About Ryan

In my day job I am CEO of Thunderbird, a Mozilla company. I work on technology that enriches people's lives - focusing on digital well-being, productivity and privacy. I build tech for good.

In my private life, I am a proud citizen of Kansas City, Missouri where I live with my wife and our three young daughters. In my community I am a public advocate for funding local journalism, universal Pre-K and programs to prevent violent crime.

My Work at Mozilla Thunderbird

During my time managing Thunderbird I have overseen the revival and exceptional growth of the Thunderbird productivity suite. I led the creation of the Thundermail email service (email that works for you, not advertisers) and the Thunderbolt sovereign AI client (that puts you in control).

Some other notable achievements from my time leading Thunderbird:

  • Raised revenue from $700,000 to $12.8m/yr
  • Moved Thunderbird onto Android and iOS (in addition to already being on Windows, MacOS and Linux)
  • Grown the team from a couple of contractors to more than 70 full-time employees

I have written on why the Thunderbird team has been successful these past 8 years under my leadership:

Success through two-way conversations with our community - State of Mozilla 2024
An Untold History of Thunderbird
WHY was Thunderbird 115 called “Supernova?” What caused the press to declare Thunderbird dead back in 2012? And how did we turn the ship around? Ryan Sipes answers these questions and much more in his personal recollection of Thunderbird’s history.

Advocacy in Kansas City

In my personal life, I strive to bring people together for the common good of my community in Kansas City. I spend time advocating for funding local journalism, universal Pre-K and community programs to prevent violent crime.

You can read some of my writing on those issues here:

The Pitch: Fall of The Call is continuation of a sad trend. We have the power to reverse course
Stories connect a community - making it not just a collection of individuals, but a group living and striving together in a common cause. Unfortunately, we live in a time when local storytelling is endangered. We have the power to fix it - here’s how.