A vendor, or a supplier, is a supply chain management term meaning anyone who provides goods or services to a company. A vendor often manufactures inventoriable items, and sells those items to a customer. History The term vendor originally represented property vendors. However, today it means a supplier of any good or service. A vendor, or a supplier, is a supply chain management term that means anyone who provides goods or services to a company. A vendor often manufactures inventoriable items,… (More on Vendor)