# Oosterbaan & Sons Co.: 2,138 certified-payroll hours on 29 Illinois public works projects in Cook, McLean and 7 more counties (2026 Q2)

**Score:** 35/100

| Field | Value |
|---|---|
| Company | Oosterbaan & Sons Co. |
| Trade | Other |
| Quarter | 2026 Q2 |
| Hours reported | 2138 |
| Projects | 29 |
| Project numbers | 2025.097; Coolidge MS - Fine Arts Renov; LPHS Dolan Interior Reno; Dolton SD 149 Diekman ES; Beaubian Woods Boat Launch; Morton East; CDB Harper College NCF; S52005-131; UIUC Astronomical Observatory; 001367; 2023.124; 25-004 Mount Prospect Lib |
| Counties | Cook, McLean, Champaign, Lake, LaSalle, McHenry, DuPage, Kane, Will |
| Stage | Continuing public works contractor |

## Why this score
- Over 1,000 hours in the quarter.

Source: Illinois Department of Labor Certified Transcript of Payroll (Prevailing Wage Act), Report 5 (illinois-edp.data.socrata.com) (https://illinois-edp.data.socrata.com/d/uznz-24br). Last refreshed: 2026-10-28T20:51:04.151Z.
From the Illinois Department of Labor certified payroll transcripts (Report 5). Filings for a quarter keep arriving after it ends, so the latest quarter fills in over time. Hours are as reported by the contractor. Companies named as individuals are excluded. Verify with IDOL.