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We figured out the best biggest companies to work for in Illinois using data on salaries, company financial health, and employee diversity. You can also search for the best biggest companies to work for in any other state or city.

Zippia score 3.7
Since 1972, Community Link has been committed to serving people with developmental disabilities.
Zippia score 3.8
Mater Dei Catholic High School, is a Catholic, co-educational high school in Breese, Illinois, United States, in the Roman Catholic Diocese of Belleville. It was founded in 1954 through the merger of St. Dominic's High School in Breese and St. Mary's High School in Carlyle, Illinois.
Zippia score 4.1
Headquartered in Breese, Illinois, Poettker Construction is licensed and qualified to do business in thirteen states in the central United States. The hallmark of every Poettker Construction project is the relationship developed among the individu...
| Rank | Company | Zippia score |
|---|---|---|
| 1 | Clinton County Rehab Ctr | |
| 2 | Mater Dei Catholic High School | |
| 3 | Poettker Construction |