'Shark Tank' turned down Jamie Siminoff but he built a $1 billion business and returned as a judge

Jamie Siminoff returned to 'Shark Tank' in Season 10 as a guest shark, after appearing as a contestant in Season 9
Jamie Siminoff appeared on 'Shark Tank' in Season 9, seeking $700,000 in exchange for 10% of his company (Cover Image Source: YouTube | @sharktankglobal)
Jamie Siminoff appeared on 'Shark Tank' in Season 9, seeking $700,000 in exchange for 10% of his company (Cover Image Source: YouTube | @sharktankglobal)

Jamie Siminoff's rags-to-riches story is a true testament to perseverance and innovation. In 2013, he appeared on 'Shark Tank' to pitch DoorBot, a smart doorbell that allowed people to see and talk to visitors using their smartphones. Despite the innovation behind the product, the Sharks weren't convinced. Seeking $700,000 in exchange for 10% of his company, Siminoff walked out without a deal as all the offers made were lower than what he expected. Though rebuffed, Siminoff didn't give up easily. He rebranded the product, now known as Ring, and worked tirelessly to improve it, leveraging the publicity gained from his appearance on 'Shark Tank'.



 

Siminoff eventually found success when, in 2018, he sold Ring to Amazon for $1 billion, helping Ring grow into a high-end home security brand by expanding its product line to include additional security cameras, alarm systems, and other protective products around the house. In a full-circle moment, Siminoff returned to 'Shark Tank' in 2018, not as a contestant but as a guest Shark. 

Jamie Siminoff revealed the company took off after over 100 intense hours of marketing

In an interview with Inc., Jamie Siminoff opened up about the challenges he faced while building his company, especially on a tough drive back home, where his garage served as the company's office. At that time, despite having a great product and some sales, his business was still in a tough spot. He referred to it as an "awkward adolescent phase," where they struggled to figure out how to move the business forward.

Success came when Siminoff invested over 100 hours of intense marketing efforts. His hard work paid off, with sales reaching a record-breaking $22.6 million on the first day. The increased exposure attracted influential investors, including Virgin Group founder Sir Richard Branson and former basketball star Shaquille O'Neal, who both became key backers of the business.

Jamie Siminoff's offer was rejected (YouTube/ @sharktankglobal)
Jamie Siminoff's offer was rejected on 'Shark Tank' (YouTube/@sharktankglobal)

How much is Jamie Siminoff's net worth?

The inventor of the smart home security company Ring, Jamie Siminoff, has an estimated net worth of $300 million as of 2024. Before Ring, Siminoff had already built a successful entrepreneurial career by launching and selling several other start-ups, including Gadget Tronics, SimulScribe, and Unsubscribe.com. His first venture, an online calling service, was sold for $1 million in 2001, while another start-up, a voicemail transcription service, sold for $17 million in 2009.



 

In addition to his entrepreneurial ventures, Siminoff has invested in real estate, purchasing properties in locations such as Los Angeles, and Nantucket, owning a house in Aspen, and more recently, a 75-acre farm in Missouri. Moreover, he co-owns a coffee shop in Nantucket.

GET THE BIGGEST ENTERTAINMENT STORIES
STRAIGHT TO YOUR INBOX.

MORE STORIES

‘Dancing With the Stars’ Season 35 airs every Tuesday at 8 p.m. ET/PT on ABC.
2026-10-17T09:36:23.000Z
Despite a rib injury, a fan favorite contestant competed in two more challenges on the Fox show
2026-10-16T07:38:06.000Z
Another Faithful was banished from the game after a majority of the participants turned against him
2026-10-16T05:21:38.000Z
After her strongest connection wanted to pursue someone else, Malaine Thorpe left the experiment.
2026-10-15T07:46:48.000Z
‘Love Is Blind’ star John Shannon shares why his MS diagnosis could be a dealbreaker for a potential partner
2026-10-15T06:18:18.000Z
Two teams were eliminated from the show after failing to reach the Pit Stop before the rest of the teams.
2026-10-15T04:46:29.000Z
The host announced a tribe shake-up, resulting in the formation of new tribes: Toka, Savu, and Dina.
2026-10-15T03:56:09.000Z
The latest episode saw Alexis Lete and Justin Hinsley competing in a puzzle challenge in the elimination arena
2026-10-15T02:43:22.000Z
‘Forensic Files’ receives exciting update from Radial Entertainment, Content Partners and ITV Studios, expanding the iconic true crime series.
2026-10-14T15:43:22.000Z
‘Love Is Blind’ Season 11, which features singles from Boston, released five episodes on Netflix on October 14
2026-10-14T09:44:37.000Z