CBP data indicates there were 319,187 total businesses in Illinois.
The following table gives a breakdown of businesses in Illinois by total employees in 2019.
Businesses in Illinois (2019) by total employees
| Total employees | Total businesses | Percent of Illinois total |
|---|---|---|
| 0 to 4 | 179,783 | 56.3% |
| 5 to 9 | 53,967 | 16.9% |
| 10 to 19 | 37,476 | 11.7% |
| 20 to 49 | 28,181 | 8.8% |
| 50 to 99 | 9,577 | 3% |
| 100 to 249 | 5,774 | 1.8% |
| 250 to 499 | 1,312 | 0.4% |
| 500 to 999 | 299 | less than 0.1% |
| more than 1,000 | 155 | less than 0.1% |
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