounting pressure on the Illinois labor market, with activity running above both recent and year-ago benchmarks. The Admin & Support Services sector warrants close attention heading into the next period.
This analysis is based on official WARN Act filings reported by Illinois. The Worker Adjustment and Retraining Notification (WARN) Act requires employers with 100+ employees to provide 60-day advance notice of mass layoffs and plant closings. Data is updated daily by WARN Firehose. View all Illinois WARN notices, browse layoffs by state, or download the full dataset.
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