Selling a conpany products

How can I sell a company’s product without someone being another seller. This company does not have a Amazon site nor have no wishes to start anything like that but they are allowing individuals to sell their products on amazon. In order to get their stuff on Amazon you have to do the work of taking the pictures making the listing doing the variations etc etc etc. Is there any way to stop that individual from selling the same product or copying my listing and becoming another seller if I’m the parent of the listing.