Illinois Department of Transportation
Trans Internal Sec Invest
Gregory Williamson A in 2025 was employed at Illinois Department of Transportation and had an annual salary of $105,630, according to public records. This salary was 32 percent higher than the average and 16 percent higher than the median salary in Illinois Department of Transportation.
Illinois Department of Transportation records show Gregory Williamson A held two jobs from 2024 to 2025.
| Year | 2025 |
| Full Name | Gregory Williamson A |
| Original Job Title | Trans Internal Sec Invest I |
| Job Title | Trans Internal Sec Invest |
| State | Illinois |
| Employer | Illinois Department of Transportation |
| Annual Wage | $105,630 |
| Pay Plan |
*Information may include where available: salary, bonuses, benefits, retirement contributions, pensions, and other financial data.
| Employer Name | Illinois Department of Transportation |
| Year | 2025 |
| Number of Employees | 7,545 |
| Average Annual Wage | $80,171 |
| Median Annual Wage | $91,273 |
Gregory Williamson A (2024)Technical Manager | View Person Details |
Jason Scarber R (2025)Highway Maintainer at Illinois Department of Transportation | View Person Details |
Phillip Steed A (2025)Engineering Technician at Illinois Department of Transportation | View Person Details |
Johnathan Vinyard E (2025)Highway Maintainer at Illinois Department of Transportation | View Person Details |
Andrew McDonald T (2025)Highway Maintainer at Illinois Department of Transportation | View Person Details |
Lonnie Klemme L (2025)Highway Maintainer at Illinois Department of Transportation | View Person Details |
Marshall Carlen L (2025)Highway Maintainer at Illinois Department of Transportation | View Person Details |
Timothy Hathaway J (2025)Highway Maintainer at Illinois Department of Transportation | View Person Details |
Steven Caton T (2025)Highway Maintainer at Illinois Department of Transportation | View Person Details |
Christopher Drew Taitt (2025)Highway Maintainer at Illinois Department of Transportation | View Person Details |
Matthew Craft R (2025)Highway Maintainer at Illinois Department of Transportation | View Person Details |