CBP data indicates there were 4,225 total businesses in Middlesex County.
The following table gives a breakdown of businesses in Middlesex County by total employees in 2019.
Businesses in Middlesex County (2019) by total employees
| Total employees | Total businesses |
|---|---|
| 0 to 4 | 2,247 |
| 5 to 9 | 788 |
| 10 to 19 | 573 |
| 20 to 49 | 392 |
| 50 to 99 | 105 |
| 100 to 249 | 52 |
| 250 to 499 | 15 |
| more than 500 | 3 |
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