A person who conducts a workshop is typically referred to as a "facilitator" or "workshop leader." They guide participants through the activities and discussions, helping to foster learning and engagement. Depending on the context, they may also be called an "instructor" or "trainer."
Conference : Everybody attending conference knows about the topic going to discuss. Its about sharing knowledge. Workshop : The person who conducts the workshop knows well about the topic. Everybody else learn from the person who conducts the workshop.
A person who gives a workshop can be called a workshop facilitator, instructor, trainer, or presenter, depending on the context and the nature of the workshop.
An Auctioneer.
Quiz Master
Quiz Master
A person who conducts a survey is a surveyor.
A laboratory
Insulator
A person who conducts sales by bidding is called an AUCTIONEER.
A person that conducts an interview.
scientist doctor physicist researcher experimenter
This selling method is called an "auction". The person calling out or announcing the prices (or bids) is called an "auctioneer".