People who sell magazines and newspapers are typically referred to as newsagents or street vendors.
Food vendors are referred to people who sell food. Mostly people who sell food on the streets are called food vendors.
An invoice would show you how much money is owed to vendors. It is essentially a bill or request for payment with updated totals and balances.
A group of Dolphins are called a Pod
A group of dolphins is called a pod. If that is your question.
When company purchases materials from different vendors on credit, those combined creditors are called sundry creditors.
no vendors allowed
A group of hens is called a brood.
a group of Blackbirds is called a murder
A group of martens is called a "richness."
A group of grouse is called a "pack".
They are called Vendors or Barkers by some people.