Built and backed by security experts

We built Sublime to put defenders in control, because no ones knows your network better than you do.

Josh Kamdjou

Founder & CEO

Josh started working for the DoD in high school and spent 10 years engaged in various offensive cyber initiatives and red teaming in the private sector. Phishing was always the fastest way for him to gain access to a network. He started Sublime to build a product that would stop him. Josh holds a B.Sc. in Computer Science from the University of Maryland. He lives in Washington, D.C. and enjoys weight lifting and spending time with family.

Ian Thiel

Co-Founder & COO

Ian was an early product and growth leader at Optimizely, where he led global go-to-market for new products. Most recently, he ran growth, marketing, and partnerships at Alto. Ian holds an M.Sc. in Management from Babson College and a B.Sc. in Economics and Mathematics from York College of Pennsylvania and enjoys hiking, running, and reading.


We’re backed by legendary investors from Silicon Valley and the security community, including:

Jahanvi Sardana

Partner, Index Ventures

Shardul Shah

Partner, Index Ventures

Dan Nguyen-Huu

Partner, Decibel

Jon Sakoda

Founding Partner, Decibel

Sam Lessin

General Partner, Slow Ventures

Dmitri Alperovitch

Co-Founder & Former CTO, CrowdStrike

Kevin Mahaffey

Founder, Lookout

Justin Label

Managing Director, Inner Loop Capital

Michael Sutton

Former CISO, Zscaler

Marty Roesch

Founder, Snort

Oliver Friedrichs

Founder, Phantom & Pangea

Rishi Bhargava

Co-founder, Demisto

Slavik Markovich

Co-founder, Demisto

Andrew Peterson

Co-founder & Former CEO, Signal Sciences

Sounil Yu

CISO, JupiterOne

Jerry Perullo


Pete Koomen

Co-Founder, Optimizely

Jeffrey Yoshimura

Former CMO, Snyk

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