Palavir · State of US Industries, 2026 Edition
State of Professional, Scientific, and Technical Services in Illinois, 2026 Edition
NAICS 54
May 28, 2026
1. Market sizing (2022)
Establishments
38,012
Employees
450,829
Annual payroll
$52.72B
2. National context
Illinois accounts for 3.90% of the 974,303 US establishments in this sector and ranks 5th out of 51 reporting states.
3. Workforce wages
IL avg annual wage
$116,937
US avg annual wage
$105,185
Illinois sector wages are +11.2% versus the national average for NAICS 54.
4. Federal exclusion overlay (state-wide)
OIG LEIE individuals + entities
2,384
SAM debarred/excluded
3,724
Exclusion counts are state-wide across all NAICS, not specific to Professional, Scientific, and Technical Services. Sourced from OIG LEIE and SAM exclusion lists, as of 2026-05-27.
5. Top 3 counties by establishment count
| Rank | County | Establishments | Employees |
|---|---|---|---|
| #1 | Cook County | 19,198 | 266,129 |
| #2 | DuPage County | 4,966 | 53,422 |
| #3 | Lake County | 2,838 | 41,727 |
GovBids
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