About Pepper Networks

The mission of Pepper Networks, LLC is to help people to better remember where they’ve been, what they’ve seen, what they’ve done and who they’ve met.

We're completely focused on creating and evolving the Timebox Photo Journal app, which enables people to collect, organize, and share their photo stories with family, friends and future generations. 

Founded in September 2011 by experienced entrepreneurs Mary Ellen Heinen and Len Kawell. The company is headquartered in Kirkland, WA.


Mary Ellen Heinen (CEO) – Pepper Networks is Mary Ellen’s 3rd startup. Prior to Pepper Networks, she was the co-founder of Pepper Computer, Inc, developers of software and hardware for tablet computers including the award-winning Pepper Pad. 

Prior to that she was a co-founder of Glassbook, Inc., a software company that developed the Glassbook ebook reader, content server and digital rights management system. Glassbook was acquired by Adobe in 2000. 

Mary Ellen holds an MA in Library and Information Studies from the University of Oklahoma and a BA from the University of Wisconsin – Milwaukee. 


Len Kawell (CTO) – Pepper Networks is Len’s 4th startup. Most recently he was a Distinguished Engineer at Microsoft working on Windows Phone and Xbox. Before Microsoft, Len was also a co-founder of Pepper Computer, Inc., and a co-founder and the president of Glassbook, Inc. 

Prior to Glassbook, Len was one of the three visionary founders of Iris Associates, Inc., where he co-designed and developed Lotus Notes, the first commercial groupware product. This innovative, collaboration and messaging software is still in use by more than 100 million people worldwide. 

Len holds a BS in Computer Science from the University of Illinois at Urbana-Champaign.

Timebox® is a registered trademark of Pepper Networks, LLC. 

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