Geekwire
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'My Brain Exploded': Ring Founder Jamie Siminoff on Mark Cuban's Shark Tank Rejection
Posted
November 8, 2025
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November 8, 2025
4,091
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4:55Now PlayingRing founder Jamie Siminoff revisits the "brain exploding" moment Mark Cuban rejected him and his company, then called DoorBot, on ABC's Shark Tank. In this clip from the GeekWire Podcast, Siminoff shares his candid reaction to Cuban's response — "I just don't see that progression" — and explains why the billionaire's miss was understandable at the time.
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This is a clip from our full interview about Siminoff's new book, "Ding Dong: How Ring Went from Shark Tank Reject to Everyone's Front Door."
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