Most people would answer the question posed in the title by saying, “Whoever’s doing the business development in the company.”
The real irony is that when the responsible party or parties are asked, they always have an answer. The scary part is that most of the time the person asking for the information has no way to verify that what they’re being told is true and/or accurate. Most people giving the answers are convinced they are correct, but they are usually answering the questions from their memory and sometimes with what they think the person asking wants to hear.