As I understand, a W9 is typically issued for employment of a person. If a person from another company (for multiple company events) agrees to pay a rental fee of a hardware item owned by a person/corporation, for several occurrences are they required to collect a W9 from the person/corporation?
(They rented $6,000-valued hardware from me a few times in 2017, at a day use rate of $400. This totaled to $1200, where they told me that anyone paid $600 or more requires a W9. I clarified that I was not paid for my work, and that this was just the property rental fee. I'm also afraid that this company is trying to phish my social security number.)