>> reporter: this is what put manag pargarva on the list. one two-ounce can at a time.only been in business eight years. virt really creating the energy shot field. and it's built him a net worth of $1.3 billion and given him spot number 960 on the "forbes" list. go higher up the list, and at 634 there's elon musk who made money in paypal. but right now, his baby is this, the tesla car. it's electric. so are its fans like george clooney. musk, who is 40, is worth $2 billion. ♪ >> reporter: and then, there is this consumer product. anything with this logo on it. and of course, the man behind it left us not long ago. but as his wealth was passed on to his wife, she is now worth $9 billion. and at number 100, is one of only two newcomers on the list to break into the top 100. so, who's really way up there where the net worth gets into the 40s and the 50s and the 60s of billions? some familiar old faces. we could list their products. but what they really make, no matter what, is money. i'm john donvan, for "nightline," in washington. >> that's a lot of money, too. thanks fo