How much funding has Expel raised?

Expel has raised $288.8M in total. Its most recent round was a Series E in October 2022.

How many people work at Expel?

About 478, up 1% over the last 30 days, with 4 open roles.

Who are Expel'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.

Expel

Security OperationsHerndon, United Statesfounded 2016private

Expel is a cybersecurity company specializing in Security Operations, founded in 2016 and headquartered in Herndon, United States. It has raised $288.8M in total funding, employs about 478 people, and is privately held.

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updated Aug 22, 2026

The record

What Expel did, dated.

Aug 2026Product launchExpel Launches AI Attack Surface MDR Solution
Jun 2026Feature launchExpel adds agentic AI to Ruxie security operations
Nov 2025PartnershipAutomate Expel MDR Workflows with Torq
Nov 2025Exec changeExpel co-founder Justin Bajko transitions to new role as Chief Strategy Officer

selected events only — the full dated record (32 events since May 2023) lives in the platform

Momentum

36 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.

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Products

What Expel sells.

In the platform

The other 440 data points.

Funding historyevery round, every lead investor
Headcount growthvelocity, departments, seniority
Open jobs4 live postings, role mix
Tech stackframeworks, clouds, security

Similar in Security Operations

FAQ

Common questions about Expel.

How much funding has Expel raised?: Expel has raised $288.8M in total. Its most recent round was a Series E in October 2022.
How many people work at Expel?: About 478, up 1% over the last 30 days, with 4 open roles.
Who are Expel'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.