CBP data indicates that no other industry had more establishments with fewer than five employees in ZIP code 21122 than construction businesses.
The following table shows the top 10 industries of total establishments with fewer than five employees in ZIP code 21122 in 2017.
Top 10 Industries with fewer than five employees in ZIP code 21122 (2017)
| Industry | Total Establishments |
|---|---|
| Construction businesses | 154 |
| Retail trade businesses | 65 |
| Professional, scientific and technical services businesses | 65 |
| Administrative, support, waste management and remediation services businesses | 53 |
| Health care and social assistance businesses | 43 |
| Real estate, rental and leasing businesses | 30 |
| Accommodation and food services businesses | 25 |
| Transportation and warehousing businesses | 23 |
| Finance and insurance businesses | 22 |
| Wholesale trade businesses | 15 |
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