There are no such companies. The problem is that you said "monetize later" rather than "become profitable later". For example, someone else suggested that Goo

There are no such companies. The problem is that you said "monetize later" rather than "become profitable later". For example, someone else suggested that Google was an example of a company that had no way of monetizing their original product. That's false. In the earliest days of Google it was obvious that there were tons and tons of ways to monetize the product -- hence the very early-stage investment -- though there was uncertainty of which ways of monetizing were best for growth and profit.