Tony Mangione, 24

Your typical 24-year-old’s business card probably doesn’t feature the title “partner” at a commercial real estate firm — but Tony Mangione’s does.

Mangione, however, doesn’t seem too surprised at his early career success. “To be honest, yes,” he replies when asked if he thought he’d be in this position at such a young age. “I sacrificed fun as a 17-, 18-, 19-year-old. I was working 50-60 hours a week trying to build a solid foundation [for my career]. I was eating and drinking commercial real estate.”