Ring: Jamie Siminoff

Jamie Siminoff is the founder of Ring.
Anjali Kamat for NPR
Jamie Siminoff is the founder of Ring.

Anjali Kamat for NPR

Jamie Siminoff spent much of his twenties and thirties as a serial entrepreneur, launching three tech businesses you’ve probably never heard of.

When he finally landed on a breakthrough idea, he didn’t realize it at first; he was just trying to solve his own frustration of not being able to hear the doorbell while tinkering in his garage.

His jerry-rigged solution evolved into Ring—a doorbell with a camera and microphone that connects to a smart-phone app.

After a nail-biting appearance on Shark Tank and a nearly disastrous launch, Jamie was able to rebrand and grow the business, eventually selling to Amazon for roughly $1 billion.