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 474 people, and is privately held.
updated Sep 9, 2026
Latest Expel news and company activity
What Expel did, dated — selected moves from the record, one per kind, newest first.
- Aug 2026Product launchExpel Launches AI Attack Surface MDR Solution
- Aug 2026Product launchExpel Launches AI Attack Surface MDR Solution
- Aug 2026Positioning shiftPositioning: "Stop guessing where AI belongs in your SOC." → "From detection to done. Faster. Agentic MDR means AI speed, without tradeoffs."
- Apr 2026Exec changeGreg Notch joins as Chief Technology Officer
70 events tracked since Dec 2022 · selected events shownUnlock the complete Expel timeline
Expel Momentum score
34/ 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 474 employees, with 7 open roles.
- Employees
- 474
- 30-day change
- 0%
- Open roles
- 7
Expel competitors
Security professionals most often compare Expel against Arctic Wolf Networks Inc., Daylight Security, and WatchGuard on cybersectools.com. The full competitive set, with overlap scoring, is in the platform.
by search demand for comparison pages on cybersectools.com, 90 days
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
