CBP data indicates that no other industry had more establishments with fewer than five employees in ZIP code 21221 than construction businesses.
The following table shows the top 10 industries of total establishments with fewer than five employees in ZIP code 21221 in 2017.
Top 10 Industries with fewer than five employees in ZIP code 21221 (2017)
| Industry | Total Establishments |
|---|---|
| Construction businesses | 58 |
| Retail trade businesses | 45 |
| Health care and social assistance businesses | 30 |
| Accommodation and food services businesses | 29 |
| Professional, scientific and technical services businesses | 27 |
| Administrative, support, waste management and remediation services businesses | 24 |
| Real estate, rental and leasing businesses | 17 |
| Transportation and warehousing businesses | 15 |
| Wholesale trade businesses | 11 |
| Finance and insurance businesses | 11 |
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