> Rivian raised $2.9 billion over four funding rounds in the span of one year? And it's been around for a full decade without ever releasing a product? Does this not set off alarm bells?
Not necessarily. They just signed some huge deals with Ford and Amazon, both of whom invested. What likely happened is that Rivian needed a lot of money for cap ex an inventory and wanted the customer to prepay. Those customers had a lot of power and so likely said, "Sure, but we'll take equity thank you very much."
I've bootrapped companies by having the customer underwrite the development cost but the sums have been so small (hundreds of $K, once a few million) that they weren't worth the customers (megacorps) worrying about this kind of thing. But when the sums needed are in the hundreds of millions, the CFO's office, if not the CEO, is gonna try to get something back.