James Siminoff

CEO and Chief Inventor, Ring

Jamie is currently the CEO and Chief Inventor of Ring. He is also the Founder and CEO of the design laboratory, EdisonJr. Previously, Jamie was the Co-Founder and CEO of Unsubscribe, Inc. Unsubscribe.com is a technology platform to stop unwanted e-mail at the source. Before that, Jamie founded PhoneTag, the first voicemail to text service in the U.S., which was acquired by Ditech Networks (Nasdaq:DITC) in 2009. Prior to PhoneTag, Jamie founded and is still an active advisor to NobelBiz, a provider of telecommunications services to contact centers. Jamie has received numerous awards for his entrepreneurial accomplishments including being recognized as one of New York’s top six entrepreneurs by Crain’s Magazine (2007) and Laptop Magazine’s top ten mobile mavericks. Jamie holds a bachelor’s degree in entrepreneurship from Babson College in Wellesley, MA and went to Harvard Business School in Cambridge, MA where he bought a t-shirt that he still wears today.

Content & Articles by James Siminoff

Closing Enterprise Deals in Founder-Led Sales as a Startup

In our recent Mucker Growth Series session, I invited David Mackay, Managing Director at D9Y and one of our operating experts at Mucker, to talk about closing enterprise deals in...

The 10 Security Gaps That Plague Startups Before Their A Round

A NOTE ON SEVERITY Not every item on this list carries the same level of risk. Some are the kind of finding that stops a deal. Others are serious but...

Community-Led Growth for Startups: Why Most Communities Fail and How to Build One That Actually Works

In our recent Mucker Growth Series session, I invited Sam Jacobs — founder and CEO of Pavilion — to talk about community-led growth: what it actually means, why most communities...

Pricing Models & Monetization Systems for Startup Success

In our recent Mucker Growth Series webinar session, we invited Jeffrey Tjiok and Jack Benson from Simon-Kucher to break down how startups can build pricing into their DNA from day...

Pitch Decks That Actually Raise Money: An Extreme Makeover Guide

Welcome to another recap from our Growth Series webinars, a series of sessions where we go deep into topics that help drive startup growth. In this session, we invited back...

Stop Hiding Behind Your Screen: In-Person Events Are How You Win in 2026

2026 is shaping up to be the year businesses rediscover the power of shaking hands, clinking glasses, and actually meeting their prospects in person. Don’t take my word for it...

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