How much funding has Stairwell raised?

Stairwell has raised $69.52M in total. Its most recent round was a Series B in October 2022.

Who are Stairwell's competitors?

Dropzone AI, Red Piranha, and Binary Defense are among the closest in Security Operations. The full competitive set, with overlap scoring, is in the platform.

Stairwell

Security OperationsSunnyvale, United Statesfounded 2019private

Stairwell is a cybersecurity company specializing in Security Operations, founded in 2019 and headquartered in Sunnyvale, United States. It has raised $69.52M in total funding, employs about 56 people, and is privately held.

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updated Aug 22, 2026

The record

What Stairwell did, dated.

Jul 2026Product launchStairwell Launches Backstory, the First Agentic Investigation Platform for Malware Blast Radius
Oct 2025Exec changeEmmy Linder, CEO at Stairwell – Interview Series
Jul 2025Exec changeStairwell Appoints Emmy Linder as New CEO to Lead Next Phase of Innovation and Growth

selected events only — the full dated record (9 events since Jul 2025) lives in the platform

Momentum

25 out of 100.

Momentum blends hiring, funding, traffic and sentiment into one score, recomputed daily. The score is free; the pillars behind it unlock in the platform.

Growthlocked

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Products

What Stairwell sells.

In the platform

The other 440 data points.

Funding historyevery round, every lead investor
Headcount growthvelocity, departments, seniority
Open jobslive postings, hiring pace, role mix
Tech stackframeworks, clouds, security

Similar in Security Operations

FAQ

Common questions about Stairwell.

How much funding has Stairwell raised?: Stairwell has raised $69.52M in total. Its most recent round was a Series B in October 2022.
How many people work at Stairwell?: About 56.
Who are Stairwell's competitors?: Dropzone AI, Red Piranha, and Binary Defense are among the closest in Security Operations. The full competitive set, with overlap scoring, is in the platform.