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15-Year-Old Noa Mintz Is Getting Rich From Babysitting

NEW YORK, NY - DECEMBER 09: (L-R) Caleb Mintz, Avieal Mintz, Meredith Berkman, Yael Mintz and Noa Mintz attend American Friends of Magen David Adom's Annual New York Benefit Dinner at The Lighthouse at Chelsea Piers on December 9, 2013 in New York City. (Photo by Ben Gabbe/Getty Images)
NEW YORK, NY - DECEMBER 09: (L-R) Caleb Mintz, Avieal Mintz, Meredith Berkman, Yael Mintz and Noa Mintz attend American Friends of Magen David Adom's Annual New York Benefit Dinner at The Lighthouse at Chelsea Piers on December 9, 2013 in New York City. (Photo by Ben Gabbe/Getty Images)
Ben Gabbe via Getty Images

Noa Mintz is a savvy schoolgirl who is already worth an estimated $375,000 (£243,000) after starting her own babysitting service.

Nannies By Noa is a website bringing babysitting into the 21st century, serving one of New York's richest areas, created by Noa at just 12 years old.

The site matches clients with one of its 50 babysitters and 25 full-time nannies, charging $50-100 per match.

Noa charges a base rate of 15% of each full-timer's gross annual salary, which can be anywhere from $50,000 to $80,000.

Demand has been so intense she has been forced to hire a CEO, 26-year-old Allison Johnson. It was "a little bit of a challenge" to take orders from a teenager, she admits, but Allison values women who make things happen for themselves.

"It's not that I wanted to be a babysitter. I just recognized what the potential of a New York nanny should be, so I gave it a shot and it got big very fast."