Reseller

A reseller is a company or person that buys products or services with the intention of reselling them later.

Read also:

1. Cross-selling

2. Outsourcing

3. ROI

Useful links:

https://en.wikipedia.org/wiki/Reseller

https://www.oberlo.com/blog/reseller-business 

https://www.the-reseller-network.com/content/107/starting-a-reseller-business/