An Auctioneer.
You would call an auctioneer to hold an action for you since they are the ones who manage the sales and the bidding.
Quiz Master
Quiz Master
the person who sales the product and marketing then deal is call the saleman
A person who conducts a survey is typically called a surveyor or researcher. They gather information by asking questions or observing people in order to collect data and analyze results.
Real Estate broker/agent or Realtor. Also, sales associate or sales person.
Could be referred to as a vendor or sales person.Could be referred to as a vendor or sales person.Could be referred to as a vendor or sales person.Could be referred to as a vendor or sales person.Could be referred to as a vendor or sales person.Could be referred to as a vendor or sales person.
Insulator
A Vendor
Medical sales professional. Medical equipment salesperson.
Electrolyte or acid as we call it.