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Clef 20icon


Clef replaces usernames and passwords online by identifying users' phones instead of anything they need to remember or type.

  • Stage Full Product Ready
  • Industry Internet / Web Services
  • Location Oakland, CA, US
  • Currency USD
  • Founded June 2013
  • Employees 3
  • Website

Company Summary

Clef is leveraging the mass adoption of smartphone technology to make an identity platform for the modern web, creating a totally new approach to logging in online. We've built a mobile app that lets any site recognize their users based on their phones, instead of anything they have to remember or type. Clef puts military grade cryptography in the hands of every user — and it's much easier than a password.


  • Mark Hudnall previously worked at Ning and Minted, where he focused on mobile development. He holds a BA in Computer Science from Pomona College.

  • Jesse Pollak previously worked at BuzzFeed and was a hackNY fellow. He attended Pomona College where he studied Computer Science and Linguistics.

  • Brennen Byrne previously worked at Adobe and H. Bloom, where he focused on mobile development and platform consistency. He holds a BA in Computer Science and English from Pomona College.


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    Stan Doty