The loan agreement lists the terms under which a loan is given. The bank is the lender, and any borrowing entity--individual, partnership, company--is the borrower. The loan agreement covers many of the same terms and conditions as a promissory note, although it is longer and more complicated.
The subsidiaries remain private. They are private subsidiaries of a public company. Think about it: if a subsidiary went public, that would mean that its shares were being offered to the public, instead of all being owned by the parent company, and so it would no longer be a subsidiary.
Reasons Companies Have Subsidiaries. A parent-subsidiary relationship is created between two companies when one holds a controlling interest in the other. One parent company can establish several subsidiaries, all under its control. Companies with multiple subsidiaries and no primary business activities of their own are also known as holding companies. A parent company can create a new subsidiary from within or take over a controlling interest in an existing company. There are several reasons for a company to have subsidiaries