"Supplier companies" refers to businesses that provide products or services to other companies. They are responsible for supplying the necessary goods or services needed by their clients to operate their own business. Full definition
This can be bought at most animal supply companies. (cap4pets.org)
I got a pump before I gave birth — I called a medical supply company in my insurance network, and the pump was covered, and they sent it to my house. (babycenter.com)
This covers regular medical expenses provided the insured supplies the company with the required bills. (policybazaar.com)