Stairwell Inc Employee Directory

Computer and Network SecurityCalifornia, United States51-200 Employees

Stairwell operates in the computer and network security space, prioritizing a data-centric approach to threat detection. It collects and stores all executable files and related compromise signals, continually reevaluating them to determine if malware has ever been on a system, and to pinpoint when and where that occurred.

Based in Sunnyvale, California, the company serves organizations seeking retrospective visibility into malware activity to inform defense decisions. Its work centers on helping security teams understand the historical spread of threats across their environments. In July 2025, Stairwell named Emmy Linder as chief executive officer to guide the next phase of its development.

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