How to retrieve a company with name in v3 API

Hello !
I would like to retrieve a company by name with the api v3 and not with the id.
To be honest i would like to create a company just with the CompanyName but because the name can be multiple, I would like to make a API call before to know if the company exist or not.
Thank you !

You can use the idProperty parameter in the to tell the api method you are going to use another unique value to reference the object - in your case the name property.