Expel
Expel is a cybersecurity company specializing in Security Operations, founded in 2016 and headquartered in Herndon, United States. It has raised $288.8M in equity across 6 priced rounds, employs about 475 people, and is privately held.
updated Oct 10, 2026
Latest Expel news and company activity
What Expel did, dated — selected moves from the record, one per kind, newest first.
- Sep 2026RecognitionAI-augmented, still human-led: What changed in the 2026 Gartner Market Guide for Managed Detection and Response
- Aug 2026Product launchExpel Launches AI Attack Surface MDR Solution
- Aug 2026Product launchExpel Launches AI Attack Surface MDR Solution
- Apr 2026Exec changeGreg Notch joins as Chief Technology Officer
Expel Momentum score
41/ 100
Mandos Momentum blends hiring, funding, traffic and sentiment into one score out of 100. The score is free; the pillars behind it unlock in the platform.
Expel funding
Expel has raised $288.8M in priced equity. Its most recent round was a Series E in October 2022.
- Equity raised
- $288.8M6 priced rounds
- Last round
- Series EOct 2022
Expel employees and hiring
Expel has about 475 employees, up 1% over the last 30 days, with 7 open roles.
- Employees
- 475
- 30-day change
- +1%
- Open roles
- 7
Expel competitors
Security professionals most often compare Expel against Arctic Wolf Networks Inc. and Daylight Security on cybersectools.com. The full competitive set, with overlap scoring, is in the platform.
ranked by CybersecTools comparison demand, 90 days
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The other 440 data points.
- Funding historyevery round, every investor named
- Headcount growthvelocity, departments, seniority
- Open jobs7 live postings, role mix
- Tech stackframeworks, clouds, security
