CBP data indicates that no other industry had more establishments with fewer than five employees in ZIP code 21231 than professional, scientific and technical services businesses.
The following table shows the top 10 industries of total establishments with fewer than five employees in ZIP code 21231 in 2017.
Top 10 Industries with fewer than five employees in ZIP code 21231 (2017)
| Industry | Total Establishments |
|---|---|
| Professional, scientific and technical services businesses | 50 |
| Retail trade businesses | 43 |
| Accommodation and food services businesses | 35 |
| Real estate, rental and leasing businesses | 23 |
| Health care and social assistance businesses | 20 |
| Finance and insurance businesses | 12 |
| Construction businesses | 10 |
| Administrative, support, waste management and remediation services businesses | 10 |
| Manufacturing businesses | 6 |
| Arts, entertainment and recreation businesses | 6 |
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