PHOENIX -- While many people spend years climbing the corporate ladder and bouncing around business ideas, some have it figured out early.
The Phoenix Business Journal has featured 40 people under 40 years old who have become successful in their careers.
One featured youngster is Mountainside Fitness CEO Billy Malkovich.
The gym has 10 locations Valleywide.
"In college when my friends were finishing class and going to their apartments to hang out and study, I was going to work," Malkovich, 34, said. "I think everything I did at the time was with the future-me in mind."
He admits it used to be uncomfortable managing people who were much older than he while he was in his early 20s.
"I don't feel that insecurity anymore," he said. "Do I feel the weight of responsibility? Absolutely. But I do believe thoughts become things, and if you can build something in your mind and put hard work behind it, you can take those thoughts and put them into tangible things and personal goals."
Jenny Poon, who runs a rented office space called Cohoots, had a small idea that grew bigger than she thought it would.
Her business started when she wanted to stop working at home and rent an office building with five others.
"We found a bigger place than we were expecting," said Poon, 30. "Someone said, 'Why don't we open to the public. Imagine the energy and synergy between people if you do this giant melting pot of talent.'"
The goal of the space is to get people from different backgrounds to collaborate with each other and have multiple resources.
Her best advice to entrepreneurs is to just put yourself out there and try your idea.
"It doesn't have to be perfect, it just has to be good enough," Poon said.
If you want to learn more about Billy Malkovich and Jenny Poon, as well as the other 38 under-40s, pick up a copy of the Phoenix Business Journal.