7 best business ideas and its examples in USA 

1. E-Commerce distribution center for small business- example: Amazon

2. Personal CyberSecurity Software Company- example: Symantec

3. International Trade Consulting Company

4. Digital Assistant Integrations Company- example: Siri

5. Digital marketing agency- example:webfx

6. Affordable Elderly Care Facilities

7. API Management Firm- example: CA API Management

these are 7 best business ideas and its examples you can start in USA