Ring (originally Doorbot) is an app and consumer IoT device that allows homeowners to see and speak to the person at the door through their smartphones, from anywhere.

The company was founded by Jamie Siminoff in 2014, founder of Phone Tag (sold to Ditech in 2009) and Unsubscribe.com (sold to Trusted ID in 2011). The startup appeared on Shark Tank that same year and receiving no offers from the shows investors.

"After 'Shark Tank,' we started selling Doorbots like crazy and that drove sales to $3 million within the year,” Siminoff said to ABC. Ring went on to raise a $4M Series A from True Ventures, following a $1M seed from First Round Capital.

Six years later, Amazon bought Ring for more than $1 billion. Here's a peak an early pitch deck used by Ring (then Doorbot) in 2014.

About the Ring.
  • Industry: Software
  • Tags: Home Security, Surveillance, Video, IoT, Hardware
  • Business Model: SaaS
  • Customer Model: B2C
  • Website: www.ring.com
  • Legal Name: Ring

Data updated as of February 26, 2025.