Forbes recently ranked Lucy Guo the second-richest self-made woman under 40 after she managed to crack the male-dominated world of tech and gather a sizeable net worth of $440 million.
The youngest billionaire on the Forbes 400 list, which ranks the richest 400 Americans, is 29 and wears shorts to work.
Austin Russell is the world’s wealthiest and youngest self-made tech mogul, taking the world of self-driving cars by storm.
Austin Russell founded his company, Luminar, when he was 17. At 25, he’s the world’s youngest self-made billionaire.